90 lines
2.3 KiB
Python
90 lines
2.3 KiB
Python
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"""Utility code for facilitating collection of code coverage when running tests."""
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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import contextlib
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import os
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import tempfile
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from lib.config import (
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IntegrationConfig,
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SanityConfig,
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TestConfig,
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)
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from lib.util import (
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COVERAGE_CONFIG_PATH,
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remove_tree,
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)
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from lib.data import (
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data_context,
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)
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@contextlib.contextmanager
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def coverage_context(args): # type: (TestConfig) -> None
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"""Content to set up and clean up code coverage configuration for tests."""
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coverage_setup(args)
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try:
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yield
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finally:
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coverage_cleanup(args)
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def coverage_setup(args): # type: (TestConfig) -> None
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"""Set up code coverage configuration before running tests."""
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if args.coverage and data_context().content.collection:
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coverage_config = generate_collection_coverage_config(args)
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if args.explain:
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args.coverage_config_base_path = '/tmp/coverage-temp-dir'
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else:
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args.coverage_config_base_path = tempfile.mkdtemp()
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with open(os.path.join(args.coverage_config_base_path, COVERAGE_CONFIG_PATH), 'w') as coverage_config_path_fd:
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coverage_config_path_fd.write(coverage_config)
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def coverage_cleanup(args): # type: (TestConfig) -> None
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"""Clean up code coverage configuration after tests have finished."""
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if args.coverage_config_base_path and not args.explain:
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remove_tree(args.coverage_config_base_path)
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args.coverage_config_base_path = None
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def generate_collection_coverage_config(args): # type: (TestConfig) -> str
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"""Generate code coverage configuration for tests."""
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coverage_config = '''
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[run]
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branch = True
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concurrency = multiprocessing
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parallel = True
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disable_warnings =
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no-data-collected
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'''
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if isinstance(args, IntegrationConfig):
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coverage_config += '''
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include =
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%s/*
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*/%s/*
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''' % (data_context().content.root, data_context().content.collection.directory)
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elif isinstance(args, SanityConfig):
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# temporary work-around for import sanity test
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coverage_config += '''
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include =
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%s/*
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omit =
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*/test/runner/.tox/*
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''' % data_context().content.root
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else:
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coverage_config += '''
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include =
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%s/*
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''' % data_context().content.root
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return coverage_config
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