Moterm part 4: Add input event -> input character conversion function.

apps/moterm/key_util_unittest.cc

+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "apps/moterm/key_util.h"
+
+#include <string>
+
+#include "mojo/services/input_events/public/interfaces/input_events.mojom.h"
+#include "mojo/services/input_events/public/interfaces/input_key_codes.mojom.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace {
+
+// Makes a key event. Note that this cheats in a number of respects.
+// TODO(vtl): Add a |flags| argument when |GetInputSequenceForKeyPressedEvent()|
+// actually uses it.
+mojo::EventPtr MakeKeyEvent(bool is_char,
+                            char character,
+                            mojo::KeyboardCode windows_key_code) {
+  uint16_t character16 = static_cast<unsigned char>(character);
+
+  mojo::EventPtr ev = mojo::Event::New();
+  ev->action = mojo::EVENT_TYPE_KEY_PRESSED;
+  ev->flags = mojo::EVENT_FLAGS_NONE;  // Cheat.
+  ev->time_stamp = 1234567890LL;
+  ev->key_data = mojo::KeyData::New();
+  ev->key_data->key_code = 0;  // Cheat.
+  ev->key_data->is_char = is_char;
+  ev->key_data->character = character16;
+  ev->key_data->windows_key_code = windows_key_code;
+  ev->key_data->native_key_code = 0;
+  ev->key_data->text = character16;             // Cheat.
+  ev->key_data->unmodified_text = character16;  // Cheat.
+  return ev;
+}
+
+TEST(KeyUtilTest, RegularChars) {
+  // Only handles character events.
+  EXPECT_EQ(std::string(), GetInputSequenceForKeyPressedEvent(
+                               *MakeKeyEvent(false, 0, mojo::KEYBOARD_CODE_A)));
+
+  EXPECT_EQ("A", GetInputSequenceForKeyPressedEvent(
+                     *MakeKeyEvent(true, 'A', mojo::KEYBOARD_CODE_A)));
+  EXPECT_EQ("a", GetInputSequenceForKeyPressedEvent(
+                     *MakeKeyEvent(true, 'a', mojo::KEYBOARD_CODE_A)));
+  EXPECT_EQ("0", GetInputSequenceForKeyPressedEvent(
+                     *MakeKeyEvent(true, '0', mojo::KEYBOARD_CODE_NUM_0)));
+  EXPECT_EQ("!", GetInputSequenceForKeyPressedEvent(
+                     *MakeKeyEvent(true, '!', mojo::KEYBOARD_CODE_NUM_0)));
+  EXPECT_EQ("\t", GetInputSequenceForKeyPressedEvent(
+                      *MakeKeyEvent(true, '\t', mojo::KEYBOARD_CODE_TAB)));
+  EXPECT_EQ("\r", GetInputSequenceForKeyPressedEvent(
+                      *MakeKeyEvent(true, '\r', mojo::KEYBOARD_CODE_RETURN)));
+}
+
+TEST(KeyUtilTest, SpecialChars) {
+  // Backspace should send DEL.
+  EXPECT_EQ("\x7f", GetInputSequenceForKeyPressedEvent(
+                        *MakeKeyEvent(true, 0, mojo::KEYBOARD_CODE_BACK)));
+  EXPECT_EQ("\x1b", GetInputSequenceForKeyPressedEvent(
+                        *MakeKeyEvent(true, 0, mojo::KEYBOARD_CODE_ESCAPE)));
+  // Some multi-character results:
+  EXPECT_EQ("\x1b[5~", GetInputSequenceForKeyPressedEvent(
+                           *MakeKeyEvent(true, 0, mojo::KEYBOARD_CODE_PRIOR)));
+  EXPECT_EQ("\x1b[C", GetInputSequenceForKeyPressedEvent(
+                          *MakeKeyEvent(true, 0, mojo::KEYBOARD_CODE_RIGHT)));
+}
+
+}  // namespace