Update tox.ini

Bring in tox.ini from `Microsoft/recommenders` repo

tox.ini

@@ -1,130 +1,102 @@
 [tox]
-envlist = py37-{black,mypy,flake8,bandit,pylint,unit,integration}
+# py will use whatever the basepython `python` maps to from PATH
+# you can use py38, for example, to chosse a different version
+# See https://tox.readthedocs.io/en/latest/config.html#tox-environments
+envlist = py, cpu, gpu, spark, all
 
+
+# Default env settings
 [testenv]
-deps =
-    -r{toxinidir}/scripts/build/requirements/piptools.in
-    -r{toxinidir}/scripts/build/requirements/test.in
-    -rrequirements.txt
+# similar to 'pip install <PAKCGE_NAME>-*.whl[all]'
+extras = all
+commands = 
+    # {posargs} will be substituded by arguments after the `--` when running.
+    # This will allow running subset of the test suite via tox. 
+    #
+    # EX: tox -- -m "not spark and not gpu" 
+    #     will pass {-m "not spark and not gpu"} to `pytest`
+    # See https://tox.readthedocs.io/en/latest/example/general.html for more details
+    pytest {posargs}
 
-depends =
-    py37-{mypy,flake8,bandit,pylint,unit,integration}: py37-black
+[testenv:cpu]
+# i.e: 'pip install <PAKCGE_NAME>-*.whl[dev,examples]'
+# with this dependency subset, we should be able to run the test markers:
+# 1. "not notebooks and not spark and not gpu" (tests for general sdk utilities)
+# 2. "notebooks and not spark and not gpu" (tests for notebook example without extra dependencies)
+extras = dev,examples
 
-[testenv:py37-black]
-skip_install = true
-deps = black
-commands = black \
-              --config "black.toml" \
-              "azureiai" \
-              "tests"
+[testenv:gpu]
+# i.e: 'pip install <PAKCGE_NAME>-*.whl[dev,gpu,examples]'
+# with this dependency subset, we should be able to run the test markers:
+# 1. "gpu and not notebook and not spark" (tests for gpu utilities)
+# 2. "gpu and notebooks and not spark" (tests for notebooks needing gpu resources)
+extras = dev,gpu,examples
 
-[testenv:py37-mypy]
-skip_install = true
-deps = mypy
-commands =
-    mypy \
-       --config-file "tox.ini" \
-       "azureiai"
+[testenv:spark]
+# i.e: 'pip install <PAKCGE_NAME>-*.whl[dev,spark,examples]'
+# with this dependency subset, we should be able to run the test markers:
+# 1. "spark and not notebook and not spark" (test for spark utilities)
+# 2. "spark and notebooks and not spark" (tests for notebook using spark)
+extras = dev,spark,examples
+# We will need to redefine the following envrionment var in tox
+setenv =
+       PYSPARK_DRIVER_PYTHON = {envpython}
+       PYSPARK_PYTHON = {envpython}
 
-[testenv:py37-flake8]
-skip_install = true
-deps = flake8
-commands =
-    flake8 \
-       --config "tox.ini" \
-       "azureiai"
+[testenv:all]
+# i.e: 'pip install <PAKCGE_NAME>-*.whl[all]'
+# with this, we should be able to run ANY tests
+extras = all
 
-[testenv:py37-bandit]
-skip_install = true
-deps = bandit
-commands = bandit -r --ini "tox.ini"
+[testenv:flake8]
+deps = flake8
+skip_install = True
+commands = flake8 .
 
-[testenv:py37-pylint]
-deps =
-    pylint
-    pylint-junit
-commands =
-    pylint \
-       --enable=locally-disabled \
-       --rcfile ".pylintrc" \
-       "azureiai"
 
-[testenv:py37-safety]
-skip_install = true
-deps = safety
-commands = safety check --full-report
+# Configurations for running pytest
+[pytest]
+log_cli = False
+log_format = %(asctime)s %(levelname)s %(message)s
+junit_family = xunit2
+# This enable custom marker as decorator "@pytest.mark.gpu"
+markers = 
+    # markers allow to us to run faster subset of the test:
+    # EX: pytest -m "not spark and not gpu"
+    # See https://docs.pytest.org/en/stable/example/markers.html#registering-markers
+    notebooks: mark a test as notebooks test
+    gpu: mark a test as gpu test
+    spark: mark a test as spark test
+testpaths =
+    tests
+addopts =
+    # reports all (except passed tests). See https://docs.pytest.org/en/latest/usage.html#detailed-summary-report
+    # TODO: please don't forget to replace <PACKAGE_NAME> with your python package name
+    -ra
+    --durations 10
+    --cov-append --cov=<PACKAGE_NAME> --cov-report=term --cov-report=xml --junitxml=junit/test-results.xml
 
-[testenv:py37-unit]
-deps =
-    pytest
-    coverage
-    pytest-cov
-commands =
-    coverage erase
-    python3 -m pytest \
-       -c "tox.ini" \
-       -m "not integration and not gpu" \
-       --cov-append \
-       --cov-config ".coveragerc" \
-       --cov azureiai \
-       "tests"
-    coverage \
-       report \
-       --fail-under 80 \
-       --include "azureiai/*" \
-       --omit "azureiai/__init__.py"
 
-[testenv:py37-integration]
-deps =
-    pytest
-    pytest-parallel
-commands =
-    python -m pytest \
-       -c "tox.ini" \
-       -m "integration" \
-       --workers "auto" \
-       --tests-per-worker "auto" \
-       "tests"
+[coverage:report]
+skip_empty = true
+skip_covered = true
 
-[bandit]
-exclude = build,dist,tests,scripts
-number: 4
-recursive: True
-skips = B110,B311,B314,B404,B405,B406
-targets = azureiai
 
 [flake8]
-max-line-length = 120
-select = F,E,W,B,B901,B902,B903
-exclude =
-    .eggs,
-    .git,
-    .tox,
-    nssm,
-    obj,
-    out,
-    packages,
-    pywin32,
-    tests,
-    swagger_client
-ignore = E722,B001,W503,E203
-
-[pytest]
-junit_family = xunit2
-markers =
-    integration: marks as integration test
-    notebooks: marks as notebook test
-    gpu: marks as gpu test
-    smoke: marks as smoke test
-    spark: marks tests which need Spark
-    cdm: marks tests which need cdm
-    slow: marks tests as slow
-    unit: fast offline tests
+ignore =
+    # Lint rules to ignore
+    # W503  # line break before binary operator
+    # E203  # whitespace before ':'
 
-[mypy]
-python_version = 3.7
-ignore_missing_imports = True
-strict_optional = False
-follow_imports = silent
-no_site_packages = True
+# File-specific flake8 ignore rules
+per-file-ignores =
+    # F403 'from X import *' 
+    # F405 'X' may be undefined, or defined from star imports
+    # src/path/to/file/*.py:F403,F405
 
+max-line-length = 180
+exclude = 
+    build, dist, docs, examples,
+    tests
+    .env*,.venv* # local virtual environments
+    .tox