1 # Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 # Use of this source code is governed by a BSD-style license that can be
3 # found in the LICENSE file.
5 # This file is meant to be included into an target to create a unittest that
6 # invokes a set of no-compile tests. A no-compile test is a test that asserts
7 # a particular construct will not compile.
10 # http://dev.chromium.org/developers/testing/no-compile-tests
12 # To use this, create a gyp target with the following form:
14 # 'target_name': 'my_module_nc_unittests',
15 # 'type': 'executable',
20 # 'includes': ['path/to/this/gypi/file'],
23 # The .nc files are C++ files that contain code we wish to assert will not
24 # compile. Each individual test case in the file should be put in its own
25 # #ifdef section. The expected output should be appended with a C++-style
26 # comment that has a python list of regular expressions. This will likely
27 # be greater than 80-characters. Giving a solid expected output test is
28 # important so that random compile failures do not cause the test to pass.
32 # #if defined(TEST_NEEDS_SEMICOLON) // [r"expected ',' or ';' at end of input"]
36 # #elif defined(TEST_NEEDS_CAST) // [r"invalid conversion from 'void*' to 'char*'"]
43 # If we needed disable TEST_NEEDS_SEMICOLON, then change the define to:
45 # DISABLE_TEST_NEEDS_SEMICOLON
48 # The lines above are parsed by a regexp so avoid getting creative with the
49 # formatting or ifdef logic; it will likely just not work.
51 # Implementation notes:
52 # The .nc files are actually processed by a python script which executes the
53 # compiler and generates a .cc file that is empty on success, or will have a
54 # series of #error lines on failure, and a set of trivially passing gunit
55 # TEST() functions on success. This allows us to fail at the compile step when
56 # something goes wrong, and know during the unittest run that the test was at
57 # least processed when things go right.
60 # TODO(awong): Disabled until http://crbug.com/105388 is resolved.
61 'sources/': [['exclude', '\\.nc$']],
63 [ 'OS=="linux" and clang==0', {
67 'nocompile_driver': '<(DEPTH)/tools/nocompile_driver.py',
68 'nc_result_path': ('<(INTERMEDIATE_DIR)/<(module_dir)/'
69 '<(RULE_INPUT_ROOT)_nc.cc'),
71 'rule_name': 'run_nocompile',
74 '<(nocompile_driver)',
81 '<(nocompile_driver)',
82 '4', # number of compilers to invoke in parallel.
84 '-Wall -Werror -Wfatal-errors -I<(DEPTH)',
87 'message': 'Generating no compile results for <(RULE_INPUT_PATH)',
88 'process_outputs_as_sources': 1,
92 'sources/': [['exclude', '\\.nc$']]
93 }], # 'OS=="linux" and clang=="0"'