| // Copyright 2019 Google LLC |
| // |
| // 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 |
| // |
| // https://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 "content_stream.h" |
| |
| #include "string_buffer.h" |
| |
| #include "gmock/gmock.h" |
| #include "gtest/gtest.h" |
| |
| #include <memory> |
| |
| namespace { |
| |
| // SingleByteReader wraps a dap::Reader to only provide a single byte for each |
| // read() call, regardless of the number of bytes actually requested. |
| class SingleByteReader : public dap::Reader { |
| public: |
| SingleByteReader(std::unique_ptr<dap::Reader>&& inner) |
| : inner(std::move(inner)) {} |
| |
| bool isOpen() override { return inner->isOpen(); } |
| void close() override { return inner->close(); } |
| size_t read(void* buffer, size_t) override { return inner->read(buffer, 1); }; |
| |
| private: |
| std::unique_ptr<dap::Reader> inner; |
| }; |
| |
| } // namespace |
| |
| TEST(ContentStreamTest, Write) { |
| auto sb = dap::StringBuffer::create(); |
| auto ptr = sb.get(); |
| dap::ContentWriter cw(std::move(sb)); |
| cw.write("Content payload number one"); |
| cw.write("Content payload number two"); |
| cw.write("Content payload number three"); |
| ASSERT_EQ(ptr->string(), |
| "Content-Length: 26\r\n\r\nContent payload number one" |
| "Content-Length: 26\r\n\r\nContent payload number two" |
| "Content-Length: 28\r\n\r\nContent payload number three"); |
| } |
| |
| TEST(ContentStreamTest, Read) { |
| auto sb = dap::StringBuffer::create(); |
| sb->write("Content-Length: 26\r\n\r\nContent payload number one"); |
| sb->write("some unrecognised garbage"); |
| sb->write("Content-Length: 26\r\n\r\nContent payload number two"); |
| sb->write("some more unrecognised garbage"); |
| sb->write("Content-Length: 28\r\n\r\nContent payload number three"); |
| dap::ContentReader cs(std::move(sb)); |
| ASSERT_EQ(cs.read(), "Content payload number one"); |
| ASSERT_EQ(cs.read(), "Content payload number two"); |
| ASSERT_EQ(cs.read(), "Content payload number three"); |
| ASSERT_EQ(cs.read(), ""); |
| } |
| |
| TEST(ContentStreamTest, ShortRead) { |
| auto sb = dap::StringBuffer::create(); |
| sb->write("Content-Length: 26\r\n\r\nContent payload number one"); |
| sb->write("some unrecognised garbage"); |
| sb->write("Content-Length: 26\r\n\r\nContent payload number two"); |
| sb->write("some more unrecognised garbage"); |
| sb->write("Content-Length: 28\r\n\r\nContent payload number three"); |
| dap::ContentReader cs( |
| std::unique_ptr<SingleByteReader>(new SingleByteReader(std::move(sb)))); |
| ASSERT_EQ(cs.read(), "Content payload number one"); |
| ASSERT_EQ(cs.read(), "Content payload number two"); |
| ASSERT_EQ(cs.read(), "Content payload number three"); |
| ASSERT_EQ(cs.read(), ""); |
| } |
| |
| TEST(ContentStreamTest, PartialReadAndParse) { |
| auto sb = std::make_shared<dap::StringBuffer>(); |
| dap::ContentReader cs(sb); |
| sb->write("Content"); |
| ASSERT_EQ(cs.read(), ""); |
| sb->write("-Length: "); |
| ASSERT_EQ(cs.read(), ""); |
| sb->write("26"); |
| ASSERT_EQ(cs.read(), ""); |
| sb->write("\r\n\r\n"); |
| ASSERT_EQ(cs.read(), ""); |
| sb->write("Content payload number one"); |
| ASSERT_EQ(cs.read(), "Content payload number one"); |
| ASSERT_EQ(cs.read(), ""); |
| } |