| /* |
| * Copyright 2011 Google Inc. |
| * |
| * 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. |
| */ |
| // Author: abliss@google.com (Adam Bliss) |
| |
| #include "net/instaweb/spriter/libpng_image_library.h" |
| #include "pagespeed/kernel/base/gtest.h" |
| #include "pagespeed/kernel/base/scoped_ptr.h" |
| #include "pagespeed/kernel/base/string_util.h" |
| |
| namespace { |
| |
| const char kTestData[] = "/net/instaweb/rewriter/testdata/"; |
| const char kCuppa[] = "Cuppa.png"; |
| const char kBikeCrash[] = "BikeCrashIcn.png"; |
| |
| } // namespace |
| |
| namespace net_instaweb { |
| namespace spriter { |
| |
| class LibpngImageLibraryTest : public testing::Test { |
| protected: |
| class LogDelegate : public ImageLibraryInterface::Delegate { |
| virtual void OnError(const GoogleString& error) const { |
| ASSERT_TRUE(false) << "Unexpected error: " << error; |
| } |
| }; |
| virtual void SetUp() { |
| delegate_.reset(new LogDelegate()); |
| mkdir(GTestTempDir().c_str(), 0777); |
| src_library_.reset(new LibpngImageLibrary(StrCat(GTestSrcDir(), kTestData), |
| StrCat(GTestTempDir(), "/"), delegate_.get())); |
| tmp_library_.reset(new LibpngImageLibrary(StrCat(GTestTempDir(), "/"), |
| StrCat(GTestTempDir(), "/"), delegate_.get())); |
| } |
| ImageLibraryInterface::Image* ReadFromFile(const StringPiece& filename) { |
| return src_library_->ReadFromFile(filename.as_string()); |
| } |
| ImageLibraryInterface::Canvas* CreateCanvas(int width, int height) { |
| return src_library_->CreateCanvas(width, height); |
| } |
| ImageLibraryInterface::Image* WriteAndRead(ImageLibraryInterface::Canvas* c) { |
| bool success = c->WriteToFile("out.png", PNG); |
| return success ? tmp_library_->ReadFromFile("out.png") : NULL; |
| } |
| |
| // A library that reads in our test source data and writes in our temp dir. |
| scoped_ptr<LibpngImageLibrary> src_library_; |
| // A library that reads and writes in our temp dir. |
| scoped_ptr<LibpngImageLibrary> tmp_library_; |
| scoped_ptr<LogDelegate> delegate_; |
| }; |
| |
| |
| TEST_F(LibpngImageLibraryTest, TestCompose) { |
| // 65x70 |
| scoped_ptr<ImageLibraryInterface::Image> image1(ReadFromFile(kCuppa)); |
| // 100x100 |
| scoped_ptr<ImageLibraryInterface::Image> image2(ReadFromFile(kBikeCrash)); |
| ASSERT_TRUE(image1.get() != NULL); |
| ASSERT_TRUE(image2.get() != NULL); |
| scoped_ptr<ImageLibraryInterface::Canvas> canvas(CreateCanvas(100, 170)); |
| ASSERT_TRUE(canvas != NULL); |
| ASSERT_TRUE(canvas->DrawImage(image1.get(), 0, 0)); |
| ASSERT_TRUE(canvas->DrawImage(image2.get(), 0, 70)); |
| ASSERT_TRUE(canvas->WriteToFile("out.png", PNG)); |
| scoped_ptr<ImageLibraryInterface::Image> image3(WriteAndRead(canvas.get())); |
| ASSERT_TRUE(image3.get() != NULL); |
| int width, height; |
| ASSERT_TRUE(image3->GetDimensions(&width, &height)); |
| EXPECT_EQ(100, width); |
| EXPECT_EQ(170, height); |
| } |
| |
| } // namespace spriter |
| } // namespace net_instaweb |