chrome/browser/chromeos/keyboard_driven_event_rewriter_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 "base/basictypes.h"
   6 #include "base/compiler_specific.h"
   7 #include "base/strings/stringprintf.h"
   8 #include "chrome/browser/chromeos/keyboard_driven_event_rewriter.h"
   9 #include "testing/gtest/include/gtest/gtest.h"
  10 #include "ui/events/event.h"
  11 #include "ui/events/x/events_x_utils.h"
  12
  13 #include <X11/keysym.h>
  14 #include <X11/XF86keysym.h>
  15 #include <X11/Xlib.h>
  16
  17 namespace chromeos {
  18
  19 // Creates an XKeyEvent to initialize a ui::KeyEvent that is passed to
  20 // KeyboardDrivenEventRewriter for processing.
  21 void InitXKeyEvent(ui::KeyboardCode ui_keycode,
  22                    int ui_flags,
  23                    ui::EventType ui_type,
  24                    KeyCode x_keycode,
  25                    unsigned int x_state,
  26                    XEvent* event) {
  27   ui::InitXKeyEventForTesting(ui_type,
  28                               ui_keycode,
  29                               ui_flags,
  30                               event);
  31   event->xkey.keycode = x_keycode;
  32   event->xkey.state = x_state;
  33 }
  34
  35 class KeyboardDrivenEventRewriterTest : public testing::Test {
  36  public:
  37   KeyboardDrivenEventRewriterTest()
  38       : display_(gfx::GetXDisplay()),
  39         keycode_a_(XKeysymToKeycode(display_, XK_a)),
  40         keycode_up_(XKeysymToKeycode(display_, XK_Up)),
  41         keycode_down_(XKeysymToKeycode(display_, XK_Down)),
  42         keycode_left_(XKeysymToKeycode(display_, XK_Left)),
  43         keycode_right_(XKeysymToKeycode(display_, XK_Right)),
  44         keycode_return_(XKeysymToKeycode(display_, XK_Return)) {
  45   }
  46
  47   virtual ~KeyboardDrivenEventRewriterTest() {}
  48
  49  protected:
  50   std::string GetRewrittenEventAsString(ui::KeyboardCode ui_keycode,
  51                                         int ui_flags,
  52                                         ui::EventType ui_type,
  53                                         KeyCode x_keycode,
  54                                         unsigned int x_state) {
  55     XEvent xev;
  56     InitXKeyEvent(ui_keycode, ui_flags, ui_type, x_keycode, x_state, &xev);
  57     ui::KeyEvent keyevent(&xev, false /* is_char */);
  58     rewriter_.RewriteForTesting(&keyevent);
  59     return base::StringPrintf(
  60         "ui_flags=%d x_state=%u", keyevent.flags(), xev.xkey.state);
  61   }
  62
  63   std::string GetExpectedResultAsString(int ui_flags, unsigned int x_state) {
  64     return base::StringPrintf("ui_flags=%d x_state=%u", ui_flags, x_state);
  65   }
  66
  67   XDisplay* display_;
  68   const KeyCode keycode_a_;
  69   const KeyCode keycode_up_;
  70   const KeyCode keycode_down_;
  71   const KeyCode keycode_left_;
  72   const KeyCode keycode_right_;
  73   const KeyCode keycode_return_;
  74
  75   KeyboardDrivenEventRewriter rewriter_;
  76
  77  private:
  78   DISALLOW_COPY_AND_ASSIGN(KeyboardDrivenEventRewriterTest);
  79 };
  80
  81 TEST_F(KeyboardDrivenEventRewriterTest, PassThrough) {
  82   struct {
  83     ui::KeyboardCode ui_keycode;
  84     int ui_flags;
  85     KeyCode x_keycode;
  86     unsigned int x_state;
  87   } kTests[] = {
  88     { ui::VKEY_A, ui::EF_NONE, keycode_a_, 0 },
  89     { ui::VKEY_A, ui::EF_CONTROL_DOWN, keycode_a_, ControlMask },
  90     { ui::VKEY_A, ui::EF_ALT_DOWN, keycode_a_, Mod1Mask },
  91     { ui::VKEY_A, ui::EF_SHIFT_DOWN, keycode_a_, ShiftMask },
  92     { ui::VKEY_A, ui::EF_CONTROL_DOWN | ui::EF_ALT_DOWN,
  93         keycode_a_, ControlMask | Mod1Mask },
  94     { ui::VKEY_A, ui::EF_CONTROL_DOWN | ui::EF_ALT_DOWN | ui::EF_SHIFT_DOWN,
  95         keycode_a_, ControlMask | Mod1Mask | ShiftMask },
  96
  97     { ui::VKEY_LEFT, ui::EF_NONE, keycode_left_, 0 },
  98     { ui::VKEY_LEFT, ui::EF_CONTROL_DOWN, keycode_left_, ControlMask },
  99     { ui::VKEY_LEFT, ui::EF_CONTROL_DOWN | ui::EF_ALT_DOWN,
 100         keycode_left_, ControlMask | Mod1Mask },
 101
 102     { ui::VKEY_RIGHT, ui::EF_NONE, keycode_right_, 0 },
 103     { ui::VKEY_RIGHT, ui::EF_CONTROL_DOWN, keycode_right_, ControlMask },
 104     { ui::VKEY_RIGHT, ui::EF_CONTROL_DOWN | ui::EF_ALT_DOWN,
 105         keycode_right_, ControlMask | Mod1Mask },
 106
 107     { ui::VKEY_UP, ui::EF_NONE, keycode_up_, 0 },
 108     { ui::VKEY_UP, ui::EF_CONTROL_DOWN, keycode_up_, ControlMask },
 109     { ui::VKEY_UP, ui::EF_CONTROL_DOWN | ui::EF_ALT_DOWN,
 110         keycode_up_, ControlMask | Mod1Mask },
 111
 112     { ui::VKEY_DOWN, ui::EF_NONE, keycode_down_, 0 },
 113     { ui::VKEY_DOWN, ui::EF_CONTROL_DOWN, keycode_down_, ControlMask },
 114     { ui::VKEY_DOWN, ui::EF_CONTROL_DOWN | ui::EF_ALT_DOWN,
 115         keycode_down_, ControlMask | Mod1Mask },
 116
 117     { ui::VKEY_RETURN, ui::EF_NONE, keycode_return_, 0 },
 118     { ui::VKEY_RETURN, ui::EF_CONTROL_DOWN, keycode_return_, ControlMask },
 119     { ui::VKEY_RETURN, ui::EF_CONTROL_DOWN | ui::EF_ALT_DOWN,
 120         keycode_return_, ControlMask | Mod1Mask },
 121   };
 122
 123   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kTests); ++i) {
 124     EXPECT_EQ(GetExpectedResultAsString(kTests[i].ui_flags,
 125                                         kTests[i].x_state),
 126               GetRewrittenEventAsString(kTests[i].ui_keycode,
 127                                         kTests[i].ui_flags,
 128                                         ui::ET_KEY_PRESSED,
 129                                         kTests[i].x_keycode,
 130                                         kTests[i].x_state))
 131     << "Test case " << i;
 132   }
 133 }
 134
 135 TEST_F(KeyboardDrivenEventRewriterTest, Rewrite) {
 136   const int kModifierMask = ui::EF_SHIFT_DOWN;
 137   const unsigned int kXState = ShiftMask;
 138
 139   struct {
 140     ui::KeyboardCode ui_keycode;
 141     int ui_flags;
 142     KeyCode x_keycode;
 143     unsigned int x_state;
 144   } kTests[] = {
 145     { ui::VKEY_LEFT, kModifierMask, keycode_left_, kXState },
 146     { ui::VKEY_RIGHT, kModifierMask, keycode_right_, kXState },
 147     { ui::VKEY_UP, kModifierMask, keycode_up_, kXState },
 148     { ui::VKEY_DOWN, kModifierMask, keycode_down_, kXState },
 149     { ui::VKEY_RETURN, kModifierMask, keycode_return_, kXState },
 150   };
 151
 152   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kTests); ++i) {
 153     EXPECT_EQ(GetExpectedResultAsString(ui::EF_NONE, 0),
 154               GetRewrittenEventAsString(kTests[i].ui_keycode,
 155                                         kTests[i].ui_flags,
 156                                         ui::ET_KEY_PRESSED,
 157                                         kTests[i].x_keycode,
 158                                         kTests[i].x_state))
 159     << "Test case " << i;
 160   }
 161 }
 162
 163 }  // namespace chromeos