Improve robustness of dependency-generation-crash.c test.

The test wants to provoke a failure when opening the output file.
Using chmod 0 on the output file does not work reliably on all
filesystems or when running the test as root.
Change the test to use a nonexistant directory instead.

Differential Revision: http://reviews.llvm.org/D7620

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@231009 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Frontend/dependency-generation-crash.c b/test/Frontend/dependency-generation-crash.c
index 63a6a7732e9b825b5eb91c857006721a2a343a58..ad6791a6e0228609516b5fc720bec549f2ee0ac1 100644 (file)
--- a/test/Frontend/dependency-generation-crash.c
+++ b/test/Frontend/dependency-generation-crash.c
@@ -1,7 +1,4 @@
-// RUN: touch %t
-// RUN: chmod 0 %t
-// RUN: not %clang_cc1 -E -dependency-file bla -MT %t -MP -o %t -x c /dev/null 2>&1 | FileCheck %s
-// RUN: rm -f %t
+// RUN: not %clang_cc1 -E -dependency-file bla -MT %t/doesnotexist/bla.o -MP -o $t/doesnotexist/bla.o -x c /dev/null 2>&1 | FileCheck %s
 
 // CHECK: error: unable to open output file