76 lines
2.7 KiB
Python
76 lines
2.7 KiB
Python
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"""Identity AST transform test cases"""
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import os.path
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from mypy import build
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from mypy.modulefinder import BuildSource
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from mypy.test.helpers import (
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assert_string_arrays_equal, normalize_error_messages, parse_options
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)
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from mypy.test.data import DataDrivenTestCase, DataSuite
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from mypy.test.config import test_temp_dir
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from mypy.test.visitors import TypeAssertTransformVisitor
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from mypy.errors import CompileError
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class TransformSuite(DataSuite):
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required_out_section = True
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# Reuse semantic analysis test cases.
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files = ['semanal-basic.test',
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'semanal-expressions.test',
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'semanal-classes.test',
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'semanal-types.test',
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'semanal-modules.test',
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'semanal-statements.test',
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'semanal-abstractclasses.test',
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'semanal-python2.test']
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native_sep = True
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def run_case(self, testcase: DataDrivenTestCase) -> None:
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test_transform(testcase)
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def test_transform(testcase: DataDrivenTestCase) -> None:
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"""Perform an identity transform test case."""
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try:
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src = '\n'.join(testcase.input)
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options = parse_options(src, testcase, 1)
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options.use_builtins_fixtures = True
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options.semantic_analysis_only = True
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options.enable_incomplete_features = True
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options.show_traceback = True
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result = build.build(sources=[BuildSource('main', None, src)],
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options=options,
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alt_lib_path=test_temp_dir)
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a = result.errors
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if a:
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raise CompileError(a)
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# Include string representations of the source files in the actual
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# output.
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for fnam in sorted(result.files.keys()):
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f = result.files[fnam]
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# Omit the builtins module and files with a special marker in the
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# path.
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# TODO the test is not reliable
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if (not f.path.endswith((os.sep + 'builtins.pyi',
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'typing_extensions.pyi',
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'typing.pyi',
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'abc.pyi',
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'sys.pyi'))
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and not os.path.basename(f.path).startswith('_')
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and not os.path.splitext(
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os.path.basename(f.path))[0].endswith('_')):
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t = TypeAssertTransformVisitor()
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t.test_only = True
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f = t.mypyfile(f)
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a += str(f).split('\n')
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except CompileError as e:
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a = e.messages
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if testcase.normalize_output:
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a = normalize_error_messages(a)
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assert_string_arrays_equal(
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testcase.output, a,
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f'Invalid semantic analyzer output ({testcase.file}, line {testcase.line})')
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