| // Copyright 2013 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "media/midi/message_util.h" |
| |
| #include <stdint.h> |
| |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace midi { |
| namespace { |
| |
| const uint8_t kGMOn[] = {0xf0, 0x7e, 0x7f, 0x09, 0x01, 0xf7}; |
| const uint8_t kGSOn[] = { |
| 0xf0, 0x41, 0x10, 0x42, 0x12, 0x40, 0x00, 0x7f, 0x00, 0x41, 0xf7, |
| }; |
| const uint8_t kNoteOn[] = {0x90, 0x3c, 0x7f}; |
| const uint8_t kNoteOnWithRunningStatus[] = { |
| 0x90, 0x3c, 0x7f, 0x3c, 0x7f, 0x3c, 0x7f, |
| }; |
| const uint8_t kNoteOnWithRealTimeClock[] = { |
| 0x90, 0xf8, 0x3c, 0x7f, 0x90, 0xf8, 0x3c, 0xf8, 0x7f, 0xf8, |
| }; |
| const uint8_t kGMOnWithRealTimeClock[] = { |
| 0xf0, 0xf8, 0x7e, 0x7f, 0x09, 0x01, 0xf8, 0xf7, |
| }; |
| const uint8_t kSystemCommonMessageReserved1[] = {0xf4}; |
| const uint8_t kSystemCommonMessageReserved2[] = {0xf5}; |
| const uint8_t kSystemCommonMessageTuneRequest[] = {0xf6}; |
| const uint8_t kChannelPressure[] = {0xd0, 0x01}; |
| const uint8_t kChannelPressureWithRunningStatus[] = {0xd0, 0x01, 0x01, 0x01}; |
| const uint8_t kTimingClock[] = {0xf8}; |
| const uint8_t kBrokenData1[] = {0x90}; |
| const uint8_t kBrokenData2[] = {0xf7}; |
| const uint8_t kBrokenData3[] = {0xf2, 0x00}; |
| const uint8_t kDataByte0[] = {0x00}; |
| |
| template <typename T, size_t N> |
| const std::vector<T> AsVector(const T (&data)[N]) { |
| std::vector<T> buffer; |
| buffer.insert(buffer.end(), data, data + N); |
| return buffer; |
| } |
| |
| template <typename T, size_t N> |
| void PushToVector(const T (&data)[N], std::vector<T>* buffer) { |
| buffer->insert(buffer->end(), data, data + N); |
| } |
| |
| TEST(MidiMessageUtilTest, GetMessageLength) { |
| // Check basic functionarity |
| EXPECT_EQ(std::size(kNoteOn), GetMessageLength(kNoteOn[0])); |
| EXPECT_EQ(std::size(kChannelPressure), GetMessageLength(kChannelPressure[0])); |
| EXPECT_EQ(std::size(kTimingClock), GetMessageLength(kTimingClock[0])); |
| EXPECT_EQ(std::size(kSystemCommonMessageTuneRequest), |
| GetMessageLength(kSystemCommonMessageTuneRequest[0])); |
| |
| // SysEx message should be mapped to 0-length |
| EXPECT_EQ(0u, GetMessageLength(kGMOn[0])); |
| |
| // Any reserved message should be mapped to 0-length |
| EXPECT_EQ(0u, GetMessageLength(kSystemCommonMessageReserved1[0])); |
| EXPECT_EQ(0u, GetMessageLength(kSystemCommonMessageReserved2[0])); |
| |
| // Any data byte should be mapped to 0-length |
| EXPECT_EQ(0u, GetMessageLength(kGMOn[1])); |
| EXPECT_EQ(0u, GetMessageLength(kNoteOn[1])); |
| EXPECT_EQ(0u, GetMessageLength(kChannelPressure[1])); |
| } |
| |
| TEST(MidiMessageUtilTest, IsValidWebMIDIData) { |
| // Test single event scenario |
| EXPECT_TRUE(IsValidWebMIDIData(AsVector(kGMOn))); |
| EXPECT_TRUE(IsValidWebMIDIData(AsVector(kGSOn))); |
| EXPECT_TRUE(IsValidWebMIDIData(AsVector(kNoteOn))); |
| EXPECT_TRUE(IsValidWebMIDIData(AsVector(kChannelPressure))); |
| EXPECT_TRUE(IsValidWebMIDIData(AsVector(kTimingClock))); |
| EXPECT_FALSE(IsValidWebMIDIData(AsVector(kBrokenData1))); |
| EXPECT_FALSE(IsValidWebMIDIData(AsVector(kBrokenData2))); |
| EXPECT_FALSE(IsValidWebMIDIData(AsVector(kBrokenData3))); |
| EXPECT_FALSE(IsValidWebMIDIData(AsVector(kDataByte0))); |
| |
| // MIDI running status should be disallowed |
| EXPECT_FALSE(IsValidWebMIDIData(AsVector(kNoteOnWithRunningStatus))); |
| EXPECT_FALSE(IsValidWebMIDIData(AsVector(kChannelPressureWithRunningStatus))); |
| |
| // Multiple messages are allowed as long as each of them is complete. |
| { |
| std::vector<uint8_t> buffer; |
| PushToVector(kGMOn, &buffer); |
| PushToVector(kNoteOn, &buffer); |
| PushToVector(kGSOn, &buffer); |
| PushToVector(kTimingClock, &buffer); |
| PushToVector(kNoteOn, &buffer); |
| EXPECT_TRUE(IsValidWebMIDIData(buffer)); |
| PushToVector(kBrokenData1, &buffer); |
| EXPECT_FALSE(IsValidWebMIDIData(buffer)); |
| } |
| |
| // MIDI realtime message can be placed at any position. |
| EXPECT_TRUE(IsValidWebMIDIData(AsVector(kNoteOnWithRealTimeClock))); |
| EXPECT_TRUE(IsValidWebMIDIData(AsVector(kGMOnWithRealTimeClock))); |
| } |
| |
| } // namespace |
| } // namespace midi |