media/midi/usb_midi_descriptor_parser_unittest.cc

   1 // Copyright 2014 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/usb_midi_descriptor_parser.h"
   6
   7 #include "testing/gtest/include/gtest/gtest.h"
   8
   9 namespace media {
  10 namespace midi {
  11
  12 namespace {
  13
  14 TEST(UsbMidiDescriptorParserTest, ParseEmpty) {
  15   UsbMidiDescriptorParser parser;
  16   std::vector<UsbMidiJack> jacks;
  17   EXPECT_TRUE(parser.Parse(nullptr, nullptr, 0, &jacks));
  18   EXPECT_TRUE(jacks.empty());
  19 }
  20
  21 TEST(UsbMidiDescriptorParserTest, InvalidSize) {
  22   UsbMidiDescriptorParser parser;
  23   std::vector<UsbMidiJack> jacks;
  24   uint8 data[] = {0x04};
  25   EXPECT_FALSE(parser.Parse(nullptr, data, arraysize(data), &jacks));
  26   EXPECT_TRUE(jacks.empty());
  27 }
  28
  29 TEST(UsbMidiDescriptorParserTest, NonExistingJackIsAssociated) {
  30   UsbMidiDescriptorParser parser;
  31   std::vector<UsbMidiJack> jacks;
  32   // Jack id=1 is found in a CS_ENDPOINT descriptor, but there is no definition
  33   // for the jack.
  34   uint8 data[] = {
  35     0x09, 0x04, 0x01, 0x00, 0x02, 0x01, 0x03, 0x00, 0x00, 0x07,
  36     0x24, 0x01, 0x00, 0x01, 0x07, 0x00, 0x05, 0x25, 0x01, 0x01,
  37     0x01,
  38   };
  39   EXPECT_FALSE(parser.Parse(nullptr, data, arraysize(data), &jacks));
  40   EXPECT_TRUE(jacks.empty());
  41 }
  42
  43 TEST(UsbMidiDescriptorParserTest,
  44      JacksShouldBeIgnoredWhenParserIsNotParsingMidiInterface) {
  45   UsbMidiDescriptorParser parser;
  46   std::vector<UsbMidiJack> jacks;
  47   // a NON-MIDI INTERFACE descriptor followed by ENDPOINT and CS_ENDPOINT
  48   // descriptors (Compare with the previous test case).
  49   uint8 data[] = {
  50     0x09, 0x04, 0x01, 0x00, 0x02, 0x01, 0x02, 0x00, 0x00, 0x07,
  51     0x24, 0x01, 0x00, 0x01, 0x07, 0x00, 0x05, 0x25, 0x01, 0x01,
  52     0x01,
  53   };
  54   EXPECT_TRUE(parser.Parse(nullptr, data, arraysize(data), &jacks));
  55   EXPECT_TRUE(jacks.empty());
  56 }
  57
  58 TEST(UsbMidiDescriptorParserTest, Parse) {
  59   UsbMidiDescriptorParser parser;
  60   std::vector<UsbMidiJack> jacks;
  61   // A complete device descriptor.
  62   uint8 data[] = {
  63     0x12, 0x01, 0x10, 0x01, 0x00, 0x00, 0x00, 0x08, 0x86, 0x1a,
  64     0x2d, 0x75, 0x54, 0x02, 0x00, 0x02, 0x00, 0x01, 0x09, 0x02,
  65     0x75, 0x00, 0x02, 0x01, 0x00, 0x80, 0x30, 0x09, 0x04, 0x00,
  66     0x00, 0x00, 0x01, 0x01, 0x00, 0x00, 0x09, 0x24, 0x01, 0x00,
  67     0x01, 0x09, 0x00, 0x01, 0x01, 0x09, 0x04, 0x01, 0x00, 0x02,
  68     0x01, 0x03, 0x00, 0x00, 0x07, 0x24, 0x01, 0x00, 0x01, 0x51,
  69     0x00, 0x06, 0x24, 0x02, 0x01, 0x02, 0x00, 0x06, 0x24, 0x02,
  70     0x01, 0x03, 0x00, 0x06, 0x24, 0x02, 0x02, 0x06, 0x00, 0x09,
  71     0x24, 0x03, 0x01, 0x07, 0x01, 0x06, 0x01, 0x00, 0x09, 0x24,
  72     0x03, 0x02, 0x04, 0x01, 0x02, 0x01, 0x00, 0x09, 0x24, 0x03,
  73     0x02, 0x05, 0x01, 0x03, 0x01, 0x00, 0x09, 0x05, 0x02, 0x02,
  74     0x20, 0x00, 0x00, 0x00, 0x00, 0x06, 0x25, 0x01, 0x02, 0x02,
  75     0x03, 0x09, 0x05, 0x82, 0x02, 0x20, 0x00, 0x00, 0x00, 0x00,
  76     0x05, 0x25, 0x01, 0x01, 0x07,
  77   };
  78   EXPECT_TRUE(parser.Parse(nullptr, data, arraysize(data), &jacks));
  79   ASSERT_EQ(3u, jacks.size());
  80
  81   EXPECT_EQ(2u, jacks[0].jack_id);
  82   EXPECT_EQ(0u, jacks[0].cable_number);
  83   EXPECT_EQ(2u, jacks[0].endpoint_number());
  84   EXPECT_EQ(UsbMidiJack::DIRECTION_OUT, jacks[0].direction());
  85   EXPECT_EQ(nullptr, jacks[0].device);
  86
  87   EXPECT_EQ(3u, jacks[1].jack_id);
  88   EXPECT_EQ(1u, jacks[1].cable_number);
  89   EXPECT_EQ(2u, jacks[1].endpoint_number());
  90   EXPECT_EQ(UsbMidiJack::DIRECTION_OUT, jacks[1].direction());
  91   EXPECT_EQ(nullptr, jacks[1].device);
  92
  93   EXPECT_EQ(7u, jacks[2].jack_id);
  94   EXPECT_EQ(0u, jacks[2].cable_number);
  95   EXPECT_EQ(2u, jacks[2].endpoint_number());
  96   EXPECT_EQ(UsbMidiJack::DIRECTION_IN, jacks[2].direction());
  97   EXPECT_EQ(nullptr, jacks[2].device);
  98 }
  99
 100 TEST(UsbMidiDescriptorParserTest, ParseDeviceInfoEmpty) {
 101   UsbMidiDescriptorParser parser;
 102   UsbMidiDescriptorParser::DeviceInfo info;
 103   EXPECT_FALSE(parser.ParseDeviceInfo(nullptr, 0, &info));
 104 }
 105
 106 TEST(UsbMidiDescriptorParserTest, ParseDeviceInfo) {
 107   UsbMidiDescriptorParser parser;
 108   UsbMidiDescriptorParser::DeviceInfo info;
 109   uint8 data[] = {
 110     0x12, 0x01, 0x10, 0x01, 0x00, 0x00, 0x00, 0x08, 0x01, 0x23,
 111     0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0x00, 0x0a,
 112   };
 113   EXPECT_TRUE(parser.ParseDeviceInfo(data, arraysize(data), &info));
 114
 115   EXPECT_EQ(0x2301, info.vendor_id);
 116   EXPECT_EQ(0x6745, info.product_id);
 117   EXPECT_EQ(0xab89, info.bcd_device_version);
 118   EXPECT_EQ(0xcd, info.manufacturer_index);
 119   EXPECT_EQ(0xef, info.product_index);
 120 }
 121
 122 }  // namespace
 123
 124 }  // namespace midi
 125 }  // namespace media