Add fix and tests for issue #442

securedrop_client/gui/widgets.py

@@ -2424,6 +2424,8 @@ class ConversationView(QWidget):
     }
     '''
 
+    conversation_updated = pyqtSignal()
+
     MARGIN_LEFT = 38
     MARGIN_RIGHT = 20
 
@@ -2550,6 +2552,7 @@ def add_file(self, file: File, index):
             index)
         self.conversation_layout.insertWidget(index, conversation_item, alignment=Qt.AlignLeft)
         self.current_messages[file.uuid] = conversation_item
+        self.conversation_updated.emit()
 
     def update_conversation_position(self, min_val, max_val):
         """
@@ -2568,6 +2571,7 @@ def add_message(self, message: Message, index) -> None:
             message.uuid, str(message), self.controller.message_ready, index)
         self.conversation_layout.insertWidget(index, conversation_item, alignment=Qt.AlignLeft)
         self.current_messages[message.uuid] = conversation_item
+        self.conversation_updated.emit()
 
     def add_reply(self, reply: Union[DraftReply, Reply], index) -> None:
         """
@@ -2648,6 +2652,8 @@ def __init__(
 
         # Connect reply_box to conversation_view
         self.reply_box.reply_sent.connect(self.conversation_view.on_reply_sent)
+        self.conversation_view.conversation_updated.connect(
+            self.conversation_title_bar.update_timestamp)
 
 
 class ReplyBoxWidget(QWidget):
@@ -3027,11 +3033,11 @@ def __init__(self, source, controller):
         header_layout.setContentsMargins(
             self.MARGIN_LEFT, self.VERTICAL_MARGIN, self.MARGIN_RIGHT, self.VERTICAL_MARGIN)
         title = TitleLabel(self.source.journalist_designation)
-        updated = LastUpdatedLabel(_(arrow.get(self.source.last_updated).format('DD MMM')))
+        self.updated = LastUpdatedLabel(_(arrow.get(self.source.last_updated).format('DD MMM')))
         menu = SourceMenuButton(self.source, self.controller)
         header_layout.addWidget(title, alignment=Qt.AlignLeft)
         header_layout.addStretch()
-        header_layout.addWidget(updated, alignment=Qt.AlignRight)
+        header_layout.addWidget(self.updated, alignment=Qt.AlignRight)
         header_layout.addWidget(menu, alignment=Qt.AlignRight)
 
         # Create horizontal line
@@ -3042,3 +3048,10 @@ def __init__(self, source, controller):
         # Add widgets
         layout.addWidget(header)
         layout.addWidget(horizontal_line)
+
+    def update_timestamp(self):
+        """
+        Ensure the timestamp is always kept up to date with the latest activity
+        from the source.
+        """
+        self.updated.setText(_(arrow.get(self.source.last_updated).format('DD MMM')))

tests/gui/test_widgets.py

@@ -2,6 +2,8 @@
 Make sure the UI widgets are configured correctly and work as expected.
 """
 import pytest
+import arrow
+from datetime import datetime
 
 from PyQt5.QtCore import Qt, QEvent
 from PyQt5.QtGui import QFocusEvent, QMovie
@@ -16,7 +18,8 @@
     DeleteSourceMessageBox, DeleteSourceAction, SourceMenu, TopPane, LeftPane, SyncIcon, \
     ErrorStatusBar, ActivityStatusBar, UserProfile, UserButton, UserMenu, LoginButton, \
     ReplyBoxWidget, ReplyTextEdit, SourceConversationWrapper, StarToggleButton, LoginOfflineLink, \
-    LoginErrorBar, EmptyConversationView, ExportDialog, PrintDialog, PasswordEdit, SecureQLabel
+    LoginErrorBar, EmptyConversationView, ExportDialog, PrintDialog, PasswordEdit, SecureQLabel, \
+    SourceProfileShortWidget
 from tests import factory
 
 
@@ -2174,6 +2177,7 @@ def test_ConversationView_add_message(mocker, session, source):
 
     cv = ConversationView(source, mocked_controller)
     cv.conversation_layout = mocker.MagicMock()
+    cv.conversation_updated = mocker.MagicMock()
     # this is the MessageWidget that __init__() would return
     mock_msg_widget_res = mocker.MagicMock()
     # mock the actual MessageWidget so we can inspect the __init__ call
@@ -2189,6 +2193,10 @@ def test_ConversationView_add_message(mocker, session, source):
     cv.conversation_layout.insertWidget.assert_called_once_with(
         0, mock_msg_widget_res, alignment=Qt.AlignLeft)
 
+    # Check the signal is emitted to say the message has been added (and thus
+    # the timestamps need updating.
+    assert cv.conversation_updated.emit.call_count == 1
+
 
 def test_ConversationView_add_message_no_content(mocker, session, source):
     """
@@ -2383,6 +2391,7 @@ def test_ConversationView_add_downloaded_file(mocker, homedir, source, session):
 
     cv = ConversationView(source['source'], mocked_controller)
     cv.conversation_layout = mocker.MagicMock()
+    cv.conversation_updated = mocker.MagicMock()
 
     mock_label = mocker.patch('securedrop_client.gui.widgets.SecureQLabel')
     mocker.patch('securedrop_client.gui.widgets.QHBoxLayout.addWidget')
@@ -2392,6 +2401,7 @@ def test_ConversationView_add_downloaded_file(mocker, homedir, source, session):
 
     mock_label.assert_called_with('123B')  # default factory filesize
     assert cv.conversation_layout.insertWidget.call_count == 1
+    assert cv.conversation_updated.emit.call_count == 1
 
     cal = cv.conversation_layout.insertWidget.call_args_list
     assert isinstance(cal[0][0][1], FileWidget)
@@ -3214,3 +3224,19 @@ def test_clear_conversation_deletes_items(mocker, homedir):
     cv.clear_conversation()
 
     assert cv.conversation_layout.count() == 0
+
+
+def test_SourceProfileShortWidget_update_timestamp(mocker):
+    """
+    Ensure the update_timestamp slot actually updates the LastUpdatedLabel
+    instance with the last_updated value from the source..
+    """
+    mock_controller = mocker.MagicMock()
+    mock_source = mocker.MagicMock()
+    mock_source.last_updated = datetime.now()
+    mock_source.journalist_designation = "wimple horse knackered unittest"
+    spsw = SourceProfileShortWidget(mock_source, mock_controller)
+    spsw.updated = mocker.MagicMock()
+    spsw.update_timestamp()
+    spsw.updated.setText.assert_called_once_with(
+        arrow.get(mock_source.last_updated).format('DD MMM'))