| // Copyright 2022 The Dawn Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include <utility> |
| |
| #include "dawn/native/Blob.h" |
| #include "gmock/gmock.h" |
| #include "gtest/gtest.h" |
| |
| namespace dawn::native { |
| |
| namespace { |
| |
| // Test that a blob starts empty. |
| TEST(BlobTests, DefaultEmpty) { |
| Blob b; |
| EXPECT_TRUE(b.Empty()); |
| EXPECT_EQ(b.Data(), nullptr); |
| EXPECT_EQ(b.Size(), 0u); |
| } |
| |
| // Test that you can create a blob with a size in bytes and write/read its contents. |
| TEST(BlobTests, SizedCreation) { |
| Blob b = CreateBlob(10); |
| EXPECT_FALSE(b.Empty()); |
| EXPECT_EQ(b.Size(), 10u); |
| ASSERT_NE(b.Data(), nullptr); |
| // We should be able to copy 10 bytes into the blob. |
| char data[10] = {'1', '2', '3', '4', '5', '6', '7', '8', '9', '0'}; |
| memcpy(b.Data(), data, sizeof(data)); |
| // And retrieve the exact contents back. |
| EXPECT_EQ(memcmp(b.Data(), data, sizeof(data)), 0); |
| } |
| |
| // Test that you can create a zero-sized blob. |
| TEST(BlobTests, EmptySizedCreation) { |
| Blob b = CreateBlob(0); |
| EXPECT_TRUE(b.Empty()); |
| EXPECT_EQ(b.Data(), nullptr); |
| EXPECT_EQ(b.Size(), 0u); |
| } |
| |
| // Test that you can create a blob with UnsafeCreateWithDeleter, and the deleter is |
| // called on destruction. |
| TEST(BlobTests, UnsafeCreateWithDeleter) { |
| unsigned char data[13] = "hello world!"; |
| testing::StrictMock<testing::MockFunction<void()>> mockDeleter; |
| { |
| // Make a blob with a mock deleter. |
| Blob b = Blob::UnsafeCreateWithDeleter(data, sizeof(data), [&]() { mockDeleter.Call(); }); |
| // Check the contents. |
| EXPECT_FALSE(b.Empty()); |
| EXPECT_EQ(b.Size(), sizeof(data)); |
| ASSERT_EQ(b.Data(), data); |
| EXPECT_EQ(memcmp(b.Data(), data, sizeof(data)), 0); |
| |
| // |b| is deleted when this scope exits. |
| EXPECT_CALL(mockDeleter, Call()); |
| } |
| } |
| |
| // Test that you can create a blob with UnsafeCreateWithDeleter with zero size but non-null data. |
| // The deleter is still called on destruction, and the blob is normalized to be empty. |
| TEST(BlobTests, UnsafeCreateWithDeleterZeroSize) { |
| unsigned char data[13] = "hello world!"; |
| testing::StrictMock<testing::MockFunction<void()>> mockDeleter; |
| { |
| // Make a blob with a mock deleter. |
| Blob b = Blob::UnsafeCreateWithDeleter(data, 0, [&]() { mockDeleter.Call(); }); |
| // Check the contents. |
| EXPECT_TRUE(b.Empty()); |
| EXPECT_EQ(b.Size(), 0u); |
| // Data still points to the data. |
| EXPECT_EQ(b.Data(), data); |
| |
| // |b| is deleted when this scope exits. |
| EXPECT_CALL(mockDeleter, Call()); |
| } |
| } |
| |
| // Test that you can create a blob with UnsafeCreateWithDeleter that points to nothing. |
| // The deleter should still be called. |
| TEST(BlobTests, UnsafeCreateWithDeleterEmpty) { |
| testing::StrictMock<testing::MockFunction<void()>> mockDeleter; |
| { |
| // Make a blob with a mock deleter. |
| Blob b = Blob::UnsafeCreateWithDeleter(nullptr, 0, [&]() { mockDeleter.Call(); }); |
| // Check the contents. |
| EXPECT_TRUE(b.Empty()); |
| EXPECT_EQ(b.Size(), 0u); |
| EXPECT_EQ(b.Data(), nullptr); |
| |
| // |b| is deleted when this scope exits. |
| EXPECT_CALL(mockDeleter, Call()); |
| } |
| } |
| |
| // Test that move construction moves the data from one blob into the new one. |
| TEST(BlobTests, MoveConstruct) { |
| // Create the blob. |
| Blob b1 = CreateBlob(10); |
| char data[10] = {'1', '2', '3', '4', '5', '6', '7', '8', '9', '0'}; |
| memcpy(b1.Data(), data, sizeof(data)); |
| |
| // Move construct b2 from b1. |
| Blob b2(std::move(b1)); |
| |
| // Data should be moved. |
| EXPECT_FALSE(b2.Empty()); |
| EXPECT_EQ(b2.Size(), 10u); |
| ASSERT_NE(b2.Data(), nullptr); |
| EXPECT_EQ(memcmp(b2.Data(), data, sizeof(data)), 0); |
| } |
| |
| // Test that move assignment moves the data from one blob into another. |
| TEST(BlobTests, MoveAssign) { |
| // Create the blob. |
| Blob b1 = CreateBlob(10); |
| char data[10] = {'1', '2', '3', '4', '5', '6', '7', '8', '9', '0'}; |
| memcpy(b1.Data(), data, sizeof(data)); |
| |
| // Move assign b2 from b1. |
| Blob b2; |
| b2 = std::move(b1); |
| |
| // Data should be moved. |
| EXPECT_FALSE(b2.Empty()); |
| EXPECT_EQ(b2.Size(), 10u); |
| ASSERT_NE(b2.Data(), nullptr); |
| EXPECT_EQ(memcmp(b2.Data(), data, sizeof(data)), 0); |
| } |
| |
| // Test that move assignment can replace the contents of the moved-to blob. |
| TEST(BlobTests, MoveAssignOver) { |
| // Create the blob. |
| Blob b1 = CreateBlob(10); |
| char data[10] = {'1', '2', '3', '4', '5', '6', '7', '8', '9', '0'}; |
| memcpy(b1.Data(), data, sizeof(data)); |
| |
| // Create another blob with a mock deleter. |
| testing::StrictMock<testing::MockFunction<void()>> mockDeleter; |
| Blob b2 = Blob::UnsafeCreateWithDeleter(nullptr, 0, [&]() { mockDeleter.Call(); }); |
| |
| // Move b1 into b2, replacing b2's contents, and expect the deleter to be called. |
| EXPECT_CALL(mockDeleter, Call()); |
| b2 = std::move(b1); |
| |
| // Data should be moved. |
| EXPECT_FALSE(b2.Empty()); |
| EXPECT_EQ(b2.Size(), 10u); |
| ASSERT_NE(b2.Data(), nullptr); |
| EXPECT_EQ(memcmp(b2.Data(), data, sizeof(data)), 0); |
| } |
| |
| } // namespace |
| |
| } // namespace dawn::native |