Nose to pytest (#1239)

* lint: updating code style with `make black`

* adding pytest related package

with

```
pipenv install --dev pytest
pipenv install --dev pytest-cov
```

* wsgi: fixing DeprecationWarning

when running tests there was this warning:

```
DeprecationWarning: 'werkzeug.urls.url_unquote' is deprecated and will be
removed in Werkzeug 2.4. Use 'urllib.parse.unquote' instead.
```

* tests: using `redirect_stdout` to redirect stdout to a readable source

* tests_utilities: fixing deprecation warning

```
DeprecationWarning: Please use assertRegex instead of assertRegexpMatches
```

* tests_utilities: removing try/finally in test_certify_sanity_checks

* tests_placebo: : fixing deprecation warning

```
DeprecationWarning: Please use assertRaisesRegex instead of assertRaisesRegexp
```

* zappa(core): fixing deprecation warning

```
DeprecationWarning: The 'warn' method is deprecated, use 'warning' instead
```

* tests_docs: fixing deprecation warning

```
DeprecationWarning: Please use assertEqual instead of assertEquals
```

* tests: moving from nose to pytest

keeping coverage results (aggregated) and duration display

* tests: removing and uninstalling all nose references

.gitignore

@@ -46,7 +46,6 @@ htmlcov/
 .coveragerc
 .coverage.*
 .cache
-nosetests.xml
 coverage.xml
 *,cover
 .hypothesis/

Makefile

@@ -24,7 +24,7 @@ clean:
 	find . -name '*.pyc' -exec rm -f {} +
 	find . -name '*.pyo' -exec rm -f {} +
 	rm -rf .mypy_cache dist build *.egg-info
-	rm -f .coverage
+	coverage erase
 
 requirements:
 	pip install pipenv>2021.11.15
@@ -56,24 +56,39 @@ flake:
 	flake8 zappa --count --exit-zero --max-complexity=55 --max-line-length=127 --statistics --ignore F403,F405,E203,E231,E252,W503
 
 test-docs:
-	nosetests tests/tests_docs.py --with-coverage --cover-package=zappa --with-timer
+	pytest tests/tests_docs.py --cov=zappa --durations=0
 
 test-handler:
-	nosetests tests/test_handler.py --with-coverage --cover-package=zappa --with-timer
+	pytest tests/test_handler.py --cov=zappa --durations=0
 
 test-middleware:
-	nosetests tests/tests_middleware.py --with-coverage --cover-package=zappa --with-timer
+	pytest tests/tests_middleware.py --cov=zappa --durations=0
 
 test-placebo:
-	nosetests tests/tests_placebo.py --with-coverage --cover-package=zappa --with-timer
+	pytest tests/tests_placebo.py --cov=zappa --durations=0
 
 test-async:
-	nosetests tests/tests_async.py --with-coverage --cover-package=zappa --with-timer
+	pytest tests/tests_async.py --cov=zappa --durations=0
 
 test-general:
-	nosetests tests/tests.py --with-coverage --cover-package=zappa --with-timer
+	pytest tests/tests.py --cov=zappa --durations=0
 
 test-utilities:
-	nosetests tests/tests_utilities.py --with-coverage --cover-package=zappa --with-timer
+	pytest tests/tests_utilities.py --cov=zappa --durations=0
+
+coverage-report:
+	coverage report --include="*/zappa*"
+
+tests:
+	make clean
+	pytest \
+		tests/tests_docs.py \
+		tests/test_handler.py \
+		tests/tests_middleware.py \
+		tests/tests_placebo.py \
+		tests/tests_async.py \
+		tests/tests.py \
+		tests/tests_utilities.py \
+		--cov=zappa
+		--durations=0
 
-tests: clean test-docs test-handler test-middleware test-placebo test-async test-general test-utilities

Pipfile

@@ -14,10 +14,10 @@ Flask = "*"
 isort = "*"
 mock = "*"
 mypy = "*"
-nose = "*"
-nose-timer = "*"
 pipenv = ">2021.11.15"
 packaging = "*"
+pytest = "*"
+pytest-cov = "*"
 
 [packages]
 argcomplete = "*"

setup.py

@@ -25,7 +25,6 @@
     install_requires=required,
     python_requires=">=3.7",
     tests_require=test_required,
-    test_suite="nose.collector",
     include_package_data=True,
     license="MIT License",
     description="Server-less Python Web Services for AWS Lambda and API Gateway",

test.sh

@@ -1,5 +1,5 @@
 #! /bin/bash
-nosetests --with-coverage --cover-package=zappa
+pytest --cov=zappa
 
 # For a specific test:
-# nosetests tests.tests:TestZappa.test_lets_encrypt_sanity -s
+# pytest tests/tests.py::TestZappa::test_lets_encrypt_sanity