media/midi/midi_message_queue_unittest.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "media/midi/midi_message_queue.h"
   6
   7 #include "testing/gtest/include/gtest/gtest.h"
   8
   9 namespace media {
  10 namespace {
  11
  12 const uint8 kGMOn[] = { 0xf0, 0x7e, 0x7f, 0x09, 0x01, 0xf7 };
  13 const uint8 kGSOn[] = {
  14   0xf0, 0x41, 0x10, 0x42, 0x12, 0x40, 0x00, 0x7f, 0x00, 0x41, 0xf7,
  15 };
  16 const uint8 kNoteOn[] = { 0x90, 0x3c, 0x7f };
  17 const uint8 kNoteOnWithRunningStatus[] = {
  18   0x90, 0x3c, 0x7f, 0x3c, 0x7f, 0x3c, 0x7f,
  19 };
  20 const uint8 kChannelPressure[] = { 0xd0, 0x01 };
  21 const uint8 kChannelPressureWithRunningStatus[] = {
  22   0xd0, 0x01, 0x01, 0x01,
  23 };
  24 const uint8 kTimingClock[] = { 0xf8 };
  25 const uint8 kBrokenData1[] = { 0x90 };
  26 const uint8 kBrokenData2[] = { 0xf7 };
  27 const uint8 kBrokenData3[] = { 0xf2, 0x00 };
  28 const uint8 kDataByte0[] = { 0x00 };
  29
  30 template <typename T, size_t N>
  31 void Add(MidiMessageQueue* queue, const T(&array)[N]) {
  32   queue->Add(array, N);
  33 }
  34
  35 template <typename T, size_t N>
  36 ::testing::AssertionResult ExpectEqualSequence(
  37     const char* expr1, const char* expr2,
  38     const T(&expected)[N], const std::vector<T>& actual) {
  39   if (actual.size() != N) {
  40     return ::testing::AssertionFailure()
  41         << "expected: " << ::testing::PrintToString(expected)
  42         << ", actual: " << ::testing::PrintToString(actual);
  43   }
  44   for (size_t i = 0; i < N; ++i) {
  45     if (expected[i] != actual[i]) {
  46       return ::testing::AssertionFailure()
  47           << "expected: " << ::testing::PrintToString(expected)
  48           << ", actual: " << ::testing::PrintToString(actual);
  49     }
  50   }
  51   return ::testing::AssertionSuccess();
  52 }
  53
  54 #define EXPECT_MESSAGE(expected, actual)  \
  55   EXPECT_PRED_FORMAT2(ExpectEqualSequence, expected, actual)
  56
  57 TEST(MidiMessageQueueTest, EmptyData) {
  58   MidiMessageQueue queue(false);
  59   std::vector<uint8> message;
  60   queue.Get(&message);
  61   EXPECT_TRUE(message.empty());
  62 }
  63
  64 TEST(MidiMessageQueueTest, RunningStatusDisabled) {
  65   MidiMessageQueue queue(false);
  66   Add(&queue, kGMOn);
  67   Add(&queue, kBrokenData1);
  68   Add(&queue, kNoteOnWithRunningStatus);
  69   Add(&queue, kBrokenData2);
  70   Add(&queue, kChannelPressureWithRunningStatus);
  71   Add(&queue, kBrokenData3);
  72   Add(&queue, kNoteOn);
  73   Add(&queue, kBrokenData1);
  74   Add(&queue, kGSOn);
  75   Add(&queue, kBrokenData2);
  76   Add(&queue, kTimingClock);
  77   Add(&queue, kBrokenData3);
  78
  79   std::vector<uint8> message;
  80   queue.Get(&message);
  81   EXPECT_MESSAGE(kGMOn, message);
  82   queue.Get(&message);
  83   EXPECT_MESSAGE(kNoteOn, message) << "Running status should be ignored";
  84   queue.Get(&message);
  85   EXPECT_MESSAGE(kChannelPressure, message)
  86       << "Running status should be ignored";
  87   queue.Get(&message);
  88   EXPECT_MESSAGE(kNoteOn, message);
  89   queue.Get(&message);
  90   EXPECT_MESSAGE(kGSOn, message);
  91   queue.Get(&message);
  92   EXPECT_MESSAGE(kTimingClock, message);
  93   queue.Get(&message);
  94   EXPECT_TRUE(message.empty());
  95 }
  96
  97 TEST(MidiMessageQueueTest, RunningStatusEnabled) {
  98   MidiMessageQueue queue(true);
  99   Add(&queue, kGMOn);
 100   Add(&queue, kBrokenData1);
 101   Add(&queue, kNoteOnWithRunningStatus);
 102   Add(&queue, kBrokenData2);
 103   Add(&queue, kChannelPressureWithRunningStatus);
 104   Add(&queue, kBrokenData3);
 105   Add(&queue, kNoteOn);
 106   Add(&queue, kBrokenData1);
 107   Add(&queue, kGSOn);
 108   Add(&queue, kBrokenData2);
 109   Add(&queue, kTimingClock);
 110   Add(&queue, kDataByte0);
 111
 112   std::vector<uint8> message;
 113   queue.Get(&message);
 114   EXPECT_MESSAGE(kGMOn, message);
 115   queue.Get(&message);
 116   EXPECT_MESSAGE(kNoteOn, message);
 117   queue.Get(&message);
 118   EXPECT_MESSAGE(kNoteOn, message)
 119       << "Running status should be converted into a canonical MIDI message";
 120   queue.Get(&message);
 121   EXPECT_MESSAGE(kNoteOn, message)
 122       << "Running status should be converted into a canonical MIDI message";
 123   queue.Get(&message);
 124   EXPECT_MESSAGE(kChannelPressure, message);
 125   queue.Get(&message);
 126   EXPECT_MESSAGE(kChannelPressure, message)
 127       << "Running status should be converted into a canonical MIDI message";
 128   queue.Get(&message);
 129   EXPECT_MESSAGE(kChannelPressure, message)
 130       << "Running status should be converted into a canonical MIDI message";
 131   queue.Get(&message);
 132   EXPECT_MESSAGE(kNoteOn, message);
 133   queue.Get(&message);
 134   EXPECT_MESSAGE(kGSOn, message);
 135   queue.Get(&message);
 136   EXPECT_MESSAGE(kTimingClock, message);
 137   queue.Get(&message);
 138   EXPECT_TRUE(message.empty())
 139       << "Running status must not be applied to real time messages";
 140 }
 141
 142 TEST(MidiMessageQueueTest, RunningStatusEnabledWithRealTimeEvent) {
 143   MidiMessageQueue queue(true);
 144   const uint8 kNoteOnWithRunningStatusWithkTimingClock[] = {
 145     0x90, 0xf8, 0x3c, 0xf8, 0x7f, 0xf8, 0x3c, 0xf8, 0x7f, 0xf8, 0x3c, 0xf8,
 146     0x7f,
 147   };
 148   Add(&queue, kNoteOnWithRunningStatusWithkTimingClock);
 149   std::vector<uint8> message;
 150   queue.Get(&message);
 151   EXPECT_MESSAGE(kTimingClock, message);
 152   queue.Get(&message);
 153   EXPECT_MESSAGE(kTimingClock, message);
 154   queue.Get(&message);
 155   EXPECT_MESSAGE(kNoteOn, message);
 156   queue.Get(&message);
 157   EXPECT_MESSAGE(kTimingClock, message);
 158   queue.Get(&message);
 159   EXPECT_MESSAGE(kTimingClock, message);
 160   queue.Get(&message);
 161   EXPECT_MESSAGE(kNoteOn, message);
 162   queue.Get(&message);
 163   EXPECT_MESSAGE(kTimingClock, message);
 164   queue.Get(&message);
 165   EXPECT_MESSAGE(kTimingClock, message);
 166   queue.Get(&message);
 167   EXPECT_MESSAGE(kNoteOn, message);
 168   queue.Get(&message);
 169   EXPECT_TRUE(message.empty());
 170 }
 171
 172 }  // namespace
 173 }  // namespace media