97 lines
3.2 KiB
Python
97 lines
3.2 KiB
Python
# Copyright (c) 2011 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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# This file is meant to be included into an target to create a unittest that
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# invokes a set of no-compile tests. A no-compile test is a test that asserts
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# a particular construct will not compile.
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#
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# Also see:
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# http://dev.chromium.org/developers/testing/no-compile-tests
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#
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# To use this, create a gyp target with the following form:
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# {
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# 'target_name': 'my_module_nc_unittests',
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# 'type': 'executable',
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# 'sources': [
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# 'nc_testset_1.nc',
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# 'nc_testset_2.nc',
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# ],
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# 'includes': ['path/to/this/gypi/file'],
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# }
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#
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# The .nc files are C++ files that contain code we wish to assert will not
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# compile. Each individual test case in the file should be put in its own
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# #ifdef section. The expected output should be appended with a C++-style
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# comment that has a python list of regular expressions. This will likely
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# be greater than 80-characters. Giving a solid expected output test is
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# important so that random compile failures do not cause the test to pass.
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#
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# Example .nc file:
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#
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# #if defined(TEST_NEEDS_SEMICOLON) // [r"expected ',' or ';' at end of input"]
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#
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# int a = 1
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#
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# #elif defined(TEST_NEEDS_CAST) // [r"invalid conversion from 'void*' to 'char*'"]
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#
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# void* a = NULL;
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# char* b = a;
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#
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# #endif
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#
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# If we needed disable TEST_NEEDS_SEMICOLON, then change the define to:
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#
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# DISABLE_TEST_NEEDS_SEMICOLON
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# TEST_NEEDS_CAST
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#
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# The lines above are parsed by a regexp so avoid getting creative with the
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# formatting or ifdef logic; it will likely just not work.
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#
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# Implementation notes:
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# The .nc files are actually processed by a python script which executes the
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# compiler and generates a .cc file that is empty on success, or will have a
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# series of #error lines on failure, and a set of trivially passing gunit
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# TEST() functions on success. This allows us to fail at the compile step when
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# something goes wrong, and know during the unittest run that the test was at
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# least processed when things go right.
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{
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# TODO(awong): Disabled until http://crbug.com/105388 is resolved.
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'sources/': [['exclude', '\\.nc$']],
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'conditions': [
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[ 'OS=="linux" and clang==0', {
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'rules': [
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{
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'variables': {
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'nocompile_driver': '<(DEPTH)/tools/nocompile_driver.py',
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'nc_result_path': ('<(INTERMEDIATE_DIR)/<(module_dir)/'
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'<(RULE_INPUT_ROOT)_nc.cc'),
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},
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'rule_name': 'run_nocompile',
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'extension': 'nc',
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'inputs': [
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'<(nocompile_driver)',
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],
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'outputs': [
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'<(nc_result_path)'
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],
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'action': [
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'python',
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'<(nocompile_driver)',
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'4', # number of compilers to invoke in parallel.
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'<(RULE_INPUT_PATH)',
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'-Wall -Werror -Wfatal-errors -I<(DEPTH)',
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'<(nc_result_path)',
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],
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'message': 'Generating no compile results for <(RULE_INPUT_PATH)',
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'process_outputs_as_sources': 1,
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},
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],
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}, {
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'sources/': [['exclude', '\\.nc$']]
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}], # 'OS=="linux" and clang=="0"'
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],
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}
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