5 files changed, 694 insertions, 0 deletions
diff --git a/test/implicit-cache/DualTargets.py b/test/implicit-cache/DualTargets.py
new file mode 100644
index 0000000..45174ea
--- /dev/null
+++ b/test/implicit-cache/DualTargets.py
@@ -0,0 +1,141 @@
+#!/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 that --implicit-cache works correctly in conjonction with a
+builder that produces multiple targets.
+"""
+
+import TestSCons
+
+test = TestSCons.TestSCons()
+
+test.write('SConstruct', """\
+import os.path
+
+def emitter(target, source, env):
+    tgt0 = target[0].get_abspath()
+    base,ext = os.path.splitext(tgt0)
+    target.append(base + '.b')
+    return(target, source)
+
+
+def source_scan(node, env, path):
+    path = node.get_abspath()
+    base,ext = os.path.splitext(path)
+    return [base + '.lib']
+
+
+env = Environment()
+env['BUILDERS']['DualTarget'] = Builder(
+    action = Action(
+        [ 
+            Copy( '$TARGET', '$SOURCE' ), 
+            Copy( '${TARGET.base}.b', '$SOURCE' ), 
+            ],
+        ),
+    suffix = '.a',
+    src_suffix = '.cpp',
+    single_source = True,
+    emitter=emitter,
+    source_scanner=Scanner(source_scan),
+    )
+
+env.Command( 'x.cpp', '', Touch('$TARGET') )
+env.Command( 'x.lib', '', Touch('$TARGET') )
+
+env.DualTarget('x.cpp')
+""" % locals())
+
+test.must_not_exist('x.cpp')
+test.must_not_exist('x.lib')
+test.must_not_exist('x.a')
+test.must_not_exist('x.b')
+
+# Build everything first.
+test.run(arguments = '.')
+test.must_exist('x.cpp')
+test.must_exist('x.lib')
+test.must_exist('x.a')
+test.must_exist('x.b')
+
+test.must_contain_all_lines(test.stdout(), ['Copy'])
+
+# Double check that targets are not rebuilt.
+test.run(arguments = '.')
+test.must_exist('x.cpp')
+test.must_exist('x.lib')
+test.must_exist('x.a')
+test.must_exist('x.b')
+
+test.must_not_contain_any_line(test.stdout(), ['Copy'])
+
+# Double check that targets are not rebuilt even with --implicit-cache
+test.run(arguments = '--implicit-cache x.a')
+test.must_exist('x.cpp')
+test.must_exist('x.lib')
+test.must_exist('x.a')
+test.must_exist('x.b')
+
+test.must_not_contain_any_line(test.stdout(), ['Copy'])
+
+# Double check that targets are not rebuilt even with --implicit-cache
+# a second time.
+test.run(arguments = '--implicit-cache x.a')
+test.must_exist('x.cpp')
+test.must_exist('x.lib')
+test.must_exist('x.a')
+test.must_exist('x.b')
+
+test.must_not_contain_any_line(test.stdout(), ['Copy'])
+
+# Double check that targets are not rebuilt if we reran without
+# --implicit-cache
+test.run(arguments = '.')
+test.must_exist('x.cpp')
+test.must_exist('x.lib')
+test.must_exist('x.a')
+test.must_exist('x.b')
+
+test.must_not_contain_any_line(test.stdout(), ['Copy'])
+
+# Double check again
+test.run(arguments = '.')
+test.must_exist('x.cpp')
+test.must_exist('x.lib')
+test.must_exist('x.a')
+test.must_exist('x.b')
+
+test.must_not_contain_any_line(test.stdout(), ['Copy'])
+
+# Then only of the targets using --implicit-cache
+test.pass_test()
+
+# Local Variables:
+# tab-width:4
+# indent-tabs-mode:nil
+# End:
+# vim: set expandtab tabstop=4 shiftwidth=4:
diff --git a/test/implicit-cache/GetOption.py b/test/implicit-cache/GetOption.py
new file mode 100644
index 0000000..818784a
--- /dev/null
+++ b/test/implicit-cache/GetOption.py
@@ -0,0 +1,59 @@
+#!/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__"
+
+"""
+Verify that SetOption/GetOption('implicit_cache') works and can
+be overridden from the command line.
+"""
+
+import TestSCons
+
+test = TestSCons.TestSCons()
+
+test.write('SConstruct', """
+assert not GetOption('implicit_cache')
+SetOption('implicit_cache', 1)
+assert GetOption('implicit_cache')
+""")
+
+test.run()
+
+test.write('SConstruct', """
+assert GetOption('implicit_cache')
+SetOption('implicit_cache', 0)
+assert GetOption('implicit_cache')
+""")
+
+test.run(arguments='--implicit-cache')
+
+
+test.pass_test()
+
+# Local Variables:
+# tab-width:4
+# indent-tabs-mode:nil
+# End:
+# vim: set expandtab tabstop=4 shiftwidth=4:
diff --git a/test/implicit-cache/RemoveImplicitDep.py b/test/implicit-cache/RemoveImplicitDep.py
new file mode 100644
index 0000000..6a9b873
--- /dev/null
+++ b/test/implicit-cache/RemoveImplicitDep.py
@@ -0,0 +1,74 @@
+#!/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__"
+
+"""
+A weird case with implicit_cache not working with multiple targets
+"""
+
+import TestSCons
+
+_python_ = TestSCons._python_
+
+test = TestSCons.TestSCons()
+
+test.subdir(['src'])
+
+SConstruct_contents = """\
+import SCons.Script
+
+SetOption( 'implicit_cache', 1 )
+
+env = Environment()
+act = Action([Touch('${TARGETS[0]}'),Touch('${TARGETS[1]}')])
+env.Append(BUILDERS = {'BuildMe':Builder(action=act,source_scanner=SCons.Script.SourceFileScanner)} )
+
+env.BuildMe( source='inc.c', target=['a','b'] )
+"""
+
+test.write(['src', 'SConstruct'], SConstruct_contents)
+
+test.write(['src', 'inc.c'], """\
+#include <f1.h>
+#include <f2.h>
+""")
+test.write(['src', 'f1.h'], 'blah' )
+test.write(['src', 'f2.h'], 'blah' )
+        
+expect = test.wrap_stdout("""\
+Touch("a")
+Touch("b")
+""")
+
+test.run(chdir='src', arguments='', stdout=expect)
+
+test.write(['src', 'inc.c'], """\
+#include <f2.h>
+""")
+test.unlink( ['src', 'f1.h'] )
+
+test.run(chdir='src', arguments='', stdout=expect)
+
+test.pass_test()
diff --git a/test/implicit-cache/SetOption.py b/test/implicit-cache/SetOption.py
new file mode 100644
index 0000000..41a7fb6
--- /dev/null
+++ b/test/implicit-cache/SetOption.py
@@ -0,0 +1,76 @@
+#!/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__"
+
+"""
+Verify that SetOption('implicit_cache', 1) actually enables implicit
+caching by detecting the case where implicit caching causes inaccurate
+builds:  a same-named file dropped into a directory earlier in the
+CPPPATH list will *not* be detected because we use what's in the cache.
+"""
+
+import TestSCons
+
+test = TestSCons.TestSCons()
+
+test.write('SConstruct', """
+SetOption('implicit_cache', 1)
+env=Environment(CPPPATH=['i1', 'i2'])
+env.Object('foo.c')
+""")
+
+test.subdir('i1')
+test.subdir('i2')
+
+test.write('foo.c', """
+#include <foo.h>
+
+void foo(void)
+{
+    FOO_H_DEFINED
+    ++x;  /* reference x */
+}
+""")
+
+test.write('i2/foo.h', """
+#define FOO_H_DEFINED int x = 1;
+""")
+
+test.run(arguments = '.')
+
+test.write('i1/foo.h', """
+this line will cause a syntax error if it's included by a rebuild
+""");
+
+test.up_to_date(arguments = '.')
+
+
+test.pass_test()
+
+# Local Variables:
+# tab-width:4
+# indent-tabs-mode:nil
+# End:
+# vim: set expandtab tabstop=4 shiftwidth=4:
diff --git a/test/implicit-cache/basic.py b/test/implicit-cache/basic.py
new file mode 100644
index 0000000..a3a6546
--- /dev/null
+++ b/test/implicit-cache/basic.py
@@ -0,0 +1,344 @@
+#!/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__"
+
+"""
+Verify basic interactions of the --implicit-cache-* options.
+
+This test used to set TargetSignatures('build') because we were
+relying on the old behavior of non-essential changes in .h files
+propagate to cause a rebuilt executable.  We now just rely on
+the default Decider('content') behavior and only check for the
+rebuild of the object file itself when necessary.
+"""
+
+import os.path
+
+import TestSCons
+
+_exe = TestSCons._exe
+_obj = TestSCons._obj
+
+prog = 'prog' + _exe
+subdir_prog = os.path.join('subdir', 'prog' + _exe)
+variant_prog = os.path.join('variant', 'prog' + _exe)
+variant_prog_obj = os.path.join('variant', 'prog' + _obj)
+
+args = prog + ' ' + subdir_prog + ' ' + variant_prog
+
+test = TestSCons.TestSCons()
+
+test.subdir('include', 'subdir', ['subdir', 'include'], 'inc2')
+
+test.write('SConstruct', """
+env = Environment(CPPPATH = Split('inc2 include'))
+obj = env.Object(target='prog', source='subdir/prog.c')
+env.Program(target='prog', source=obj)
+SConscript('subdir/SConscript', "env")
+
+VariantDir('variant', 'subdir', 0)
+include = Dir('include')
+env = Environment(CPPPATH=['inc2', include])
+SConscript('variant/SConscript', "env")
+
+def copy(target, source, env):
+    open(str(target[0]), 'wt').write(open(str(source[0]), 'rt').read())
+nodep = env.Command('nodeps.c', 'nodeps.in', action=copy)
+env.Program('nodeps', 'nodeps.c')
+
+env.Object(['one', 'two'], ['one.c'])
+""")
+
+test.write(['subdir', 'SConscript'],
+"""
+Import("env")
+env.Program(target='prog', source='prog.c')
+""")
+
+test.write('nodeps.in', r"""
+int
+main(int argc, char *argv[])
+{
+    argv[argc++] = "--";
+    return 0;
+}
+""")
+
+
+test.write(['include', 'foo.h'], r"""
+#define FOO_STRING "include/foo.h 1\n"
+#include <bar.h>
+""")
+
+test.write(['include', 'bar.h'], r"""
+#define BAR_STRING "include/bar.h 1\n"
+""")
+
+test.write(['include', 'baz.h'], r"""
+#define BAZ_STRING "include/baz.h 1\n"
+""")
+
+test.write(['subdir', 'prog.c'], r"""
+#include <foo.h>
+#include <stdio.h>
+
+int
+main(int argc, char *argv[])
+{
+    argv[argc++] = "--";
+    printf("subdir/prog.c\n");
+    printf(FOO_STRING);
+    printf(BAR_STRING);
+    return 0;
+}
+""")
+
+test.write(['subdir', 'include', 'foo.h'], r"""
+#define FOO_STRING "subdir/include/foo.h 1\n"
+#include "bar.h"
+""")
+
+test.write(['subdir', 'include', 'bar.h'], r"""
+#define BAR_STRING "subdir/include/bar.h 1\n"
+""")
+
+test.write('one.c' , r"""
+#include <foo.h>
+
+void one(void) { }
+""")
+
+test.run(arguments = "--implicit-cache " + args)
+
+test.run(program = test.workpath(prog),
+         stdout = "subdir/prog.c\ninclude/foo.h 1\ninclude/bar.h 1\n")
+
+test.run(program = test.workpath(subdir_prog),
+         stdout = "subdir/prog.c\nsubdir/include/foo.h 1\nsubdir/include/bar.h 1\n")
+
+test.run(program = test.workpath(variant_prog),
+         stdout = "subdir/prog.c\ninclude/foo.h 1\ninclude/bar.h 1\n")
+
+test.up_to_date(arguments = args)
+
+
+
+# Make sure implicit dependencies work right when one is modifed:
+test.write(['include', 'foo.h'], r"""
+#define FOO_STRING "include/foo.h 2\n"
+#include "bar.h"
+""")
+
+test.run(arguments = "--implicit-cache " + args)
+
+test.run(program = test.workpath(prog),
+         stdout = "subdir/prog.c\ninclude/foo.h 2\ninclude/bar.h 1\n")
+
+test.run(program = test.workpath(subdir_prog),
+         stdout = "subdir/prog.c\nsubdir/include/foo.h 1\nsubdir/include/bar.h 1\n")
+
+test.run(program = test.workpath(variant_prog),
+         stdout = "subdir/prog.c\ninclude/foo.h 2\ninclude/bar.h 1\n")
+
+test.up_to_date(arguments = args)
+
+
+
+# Make sure that changing the order of includes causes rebuilds and
+# doesn't produce redundant rebuilds:
+test.write(['include', 'foo.h'], r"""
+#define FOO_STRING "include/foo.h 2\n"
+#include "bar.h"
+#include "baz.h"
+""")
+
+test.run(arguments = "--implicit-cache " + args)
+
+test.run(program = test.workpath(prog),
+         stdout = "subdir/prog.c\ninclude/foo.h 2\ninclude/bar.h 1\n")
+
+test.run(program = test.workpath(subdir_prog),
+         stdout = "subdir/prog.c\nsubdir/include/foo.h 1\nsubdir/include/bar.h 1\n")
+
+test.run(program = test.workpath(variant_prog),
+         stdout = "subdir/prog.c\ninclude/foo.h 2\ninclude/bar.h 1\n")
+
+test.up_to_date(arguments = args)
+
+
+
+test.write(['include', 'foo.h'], r"""
+#define FOO_STRING "include/foo.h 2\n"
+#include "baz.h"
+#include "bar.h"
+""")
+
+test.run(arguments = "--implicit-cache " + args)
+
+test.run(program = test.workpath(prog),
+         stdout = "subdir/prog.c\ninclude/foo.h 2\ninclude/bar.h 1\n")
+
+test.run(program = test.workpath(subdir_prog),
+         stdout = "subdir/prog.c\nsubdir/include/foo.h 1\nsubdir/include/bar.h 1\n")
+
+test.run(program = test.workpath(variant_prog),
+         stdout = "subdir/prog.c\ninclude/foo.h 2\ninclude/bar.h 1\n")
+
+test.up_to_date(arguments = args)
+
+
+
+# Add inc2/foo.h that should shadow include/foo.h, but
+# because of implicit dependency caching, scons doesn't
+# detect this:
+test.write(['inc2', 'foo.h'], r"""
+#define FOO_STRING "inc2/foo.h 1\n"
+#include <bar.h>
+""")
+
+test.run(arguments = "--implicit-cache " + args)
+
+test.run(program = test.workpath(prog),
+         stdout = "subdir/prog.c\ninclude/foo.h 2\ninclude/bar.h 1\n")
+
+test.run(program = test.workpath(subdir_prog),
+         stdout = "subdir/prog.c\nsubdir/include/foo.h 1\nsubdir/include/bar.h 1\n")
+
+test.run(program = test.workpath(variant_prog),
+         stdout = "subdir/prog.c\ninclude/foo.h 2\ninclude/bar.h 1\n")
+
+
+
+# Now modifying include/foo.h should make scons aware of inc2/foo.h
+test.write(['include', 'foo.h'], r"""
+#define FOO_STRING "include/foo.h 3\n"
+#include "bar.h"
+""")
+
+test.run(arguments = "--implicit-cache " + args)
+
+test.run(program = test.workpath(prog),
+         stdout = "subdir/prog.c\ninc2/foo.h 1\ninclude/bar.h 1\n")
+
+test.run(program = test.workpath(subdir_prog),
+         stdout = "subdir/prog.c\nsubdir/include/foo.h 1\nsubdir/include/bar.h 1\n")
+
+test.run(program = test.workpath(variant_prog),
+         stdout = "subdir/prog.c\ninclude/foo.h 3\ninclude/bar.h 1\n")
+
+
+
+# test a file with no dependencies where the source file is generated:
+test.run(arguments = "--implicit-cache nodeps%s"%_exe)
+
+test.write('nodeps.in', r"""
+#include <foo.h>
+
+int
+main(int argc, char *argv[])
+{
+    argv[argc++] = "--";
+    return 0;
+}
+""")
+
+test.run(arguments = "--implicit-cache one%s"%_obj)
+
+
+
+# Test forcing of implicit caching:
+test.write(['include', 'foo.h'], r"""
+#define FOO_STRING "include/foo.h 3\n"
+#include "bar.h"
+""")
+
+# Cache the dependencies of prog_obj:  foo.h and its included bar.h.
+test.run(arguments = "--implicit-cache " + args)
+
+# Now add baz.h to the implicit dependencies in foo.h.
+test.write(['include', 'foo.h'], r"""
+#define FOO_STRING "include/foo.h 3\n"
+#include "baz.h"
+#include "bar.h"
+""")
+
+# Rebuild variant_prog_obj because the already-cached foo.h changed,
+# but use --implicit-deps-unchanged to avoid noticing the addition
+# of baz.h to the implicit dependencies.
+test.not_up_to_date(options = "--implicit-deps-unchanged",
+                    arguments = variant_prog_obj)
+
+test.write(['include', 'baz.h'], r"""
+#define BAZ_STRING "include/baz.h 2\n"
+""")
+
+# variant_prog_obj is still up to date, because it doesn't know about
+# baz.h and therefore the change we just made to it.
+test.up_to_date(options = "--implicit-deps-unchanged",
+                arguments = variant_prog_obj)
+
+# Now rebuild it normally.
+test.not_up_to_date(arguments = variant_prog_obj)
+
+# And rebuild its executable, just so everything's normal.
+test.run(arguments = variant_prog)
+
+
+# Test forcing rescanning:
+test.write(['include', 'foo.h'], r"""
+#define FOO_STRING "include/foo.h 3\n"
+#include "bar.h"
+""")
+
+test.run(arguments = "--implicit-cache " + args)
+
+test.write(['include', 'foo.h'], r"""
+#define FOO_STRING "include/foo.h 3\n"
+#include "baz.h"
+#include "bar.h"
+""")
+
+test.not_up_to_date(options = "--implicit-deps-unchanged",
+                    arguments = variant_prog_obj)
+
+test.write(['include', 'baz.h'], r"""
+#define BAZ_STRING "include/baz.h 2\n"
+""")
+
+test.up_to_date(options = "--implicit-deps-unchanged",
+                arguments = variant_prog_obj)
+
+test.not_up_to_date(options = "--implicit-deps-changed",
+                    arguments = variant_prog_obj)
+
+
+
+test.pass_test()
+
+# Local Variables:
+# tab-width:4
+# indent-tabs-mode:nil
+# End:
+# vim: set expandtab tabstop=4 shiftwidth=4: