1 files changed, 70 insertions, 0 deletions
diff --git a/test/implicit-cache/SetOption.py b/test/implicit-cache/SetOption.py
new file mode 100644
index 0000000..ee2afa5
--- /dev/null
+++ b/test/implicit-cache/SetOption.py
@@ -0,0 +1,70 @@
+#!/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()