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author | Steven Knight <knight@baldmt.com> | 2005-10-03 23:08:24 (GMT) |
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committer | Steven Knight <knight@baldmt.com> | 2005-10-03 23:08:24 (GMT) |
commit | 357bb311e8ebe13ae5ec43e6fb2cb91aa16b8a15 (patch) | |
tree | 77acfc03c7fb062b25c4b64a49453dd0be8abf5e /test/rebuild-generated.py | |
parent | 1529ef17c861d83e5643e53640fd7971cf7456ef (diff) | |
download | SCons-357bb311e8ebe13ae5ec43e6fb2cb91aa16b8a15.zip SCons-357bb311e8ebe13ae5ec43e6fb2cb91aa16b8a15.tar.gz SCons-357bb311e8ebe13ae5ec43e6fb2cb91aa16b8a15.tar.bz2 |
Add a self-contained test for not rebuilding generated header files. (Patrick Mezard) Fix a runtest.py issue.
Diffstat (limited to 'test/rebuild-generated.py')
-rw-r--r-- | test/rebuild-generated.py | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/test/rebuild-generated.py b/test/rebuild-generated.py new file mode 100644 index 0000000..03acf6d --- /dev/null +++ b/test/rebuild-generated.py @@ -0,0 +1,119 @@ +#!/usr/bin/env python +# +# __COPYRIGHT__ +# +# Permission is hereby granted, free of charge, to any person obtaining +# a copy of this software and associated documentation files (the +# "Software"), to deal in the Software without restriction, including +# without limitation the rights to use, copy, modify, merge, publish, +# distribute, sublicense, and/or sell copies of the Software, and to +# permit persons to whom the Software is furnished to do so, subject to +# the following conditions: +# +# The above copyright notice and this permission notice shall be included +# in all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY +# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE +# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +# + +__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__" + +""" +Test case for the bug report: +"[ 1088979 ] Unnecessary rebuild with generated header file" +(<http://sourceforge.net/tracker/index.php?func=detail&aid=1088979&group_id=30337&atid=398971>). + +Unnecessary rebuild with generated header file +Scons rebuilds some nodes when invoked twice. The +trigger seems to be a generated C++ source file that +includes a header file that also is generated. + +A tarball with a minimal test case is attached. +Transcript for reproducing: + +cd /tmp +tar xzf scons_rebuild_debug.tar.gz +cd scons_rebuild_debug +scons target.o +scons target.o + + +Note that the bug is not triggered when scons is run +without arguments. + +This may be a duplicate to bug 1019683. +""" + +import sys +import TestSCons + +test = TestSCons.TestSCons() + +_obj = TestSCons._obj + +if sys.platform == 'win32': + generator_name = 'generator.bat' + test.write(generator_name, '@echo #include "header.hh"') + kernel_action = "$SOURCES > $TARGET" +else: + generator_name = 'generator.sh' + test.write(generator_name, 'echo \'#include "header.hh"\'') + kernel_action = "sh $SOURCES > $TARGET" + +test.write('SConstruct', """\ + +env = Environment() + +kernelDefines = env.Command("header.hh", + [], + Touch("$TARGET")) + +kernelImporterSource = env.Command( + "generated.cc", ["%s"], + "%s") + +kernelImporter = env.Program( + kernelImporterSource + ["main.cc"]) + +kernelImports = env.Command( + "KernelImport.hh", kernelImporter, + "./$SOURCE > $TARGET") + +osLinuxModule = env.StaticObject( + ["target.cc"]) +""" % (generator_name, kernel_action)) + +test.write('main.cc', """\ +int +main(int, char *[]) +{} +""") + +test.write('target.cc', """\ +#if 0 + +#include "KernelImport.hh" + +#endif +""") + +test.run(arguments = 'target' + _obj) + +expected_stdout = """\ +scons: Reading SConscript files ... +scons: done reading SConscript files. +scons: Building targets ... +scons: `target%(_obj)s' is up to date. +scons: done building targets. +""" % locals() + +test.run(arguments = 'target' + _obj, stdout=expected_stdout) + +test.pass_test() + |