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102 lines
4.4 KiB
102 lines
4.4 KiB
# -*- Python -*-
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import os
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import platform
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import sys
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import lit.formats
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from lit.llvm import llvm_config
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# Configuration file for the 'lit' test runner.
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# name: The name of this test suite.
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config.name = 'lit'
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# testFormat: The test format to use to interpret tests.
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config.test_format = lit.formats.ShTest(execute_external=False)
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# suffixes: A list of file extensions to treat as test files.
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config.suffixes = ['.py']
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# excludes: A list of individual files to exclude.
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config.excludes = ['Inputs']
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# test_source_root: The root path where tests are located.
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config.test_source_root = os.path.dirname(__file__)
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config.test_exec_root = config.test_source_root
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config.target_triple = '(unused)'
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llvm_src_root = getattr(config, 'llvm_src_root', None)
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if llvm_src_root:
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# ``test_source_root`` may be in LLVM's binary build directory which does not contain
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# ``lit.py``, so use `llvm_src_root` instead.
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lit_path = os.path.join(llvm_src_root, 'utils', 'lit')
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else:
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lit_path = os.path.join(config.test_source_root, '..')
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# Required because some tests import the lit module
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if llvm_config:
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llvm_config.with_environment('PYTHONPATH', lit_path, append_path=True)
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else:
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config.environment['PYTHONPATH'] = os.pathsep.join([lit_path])
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# Do not add user-site packages directory to the python search path. This avoids test failures if there's an
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# incompatible lit module installed inside the user-site packages directory, as it gets prioritized over the lit
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# from the PYTHONPATH.
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config.environment['PYTHONNOUSERSITE'] = '1'
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# Add llvm and lit tools directories if this config is being loaded indirectly.
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# In this case, we can also expect llvm_config to have been imported correctly.
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for attribute in ('llvm_tools_dir', 'lit_tools_dir'):
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directory = getattr(config, attribute, None)
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if directory:
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llvm_config.with_environment('PATH', directory, append_path=True)
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# This test suite calls %{lit} to test lit's behavior for the sample test
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# suites in %{inputs}. This test suite's results are then determined in part
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# by %{lit}'s textual output, which includes the output of FileCheck calls
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# within %{inputs}'s test suites. Thus, %{lit} clears environment variables
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# that can affect FileCheck's output.
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config.substitutions.append(('%{inputs}', os.path.join(
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config.test_source_root, 'Inputs')))
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config.substitutions.append(('%{lit}',
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"{env} %{{python}} {lit}".format(
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env="env -u FILECHECK_OPTS",
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lit=os.path.join(lit_path, 'lit.py'))))
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config.substitutions.append(('%{python}', '"%s"' % (sys.executable)))
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# Enable coverage.py reporting, assuming the coverage module has been installed
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# and sitecustomize.py in the virtualenv has been modified appropriately.
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if lit_config.params.get('check-coverage', None):
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config.environment['COVERAGE_PROCESS_START'] = os.path.join(
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os.path.dirname(__file__), ".coveragerc")
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# Add a feature to detect if psutil is available
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supported, errormsg = lit_config.maxIndividualTestTimeIsSupported
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if supported:
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config.available_features.add("lit-max-individual-test-time")
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else:
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lit_config.warning('Setting a timeout per test not supported. ' + errormsg
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+ ' Some tests will be skipped and the --timeout'
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' command line argument will not work.')
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# When running the lit tests standalone, we want to define the same features
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# that the llvm_config defines. This means that the 'system-windows' feature
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# (and any others) need to match the names in llvm_config for consistency
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if not llvm_config:
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if sys.platform.startswith('win') or sys.platform.startswith('cygwin'):
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config.available_features.add('system-windows')
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if platform.system() == 'AIX':
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config.available_features.add('system-aix')
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# For each of lit's internal shell commands ('env', 'cd', 'diff', etc.), put
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# a fake command that always fails at the start of PATH. This helps us check
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# that we always use lit's internal version rather than some external version
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# that might not be present or behave correctly on all platforms. Don't do
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# this for 'echo' because an external version is used when it appears in a
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# pipeline. Don't do this for ':' because it doesn't appear to be a valid file
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# name under Windows.
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test_bin = os.path.join(os.path.dirname(__file__), 'Inputs', 'fake-externals')
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config.environment['PATH'] = os.path.pathsep.join((test_bin,
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config.environment['PATH']))
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