Add a test for CFStringCreateCopy.

Normally this function should not create copies of constant strings, but it does when the default CFAllocator
is replaced (e.g. under AddressSanitizer)

This test is related to http://code.google.com/p/address-sanitizer/issues/detail?id=10

llvm-svn: 148695

1 files changed, 10 insertions, 0 deletions

diff --git a/compiler-rt/lib/asan/tests/asan_test.cc b/compiler-rt/lib/asan/tests/asan_test.cc
index ee0f46d26f0..d8657bf0cf3 100644
--- a/compiler-rt/lib/asan/tests/asan_test.cc
+++ b/compiler-rt/lib/asan/tests/asan_test.cc
@@ -29,6 +29,8 @@
 
 #ifndef __APPLE__
 #include <malloc.h>
+#else
+#include <CoreFoundation/CFString.h>
 #endif  // __APPLE__
 
 #ifdef __APPLE__
@@ -1894,6 +1896,14 @@ TEST(AddressSanitizerMac, DISABLED_TSDWorkqueueTest) {
   pthread_join(th, NULL);
   pthread_key_delete(test_key);
 }
+
+// Test that CFStringCreateCopy does not copy constant strings.
+TEST(AddressSanitizerMac, DISABLED_CFStringCreateCopy) {
+  CFStringRef str = CFSTR("Hello world!\n");
+  CFStringRef str2 = CFStringCreateCopy(0, str);
+  EXPECT_EQ(str, str2);
+}
+
 #endif  // __APPLE__
 
 int main(int argc, char **argv) {