base: Discardable memory types.

base/memory/discardable_memory_unittest.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/memory/discardable_memory.h"
 
-#include <limits>
+#include <algorithm>
 
 #include "testing/gtest/include/gtest/gtest.h"
 
+#if defined(OS_ANDROID)
+#include <limits>
+#endif
+
 namespace base {
+namespace {
+
+class DiscardableMemoryTest
+    : public testing::TestWithParam<DiscardableMemoryType> {
+ protected:
+  scoped_ptr<DiscardableMemory> CreateLockedMemory(size_t size) {
+    return DiscardableMemory::CreateLockedMemory(GetParam(), size).Pass();
+  }
+};
 
 const size_t kSize = 1024;
 
+TEST_P(DiscardableMemoryTest, IsNamed) {
+  std::string type_name(DiscardableMemory::GetTypeName(GetParam()));
+  EXPECT_NE("unknown", type_name);
+  EXPECT_EQ(GetParam(), DiscardableMemory::GetNamedType(type_name));
+}
+
 #if defined(OS_ANDROID)
-TEST(DiscardableMemoryTest, TooLargeAllocationFails) {
+TEST_P(DiscardableMemoryTest, TooLargeAllocationFails) {
+  if (GetParam() != DISCARDABLE_MEMORY_TYPE_ANDROID)
+    return;
   const size_t kPageSize = 4096;
   const size_t max_allowed_allocation_size =
       std::numeric_limits<size_t>::max() - kPageSize + 1;
   scoped_ptr<DiscardableMemory> memory(
-      DiscardableMemory::CreateLockedMemory(max_allowed_allocation_size + 1));
+      CreateLockedMemory(max_allowed_allocation_size + 1));
   // On certain platforms (e.g. Android), page-alignment would have caused an
   // overflow resulting in a small allocation if the input size wasn't checked
   // correctly.
   ASSERT_FALSE(memory);
 }
 #endif
 
-TEST(DiscardableMemoryTest, SupportedNatively) {
+bool IsNativeType(DiscardableMemoryType type) {
+  return
+      type == DISCARDABLE_MEMORY_TYPE_ANDROID ||
+      type == DISCARDABLE_MEMORY_TYPE_MAC;
+}
+
+TEST_P(DiscardableMemoryTest, SupportedNatively) {
+  std::vector<DiscardableMemoryType> supported_types;
+  DiscardableMemory::GetSupportedTypes(&supported_types);
 #if defined(DISCARDABLE_MEMORY_ALWAYS_SUPPORTED_NATIVELY)
-  ASSERT_TRUE(DiscardableMemory::SupportedNatively());
+  EXPECT_NE(0u, std::count_if(supported_types.begin(),
+                              supported_types.end(),
+                              IsNativeType));
 #else
   // If we ever have a platform that decides at runtime if it can support
   // discardable memory natively, then we'll have to add a 'never supported
   // natively' define for this case. At present, if it's not always supported
   // natively, it's never supported.
-  ASSERT_FALSE(DiscardableMemory::SupportedNatively());
+  EXPECT_EQ(0u, std::count_if(supported_types.begin(),
+                              supported_types.end(),
+                              IsNativeType));
 #endif
 }
 
 // Test Lock() and Unlock() functionalities.
-TEST(DiscardableMemoryTest, LockAndUnLock) {
-  const scoped_ptr<DiscardableMemory> memory(
-      DiscardableMemory::CreateLockedMemory(kSize));
+TEST_P(DiscardableMemoryTest, LockAndUnLock) {
+  const scoped_ptr<DiscardableMemory> memory(CreateLockedMemory(kSize));
   ASSERT_TRUE(memory);
   void* addr = memory->Memory();
   ASSERT_NE(static_cast<void*>(NULL), addr);
 
   memory->Unlock();
   // The system should have no reason to purge discardable blocks in this brief
   // interval, though technically speaking this might flake.
-  EXPECT_EQ(DISCARDABLE_MEMORY_SUCCESS, memory->Lock());
+  EXPECT_EQ(DISCARDABLE_MEMORY_LOCK_STATUS_SUCCESS, memory->Lock());
   addr = memory->Memory();
   ASSERT_NE(static_cast<void*>(NULL), addr);
 
   memory->Unlock();
 }
 
 // Test delete a discardable memory while it is locked.
-TEST(DiscardableMemoryTest, DeleteWhileLocked) {
-  const scoped_ptr<DiscardableMemory> memory(
-      DiscardableMemory::CreateLockedMemory(kSize));
+TEST_P(DiscardableMemoryTest, DeleteWhileLocked) {
+  const scoped_ptr<DiscardableMemory> memory(CreateLockedMemory(kSize));
   ASSERT_TRUE(memory);
 }
 
 #if !defined(OS_ANDROID)
 // Test forced purging.
-TEST(DiscardableMemoryTest, Purge) {
+TEST_P(DiscardableMemoryTest, Purge) {
   ASSERT_TRUE(DiscardableMemory::PurgeForTestingSupported());
 
-  const scoped_ptr<DiscardableMemory> memory(
-      DiscardableMemory::CreateLockedMemory(kSize));
+  const scoped_ptr<DiscardableMemory> memory(CreateLockedMemory(kSize));
   ASSERT_TRUE(memory);
   memory->Unlock();
 
   DiscardableMemory::PurgeForTesting();
-  EXPECT_EQ(DISCARDABLE_MEMORY_PURGED, memory->Lock());
+  EXPECT_EQ(DISCARDABLE_MEMORY_LOCK_STATUS_PURGED, memory->Lock());
 }
 #endif  // !OS_ANDROID
 
 #if !defined(NDEBUG) && !defined(OS_ANDROID)
 // Death tests are not supported with Android APKs.
-TEST(DiscardableMemoryTest, UnlockedMemoryAccessCrashesInDebugMode) {
-  const scoped_ptr<DiscardableMemory> memory(
-      DiscardableMemory::CreateLockedMemory(kSize));
+TEST_P(DiscardableMemoryTest, UnlockedMemoryAccessCrashesInDebugMode) {
+  const scoped_ptr<DiscardableMemory> memory(CreateLockedMemory(kSize));
   ASSERT_TRUE(memory);
   memory->Unlock();
   ASSERT_DEATH_IF_SUPPORTED(
       { *static_cast<int*>(memory->Memory()) = 0xdeadbeef; }, ".*");
 }
 #endif
 
+std::vector<DiscardableMemoryType> GetSupportedDiscardableMemoryTypes() {
+  std::vector<DiscardableMemoryType> supported_types;
+  DiscardableMemory::GetSupportedTypes(&supported_types);
+  return supported_types;
 }
+
+INSTANTIATE_TEST_CASE_P(
+    DiscardableMemoryTests,
+    DiscardableMemoryTest,
+    ::testing::ValuesIn(GetSupportedDiscardableMemoryTypes()));
+
+}  // namespace
+}  // namespace base