Migrate test calls from nosetests to pytest.

Signed-off-by: Daniel Scheffler <danschef@gfz-potsdam.de>

.coveragerc

+# .coveragerc to control coverage.py
+[run]
+branch = False
+concurrency = multiprocessing
+parallel = True
+
+[report]
+show_missing = True
+
+# Regexes for lines to exclude from consideration
+exclude_lines =
+    # Have to re-enable the standard pragma
+    pragma: no cover
+
+    # Don't complain if tests don't hit defensive assertion code:
+    raise AssertionError
+    raise NotImplementedError
+
+    # Don't complain if non-runnable code isn't run:
+    if 0:
+    if __name__ == .__main__.:
+
+ignore_errors = True
+
+[html]
+directory = htmlcov

.gitlab-ci.yml

@@ -12,20 +12,27 @@ test_sensormapgeo:
   script:
     - source /root/mambaforge/bin/activate ci_env
 
-    - pip install 'pyresample<1.17.0'  # https://github.com/pytroll/pyresample/issues/325
+    - pip install pytest pytest-cov pytest-reporter-html1
 
-    # run nosetests
-    - make nosetests
+    # run tests
+    - make pytest
+
+    # run tests
+    - make tests
 
     # create the docs
     - make docs
 
   artifacts:
+    expose_as: 'Test and coverage report'
     paths:
     - htmlcov/
+    - report.html
     - docs/_build/html/
-    - nosetests.html
-    - nosetests.xml
+    reports:
+      cobertura: coverage.xml
+      junit: report.xml
+    expire_in: 30 days
     when: always
 
 
@@ -84,7 +91,7 @@ pages:  # this job must be called 'pages' to advise GitLab to upload content to
     - mkdir public
     - mkdir -p public/doc
     - mkdir -p public/coverage
-    - mkdir -p public/nosetests_reports
+    - mkdir -p public/tests_reports
 
     # Copy over the docs
     - cp -r docs/_build/html/* public/doc/
@@ -92,14 +99,14 @@ pages:  # this job must be called 'pages' to advise GitLab to upload content to
     # Copy over the coverage reports
     - cp -r htmlcov/* public/coverage/
 
-    # Copy over the nosetests reports
-    - cp nosetests.* public/nosetests_reports/
+    # Copy over the tests reports
+    - cp report.html public/tests_reports/
 
     # Check if everything is working great
     - ls -al public
     - ls -al public/doc
     - ls -al public/coverage
-    - ls -al public/nosetests_reports
+    - ls -al public/tests_reports
   artifacts:
     paths:
       - public

Makefile

-.PHONY: clean clean-test clean-pyc clean-build docs help
+.PHONY: clean clean-test clean-pyc clean-build docs help pytest
 .DEFAULT_GOAL := help
 
 define BROWSER_PYSCRIPT
@@ -48,8 +48,10 @@ clean-test: ## remove test and coverage artifacts
 	rm -f .coverage
 	rm -fr .coverage.*
 	rm -fr htmlcov/
-	rm -fr nosetests.html
-	rm -fr nosetests.xml
+	rm -fr report.html
+	rm -fr report.xml
+	rm -fr coverage.xml
+	rm -fr .pytest_cache
 
 lint: ## check style with flake8
 	flake8 --max-line-length=120 sensormapgeo tests > ./tests/linting/flake8.log || \
@@ -81,6 +83,24 @@ nosetests: clean-test ## Runs nosetests with coverage, xUnit and nose-html-outpu
 	nosetests -vv --with-coverage --cover-package=sensormapgeo --cover-erase --cover-html --cover-html-dir=htmlcov \
 		--with-html --with-xunit --rednose --force-color
 
+pytest: clean-test ## Runs pytest with coverage and creates coverage and test report
+	## - puts the coverage results in the folder 'htmlcov'
+	## - generates cobertura 'coverage.xml' (needed to show coverage in GitLab MR changes)
+	## - generates 'report.html' based on pytest-reporter-html1
+	## - generates JUnit 'report.xml' to show the test report as a new tab in a GitLab MR
+	## NOTE: additional options pytest and coverage (plugin pyteest-cov) are defined in .pytest.ini and .coveragerc
+	pytest tests \
+		--verbosity=3 \
+		--color=yes \
+		--tb=short \
+		--cov=sensormapgeo \
+		--cov-report html:htmlcov \
+    	--cov-report term-missing \
+    	--cov-report xml:coverage.xml \
+    	--template=html1/index.html --report=report.html \
+    	--junitxml report.xml
+
+
 docs: ## generate Sphinx HTML documentation, including API docs
 	rm -f docs/sensormapgeo.rst
 	rm -f docs/modules.rst

setup.py

@@ -43,12 +43,11 @@ requirements = ['numpy', 'gdal', 'pyresample>=1.11.0', 'py_tools_ds>=0.18.0', 'p
 
 setup_requirements = []
 
-test_requirements = ['coverage', 'nose', 'nose-htmloutput', 'rednose', 'urlchecker']
+test_requirements = ['pytest', 'pytest-cov', 'pytest-reporter-html1', 'urlchecker']
 
 setup(
     author="Daniel Scheffler",
     author_email='daniel.scheffler@gfz-potsdam.de',
-    python_requires='>=3.6',
     classifiers=[
         'Development Status :: 4 - Beta',
         'Intended Audience :: Developers',
@@ -58,6 +57,7 @@ setup(
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
+        'Programming Language :: Python :: 3.9'
     ],
     description="A package for transforming remote sensing images between sensor and map geometry.",
     install_requires=requirements,
@@ -67,6 +67,7 @@ setup(
     keywords='sensormapgeo',
     name='sensormapgeo',
     packages=find_packages(exclude=['tests*']),
+    python_requires='>=3.6',
     setup_requires=setup_requirements,
     test_suite='tests',
     tests_require=test_requirements,

tests/CI_docker/context/environment_sensormapgeo.yml

@@ -16,15 +16,13 @@ dependencies:
   - pip:
     - pebble
 
-    - coverage
     - flake8
-    - nose
-    - nose2
-    - nose-htmloutput
     - pycodestyle
     - pydocstyle
     - pylint
-    - rednose
+    - pytest
+    - pytest-cov
+    - pytest-reporter-html1
     - sphinx-argparse
     - sphinx-autodoc-typehints
     - sphinx_rtd_theme