ui/events/keycodes/dom/keycode_converter_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 "ui/events/keycodes/dom/keycode_converter.h"
   6
   7 #include <map>
   8
   9 #include "base/basictypes.h"
  10 #include "testing/gtest/include/gtest/gtest.h"
  11 #include "ui/events/keycodes/dom/dom_code.h"
  12 #include "ui/events/keycodes/dom/dom_key.h"
  13
  14 using ui::KeycodeConverter;
  15
  16 namespace {
  17
  18 #if defined(OS_WIN)
  19 const size_t kExpectedMappedKeyCount = 138;
  20 #elif defined(OS_LINUX)
  21 const size_t kExpectedMappedKeyCount = 168;
  22 #elif defined(OS_MACOSX)
  23 const size_t kExpectedMappedKeyCount = 118;
  24 #else
  25 const size_t kExpectedMappedKeyCount = 0;
  26 #endif
  27
  28 const uint32_t kUsbNonExistentKeycode = 0xffffff;
  29 const uint32_t kUsbUsBackslash =        0x070031;
  30 const uint32_t kUsbNonUsHash =          0x070032;
  31
  32 TEST(UsbKeycodeMap, Basic) {
  33   // Verify that the first element in the table is the "invalid" code.
  34   const ui::KeycodeMapEntry* keycode_map =
  35       ui::KeycodeConverter::GetKeycodeMapForTest();
  36   EXPECT_EQ(ui::KeycodeConverter::InvalidUsbKeycode(),
  37             keycode_map[0].usb_keycode);
  38   EXPECT_EQ(ui::KeycodeConverter::InvalidNativeKeycode(),
  39             keycode_map[0].native_keycode);
  40   EXPECT_EQ(ui::KeycodeConverter::InvalidNativeKeycode(),
  41             ui::KeycodeConverter::DomCodeToNativeKeycode(ui::DomCode::NONE));
  42
  43   // Verify that there are no duplicate entries in the mapping.
  44   std::map<uint32_t, uint16_t> usb_to_native;
  45   std::map<uint16_t, uint32_t> native_to_usb;
  46   size_t numEntries = ui::KeycodeConverter::NumKeycodeMapEntriesForTest();
  47   for (size_t i = 0; i < numEntries; ++i) {
  48     const ui::KeycodeMapEntry* entry = &keycode_map[i];
  49     // Don't test keys with no native keycode mapping on this platform.
  50     if (entry->native_keycode == ui::KeycodeConverter::InvalidNativeKeycode())
  51       continue;
  52
  53     // Verify UsbKeycodeToNativeKeycode works for this key.
  54     EXPECT_EQ(
  55         entry->native_keycode,
  56         ui::KeycodeConverter::UsbKeycodeToNativeKeycode(entry->usb_keycode));
  57
  58     // Verify DomCodeToNativeKeycode works correctly.
  59     ui::DomCode dom_code =
  60         ui::KeycodeConverter::CodeStringToDomCode(entry->code);
  61     if (entry->code) {
  62       EXPECT_EQ(entry->native_keycode,
  63                 ui::KeycodeConverter::DomCodeToNativeKeycode(dom_code));
  64     } else {
  65       EXPECT_EQ(ui::DomCode::NONE, dom_code);
  66     }
  67
  68     // Verify that the USB or native codes aren't duplicated.
  69     EXPECT_EQ(0U, usb_to_native.count(entry->usb_keycode))
  70         << " duplicate of USB code 0x" << std::hex << std::setfill('0')
  71         << std::setw(6) << entry->usb_keycode
  72         << " to native 0x"
  73         << std::setw(4) << entry->native_keycode
  74         << " (previous was 0x"
  75         << std::setw(4) << usb_to_native[entry->usb_keycode]
  76         << ")";
  77     usb_to_native[entry->usb_keycode] = entry->native_keycode;
  78     EXPECT_EQ(0U, native_to_usb.count(entry->native_keycode))
  79         << " duplicate of native code 0x" << std::hex << std::setfill('0')
  80         << std::setw(4) << entry->native_keycode
  81         << " to USB 0x"
  82         << std::setw(6) << entry->usb_keycode
  83         << " (previous was 0x"
  84         << std::setw(6) << native_to_usb[entry->native_keycode]
  85         << ")";
  86     native_to_usb[entry->native_keycode] = entry->usb_keycode;
  87   }
  88   ASSERT_EQ(usb_to_native.size(), native_to_usb.size());
  89
  90   // Verify that the number of mapped keys is what we expect, i.e. we haven't
  91   // lost any, and if we've added some then the expectation has been updated.
  92   EXPECT_EQ(kExpectedMappedKeyCount, usb_to_native.size());
  93 }
  94
  95 TEST(UsbKeycodeMap, NonExistent) {
  96   // Verify that UsbKeycodeToNativeKeycode works for a non-existent USB keycode.
  97   EXPECT_EQ(
  98       ui::KeycodeConverter::InvalidNativeKeycode(),
  99       ui::KeycodeConverter::UsbKeycodeToNativeKeycode(kUsbNonExistentKeycode));
 100 }
 101
 102 TEST(UsbKeycodeMap, UsBackslashIsNonUsHash) {
 103   // Verify that UsbKeycodeToNativeKeycode treats the non-US "hash" key
 104   // as equivalent to the US "backslash" key.
 105   EXPECT_EQ(ui::KeycodeConverter::UsbKeycodeToNativeKeycode(kUsbUsBackslash),
 106             ui::KeycodeConverter::UsbKeycodeToNativeKeycode(kUsbNonUsHash));
 107 }
 108
 109 TEST(KeycodeConverter, DomCode) {
 110   // Test invalid and unknown arguments to CodeStringToDomCode()
 111   EXPECT_EQ(ui::DomCode::NONE,
 112             ui::KeycodeConverter::CodeStringToDomCode(nullptr));
 113   EXPECT_EQ(ui::DomCode::NONE, ui::KeycodeConverter::CodeStringToDomCode("-"));
 114   EXPECT_EQ(ui::DomCode::NONE, ui::KeycodeConverter::CodeStringToDomCode(""));
 115   // Round-trip test DOM Level 3 .code strings.
 116   const ui::KeycodeMapEntry* keycode_map =
 117       ui::KeycodeConverter::GetKeycodeMapForTest();
 118   size_t numEntries = ui::KeycodeConverter::NumKeycodeMapEntriesForTest();
 119   for (size_t i = 0; i < numEntries; ++i) {
 120     SCOPED_TRACE(i);
 121     const ui::KeycodeMapEntry* entry = &keycode_map[i];
 122     ui::DomCode code = ui::KeycodeConverter::CodeStringToDomCode(entry->code);
 123     if (entry->code) {
 124       EXPECT_STREQ(entry->code,
 125                    ui::KeycodeConverter::DomCodeToCodeString(code));
 126     } else {
 127       EXPECT_EQ(static_cast<int>(ui::DomCode::NONE),
 128                 static_cast<int>(code));
 129     }
 130   }
 131 }
 132
 133 TEST(KeycodeConverter, DomKey) {
 134   // Test invalid and unknown arguments to KeyStringToDomKey()
 135   EXPECT_EQ(ui::DomKey::NONE, ui::KeycodeConverter::KeyStringToDomKey(nullptr));
 136   EXPECT_EQ(ui::DomKey::NONE, ui::KeycodeConverter::KeyStringToDomKey("-"));
 137   // Round-trip test DOM Level 3 .key strings.
 138   const char* s = nullptr;
 139   for (size_t i = 0;
 140        (s = ui::KeycodeConverter::DomKeyStringForTest(i)) != nullptr;
 141        ++i) {
 142     SCOPED_TRACE(i);
 143     ui::DomKey key = ui::KeycodeConverter::KeyStringToDomKey(s);
 144     if (s) {
 145       EXPECT_STREQ(s, ui::KeycodeConverter::DomKeyToKeyString(key));
 146     } else {
 147       EXPECT_EQ(ui::DomKey::NONE, key);
 148     }
 149   }
 150 }
 151
 152 }  // namespace