1 files changed, 82 insertions, 0 deletions
diff --git a/security/nss/gtests/util_gtest/util_aligned_malloc_unittest.cc b/security/nss/gtests/util_gtest/util_aligned_malloc_unittest.cc
new file mode 100644
index 000000000..9745ca7d3
--- /dev/null
+++ b/security/nss/gtests/util_gtest/util_aligned_malloc_unittest.cc
@@ -0,0 +1,82 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "gtest/gtest.h"
+#include "scoped_ptrs_util.h"
+
+namespace nss_test {
+
+struct SomeContext {
+  uint8_t some_buf[13];
+  void *mem;
+};
+
+template <class T>
+struct ScopedDelete {
+  void operator()(T *ptr) {
+    if (ptr) {
+      PORT_Free(ptr->mem);
+    }
+  }
+};
+typedef std::unique_ptr<SomeContext, ScopedDelete<SomeContext> >
+    ScopedSomeContext;
+
+class AlignedMallocTest : public ::testing::Test,
+                          public ::testing::WithParamInterface<size_t> {
+ protected:
+  ScopedSomeContext test_align_new(size_t alignment) {
+    ScopedSomeContext ctx(PORT_ZNewAligned(SomeContext, alignment, mem));
+    return ctx;
+  };
+  ScopedSomeContext test_align_alloc(size_t alignment) {
+    void *mem = nullptr;
+    ScopedSomeContext ctx((SomeContext *)PORT_ZAllocAligned(sizeof(SomeContext),
+                                                            alignment, &mem));
+    if (ctx) {
+      ctx->mem = mem;
+    }
+    return ctx;
+  }
+};
+
+TEST_P(AlignedMallocTest, TestNew) {
+  size_t alignment = GetParam();
+  ScopedSomeContext ctx = test_align_new(alignment);
+  EXPECT_TRUE(ctx.get());
+  EXPECT_EQ(0U, (uintptr_t)ctx.get() % alignment);
+}
+
+TEST_P(AlignedMallocTest, TestAlloc) {
+  size_t alignment = GetParam();
+  ScopedSomeContext ctx = test_align_alloc(alignment);
+  EXPECT_TRUE(ctx.get());
+  EXPECT_EQ(0U, (uintptr_t)ctx.get() % alignment);
+}
+
+class AlignedMallocTestBadSize : public AlignedMallocTest {};
+
+TEST_P(AlignedMallocTestBadSize, TestNew) {
+  size_t alignment = GetParam();
+  ScopedSomeContext ctx = test_align_new(alignment);
+  EXPECT_FALSE(ctx.get());
+}
+
+TEST_P(AlignedMallocTestBadSize, TestAlloc) {
+  size_t alignment = GetParam();
+  ScopedSomeContext ctx = test_align_alloc(alignment);
+  EXPECT_FALSE(ctx.get());
+}
+
+static const size_t kSizes[] = {1, 2, 4, 8, 16, 32, 64};
+static const size_t kBadSizes[] = {0, 7, 17, 24, 56};
+
+INSTANTIATE_TEST_CASE_P(AllAligned, AlignedMallocTest,
+                        ::testing::ValuesIn(kSizes));
+INSTANTIATE_TEST_CASE_P(AllAlignedBadSize, AlignedMallocTestBadSize,
+                        ::testing::ValuesIn(kBadSizes));
+
+}  // namespace nss_test