diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c119f8d5b7..11b0d93abf 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,12 +1,9 @@
 name: CI
 
 on:
-  # Triggers the workflow on push only for the master branch or pull request events
   push:
-    branches: [master]
+    branches: [main]
   pull_request:
-
-  # Allows you to run this workflow manually from the Actions tab
   workflow_dispatch:
 
 defaults:
@@ -16,134 +13,89 @@ defaults:
 jobs:
   # This workflow contains a single job called "build"
   build:
-    name: "Python ${{ matrix.python-version }} on ${{ matrix.os }} ${{ matrix.name-suffix }}"
+    name: "Python ${{ matrix.python-version }} on ${{ matrix.os }} ${{ matrix.QT_API }}"
     runs-on: ${{ matrix.os }}
     strategy:
+      fail-fast: false
       matrix:
         include:
-          - name-suffix: "PyQt5 sdist"
-            os: ubuntu-20.04
+          - os: ubuntu-20.04
             python-version: "3.8"
-            BUILD_OPTION: --sdist
-            QT_BINDING: PyQt5
-            RUN_TESTS_OPTIONS: --qt-binding=PyQt5 --no-opencl --low-mem
-          - name-suffix: "PyQt5 wheel"
-            os: macos-latest
-            python-version: "3.10"
-            BUILD_OPTION: --wheel
-            QT_BINDING: PyQt5
-            RUN_TESTS_OPTIONS: --qt-binding=PyQt5 --no-opencl --low-mem
+            QT_API: PyQt5
+          - os: ubuntu-latest
+            python-version: "3.11"
+            QT_API: PyQt6
+          - os: ubuntu-latest
+            python-version: "3.12"
+            QT_API: PySide6
 
-          - name-suffix: "PySide6 sdist"
-            os: ubuntu-latest
-            python-version: "3.8"
-            BUILD_OPTION: --sdist
-            QT_BINDING: PySide6
-            RUN_TESTS_OPTIONS: --qt-binding=PySide6 --no-opencl --low-mem
-          - name-suffix: "PySide6 wheel"
-            os: macos-latest
+          - os: macos-13
+            python-version: "3.10"
+            QT_API: PyQt5
+          - os: macos-13
+            python-version: "3.12"
+            QT_API: PyQt6
+          - os: macos-13
             python-version: "3.9"
-            BUILD_OPTION: --wheel
-            QT_BINDING: "PySide6<6.7"
-            RUN_TESTS_OPTIONS: --qt-binding=PySide6 --no-opencl --low-mem
+            QT_API: PySide6
 
-          - name-suffix: "PyQt6 wheel"
-            os: ubuntu-latest
-            python-version: "3.11"
-            BUILD_OPTION: --wheel
-            QT_BINDING: PyQt6
-            RUN_TESTS_OPTIONS: --qt-binding=PyQt6 --no-opengl --low-mem
-          - name-suffix: "PyQt6 wheel"
-            os: macos-latest
-            python-version: "3.11"
-            BUILD_OPTION: --wheel
-            QT_BINDING: PyQt6
-            RUN_TESTS_OPTIONS: --qt-binding=PyQt6 --no-opencl --low-mem
-
-          - name-suffix: "No GUI wheel"
-            os: windows-latest
+          - os: windows-latest
             python-version: "3.9"
-            BUILD_COMMAND: --wheel
-            QT_BINDING: PyQt5
-            RUN_TESTS_OPTIONS: --no-gui --low-mem
-            # No GUI tests on Windows
+            QT_API: PyQt5
+          - os: windows-latest
+            python-version: "3.12"
+            QT_API: PyQt6
+          - os: windows-latest
+            python-version: "3.10"
+            QT_API: PySide6
 
-    # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
       - uses: actions/checkout@v4
 
-        # Install X server packages
+        # Install packages:
+        # OpenCL lib and icd
+        # xvfb to run the GUI test headless
         # libegl1-mesa: Required by Qt xcb platform plugin
-        # ocl-icd-opencl-dev: OpenCL headers, lib and icd loader
         # libgl1-mesa-glx: For OpenGL
         # xserver-xorg-video-dummy: For OpenGL
-        # libxkbcommon-x11-0: needed for Qt plugins
-      - name: Install X server
+        # libxkbcommon-x11-0, ..: needed for Qt plugins
+      - name: Install system packages
         if: runner.os == 'Linux'
         run: |
           sudo apt-get update
-          sudo apt-get install libegl1-mesa ocl-icd-opencl-dev intel-opencl-icd libgl1-mesa-glx xserver-xorg-video-dummy libxkbcommon-x11-0 libxkbcommon0 libxkbcommon-dev libxcb-icccm4 libxcb-image0 libxcb-shm0 libxcb-keysyms1 libxcb-randr0 libxcb-render-util0 libxcb-render0 libxcb-shape0 libxcb-sync1 libxcb-xfixes0 libxcb-xinerama0 libxcb-xkb1 libxcb-cursor0 libxcb1
+          sudo apt-get install ocl-icd-opencl-dev intel-opencl-icd xvfb libegl1-mesa libgl1-mesa-glx xserver-xorg-video-dummy libxkbcommon-x11-0 libxkbcommon0 libxkbcommon-dev libxcb-icccm4 libxcb-image0 libxcb-shm0 libxcb-keysyms1 libxcb-randr0 libxcb-render-util0 libxcb-render0 libxcb-shape0 libxcb-sync1 libxcb-xfixes0 libxcb-xinerama0 libxcb-xkb1 libxcb-cursor0 libxcb1
 
-      # Runs a single command using the runners shell
-      - name: Set up Python
-        uses: actions/setup-python@v5
+      - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
           cache: "pip"
 
-      - name: Upgrade distribution modules
+      - name: Install build dependencies
         run: |
-          python -m pip install --upgrade pip
-          pip install --upgrade build setuptools wheel
-          pip install --upgrade --pre cython
-
-      - name: Print python info used for build
-        run: |
-          python ./ci/info_platform.py
+          pip install --upgrade --pre build cython setuptools wheel
           pip list
 
-      - name: Generate source package or wheel
+      - name: Build
+        env:
+          MACOSX_DEPLOYMENT_TARGET: "10.9"
         run: |
-          if [ ${{ runner.os }} == 'macOS' ]; then
-              export MACOSX_DEPLOYMENT_TARGET=10.9;
-          fi
-          python -m build --no-isolation ${{ matrix.BUILD_OPTION }}
+          python -m build --no-isolation
           ls dist
 
-      - name: Pre-install dependencies
-        run: |
-          if [ -s "ci/requirements-pinned.txt" ];
-          then
-            pip install -r ci/requirements-pinned.txt;
-          fi
-          pip install --pre -r requirements.txt
-          pip uninstall -y PyQt5 PyQt6 PySide6
-          pip install --pre "${{ matrix.QT_BINDING }}"
-
-      - name: Install pytest
-        run: |
-          pip install pytest
-          pip install pytest-xvfb
-          pip install pytest-mock
-
-      - name: Install silx package
-        run: pip install --pre --find-links dist/ --no-cache-dir --no-index --no-build-isolation silx
-
-      - name: Print python info used for tests
+      - name: Install
         run: |
+          pip install -r ci/requirements-pinned.txt
+          pip install --pre "${{ matrix.QT_API }}"
+          pip install --pre "$(ls dist/silx*.whl)[full,test]"
           python ./ci/info_platform.py
           pip list
 
-      # For Linux: Start X server with dummy video dirver
-      # Use this instead of Xvfb to have RANDR extension
-      # Otherwise there is a bug with Qt5.10.0
-      - name: Run the tests
+      - name: Test
+        env:
+          QT_API: ${{ matrix.QT_API }}
+          SILX_TEST_LOW_MEM: "False"
         run: |
-          if [ ${{ runner.os }} == 'Linux' ]; then
-              export OCL_ICD_VENDORS=$(pwd)/intel_opencl_icd/vendors
-              export DISPLAY=:99.0
-              Xorg -noreset +extension GLX +extension RANDR +extension RENDER -logfile ./99.log -config ./ci/xorg.conf :99 &
-              sleep 3
+          if [ ${{ runner.os }} == 'Windows' ]; then
+              export WITH_GL_TEST=False
           fi
-          echo "RUN_TESTS_OPTIONS="${{ matrix.RUN_TESTS_OPTIONS }}
-          python run_tests.py --installed -v ${{ matrix.RUN_TESTS_OPTIONS }}
+          python -c "import silx.test, sys; sys.exit(silx.test.run_tests(verbosity=1, args=['--qt-binding=${{ matrix.QT_API }}']));"
diff --git a/ci/appveyor.yml b/ci/appveyor.yml
index d4b0fa1790..4b5118dbd2 100644
--- a/ci/appveyor.yml
+++ b/ci/appveyor.yml
@@ -21,25 +21,22 @@ environment:
     global:
         WIN_SDK_ROOT: "C:\\Program Files\\Microsoft SDKs\\Windows"
         VENV_BUILD_DIR: "venv_build"
-        VENV_TEST_DIR: "venv_test"
+        VENV_TEST_DIR: "..\\venv_test"
 
     matrix:
         # Python 3.9
         - PYTHON_DIR: "C:\\Python39-x64"
-          QT_BINDING: "PyQt5"
-          WITH_GL_TEST: True
+          QT_API: "PyQt5"
           PIP_OPTIONS: "-q --pre"
 
         # Python 3.12
         - PYTHON_DIR: "C:\\Python312-x64"
-          QT_BINDING: "PySide6<6.7"
-          WITH_GL_TEST: True
+          QT_API: "PySide6"
           PIP_OPTIONS: "-q --pre"
 
         # Python 3.11
         - PYTHON_DIR: "C:\\Python311-x64"
-          QT_BINDING: "PyQt6"
-          WITH_GL_TEST: True
+          QT_API: "PyQt6"
           PIP_OPTIONS: "-q"
 
 
@@ -56,7 +53,7 @@ install:
     - "python -m pip install %PIP_OPTIONS% --upgrade pip"
 
     # Download Mesa OpenGL in Python directory when testing OpenGL
-    - IF %WITH_GL_TEST%==True curl -fsS -o %PYTHON_DIR%\\opengl32.dll http://www.silx.org/pub/silx/continuous_integration/opengl32_mingw-mesa-x86_64.dll
+    - curl -fsS -o %PYTHON_DIR%\\opengl32.dll https://www.silx.org/pub/silx/continuous_integration/opengl32_mingw-mesa-x86_64.dll
 
 build_script:
     # Create build virtualenv
@@ -94,8 +91,7 @@ before_test:
     - pip install %PIP_OPTIONS% -r requirements.txt
 
     # Install selected Qt binding
-    - "pip uninstall -y PyQt5 PySide6 PyQt6"
-    - pip install %PIP_OPTIONS% "%QT_BINDING%"
+    - pip install %PIP_OPTIONS% "%QT_API%"
 
     # Install pytest
     - "pip install %PIP_OPTIONS% pytest"
@@ -118,8 +114,7 @@ before_test:
 
 test_script:
     # Run tests with selected Qt binding and without OpenCL
-    - echo "WITH_GL_TEST=%WITH_GL_TEST%"
-    - "python run_tests.py --installed -v --no-opencl --low-mem"
+    - python -c "import silx.test, sys; sys.exit(silx.test.run_tests(verbosity=1, args=('--no-opencl', '--low-mem', '--qt-binding=%QT_API%')));"
 
 after_test:
     # Leave test virtualenv
diff --git a/ci/xorg.conf b/ci/xorg.conf
deleted file mode 100644
index 4038f31888..0000000000
--- a/ci/xorg.conf
+++ /dev/null
@@ -1,21 +0,0 @@
-Section "Device"
-    Identifier  "Video Device"
-    Driver      "dummy"
-EndSection
-
-Section "Monitor"
-    Identifier  "Monitor"
-    HorizSync 31.5-48.5
-    VertRefresh 50-70
-EndSection
-
-Section "Screen"
-    Identifier  "Default Screen"
-    Monitor     "Monitor"
-    Device      "Video Device"
-    DefaultDepth 24
-    SubSection "Display"
-    Depth 24
-    Modes "1024x768"
-    EndSubSection
-EndSection
diff --git a/pyproject.toml b/pyproject.toml
index 4b95617e42..8094c56e8e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,16 +13,3 @@ safe = true
 
 [tool.pytest.ini_options]
 minversion = "6.0"
-python_files = [
-    "test/test*.py",
-    "test/Test*.py",
-]
-python_classes = "Test"
-python_functions = "test"
-filterwarnings = [
-    "error",
-    # note the use of single quote below to denote "raw" strings in TOML
-    'ignore:tostring\(\) is deprecated. Use tobytes\(\) instead\.:DeprecationWarning:OpenGL',
-    'ignore:Jupyter is migrating its paths to use standard platformdirs:DeprecationWarning',
-    'ignore:Unable to import recommended hash:UserWarning:pytools',
-]
diff --git a/run_tests.py b/run_tests.py
index 63f5612862..1dc6c99a46 100755
--- a/run_tests.py
+++ b/run_tests.py
@@ -170,22 +170,10 @@ def normalize_option(option):
             return os.path.join(PROJECT_PATH, *option_parts[2:])
         return option
 
-    args = [normalize_option(p) for p in sys.argv[1:] if p != "--installed"]
-
-    # Run test on PROJECT_PATH if nothing is specified
-    without_options = [a for a in args if not a.startswith("-")]
-    if len(without_options) == 0:
-        args += [PROJECT_PATH]
-
-    argv = ["--rootdir", PROJECT_PATH] + args
+    test_module = importlib.import_module(f"{PROJECT_NAME}.test")
     sys.exit(
-        subprocess.run(
-            [
-                sys.executable,
-                "-m",
-                "pytest",
-            ]
-            + argv,
-            check=False,
-        ).returncode
+        test_module.run_tests(
+            module=None,
+            args=[normalize_option(p) for p in sys.argv[1:] if p != "--installed"],
+        )
     )
diff --git a/src/silx/gui/dialog/test/test_datafiledialog.py b/src/silx/gui/dialog/test/test_datafiledialog.py
index 1837f22609..7f6b17c09a 100644
--- a/src/silx/gui/dialog/test/test_datafiledialog.py
+++ b/src/silx/gui/dialog/test/test_datafiledialog.py
@@ -23,6 +23,8 @@
 # ###########################################################################*/
 """Test for silx.gui.hdf5 module"""
 
+from __future__ import annotations
+
 __authors__ = ["V. Valls"]
 __license__ = "MIT"
 __date__ = "08/03/2019"
@@ -47,7 +49,7 @@
 
 def setUpModule():
     global _tmpDirectory
-    _tmpDirectory = tempfile.mkdtemp(prefix=__name__)
+    _tmpDirectory = os.path.realpath(tempfile.mkdtemp(prefix=__name__))
 
     data = numpy.arange(100 * 100)
     data.shape = 100, 100
@@ -123,18 +125,27 @@ def qWaitForPendingActions(self, dialog):
         raise RuntimeError("Still have pending actions")
 
     def assertSamePath(self, path1, path2):
-        path1_ = os.path.normcase(path1)
-        path2_ = os.path.normcase(path2)
-        if path1_ != path2_:
-            # Use the unittest API to log and display error
-            self.assertEqual(path1, path2)
+        self.assertEqual(
+            os.path.normcase(os.path.realpath(path1)),
+            os.path.normcase(os.path.realpath(path2)),
+            msg=f"Paths differs: {path1} != {path2}",
+        )
 
-    def assertNotSamePath(self, path1, path2):
-        path1_ = os.path.normcase(path1)
-        path2_ = os.path.normcase(path2)
-        if path1_ == path2_:
-            # Use the unittest API to log and display error
-            self.assertNotEqual(path1, path2)
+    def assertSameUrls(
+        self,
+        url1: silx.io.url.DataUrl | str,
+        url2: silx.io.url.DataUrl | str,
+    ):
+        """Check that both DataUrls are equivalent"""
+        if isinstance(url1, str):
+            url1 = silx.io.url.DataUrl(url1)
+        if isinstance(url2, str):
+            url2 = silx.io.url.DataUrl(url2)
+
+        self.assertEqual(url1.scheme(), url2.scheme())
+        self.assertSamePath(url1.file_path(), url2.file_path())
+        self.assertEqual(url1.data_path(), url2.data_path())
+        self.assertEqual(url1.data_slice(), url2.data_slice())
 
 
 class TestDataFileDialogInteraction(testutils.TestCaseQt, _UtilsMixin):
@@ -273,7 +284,7 @@ def testClickOnBackToParentTool(self):
         dialog.show()
         self.qWaitForWindowExposed(dialog)
 
-        url = testutils.findChildren(dialog, qt.QLineEdit, name="url")[0]
+        urlLineEdit = testutils.findChildren(dialog, qt.QLineEdit, name="url")[0]
         action = testutils.findChildren(dialog, qt.QAction, name="toParentAction")[0]
         toParentButton = testutils.getQToolButtonFromAction(action)
         filename = _tmpDirectory + "/data/data.h5"
@@ -282,51 +293,47 @@ def testClickOnBackToParentTool(self):
         path = silx.io.url.DataUrl(file_path=filename, data_path="/group/image").path()
         dialog.selectUrl(path)
         self.qWaitForPendingActions(dialog)
-        path = silx.io.url.DataUrl(
+        url = silx.io.url.DataUrl(
             scheme="silx", file_path=filename, data_path="/group/image"
-        ).path()
-        self.assertSamePath(url.text(), path)
+        )
+        self.assertSameUrls(urlLineEdit.text(), url)
         # test
         self.mouseClick(toParentButton, qt.Qt.LeftButton)
         self.qWaitForPendingActions(dialog)
-        path = silx.io.url.DataUrl(
-            scheme="silx", file_path=filename, data_path="/"
-        ).path()
-        self.assertSamePath(url.text(), path)
+        url = silx.io.url.DataUrl(scheme="silx", file_path=filename, data_path="/")
+        self.assertSameUrls(urlLineEdit.text(), url)
 
         self.mouseClick(toParentButton, qt.Qt.LeftButton)
         self.qWaitForPendingActions(dialog)
-        self.assertSamePath(url.text(), _tmpDirectory + "/data")
+        self.assertSamePath(urlLineEdit.text(), _tmpDirectory + "/data")
 
         self.mouseClick(toParentButton, qt.Qt.LeftButton)
         self.qWaitForPendingActions(dialog)
-        self.assertSamePath(url.text(), _tmpDirectory)
+        self.assertSamePath(urlLineEdit.text(), _tmpDirectory)
 
     def testClickOnBackToRootTool(self):
         dialog = self.createDialog()
         dialog.show()
         self.qWaitForWindowExposed(dialog)
 
-        url = testutils.findChildren(dialog, qt.QLineEdit, name="url")[0]
+        urlLineEdit = testutils.findChildren(dialog, qt.QLineEdit, name="url")[0]
         action = testutils.findChildren(dialog, qt.QAction, name="toRootFileAction")[0]
         button = testutils.getQToolButtonFromAction(action)
         filename = _tmpDirectory + "/data.h5"
 
         # init state
-        path = silx.io.url.DataUrl(
+        url = silx.io.url.DataUrl(
             scheme="silx", file_path=filename, data_path="/group/image"
-        ).path()
-        dialog.selectUrl(path)
+        )
+        dialog.selectUrl(url.path())
         self.qWaitForPendingActions(dialog)
-        self.assertSamePath(url.text(), path)
+        self.assertSameUrls(urlLineEdit.text(), url)
         self.assertTrue(button.isEnabled())
         # test
         self.mouseClick(button, qt.Qt.LeftButton)
         self.qWaitForPendingActions(dialog)
-        path = silx.io.url.DataUrl(
-            scheme="silx", file_path=filename, data_path="/"
-        ).path()
-        self.assertSamePath(url.text(), path)
+        url = silx.io.url.DataUrl(scheme="silx", file_path=filename, data_path="/")
+        self.assertSameUrls(urlLineEdit.text(), url)
         # self.assertFalse(button.isEnabled())
 
     def testClickOnBackToDirectoryTool(self):
@@ -334,24 +341,24 @@ def testClickOnBackToDirectoryTool(self):
         dialog.show()
         self.qWaitForWindowExposed(dialog)
 
-        url = testutils.findChildren(dialog, qt.QLineEdit, name="url")[0]
+        urlLineEdit = testutils.findChildren(dialog, qt.QLineEdit, name="url")[0]
         action = testutils.findChildren(dialog, qt.QAction, name="toDirectoryAction")[0]
         button = testutils.getQToolButtonFromAction(action)
         filename = _tmpDirectory + "/data.h5"
 
         # init state
-        path = silx.io.url.DataUrl(file_path=filename, data_path="/group/image").path()
-        dialog.selectUrl(path)
+        url = silx.io.url.DataUrl(file_path=filename, data_path="/group/image")
+        dialog.selectUrl(url.path())
         self.qWaitForPendingActions(dialog)
-        path = silx.io.url.DataUrl(
+        url = silx.io.url.DataUrl(
             scheme="silx", file_path=filename, data_path="/group/image"
-        ).path()
-        self.assertSamePath(url.text(), path)
+        )
+        self.assertSameUrls(urlLineEdit.text(), url)
         self.assertTrue(button.isEnabled())
         # test
         self.mouseClick(button, qt.Qt.LeftButton)
         self.qWaitForPendingActions(dialog)
-        self.assertSamePath(url.text(), _tmpDirectory)
+        self.assertSamePath(urlLineEdit.text(), _tmpDirectory)
         self.assertFalse(button.isEnabled())
 
         # FIXME: There is an unreleased qt.QWidget without nameObject
@@ -363,7 +370,7 @@ def testClickOnHistoryTools(self):
         dialog.show()
         self.qWaitForWindowExposed(dialog)
 
-        url = testutils.findChildren(dialog, qt.QLineEdit, name="url")[0]
+        urlLineEdit = testutils.findChildren(dialog, qt.QLineEdit, name="url")[0]
         forwardAction = testutils.findChildren(
             dialog, qt.QAction, name="forwardAction"
         )[0]
@@ -378,15 +385,13 @@ def testClickOnHistoryTools(self):
         # Then we feed the history using selectPath
         dialog.selectUrl(filename)
         self.qWaitForPendingActions(dialog)
-        path2 = silx.io.url.DataUrl(
-            scheme="silx", file_path=filename, data_path="/"
-        ).path()
-        dialog.selectUrl(path2)
+        url = silx.io.url.DataUrl(scheme="silx", file_path=filename, data_path="/")
+        dialog.selectUrl(url.path())
         self.qWaitForPendingActions(dialog)
-        path3 = silx.io.url.DataUrl(
+        url2 = silx.io.url.DataUrl(
             scheme="silx", file_path=filename, data_path="/group"
-        ).path()
-        dialog.selectUrl(path3)
+        )
+        dialog.selectUrl(url2.path())
         self.qWaitForPendingActions(dialog)
         self.assertFalse(forwardAction.isEnabled())
         self.assertTrue(backwardAction.isEnabled())
@@ -396,14 +401,14 @@ def testClickOnHistoryTools(self):
         self.qWaitForPendingActions(dialog)
         self.assertTrue(forwardAction.isEnabled())
         self.assertTrue(backwardAction.isEnabled())
-        self.assertSamePath(url.text(), path2)
+        self.assertSameUrls(urlLineEdit.text(), url)
 
         button = testutils.getQToolButtonFromAction(forwardAction)
         self.mouseClick(button, qt.Qt.LeftButton)
         self.qWaitForPendingActions(dialog)
         self.assertFalse(forwardAction.isEnabled())
         self.assertTrue(backwardAction.isEnabled())
-        self.assertSamePath(url.text(), path3)
+        self.assertSameUrls(urlLineEdit.text(), url2)
 
     def testSelectImageFromEdf(self):
         dialog = self.createDialog()
@@ -420,7 +425,7 @@ def testSelectImageFromEdf(self):
         dialog.selectUrl(url.path())
         self.assertEqual(dialog._selectedData().shape, (100, 100))
         self.assertSamePath(dialog.selectedFile(), filename)
-        self.assertSamePath(dialog.selectedUrl(), url.path())
+        self.assertSameUrls(dialog.selectedUrl(), url)
 
     def testSelectImage(self):
         dialog = self.createDialog()
@@ -429,14 +434,12 @@ def testSelectImage(self):
 
         # init state
         filename = _tmpDirectory + "/data.h5"
-        path = silx.io.url.DataUrl(
-            scheme="silx", file_path=filename, data_path="/image"
-        ).path()
-        dialog.selectUrl(path)
+        url = silx.io.url.DataUrl(scheme="silx", file_path=filename, data_path="/image")
+        dialog.selectUrl(url.path())
         # test
         self.assertEqual(dialog._selectedData().shape, (100, 100))
         self.assertSamePath(dialog.selectedFile(), filename)
-        self.assertSamePath(dialog.selectedUrl(), path)
+        self.assertSameUrls(dialog.selectedUrl(), url)
 
     def testSelectScalar(self):
         dialog = self.createDialog()
@@ -445,14 +448,14 @@ def testSelectScalar(self):
 
         # init state
         filename = _tmpDirectory + "/data.h5"
-        path = silx.io.url.DataUrl(
+        url = silx.io.url.DataUrl(
             scheme="silx", file_path=filename, data_path="/scalar"
-        ).path()
-        dialog.selectUrl(path)
+        )
+        dialog.selectUrl(url.path())
         # test
         self.assertEqual(dialog._selectedData()[()], 10)
         self.assertSamePath(dialog.selectedFile(), filename)
-        self.assertSamePath(dialog.selectedUrl(), path)
+        self.assertSameUrls(dialog.selectedUrl(), url)
 
     def testSelectGroup(self):
         dialog = self.createDialog()
@@ -496,9 +499,7 @@ def testSelectH5_Activate(self):
         self.qWaitForPendingActions(dialog)
         browser = testutils.findChildren(dialog, qt.QWidget, name="browser")[0]
         filename = _tmpDirectory + "/data.h5"
-        path = silx.io.url.DataUrl(
-            scheme="silx", file_path=filename, data_path="/"
-        ).path()
+        url = silx.io.url.DataUrl(scheme="silx", file_path=filename, data_path="/")
         index = browser.rootIndex().model().index(filename)
         # click
         browser.selectIndex(index)
@@ -506,7 +507,7 @@ def testSelectH5_Activate(self):
         browser.activated.emit(index)
         self.qWaitForPendingActions(dialog)
         # test
-        self.assertSamePath(dialog.selectedUrl(), path)
+        self.assertSameUrls(dialog.selectedUrl(), url)
 
     def testSelectBadFileFormat_Activate(self):
         dialog = self.createDialog()
diff --git a/src/silx/gui/dialog/test/test_imagefiledialog.py b/src/silx/gui/dialog/test/test_imagefiledialog.py
index 9704b245a4..44a3929b8e 100644
--- a/src/silx/gui/dialog/test/test_imagefiledialog.py
+++ b/src/silx/gui/dialog/test/test_imagefiledialog.py
@@ -23,6 +23,8 @@
 # ###########################################################################*/
 """Test for silx.gui.hdf5 module"""
 
+from __future__ import annotations
+
 __authors__ = ["V. Valls"]
 __license__ = "MIT"
 __date__ = "08/03/2019"
@@ -130,18 +132,34 @@ def qWaitForPendingActions(self, dialog):
         raise RuntimeError("Still have pending actions")
 
     def assertSamePath(self, path1, path2):
-        path1_ = os.path.normcase(path1)
-        path2_ = os.path.normcase(path2)
-        if path1_ != path2_:
-            # Use the unittest API to log and display error
-            self.assertEqual(path1, path2)
+        self.assertEqual(
+            os.path.normcase(os.path.realpath(path1)),
+            os.path.normcase(os.path.realpath(path2)),
+            msg=f"Paths differs: {path1} != {path2}",
+        )
 
     def assertNotSamePath(self, path1, path2):
-        path1_ = os.path.normcase(path1)
-        path2_ = os.path.normcase(path2)
-        if path1_ == path2_:
-            # Use the unittest API to log and display error
-            self.assertNotEqual(path1, path2)
+        self.assertNotEqual(
+            os.path.normcase(os.path.realpath(path1)),
+            os.path.normcase(os.path.realpath(path2)),
+            msg=f"Paths are equals: {path1} == {path2}",
+        )
+
+    def assertSameUrls(
+        self,
+        url1: silx.io.url.DataUrl | str,
+        url2: silx.io.url.DataUrl | str,
+    ):
+        """Check that both DataUrls are equivalent"""
+        if isinstance(url1, str):
+            url1 = silx.io.url.DataUrl(url1)
+        if isinstance(url2, str):
+            url2 = silx.io.url.DataUrl(url2)
+
+        self.assertEqual(url1.scheme(), url2.scheme())
+        self.assertSamePath(url1.file_path(), url2.file_path())
+        self.assertEqual(url1.data_path(), url2.data_path())
+        self.assertEqual(url1.data_slice(), url2.data_slice())
 
 
 class TestImageFileDialogInteraction(testutils.TestCaseQt, _UtilsMixin):
@@ -395,12 +413,11 @@ def testSelectImageFromEdf(self):
 
         # init state
         filename = _tmpDirectory + "/singleimage.edf"
-        path = filename
-        dialog.selectUrl(path)
+        dialog.selectUrl(filename)
         self.assertEqual(dialog.selectedImage().shape, (100, 100))
         self.assertSamePath(dialog.selectedFile(), filename)
-        path = silx.io.url.DataUrl(scheme="fabio", file_path=filename).path()
-        self.assertSamePath(dialog.selectedUrl(), path)
+        url = silx.io.url.DataUrl(scheme="fabio", file_path=filename)
+        self.assertSameUrls(dialog.selectedUrl(), url)
 
     def testSelectImageFromEdf_Activate(self):
         dialog = self.createDialog()
@@ -412,7 +429,7 @@ def testSelectImageFromEdf_Activate(self):
         self.qWaitForPendingActions(dialog)
         browser = testutils.findChildren(dialog, qt.QWidget, name="browser")[0]
         filename = _tmpDirectory + "/singleimage.edf"
-        path = silx.io.url.DataUrl(scheme="fabio", file_path=filename).path()
+        url = silx.io.url.DataUrl(scheme="fabio", file_path=filename).path()
         index = browser.rootIndex().model().index(filename)
         # click
         browser.selectIndex(index)
@@ -422,7 +439,7 @@ def testSelectImageFromEdf_Activate(self):
         # test
         self.assertEqual(dialog.selectedImage().shape, (100, 100))
         self.assertSamePath(dialog.selectedFile(), filename)
-        self.assertSamePath(dialog.selectedUrl(), path)
+        self.assertSameUrls(dialog.selectedUrl(), url)
 
     def testSelectFrameFromEdf(self):
         dialog = self.createDialog()
@@ -431,16 +448,14 @@ def testSelectFrameFromEdf(self):
 
         # init state
         filename = _tmpDirectory + "/multiframe.edf"
-        path = silx.io.url.DataUrl(
-            scheme="fabio", file_path=filename, data_slice=(1,)
-        ).path()
-        dialog.selectUrl(path)
+        url = silx.io.url.DataUrl(scheme="fabio", file_path=filename, data_slice=(1,))
+        dialog.selectUrl(url.path())
         # test
         image = dialog.selectedImage()
         self.assertEqual(image.shape, (100, 100))
         self.assertEqual(image[0, 0], 1)
         self.assertSamePath(dialog.selectedFile(), filename)
-        self.assertSamePath(dialog.selectedUrl(), path)
+        self.assertSameUrls(dialog.selectedUrl(), url)
 
     def testSelectImageFromMsk(self):
         dialog = self.createDialog()
@@ -449,12 +464,12 @@ def testSelectImageFromMsk(self):
 
         # init state
         filename = _tmpDirectory + "/singleimage.msk"
-        path = silx.io.url.DataUrl(scheme="fabio", file_path=filename).path()
-        dialog.selectUrl(path)
+        url = silx.io.url.DataUrl(scheme="fabio", file_path=filename)
+        dialog.selectUrl(url.path())
         # test
         self.assertEqual(dialog.selectedImage().shape, (100, 100))
         self.assertSamePath(dialog.selectedFile(), filename)
-        self.assertSamePath(dialog.selectedUrl(), path)
+        self.assertSameUrls(dialog.selectedUrl(), url)
 
     def testSelectImageFromH5(self):
         dialog = self.createDialog()
@@ -463,14 +478,12 @@ def testSelectImageFromH5(self):
 
         # init state
         filename = _tmpDirectory + "/data.h5"
-        path = silx.io.url.DataUrl(
-            scheme="silx", file_path=filename, data_path="/image"
-        ).path()
-        dialog.selectUrl(path)
+        url = silx.io.url.DataUrl(scheme="silx", file_path=filename, data_path="/image")
+        dialog.selectUrl(url.path())
         # test
         self.assertEqual(dialog.selectedImage().shape, (100, 100))
         self.assertSamePath(dialog.selectedFile(), filename)
-        self.assertSamePath(dialog.selectedUrl(), path)
+        self.assertSameUrls(dialog.selectedUrl(), url)
 
     def testSelectH5_Activate(self):
         dialog = self.createDialog()
@@ -482,9 +495,7 @@ def testSelectH5_Activate(self):
         self.qWaitForPendingActions(dialog)
         browser = testutils.findChildren(dialog, qt.QWidget, name="browser")[0]
         filename = _tmpDirectory + "/data.h5"
-        path = silx.io.url.DataUrl(
-            scheme="silx", file_path=filename, data_path="/"
-        ).path()
+        url = silx.io.url.DataUrl(scheme="silx", file_path=filename, data_path="/")
         index = browser.rootIndex().model().index(filename)
         # click
         browser.selectIndex(index)
@@ -492,7 +503,7 @@ def testSelectH5_Activate(self):
         browser.activated.emit(index)
         self.qWaitForPendingActions(dialog)
         # test
-        self.assertSamePath(dialog.selectedUrl(), path)
+        self.assertSameUrls(dialog.selectedUrl(), url)
 
     def testSelectFrameFromH5(self):
         dialog = self.createDialog()
@@ -501,15 +512,15 @@ def testSelectFrameFromH5(self):
 
         # init state
         filename = _tmpDirectory + "/data.h5"
-        path = silx.io.url.DataUrl(
+        url = silx.io.url.DataUrl(
             scheme="silx", file_path=filename, data_path="/cube", data_slice=(1,)
-        ).path()
-        dialog.selectUrl(path)
+        )
+        dialog.selectUrl(url.path())
         # test
         self.assertEqual(dialog.selectedImage().shape, (100, 100))
         self.assertEqual(dialog.selectedImage()[0, 0], 1)
         self.assertSamePath(dialog.selectedFile(), filename)
-        self.assertSamePath(dialog.selectedUrl(), path)
+        self.assertSameUrls(dialog.selectedUrl(), url)
 
     def testSelectSingleFrameFromH5(self):
         dialog = self.createDialog()
@@ -518,18 +529,18 @@ def testSelectSingleFrameFromH5(self):
 
         # init state
         filename = _tmpDirectory + "/data.h5"
-        path = silx.io.url.DataUrl(
+        url = silx.io.url.DataUrl(
             scheme="silx",
             file_path=filename,
             data_path="/single_frame",
             data_slice=(0,),
-        ).path()
-        dialog.selectUrl(path)
+        )
+        dialog.selectUrl(url.path())
         # test
         self.assertEqual(dialog.selectedImage().shape, (100, 100))
         self.assertEqual(dialog.selectedImage()[0, 0], 5)
         self.assertSamePath(dialog.selectedFile(), filename)
-        self.assertSamePath(dialog.selectedUrl(), path)
+        self.assertSameUrls(dialog.selectedUrl(), url)
 
     def testSelectBadFileFormat_Activate(self):
         dialog = self.createDialog()
@@ -546,7 +557,7 @@ def testSelectBadFileFormat_Activate(self):
         browser.activated.emit(index)
         self.qWaitForPendingActions(dialog)
         # test
-        self.assertSamePath(dialog.selectedUrl(), filename)
+        self.assertSameUrls(dialog.selectedUrl(), filename)
 
     def _countSelectableItems(self, model, rootIndex):
         selectable = 0
diff --git a/src/silx/gui/fit/test/testBackgroundWidget.py b/src/silx/gui/fit/test/test_backgroundwidget.py
similarity index 93%
rename from src/silx/gui/fit/test/testBackgroundWidget.py
rename to src/silx/gui/fit/test/test_backgroundwidget.py
index 73e3fbab07..2001ad75b0 100644
--- a/src/silx/gui/fit/test/testBackgroundWidget.py
+++ b/src/silx/gui/fit/test/test_backgroundwidget.py
@@ -21,6 +21,7 @@
 # THE SOFTWARE.
 #
 # ###########################################################################*/
+from silx.gui import qt
 from silx.gui.utils.testutils import TestCaseQt
 
 from .. import BackgroundWidget
@@ -38,12 +39,16 @@ def setUp(self):
         self.qWaitForWindowExposed(self.bgdialog)
 
     def tearDown(self):
+        self.bgdialog.setAttribute(qt.Qt.WA_DeleteOnClose)
+        self.bgdialog.close()
         del self.bgdialog
         super(TestBackgroundWidget, self).tearDown()
 
     def testShow(self):
         self.bgdialog.show()
+        self.qWaitForWindowExposed(self.bgdialog)
         self.bgdialog.hide()
+        self.qapp.processEvents()
 
     def testAccept(self):
         self.bgdialog.accept()
diff --git a/src/silx/gui/fit/test/testFitConfig.py b/src/silx/gui/fit/test/test_fitconfig.py
similarity index 100%
rename from src/silx/gui/fit/test/testFitConfig.py
rename to src/silx/gui/fit/test/test_fitconfig.py
diff --git a/src/silx/gui/fit/test/testFitWidget.py b/src/silx/gui/fit/test/test_fitwidget.py
similarity index 100%
rename from src/silx/gui/fit/test/testFitWidget.py
rename to src/silx/gui/fit/test/test_fitwidget.py
diff --git a/src/silx/gui/hdf5/test/test_hdf5.py b/src/silx/gui/hdf5/test/test_hdf5.py
index 2bb25304f6..a3b8f43a35 100755
--- a/src/silx/gui/hdf5/test/test_hdf5.py
+++ b/src/silx/gui/hdf5/test/test_hdf5.py
@@ -73,10 +73,10 @@ def setUp(self):
         super(TestHdf5TreeModel, self).setUp()
 
     def waitForPendingOperations(self, model):
-        for _ in range(10):
+        for _ in range(20):
             if not model.hasPendingOperations():
                 break
-            self.qWait(10)
+            self.qWait(200)
         else:
             raise RuntimeError("Still waiting for a pending operation")
 
@@ -383,7 +383,9 @@ def testDropLastAsFirst(self):
         h5_1 = commonh5.File("/foo/bar/1.mock", "w")
         h5_2 = commonh5.File("/foo/bar/2.mock", "w")
         model.insertH5pyObject(h5_1)
+        self.qapp.processEvents()
         model.insertH5pyObject(h5_2)
+        self.qapp.processEvents()
         self.assertEqual(self.getItemName(model, 0), "1.mock")
         self.assertEqual(self.getItemName(model, 1), "2.mock")
         index = model.index(1, 0, qt.QModelIndex())
@@ -397,7 +399,9 @@ def testDropFirstAsLast(self):
         h5_1 = commonh5.File("/foo/bar/1.mock", "w")
         h5_2 = commonh5.File("/foo/bar/2.mock", "w")
         model.insertH5pyObject(h5_1)
+        self.qapp.processEvents()
         model.insertH5pyObject(h5_2)
+        self.qapp.processEvents()
         self.assertEqual(self.getItemName(model, 0), "1.mock")
         self.assertEqual(self.getItemName(model, 1), "2.mock")
         index = model.index(0, 0, qt.QModelIndex())
@@ -440,10 +444,10 @@ def tearDown(self):
         TestCaseQt.tearDown(self)
 
     def waitForPendingOperations(self, model):
-        for _ in range(10):
+        for _ in range(20):
             if not model.hasPendingOperations():
                 break
-            self.qWait(10)
+            self.qWait(200)
         else:
             raise RuntimeError("Still waiting for a pending operation")
 
diff --git a/src/silx/gui/plot/MaskToolsWidget.py b/src/silx/gui/plot/MaskToolsWidget.py
index 11bfc0629c..da8a4d17ee 100644
--- a/src/silx/gui/plot/MaskToolsWidget.py
+++ b/src/silx/gui/plot/MaskToolsWidget.py
@@ -396,7 +396,7 @@ def showEvent(self, event):
             self.plot.sigActiveImageChanged.disconnect(
                 self._activeImageChangedAfterCare
             )
-        except (RuntimeError, TypeError):
+        except (RuntimeError, TypeError, SystemError):
             pass
 
         # Sync with current active image
@@ -406,14 +406,14 @@ def showEvent(self, event):
     def hideEvent(self, event):
         try:
             self.plot.sigActiveImageChanged.disconnect(self._activeImageChanged)
-        except (RuntimeError, TypeError):
+        except (RuntimeError, TypeError, SystemError):
             pass
 
         image = self.getMaskedItem()
         if image is not None:
             try:
                 image.sigItemChanged.disconnect(self.__imageChanged)
-            except (RuntimeError, TypeError):
+            except (RuntimeError, TypeError, SystemError):
                 pass  # TODO should not happen
 
         if self.isMaskInteractionActivated():
@@ -503,7 +503,7 @@ def _setMaskedImage(self, image):
             # Disconnect from previous image
             try:
                 previous.sigItemChanged.disconnect(self.__imageChanged)
-            except (RuntimeError, TypeError):
+            except (RuntimeError, TypeError, SystemError):
                 pass  # TODO fixme should not happen
 
         # Set the image
diff --git a/src/silx/gui/plot/ScatterMaskToolsWidget.py b/src/silx/gui/plot/ScatterMaskToolsWidget.py
index bf34220061..f036d2d808 100644
--- a/src/silx/gui/plot/ScatterMaskToolsWidget.py
+++ b/src/silx/gui/plot/ScatterMaskToolsWidget.py
@@ -284,7 +284,7 @@ def showEvent(self, event):
             self.plot.sigActiveScatterChanged.disconnect(
                 self._activeScatterChangedAfterCare
             )
-        except (RuntimeError, TypeError):
+        except (RuntimeError, TypeError, SystemError):
             pass
         self._activeScatterChanged(None, None)  # Init mask + enable/disable widget
         self.plot.sigActiveScatterChanged.connect(self._activeScatterChanged)
@@ -294,7 +294,7 @@ def hideEvent(self, event):
             # if the method is not connected this raises a TypeError and there is no way
             # to know the connected slots
             self.plot.sigActiveScatterChanged.disconnect(self._activeScatterChanged)
-        except (RuntimeError, TypeError):
+        except (RuntimeError, TypeError, SystemError):
             _logger.info(sys.exc_info()[1])
 
         if self.isMaskInteractionActivated():
diff --git a/src/silx/gui/plot/test/testAlphaSlider.py b/src/silx/gui/plot/test/test_alphaslider.py
similarity index 100%
rename from src/silx/gui/plot/test/testAlphaSlider.py
rename to src/silx/gui/plot/test/test_alphaslider.py
diff --git a/src/silx/gui/plot/test/testAxis.py b/src/silx/gui/plot/test/test_axis.py
similarity index 100%
rename from src/silx/gui/plot/test/testAxis.py
rename to src/silx/gui/plot/test/test_axis.py
diff --git a/src/silx/gui/plot/test/testColorBar.py b/src/silx/gui/plot/test/test_colorbar.py
similarity index 100%
rename from src/silx/gui/plot/test/testColorBar.py
rename to src/silx/gui/plot/test/test_colorbar.py
diff --git a/src/silx/gui/plot/test/testCompareImages.py b/src/silx/gui/plot/test/test_compareimages.py
similarity index 100%
rename from src/silx/gui/plot/test/testCompareImages.py
rename to src/silx/gui/plot/test/test_compareimages.py
diff --git a/src/silx/gui/plot/test/testComplexImageView.py b/src/silx/gui/plot/test/test_compleximageview.py
similarity index 100%
rename from src/silx/gui/plot/test/testComplexImageView.py
rename to src/silx/gui/plot/test/test_compleximageview.py
diff --git a/src/silx/gui/plot/test/testCurvesROIWidget.py b/src/silx/gui/plot/test/test_curvesroiwidget.py
similarity index 100%
rename from src/silx/gui/plot/test/testCurvesROIWidget.py
rename to src/silx/gui/plot/test/test_curvesroiwidget.py
diff --git a/src/silx/gui/plot/test/testImageStack.py b/src/silx/gui/plot/test/test_imagestack.py
similarity index 100%
rename from src/silx/gui/plot/test/testImageStack.py
rename to src/silx/gui/plot/test/test_imagestack.py
diff --git a/src/silx/gui/plot/test/testImageView.py b/src/silx/gui/plot/test/test_imageview.py
similarity index 100%
rename from src/silx/gui/plot/test/testImageView.py
rename to src/silx/gui/plot/test/test_imageview.py
diff --git a/src/silx/gui/plot/test/testInteraction.py b/src/silx/gui/plot/test/test_interaction.py
similarity index 100%
rename from src/silx/gui/plot/test/testInteraction.py
rename to src/silx/gui/plot/test/test_interaction.py
diff --git a/src/silx/gui/plot/test/testItem.py b/src/silx/gui/plot/test/test_item.py
similarity index 100%
rename from src/silx/gui/plot/test/testItem.py
rename to src/silx/gui/plot/test/test_item.py
diff --git a/src/silx/gui/plot/test/testLegendSelector.py b/src/silx/gui/plot/test/test_legendselector.py
similarity index 100%
rename from src/silx/gui/plot/test/testLegendSelector.py
rename to src/silx/gui/plot/test/test_legendselector.py
diff --git a/src/silx/gui/plot/test/testLimitConstraints.py b/src/silx/gui/plot/test/test_limitconstraints.py
similarity index 100%
rename from src/silx/gui/plot/test/testLimitConstraints.py
rename to src/silx/gui/plot/test/test_limitconstraints.py
diff --git a/src/silx/gui/plot/test/testMaskToolsWidget.py b/src/silx/gui/plot/test/test_masktoolswidget.py
similarity index 99%
rename from src/silx/gui/plot/test/testMaskToolsWidget.py
rename to src/silx/gui/plot/test/test_masktoolswidget.py
index 1428687311..7f97739d55 100644
--- a/src/silx/gui/plot/test/testMaskToolsWidget.py
+++ b/src/silx/gui/plot/test/test_masktoolswidget.py
@@ -57,6 +57,8 @@ def setUp(self):
         self.maskWidget = self.widget.widget()
 
     def tearDown(self):
+        self.widget.setAttribute(qt.Qt.WA_DeleteOnClose)
+        self.widget.close()
         del self.maskWidget
         del self.widget
         super(TestMaskToolsWidget, self).tearDown()
diff --git a/src/silx/gui/plot/test/testPixelIntensityHistoAction.py b/src/silx/gui/plot/test/test_pixelintensityhistoaction.py
similarity index 100%
rename from src/silx/gui/plot/test/testPixelIntensityHistoAction.py
rename to src/silx/gui/plot/test/test_pixelintensityhistoaction.py
diff --git a/src/silx/gui/plot/test/testPlotActions.py b/src/silx/gui/plot/test/test_plotactions.py
similarity index 100%
rename from src/silx/gui/plot/test/testPlotActions.py
rename to src/silx/gui/plot/test/test_plotactions.py
diff --git a/src/silx/gui/plot/test/testPlotInteraction.py b/src/silx/gui/plot/test/test_plotinteraction.py
similarity index 100%
rename from src/silx/gui/plot/test/testPlotInteraction.py
rename to src/silx/gui/plot/test/test_plotinteraction.py
diff --git a/src/silx/gui/plot/test/testPlotWidget.py b/src/silx/gui/plot/test/test_plotwidget.py
similarity index 99%
rename from src/silx/gui/plot/test/testPlotWidget.py
rename to src/silx/gui/plot/test/test_plotwidget.py
index 9a8b277991..0e273c11ef 100755
--- a/src/silx/gui/plot/test/testPlotWidget.py
+++ b/src/silx/gui/plot/test/test_plotwidget.py
@@ -1,6 +1,6 @@
 # /*##########################################################################
 #
-# Copyright (c) 2016-2023 European Synchrotron Radiation Facility
+# Copyright (c) 2016-2024 European Synchrotron Radiation Facility
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -2057,6 +2057,8 @@ class TestSpecial_ExplicitMplBackend(TestSpecialBackend):
 
 
 @pytest.mark.filterwarnings("ignore:All-NaN slice encountered:RuntimeWarning")
+@pytest.mark.filterwarnings("ignore:.* converting a masked element to nan.:UserWarning")
+@pytest.mark.filterwarnings("ignore:All-NaN axis encountered:RuntimeWarning")
 @pytest.mark.parametrize("plotWidget", ("mpl", "gl"), indirect=True)
 @pytest.mark.parametrize(
     "xerror,yerror",
diff --git a/src/silx/gui/plot/test/testPlotWidgetActiveItem.py b/src/silx/gui/plot/test/test_plotwidgetactiveitem.py
similarity index 100%
rename from src/silx/gui/plot/test/testPlotWidgetActiveItem.py
rename to src/silx/gui/plot/test/test_plotwidgetactiveitem.py
diff --git a/src/silx/gui/plot/test/testPlotWidgetDataMargins.py b/src/silx/gui/plot/test/test_plotwidgetdatamargins.py
similarity index 100%
rename from src/silx/gui/plot/test/testPlotWidgetDataMargins.py
rename to src/silx/gui/plot/test/test_plotwidgetdatamargins.py
diff --git a/src/silx/gui/plot/test/testPlotWidgetNoBackend.py b/src/silx/gui/plot/test/test_plotwidgetnobackend.py
similarity index 100%
rename from src/silx/gui/plot/test/testPlotWidgetNoBackend.py
rename to src/silx/gui/plot/test/test_plotwidgetnobackend.py
diff --git a/src/silx/gui/plot/test/testPlotWindow.py b/src/silx/gui/plot/test/test_plotwindow.py
similarity index 100%
rename from src/silx/gui/plot/test/testPlotWindow.py
rename to src/silx/gui/plot/test/test_plotwindow.py
diff --git a/src/silx/gui/plot/test/testRoiStatsWidget.py b/src/silx/gui/plot/test/test_roistatswidget.py
similarity index 100%
rename from src/silx/gui/plot/test/testRoiStatsWidget.py
rename to src/silx/gui/plot/test/test_roistatswidget.py
diff --git a/src/silx/gui/plot/test/testSaveAction.py b/src/silx/gui/plot/test/test_saveaction.py
similarity index 100%
rename from src/silx/gui/plot/test/testSaveAction.py
rename to src/silx/gui/plot/test/test_saveaction.py
diff --git a/src/silx/gui/plot/test/testScatterMaskToolsWidget.py b/src/silx/gui/plot/test/test_scattermasktoolswidget.py
similarity index 99%
rename from src/silx/gui/plot/test/testScatterMaskToolsWidget.py
rename to src/silx/gui/plot/test/test_scattermasktoolswidget.py
index 5dc14e1a7b..0ba3d5955b 100644
--- a/src/silx/gui/plot/test/testScatterMaskToolsWidget.py
+++ b/src/silx/gui/plot/test/test_scattermasktoolswidget.py
@@ -60,6 +60,8 @@ def setUp(self):
         self.maskWidget = self.widget.widget()
 
     def tearDown(self):
+        self.widget.setAttribute(qt.Qt.WA_DeleteOnClose)
+        self.widget.close()
         del self.maskWidget
         del self.widget
         super(TestScatterMaskToolsWidget, self).tearDown()
diff --git a/src/silx/gui/plot/test/testScatterView.py b/src/silx/gui/plot/test/test_scatterview.py
similarity index 100%
rename from src/silx/gui/plot/test/testScatterView.py
rename to src/silx/gui/plot/test/test_scatterview.py
diff --git a/src/silx/gui/plot/test/testStackView.py b/src/silx/gui/plot/test/test_stackview.py
similarity index 100%
rename from src/silx/gui/plot/test/testStackView.py
rename to src/silx/gui/plot/test/test_stackview.py
diff --git a/src/silx/gui/plot/test/testStats.py b/src/silx/gui/plot/test/test_stats.py
similarity index 100%
rename from src/silx/gui/plot/test/testStats.py
rename to src/silx/gui/plot/test/test_stats.py
diff --git a/src/silx/gui/plot/test/testUtilsAxis.py b/src/silx/gui/plot/test/test_utilsaxis.py
similarity index 100%
rename from src/silx/gui/plot/test/testUtilsAxis.py
rename to src/silx/gui/plot/test/test_utilsaxis.py
diff --git a/src/silx/gui/plot/tools/profile/editors.py b/src/silx/gui/plot/tools/profile/editors.py
index d53f7755e4..29388a57d8 100644
--- a/src/silx/gui/plot/tools/profile/editors.py
+++ b/src/silx/gui/plot/tools/profile/editors.py
@@ -249,7 +249,7 @@ def __setEditor(self, widget, editor):
         if previousEditor is not None:
             try:
                 previousEditor.sigDataCommited.disconnect(self._editorDataCommited)
-            except (RuntimeError, TypeError):
+            except (RuntimeError, TypeError, SystemError):
                 pass
             layout.removeWidget(previousEditor)
             previousEditor.deleteLater()
diff --git a/src/silx/gui/plot/tools/test/testCurveLegendsWidget.py b/src/silx/gui/plot/tools/test/test_curvelegendswidget.py
similarity index 100%
rename from src/silx/gui/plot/tools/test/testCurveLegendsWidget.py
rename to src/silx/gui/plot/tools/test/test_curvelegendswidget.py
diff --git a/src/silx/gui/plot/tools/test/testProfile.py b/src/silx/gui/plot/tools/test/test_profile.py
similarity index 97%
rename from src/silx/gui/plot/tools/test/testProfile.py
rename to src/silx/gui/plot/tools/test/test_profile.py
index 61b95a6433..50e95f147d 100644
--- a/src/silx/gui/plot/tools/test/testProfile.py
+++ b/src/silx/gui/plot/tools/test/test_profile.py
@@ -63,9 +63,10 @@ def defaultPlot(self):
             self.qWaitForWindowExposed(widget)
             yield widget
         finally:
+            widget.setAttribute(qt.Qt.WA_DeleteOnClose)
             widget.close()
-            widget = None
-            self.qWait()
+            del widget
+            self.qapp.processEvents()
 
     @contextlib.contextmanager
     def imagePlot(self):
@@ -77,9 +78,10 @@ def imagePlot(self):
             self.qWaitForWindowExposed(widget)
             yield widget
         finally:
+            widget.setAttribute(qt.Qt.WA_DeleteOnClose)
             widget.close()
-            widget = None
-            self.qWait()
+            del widget
+            self.qapp.processEvents()
 
     @contextlib.contextmanager
     def scatterPlot(self):
@@ -101,9 +103,10 @@ def scatterPlot(self):
             self.qWaitForWindowExposed(widget)
             yield widget.getPlotWidget()
         finally:
+            widget.setAttribute(qt.Qt.WA_DeleteOnClose)
             widget.close()
-            widget = None
-            self.qWait()
+            del widget
+            self.qapp.processEvents()
 
     @contextlib.contextmanager
     def stackPlot(self):
@@ -117,9 +120,10 @@ def stackPlot(self):
             self.qWaitForWindowExposed(widget)
             yield widget.getPlotWidget()
         finally:
+            widget.setAttribute(qt.Qt.WA_DeleteOnClose)
             widget.close()
-            widget = None
-            self.qWait()
+            del widget
+            self.qapp.processEvents()
 
     def waitPendingOperations(self, proflie):
         for _ in range(10):
diff --git a/src/silx/gui/plot/tools/test/testRoiCore.py b/src/silx/gui/plot/tools/test/test_roicore.py
similarity index 100%
rename from src/silx/gui/plot/tools/test/testRoiCore.py
rename to src/silx/gui/plot/tools/test/test_roicore.py
diff --git a/src/silx/gui/plot/tools/test/testRoiItems.py b/src/silx/gui/plot/tools/test/test_roiitems.py
similarity index 100%
rename from src/silx/gui/plot/tools/test/testRoiItems.py
rename to src/silx/gui/plot/tools/test/test_roiitems.py
diff --git a/src/silx/gui/plot/tools/test/testScatterProfileToolBar.py b/src/silx/gui/plot/tools/test/test_scatterprofiletoolbar.py
similarity index 100%
rename from src/silx/gui/plot/tools/test/testScatterProfileToolBar.py
rename to src/silx/gui/plot/tools/test/test_scatterprofiletoolbar.py
diff --git a/src/silx/gui/plot/tools/test/testTools.py b/src/silx/gui/plot/tools/test/test_tools.py
similarity index 100%
rename from src/silx/gui/plot/tools/test/testTools.py
rename to src/silx/gui/plot/tools/test/test_tools.py
diff --git a/src/silx/gui/plot3d/SFViewParamTree.py b/src/silx/gui/plot3d/SFViewParamTree.py
index 6eea5aeef1..f83fb3c89e 100644
--- a/src/silx/gui/plot3d/SFViewParamTree.py
+++ b/src/silx/gui/plot3d/SFViewParamTree.py
@@ -159,7 +159,7 @@ def _disconnectSignals(self):
             for signal, slot in self.__slots:
                 try:
                     signal.disconnect(slot)
-                except TypeError:
+                except (RuntimeError, TypeError, SystemError):
                     pass
 
     def _enableRow(self, enable):
@@ -1692,7 +1692,7 @@ def setModel(self, model):
             self.__openPersistentEditors(qt.QModelIndex(), False)
             try:
                 prevModel.rowsRemoved.disconnect(self.rowsRemoved)
-            except TypeError:
+            except (RuntimeError, TypeError, SystemError):
                 pass
 
         super(TreeView, self).setModel(model)
diff --git a/src/silx/gui/plot3d/test/testGL.py b/src/silx/gui/plot3d/test/test_gl.py
similarity index 100%
rename from src/silx/gui/plot3d/test/testGL.py
rename to src/silx/gui/plot3d/test/test_gl.py
diff --git a/src/silx/gui/plot3d/test/testScalarFieldView.py b/src/silx/gui/plot3d/test/test_scalarfieldview.py
similarity index 100%
rename from src/silx/gui/plot3d/test/testScalarFieldView.py
rename to src/silx/gui/plot3d/test/test_scalarfieldview.py
diff --git a/src/silx/gui/plot3d/test/testSceneWidget.py b/src/silx/gui/plot3d/test/test_scenewidget.py
similarity index 100%
rename from src/silx/gui/plot3d/test/testSceneWidget.py
rename to src/silx/gui/plot3d/test/test_scenewidget.py
diff --git a/src/silx/gui/plot3d/test/testSceneWidgetPicking.py b/src/silx/gui/plot3d/test/test_scenewidgetpicking.py
similarity index 100%
rename from src/silx/gui/plot3d/test/testSceneWidgetPicking.py
rename to src/silx/gui/plot3d/test/test_scenewidgetpicking.py
diff --git a/src/silx/gui/plot3d/test/testSceneWindow.py b/src/silx/gui/plot3d/test/test_scenewindow.py
similarity index 100%
rename from src/silx/gui/plot3d/test/testSceneWindow.py
rename to src/silx/gui/plot3d/test/test_scenewindow.py
diff --git a/src/silx/gui/plot3d/test/testStatsWidget.py b/src/silx/gui/plot3d/test/test_statswidget.py
similarity index 100%
rename from src/silx/gui/plot3d/test/testStatsWidget.py
rename to src/silx/gui/plot3d/test/test_statswidget.py
diff --git a/src/silx/gui/plot3d/tools/test/testPositionInfoWidget.py b/src/silx/gui/plot3d/tools/test/test_positioninfowidget.py
similarity index 100%
rename from src/silx/gui/plot3d/tools/test/testPositionInfoWidget.py
rename to src/silx/gui/plot3d/tools/test/test_positioninfowidget.py
diff --git a/src/silx/gui/utils/test/test.py b/src/silx/gui/utils/test/test_blocksignals.py
similarity index 100%
rename from src/silx/gui/utils/test/test.py
rename to src/silx/gui/utils/test/test_blocksignals.py
diff --git a/src/silx/gui/utils/testutils.py b/src/silx/gui/utils/testutils.py
index 76d0b9b4ad..f97e0fab7b 100644
--- a/src/silx/gui/utils/testutils.py
+++ b/src/silx/gui/utils/testutils.py
@@ -323,17 +323,7 @@ def qWait(cls, ms=None):
         """
         if ms is None:
             ms = cls.DEFAULT_TIMEOUT_WAIT
-
-        if qt.BINDING == "PySide6":
-            # PySide has no qWait, provide a replacement
-            timeout = int(ms)
-            endTimeMS = int(time.time() * 1000) + timeout
-            qapp = qt.QApplication.instance()
-            while timeout > 0:
-                qapp.processEvents(qt.QEventLoop.AllEvents, timeout)
-                timeout = endTimeMS - int(time.time() * 1000)
-        else:
-            QTest.qWait(int(ms) + cls.TIMEOUT_WAIT)
+        QTest.qWait(int(ms) + cls.TIMEOUT_WAIT)
 
     def qWaitForWindowExposed(self, window, timeout=None):
         """Waits until the window is shown in the screen.
diff --git a/src/silx/io/commonh5.py b/src/silx/io/commonh5.py
index f04fe8d494..b0d44400a9 100644
--- a/src/silx/io/commonh5.py
+++ b/src/silx/io/commonh5.py
@@ -31,6 +31,8 @@
 import numpy
 
 from . import utils
+from .._utils import NP_OPTIONAL_COPY
+
 
 __authors__ = ["V. Valls", "P. Knobel"]
 __license__ = "MIT"
@@ -347,12 +349,16 @@ def external(self):
         :rtype: list or None"""
         return None
 
-    def __array__(self, dtype=None):
+    def __array__(self, dtype=None, copy=None):
         # Special case for (0,)*-shape datasets
         if numpy.prod(self.shape) == 0:
             return self[()]
         else:
-            return numpy.array(self[...], dtype=self.dtype if dtype is None else dtype)
+            return numpy.array(
+                self[...],
+                dtype=self.dtype if dtype is None else dtype,
+                copy=NP_OPTIONAL_COPY if copy is None else copy,
+            )
 
     def __iter__(self):
         """Iterate over the first axis. TypeError if scalar."""
diff --git a/src/silx/io/test/test_h5py_utils.py b/src/silx/io/test/test_h5py_utils.py
index 0d10a785a3..276814d6bb 100644
--- a/src/silx/io/test/test_h5py_utils.py
+++ b/src/silx/io/test/test_h5py_utils.py
@@ -1,5 +1,5 @@
 # /*##########################################################################
-# Copyright (C) 2016-2017 European Synchrotron Radiation Facility
+# Copyright (C) 2016-2024 European Synchrotron Radiation Facility
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -76,10 +76,16 @@ def _subprocess_context(contextmgr, *args, **kw):
 def _open_context(filename, **kw):
     try:
         print(os.getpid(), "OPEN", filename, kw)
+        swmr_writer = kw.get("mode", "r") != "r" and kw.get("swmr", False)
+        if swmr_writer:
+            kw.pop("swmr")  # Avoid a warning
         with h5py_utils.File(filename, **kw) as f:
             if kw.get("mode") == "w":
                 f["check"] = True
                 f.flush()
+            if swmr_writer:
+                f.swmr_mode = True  # SWMR mode must be enabled afterwards
+                f.flush()
             yield f
     except Exception:
         print(" ", os.getpid(), "FAILED", filename, kw)
diff --git a/src/silx/test/__init__.py b/src/silx/test/__init__.py
index 0f3d5ded04..98faae32b2 100644
--- a/src/silx/test/__init__.py
+++ b/src/silx/test/__init__.py
@@ -24,6 +24,10 @@
 """This package provides test of the root modules
 """
 
+from __future__ import annotations
+
+from collections.abc import Sequence
+import importlib
 import logging
 import subprocess
 import sys
@@ -38,26 +42,43 @@
     raise
 
 
-def run_tests(module: str = "silx", verbosity: int = 0, args=()):
+import silx
+
+
+def run_tests(
+    module: str | None = "silx",
+    verbosity: int = 0,
+    args: Sequence[str] = (),
+):
     """Run tests in a subprocess
 
     :param module: Name of the silx module to test (default: 'silx')
     :param verbosity: Requested level of verbosity
     :param args: List of extra arguments to pass to `pytest`
     """
-    return subprocess.run(
-        [
-            sys.executable,
-            "-m",
-            "pytest",
-            "--pyargs",
-            module,
-            "--verbosity",
-            str(verbosity),
-            '-o python_files=["test/test*.py","test/Test*.py"]',
-            '-o python_classes=["Test"]',
-            '-o python_functions=["test"]',
-        ]
-        + list(args),
-        check=False,
-    ).returncode
+    cmd = [
+        sys.executable,
+        "-m",
+        "pytest",
+        f"--rootdir={silx.__path__[0]}",
+        "--verbosity",
+        str(verbosity),
+        # Handle warning as errors unless explicitly skipped
+        "-Werror",
+        "-Wignore:tostring() is deprecated. Use tobytes() instead.:DeprecationWarning:OpenGL.GL.VERSION.GL_2_0",
+        "-Wignore:Jupyter is migrating its paths to use standard platformdirs:DeprecationWarning",
+        "-Wignore:Unable to import recommended hash 'siphash24.siphash13', falling back to 'hashlib.sha256'. Run 'python3 -m pip install siphash24' to install the recommended hash.:UserWarning:pytools.persistent_dict",
+        # Remove __array__ ignore once h5py v3.12 is released
+        "-Wignore:__array__ implementation doesn't accept a copy keyword, so passing copy=False failed. __array__ must implement 'dtype' and 'copy' keyword arguments.:DeprecationWarning",
+    ] + list(args)
+
+    if module is not None:
+        # Retrieve folder for packages and file for modules
+        imported_module = importlib.import_module(module)
+        cmd.append(
+            imported_module.__path__[0]
+            if hasattr(imported_module, "__path__")
+            else imported_module.__file__
+        )
+
+    return subprocess.run(cmd, check=False).returncode
diff --git a/src/silx/utils/array_like.py b/src/silx/utils/array_like.py
index b9b976bca8..cb303bae4e 100644
--- a/src/silx/utils/array_like.py
+++ b/src/silx/utils/array_like.py
@@ -1,6 +1,6 @@
 # /*##########################################################################
 #
-# Copyright (c) 2016-2021 European Synchrotron Radiation Facility
+# Copyright (c) 2016-2024 European Synchrotron Radiation Facility
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -49,6 +49,9 @@
 import numpy
 import numbers
 
+from .._utils import NP_OPTIONAL_COPY
+
+
 __authors__ = ["P. Knobel"]
 __license__ = "MIT"
 __date__ = "26/04/2017"
@@ -276,13 +279,17 @@ def __sort_indices(self, indices):
         )
         return sorted_indices
 
-    def __array__(self, dtype=None):
+    def __array__(self, dtype=None, copy=None):
         """Cast the images into a numpy array, and return it.
 
         If a transposition has been done on this images, return
         a transposed view of a numpy array."""
         return numpy.transpose(
-            numpy.array(self.images, dtype=dtype), self.transposition
+            numpy.array(
+                self.images,
+                dtype=dtype,
+                copy=NP_OPTIONAL_COPY if copy is None else copy),
+            self.transposition,
         )
 
     def __len__(self):
@@ -543,13 +550,17 @@ def __getitem__(self, item):
 
         return numpy.transpose(output_data_not_transposed, axes=output_dimensions)
 
-    def __array__(self, dtype=None):
+    def __array__(self, dtype=None, copy=None):
         """Cast the dataset into a numpy array, and return it.
 
         If a transposition has been done on this dataset, return
         a transposed view of a numpy array."""
         return numpy.transpose(
-            numpy.array(self.dataset, dtype=dtype), self.transposition
+            numpy.array(
+                self.dataset,
+                dtype=dtype,
+                copy=NP_OPTIONAL_COPY if copy is None else copy),
+            self.transposition,
         )
 
     def __len__(self):