tsan: add some more tests for memory allocator

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@161950 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 7 insertions, 0 deletions

diff --git a/lib/sanitizer_common/tests/sanitizer_allocator64_test.cc b/lib/sanitizer_common/tests/sanitizer_allocator64_test.cc
index 1410f26ce..87d564b16 100644
--- a/lib/sanitizer_common/tests/sanitizer_allocator64_test.cc
+++ b/lib/sanitizer_common/tests/sanitizer_allocator64_test.cc
@@ -193,6 +193,13 @@ TEST(SanitizerCommon, CombinedAllocator) {
   Allocator a;
   a.Init();
   cache.Init();
+
+  EXPECT_EQ(a.Allocate(&cache, -1, 1), (void*)0);
+  EXPECT_EQ(a.Allocate(&cache, -1, 1024), (void*)0);
+  EXPECT_EQ(a.Allocate(&cache, (uptr)-1 - 1024, 1), (void*)0);
+  EXPECT_EQ(a.Allocate(&cache, (uptr)-1 - 1024, 1024), (void*)0);
+  EXPECT_EQ(a.Allocate(&cache, (uptr)-1 - 1023, 1024), (void*)0);
+
   const uptr kNumAllocs = 100000;
   const uptr kNumIter = 10;
   for (uptr iter = 0; iter < kNumIter; iter++) {