1 files changed, 105 insertions, 0 deletions
diff --git a/test/chained-build.py b/test/chained-build.py
new file mode 100644
index 0000000..c3351e1
--- /dev/null
+++ b/test/chained-build.py
@@ -0,0 +1,105 @@
+#!/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__"
+
+import TestSCons
+
+test = TestSCons.TestSCons()
+
+# During the development of 0.96, there was a --save-explain-info
+# option for a brief moment that would surpress storing extra
+# info in the .sconsign file(s).  At that time, this test used two
+# working subdirectories to test both with and without the saved info.
+# We eliminated the --save-explain-info option and the second working
+# subdirectory here, but didn't go back and change all the filenames.
+test.subdir('w1')
+
+SConstruct1_contents = """\
+def build(env, target, source):
+    open(str(target[0]), 'wt').write(open(str(source[0]), 'rt').read())
+
+env=Environment(BUILDERS={'B' : Builder(action=build)})
+env.B('foo.mid', 'foo.in')
+"""
+
+SConstruct2_contents = """\
+def build(env, target, source):
+    open(str(target[0]), 'wt').write(open(str(source[0]), 'rt').read())
+
+env=Environment(BUILDERS={'B' : Builder(action=build)})
+env.B('foo.out', 'foo.mid')
+"""
+
+test.write(['w1', 'SConstruct1'], SConstruct1_contents)
+test.write(['w1', 'SConstruct2'], SConstruct2_contents)
+test.write(['w1', 'foo.in'], "foo.in 1")
+
+test.run(chdir='w1',
+         arguments="--max-drift=0 -f SConstruct1 foo.mid",
+         stdout = test.wrap_stdout('build(["foo.mid"], ["foo.in"])\n'))
+
+test.run(chdir='w1',
+         arguments="--max-drift=0 -f SConstruct2 foo.out",
+         stdout = test.wrap_stdout('build(["foo.out"], ["foo.mid"])\n'))
+
+test.up_to_date(chdir='w1',
+                options="--max-drift=0 -f SConstruct1",
+                arguments="foo.mid")
+
+test.up_to_date(chdir='w1',
+                options="--max-drift=0 -f SConstruct2",
+                arguments="foo.out")
+
+test.sleep()  # make sure foo.in rewrite has new mod-time
+test.write(['w1', 'foo.in'], "foo.in 2")
+
+# Because we're using --max-drift=0, we use the cached csig value
+# and think that foo.in hasn't changed even though it has on disk.
+test.up_to_date(chdir='w1',
+         options="--max-drift=0 -f SConstruct1",
+         arguments="foo.mid")
+
+# Now try with --max-drift disabled.  The build of foo.out should still
+# be considered up-to-date, but the build of foo.mid now detects the
+# change and rebuilds, too, which then causes a rebuild of foo.out.
+test.up_to_date(chdir='w1',
+                options="--max-drift=-1 -f SConstruct2",
+                arguments="foo.out")
+
+test.run(chdir='w1',
+         arguments="--max-drift=-1 -f SConstruct1 foo.mid",
+         stdout = test.wrap_stdout('build(["foo.mid"], ["foo.in"])\n'))
+
+test.run(chdir='w1',
+         arguments="--max-drift=-1 -f SConstruct2 foo.out",
+         stdout = test.wrap_stdout('build(["foo.out"], ["foo.mid"])\n'))
+
+test.pass_test()
+
+# Local Variables:
+# tab-width:4
+# indent-tabs-mode:nil
+# End:
+# vim: set expandtab tabstop=4 shiftwidth=4: