Add a test for NSURL deallocation (issue 70)

llvm-svn: 158843

compiler-rt/lib/asan/tests/asan_mac_test.h

@@ -14,4 +14,5 @@ extern "C" {
   void TestGCDSourceCancel();
   void TestGCDGroupAsync();
   void TestOOBNSObjects();
+  void TestNSURLDeallocation();
 }

compiler-rt/lib/asan/tests/asan_mac_test.mm

@@ -7,6 +7,7 @@
 
 #import <CoreFoundation/CFBase.h>
 #import <Foundation/NSObject.h>
+#import <Foundation/NSURL.h>
 
 void CFAllocatorDefaultDoubleFree() {
   void *mem =  CFAllocatorAllocate(kCFAllocatorDefault, 5, 0);
@@ -223,3 +224,12 @@ void TestOOBNSObjects() {
   [anObject access:11];
   [anObject release];
 }
+
+void TestNSURLDeallocation() {
+  NSURL *base =
+      [[NSURL alloc] initWithString:@"file://localhost/Users/glider/Library/"];
+  volatile NSURL *u =
+      [[NSURL alloc] initWithString:@"Saved Application State"
+                     relativeToURL:base];
+  [u release];
+}

compiler-rt/lib/asan/tests/asan_test.cc

@@ -2049,6 +2049,13 @@ TEST(AddressSanitizerMac, NSObjectOOB) {
   // Make sure that our allocators are used for NSObjects.
   EXPECT_DEATH(TestOOBNSObjects(), "heap-buffer-overflow");
 }
+
+// Make sure that correct pointer is passed to free() when deallocating a
+// NSURL object.
+// See http://code.google.com/p/address-sanitizer/issues/detail?id=70.
+TEST(AddressSanitizerMac, DISABLED_NSURLDeallocation) {
+  TestNSURLDeallocation();
+}
 #endif  // __APPLE__
 
 // Test that instrumentation of stack allocations takes into account