Replace blink::WebDiscardableMemory with base::DiscardableMemory.

third_party/WebKit/Source/platform/PurgeableVectorTest.cpp

 /*
  * Copyright (C) 2014 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 12 matching lines @@
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "platform/PurgeableVector.h"
 
-#include "platform/testing/TestingPlatformSupport.h"
-#include "public/platform/WebDiscardableMemory.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "wtf/Vector.h"
 #include <algorithm>
 #include <cstdlib>
 
 namespace blink {
 
 const size_t kTestSize = 32 * 1024;
 
-enum DiscardableMemorySupport {
-    DontSupportDiscardableMemory,
-    SupportDiscardableMemory,
+class PurgeableVectorTestWithDiscardableMemory : public testing::TestWithParam<PurgeableVector::PurgeableOption> {
 };
 
-class PurgeableVectorTestWithPlatformSupport : public testing::TestWithParam<DiscardableMemorySupport> {
-public:
-    PurgeableVectorTestWithPlatformSupport() : m_testingPlatformSupport(makeTestingPlatformSupportConfig()) { }
-
-protected:
-    bool isDiscardableMemorySupported() const { return GetParam() == SupportDiscardableMemory; }
-
-    TestingPlatformSupport::Config makeTestingPlatformSupportConfig() const
-    {
-        TestingPlatformSupport::Config config;
-        config.hasDiscardableMemorySupport = isDiscardableMemorySupported();
-        return config;
-    }
-
-    PurgeableVector::PurgeableOption makePurgeableOption() const
-    {
-        return isDiscardableMemorySupported() ? PurgeableVector::Purgeable : PurgeableVector::NotPurgeable;
-    }
-
-private:
-    TestingPlatformSupport m_testingPlatformSupport;
-};
-
-TEST_P(PurgeableVectorTestWithPlatformSupport, grow)
+TEST_P(PurgeableVectorTestWithDiscardableMemory, grow)
 {
-    PurgeableVector purgeableVector(makePurgeableOption());
+    PurgeableVector purgeableVector(GetParam());
     purgeableVector.grow(kTestSize);
     ASSERT_EQ(kTestSize, purgeableVector.size());
     // Make sure the underlying buffer was actually (re)allocated.
     memset(purgeableVector.data(), 0, purgeableVector.size());
 }
 
-TEST_P(PurgeableVectorTestWithPlatformSupport, clear)
+TEST_P(PurgeableVectorTestWithDiscardableMemory, clear)
 {
     Vector<char> testData(kTestSize);
     std::generate(testData.begin(), testData.end(), &std::rand);
 
-    PurgeableVector purgeableVector(makePurgeableOption());
+    PurgeableVector purgeableVector(GetParam());
     purgeableVector.append(testData.data(), testData.size());
     EXPECT_EQ(testData.size(), purgeableVector.size());
 
     purgeableVector.clear();
     EXPECT_EQ(0U, purgeableVector.size());
     EXPECT_EQ(0, purgeableVector.data());
 }
 
-TEST_P(PurgeableVectorTestWithPlatformSupport, clearDoesNotResetLockCounter)
+TEST_P(PurgeableVectorTestWithDiscardableMemory, clearDoesNotResetLockCounter)
 {
-    PurgeableVector purgeableVector(makePurgeableOption());
+    PurgeableVector purgeableVector(GetParam());
     purgeableVector.clear();
     EXPECT_TRUE(purgeableVector.isLocked());
     purgeableVector.unlock();
     EXPECT_FALSE(purgeableVector.isLocked());
 }
 
-TEST_P(PurgeableVectorTestWithPlatformSupport, reserveCapacityDoesNotChangeSize)
+TEST_P(PurgeableVectorTestWithDiscardableMemory, reserveCapacityDoesNotChangeSize)
 {
-    PurgeableVector purgeableVector(makePurgeableOption());
+    PurgeableVector purgeableVector(GetParam());
     EXPECT_EQ(0U, purgeableVector.size());
     purgeableVector.reserveCapacity(kTestSize);
     EXPECT_EQ(0U, purgeableVector.size());
 }
 
-TEST_P(PurgeableVectorTestWithPlatformSupport, multipleAppends)
+TEST_P(PurgeableVectorTestWithDiscardableMemory, multipleAppends)
 {
     Vector<char> testData(kTestSize);
     std::generate(testData.begin(), testData.end(), &std::rand);
 
-    PurgeableVector purgeableVector(makePurgeableOption());
+    PurgeableVector purgeableVector(GetParam());
     // Force an allocation.
     const char kSmallString[] = "hello";
     purgeableVector.append(kSmallString, sizeof(kSmallString));
     const char* const data = purgeableVector.data();
 
     // Append all the testing data in 4 iterations. The |data| pointer should
     // have been changed at the end of the unit test due to reallocations.
     const size_t kIterationCount = 4;
     ASSERT_EQ(0U, testData.size() % kIterationCount);
     for (size_t i = 0; i < kIterationCount; ++i) {
         const char* const testDataStart = testData.data() + i * (testData.size() / kIterationCount);
         purgeableVector.append(testDataStart, testData.size() / kIterationCount);
         ASSERT_EQ((i + 1) * testData.size() / kIterationCount, purgeableVector.size() - sizeof(kSmallString));
     }
 
     ASSERT_EQ(sizeof(kSmallString) + testData.size(), purgeableVector.size());
     EXPECT_NE(data, purgeableVector.data());
     EXPECT_EQ(0, memcmp(purgeableVector.data() + sizeof(kSmallString), testData.data(), testData.size()));
 }
 
-TEST_P(PurgeableVectorTestWithPlatformSupport, multipleAppendsAfterReserveCapacity)
+TEST_P(PurgeableVectorTestWithDiscardableMemory, multipleAppendsAfterReserveCapacity)
 {
     Vector<char> testData(kTestSize);
     std::generate(testData.begin(), testData.end(), &std::rand);
 
-    PurgeableVector purgeableVector(makePurgeableOption());
+    PurgeableVector purgeableVector(GetParam());
     purgeableVector.reserveCapacity(testData.size());
     const char* const data = purgeableVector.data();
 
     // The |data| pointer should be unchanged at the end of the unit test
     // meaning that there should not have been any reallocation.
     const size_t kIterationCount = 4;
     ASSERT_EQ(0U, testData.size() % kIterationCount);
     for (size_t i = 0; i < kIterationCount; ++i) {
         const char* const testDataStart = testData.data() + i * (testData.size() / kIterationCount);
         purgeableVector.append(testDataStart, testData.size() / kIterationCount);
         ASSERT_EQ((i + 1) * testData.size() / kIterationCount, purgeableVector.size());
     }
 
     ASSERT_EQ(testData.size(), purgeableVector.size());
     EXPECT_EQ(data, purgeableVector.data());
     EXPECT_EQ(0, memcmp(purgeableVector.data(), testData.data(), testData.size()));
 }
 
-TEST_P(PurgeableVectorTestWithPlatformSupport, reserveCapacityUsesExactCapacityWhenVectorIsEmpty)
+TEST_P(PurgeableVectorTestWithDiscardableMemory, reserveCapacityUsesExactCapacityWhenVectorIsEmpty)
 {
     Vector<char> testData(kTestSize);
     std::generate(testData.begin(), testData.end(), &std::rand);
 
-    PurgeableVector purgeableVector(makePurgeableOption());
+    PurgeableVector purgeableVector(GetParam());
     purgeableVector.reserveCapacity(kTestSize);
     const char* const data = purgeableVector.data();
 
     purgeableVector.append(testData.data(), testData.size());
     EXPECT_EQ(data, purgeableVector.data());
     EXPECT_EQ(0, memcmp(purgeableVector.data(), testData.data(), testData.size()));
 
     // This test is not reliable if the PurgeableVector uses a plain WTF::Vector
     // for storage, as it does if discardable memory is not supported; the vectors
     // capacity will always be expanded to fill the PartitionAlloc bucket.
-    if (isDiscardableMemorySupported()) {
+    if (GetParam() == PurgeableVector::Purgeable) {
         // Appending one extra byte should cause a reallocation since the first
         // allocation happened while the purgeable vector was empty. This behavior
         // helps us guarantee that there is no memory waste on very small vectors
         // (which SharedBuffer requires).
         purgeableVector.append(testData.data(), 1);
         EXPECT_NE(data, purgeableVector.data());
     }
 }
 
-TEST_P(PurgeableVectorTestWithPlatformSupport, appendReservesCapacityIfNeeded)
+TEST_P(PurgeableVectorTestWithDiscardableMemory, appendReservesCapacityIfNeeded)
 {
     Vector<char> testData(kTestSize);
     std::generate(testData.begin(), testData.end(), &std::rand);
 
-    PurgeableVector purgeableVector(makePurgeableOption());
+    PurgeableVector purgeableVector(GetParam());
     // No reserveCapacity().
     ASSERT_FALSE(purgeableVector.data());
 
     purgeableVector.append(testData.data(), testData.size());
     ASSERT_EQ(testData.size(), purgeableVector.size());
     ASSERT_EQ(0, memcmp(purgeableVector.data(), testData.data(), testData.size()));
 }
 
-TEST_P(PurgeableVectorTestWithPlatformSupport, adopt)
+TEST_P(PurgeableVectorTestWithDiscardableMemory, adopt)
 {
     Vector<char> testData(kTestSize);
     std::generate(testData.begin(), testData.end(), &std::rand);
     const Vector<char> testDataCopy(testData);
     const char* const testDataPtr = testData.data();
 
-    PurgeableVector purgeableVector(makePurgeableOption());
+    PurgeableVector purgeableVector(GetParam());
     purgeableVector.adopt(testData);
     EXPECT_TRUE(testData.isEmpty());
     EXPECT_EQ(kTestSize, purgeableVector.size());
     ASSERT_EQ(0, memcmp(purgeableVector.data(), testDataCopy.data(), testDataCopy.size()));
 
-    if (isDiscardableMemorySupported()) {
+    if (GetParam() == PurgeableVector::Purgeable) {
         // An extra discardable memory allocation + memcpy() should have happened.
         EXPECT_NE(testDataPtr, purgeableVector.data());
     } else {
         // Vector::swap() should have been used.
         EXPECT_EQ(testDataPtr, purgeableVector.data());
     }
 }
 
-TEST_P(PurgeableVectorTestWithPlatformSupport, adoptEmptyVector)
+TEST_P(PurgeableVectorTestWithDiscardableMemory, adoptEmptyVector)
 {
     Vector<char> testData;
-    PurgeableVector purgeableVector(makePurgeableOption());
+    PurgeableVector purgeableVector(GetParam());
     purgeableVector.adopt(testData);
 }
 
-TEST(PurgeableVectorTestWithPlatformSupport, adoptDiscardsPreviousData)
+TEST(PurgeableVectorTest, adoptDiscardsPreviousData)
 {
     Vector<char> testData;
     std::generate(testData.begin(), testData.end(), &std::rand);
 
     PurgeableVector purgeableVector(PurgeableVector::NotPurgeable);
     static const char smallString[] = "hello";
     purgeableVector.append(smallString, sizeof(smallString));
     ASSERT_EQ(0, memcmp(purgeableVector.data(), smallString, sizeof(smallString)));
 
     purgeableVector.adopt(testData);
     EXPECT_EQ(testData.size(), purgeableVector.size());
     ASSERT_EQ(0, memcmp(purgeableVector.data(), testData.data(), testData.size()));
 }
 
-TEST_P(PurgeableVectorTestWithPlatformSupport, unlockWithoutHintAtConstruction)
+TEST(PurgeableVectorTest, unlockWithoutHintAtConstruction)
 {
     Vector<char> testData(30000);
     std::generate(testData.begin(), testData.end(), &std::rand);
 
     unsigned length = testData.size();
     PurgeableVector purgeableVector(PurgeableVector::NotPurgeable);
     purgeableVector.append(testData.data(), length);
     ASSERT_EQ(length, purgeableVector.size());
     const char* data = purgeableVector.data();
 
     purgeableVector.unlock();
 
     // Note that the purgeable vector must be locked before calling data().
     const bool wasPurged = !purgeableVector.lock();
-    if (isDiscardableMemorySupported()) {
-        // The implementation of purgeable memory used for testing always purges data upon unlock().
-        EXPECT_TRUE(wasPurged);
-    }
 
-    if (isDiscardableMemorySupported()) {
-        // The data should have been moved from the heap-allocated vector to a purgeable buffer.
-        ASSERT_NE(data, purgeableVector.data());
-    } else {
-        ASSERT_EQ(data, purgeableVector.data());
-    }
+    // The implementation of purgeable memory used for testing always purges data upon unlock().
+    EXPECT_TRUE(wasPurged);
+
+    // The data should have been moved from the heap-allocated vector to a purgeable buffer.
+    ASSERT_NE(data, purgeableVector.data());
 
     if (!wasPurged)
         ASSERT_EQ(0, memcmp(purgeableVector.data(), testData.data(), length));
 }
 
 TEST(PurgeableVectorTest, unlockOnEmptyPurgeableVector)
 {
     PurgeableVector purgeableVector;
     ASSERT_EQ(0U, purgeableVector.size());
     purgeableVector.unlock();
     ASSERT_FALSE(purgeableVector.isLocked());
 }
 
-TEST_P(PurgeableVectorTestWithPlatformSupport, unlockOnPurgeableVectorWithPurgeableHint)
+TEST(PurgeableVectorTest, unlockOnPurgeableVectorWithPurgeableHint)
 {
     Vector<char> testData(kTestSize);
     std::generate(testData.begin(), testData.end(), &std::rand);
 
     PurgeableVector purgeableVector;
     purgeableVector.append(testData.data(), kTestSize);
     const char* const data = purgeableVector.data();
 
     // unlock() should happen in place, i.e. without causing any reallocation.
     // Note that the instance must be locked when data() is called.
     purgeableVector.unlock();
     EXPECT_FALSE(purgeableVector.isLocked());
     purgeableVector.lock();
     EXPECT_TRUE(purgeableVector.isLocked());
     EXPECT_EQ(data, purgeableVector.data());
 }
 
-TEST_P(PurgeableVectorTestWithPlatformSupport, lockingUsesACounter)
+TEST(PurgeableVectorTest, lockingUsesACounter)
 {
     Vector<char> testData(kTestSize);
     std::generate(testData.begin(), testData.end(), &std::rand);
 
     PurgeableVector purgeableVector(PurgeableVector::NotPurgeable);
     purgeableVector.append(testData.data(), testData.size());
     ASSERT_EQ(testData.size(), purgeableVector.size());
 
-    ASSERT_TRUE(purgeableVector.isLocked()); // SharedBuffer is locked at creation.
+    ASSERT_TRUE(purgeableVector.isLocked()); // PurgeableVector is locked at creation.
     ASSERT_TRUE(purgeableVector.lock()); // Add an extra lock.
     ASSERT_TRUE(purgeableVector.isLocked());
 
     purgeableVector.unlock();
     ASSERT_TRUE(purgeableVector.isLocked());
 
     purgeableVector.unlock();
     ASSERT_FALSE(purgeableVector.isLocked());
 
     if (purgeableVector.lock())
         ASSERT_EQ(0, memcmp(purgeableVector.data(), testData.data(), testData.size()));
 }
 
-// Instantiates all the unit tests using the SharedBufferTestWithPlatformSupport fixture both with
-// and without discardable memory support.
-INSTANTIATE_TEST_CASE_P(testsWithPlatformSetUp, PurgeableVectorTestWithPlatformSupport,
-    ::testing::Values(DontSupportDiscardableMemory, SupportDiscardableMemory));
+// Instantiates all the unit tests using the PurgeableVectorTestWithDiscardableMemory
+// fixture both with and without using discardable memory support.
+INSTANTIATE_TEST_CASE_P(, PurgeableVectorTestWithDiscardableMemory,
+    ::testing::Values(PurgeableVector::NotPurgeable, PurgeableVector::Purgeable));
 
 } // namespace blink