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 9namespace media { 10 11namespace { 12 13TEST(UsbMidiDescriptorParserTest, ParseEmpty) { 14 UsbMidiDescriptorParser parser; 15 std::vector<UsbMidiJack> jacks; 16 EXPECT_TRUE(parser.Parse(NULL, NULL, 0, &jacks)); 17 EXPECT_TRUE(jacks.empty()); 18} 19 20TEST(UsbMidiDescriptorParserTest, InvalidSize) { 21 UsbMidiDescriptorParser parser; 22 std::vector<UsbMidiJack> jacks; 23 uint8 data[] = {0x04}; 24 EXPECT_FALSE(parser.Parse(NULL, data, arraysize(data), &jacks)); 25 EXPECT_TRUE(jacks.empty()); 26} 27 28TEST(UsbMidiDescriptorParserTest, NonExistingJackIsAssociated) { 29 UsbMidiDescriptorParser parser; 30 std::vector<UsbMidiJack> jacks; 31 // Jack id=1 is found in a CS_ENDPOINT descriptor, but there is no definition 32 // for the jack. 33 uint8 data[] = { 34 0x09, 0x04, 0x01, 0x00, 0x02, 0x01, 0x03, 0x00, 0x00, 0x07, 35 0x24, 0x01, 0x00, 0x01, 0x07, 0x00, 0x05, 0x25, 0x01, 0x01, 36 0x01, 37 }; 38 EXPECT_FALSE(parser.Parse(NULL, data, arraysize(data), &jacks)); 39 EXPECT_TRUE(jacks.empty()); 40} 41 42TEST(UsbMidiDescriptorParserTest, 43 JacksShouldBeIgnoredWhenParserIsNotParsingMidiInterface) { 44 UsbMidiDescriptorParser parser; 45 std::vector<UsbMidiJack> jacks; 46 // a NON-MIDI INTERFACE descriptor followed by ENDPOINT and CS_ENDPOINT 47 // descriptors (Compare with the previous test case). 48 uint8 data[] = { 49 0x09, 0x04, 0x01, 0x00, 0x02, 0x01, 0x02, 0x00, 0x00, 0x07, 50 0x24, 0x01, 0x00, 0x01, 0x07, 0x00, 0x05, 0x25, 0x01, 0x01, 51 0x01, 52 }; 53 EXPECT_TRUE(parser.Parse(NULL, data, arraysize(data), &jacks)); 54 EXPECT_TRUE(jacks.empty()); 55} 56 57TEST(UsbMidiDescriptorParserTest, Parse) { 58 UsbMidiDescriptorParser parser; 59 std::vector<UsbMidiJack> jacks; 60 // A complete device descriptor. 61 uint8 data[] = { 62 0x12, 0x01, 0x10, 0x01, 0x00, 0x00, 0x00, 0x08, 0x86, 0x1a, 63 0x2d, 0x75, 0x54, 0x02, 0x00, 0x02, 0x00, 0x01, 0x09, 0x02, 64 0x75, 0x00, 0x02, 0x01, 0x00, 0x80, 0x30, 0x09, 0x04, 0x00, 65 0x00, 0x00, 0x01, 0x01, 0x00, 0x00, 0x09, 0x24, 0x01, 0x00, 66 0x01, 0x09, 0x00, 0x01, 0x01, 0x09, 0x04, 0x01, 0x00, 0x02, 67 0x01, 0x03, 0x00, 0x00, 0x07, 0x24, 0x01, 0x00, 0x01, 0x51, 68 0x00, 0x06, 0x24, 0x02, 0x01, 0x02, 0x00, 0x06, 0x24, 0x02, 69 0x01, 0x03, 0x00, 0x06, 0x24, 0x02, 0x02, 0x06, 0x00, 0x09, 70 0x24, 0x03, 0x01, 0x07, 0x01, 0x06, 0x01, 0x00, 0x09, 0x24, 71 0x03, 0x02, 0x04, 0x01, 0x02, 0x01, 0x00, 0x09, 0x24, 0x03, 72 0x02, 0x05, 0x01, 0x03, 0x01, 0x00, 0x09, 0x05, 0x02, 0x02, 73 0x20, 0x00, 0x00, 0x00, 0x00, 0x06, 0x25, 0x01, 0x02, 0x02, 74 0x03, 0x09, 0x05, 0x82, 0x02, 0x20, 0x00, 0x00, 0x00, 0x00, 75 0x05, 0x25, 0x01, 0x01, 0x07, 76 }; 77 EXPECT_TRUE(parser.Parse(NULL, data, arraysize(data), &jacks)); 78 ASSERT_EQ(3u, jacks.size()); 79 80 EXPECT_EQ(2u, jacks[0].jack_id); 81 EXPECT_EQ(0u, jacks[0].cable_number); 82 EXPECT_EQ(2u, jacks[0].endpoint_number()); 83 EXPECT_EQ(UsbMidiJack::DIRECTION_OUT, jacks[0].direction()); 84 EXPECT_EQ(NULL, jacks[0].device); 85 86 EXPECT_EQ(3u, jacks[1].jack_id); 87 EXPECT_EQ(1u, jacks[1].cable_number); 88 EXPECT_EQ(2u, jacks[1].endpoint_number()); 89 EXPECT_EQ(UsbMidiJack::DIRECTION_OUT, jacks[1].direction()); 90 EXPECT_EQ(NULL, jacks[1].device); 91 92 EXPECT_EQ(7u, jacks[2].jack_id); 93 EXPECT_EQ(0u, jacks[2].cable_number); 94 EXPECT_EQ(2u, jacks[2].endpoint_number()); 95 EXPECT_EQ(UsbMidiJack::DIRECTION_IN, jacks[2].direction()); 96 EXPECT_EQ(NULL, jacks[2].device); 97} 98 99} // namespace 100 101} // namespace media 102