Add generic mapping for gamepad

ui/events/ozone/gamepad/generic_gamepad_mapping_unittest.cc

Index: ui/events/ozone/gamepad/generic_gamepad_mapping_unittest.cc
diff --git a/ui/events/ozone/gamepad/generic_gamepad_mapping_unittest.cc b/ui/events/ozone/gamepad/generic_gamepad_mapping_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..7ac37b4d623ca359cde4e35be611d1f8232eef25
--- /dev/null
+++ b/ui/events/ozone/gamepad/generic_gamepad_mapping_unittest.cc
@@ -0,0 +1,92 @@
+// Copyright 2017 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 "ui/events/ozone/gamepad/generic_gamepad_mapping.h"
+
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/input.h>
+#include <unistd.h>
+
+#include <memory>
+#include <queue>
+#include <utility>
+#include <vector>
+
+#include "base/bind.h"
+#include "base/files/file_util.h"
+#include "base/macros.h"
+#include "base/memory/ptr_util.h"
+#include "base/posix/eintr_wrapper.h"
+#include "base/run_loop.h"
+#include "base/time/time.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "ui/events/event.h"
+#include "ui/events/ozone/device/device_manager.h"
+#include "ui/events/ozone/evdev/event_converter_test_util.h"
+#include "ui/events/ozone/evdev/event_device_info.h"
+#include "ui/events/ozone/evdev/event_device_test_util.h"
+#include "ui/events/ozone/evdev/event_device_util.h"
+#include "ui/events/ozone/evdev/event_factory_evdev.h"
+#include "ui/events/ozone/gamepad/gamepad_event.h"
+#include "ui/events/ozone/gamepad/gamepad_observer.h"
+#include "ui/events/ozone/gamepad/gamepad_provider_ozone.h"
+#include "ui/events/ozone/gamepad/static_gamepad_mapping.h"
+#include "ui/events/ozone/gamepad/webgamepad_constants.h"
+#include "ui/events/ozone/layout/keyboard_layout_engine_manager.h"
+#include "ui/events/platform/platform_event_dispatcher.h"
+#include "ui/events/platform/platform_event_source.h"
+
+namespace ui {
+
+class GenericGamepadMappingTest : public testing::Test {
+ public:
+  GenericGamepadMappingTest() {}
+
+  void CompareGamepadMapper(const GamepadMapper* l_mapper,
+                            const GamepadMapper* r_mapper) {
+    bool l_result, r_result;
+    GamepadEventType l_mapped_type, r_mapped_type;
+    uint16_t l_mapped_code, r_mapped_code;
+    for (uint16_t code = BTN_MISC; code < KEY_MAX; code++) {
+      l_result = l_mapper->Map(EV_KEY, code, &l_mapped_type, &l_mapped_code);
+      r_result = r_mapper->Map(EV_KEY, code, &r_mapped_type, &r_mapped_code);
+      EXPECT_EQ(l_result, r_result) << " Current Code: " << code;
+      if (l_result) {
+        EXPECT_EQ(l_mapped_type, r_mapped_type);
+        EXPECT_EQ(r_mapped_code, r_mapped_code);
+      }
+    }
+    for (uint16_t code = ABS_X; code < ABS_MAX; code++) {
+      l_result = l_mapper->Map(EV_ABS, code, &l_mapped_type, &l_mapped_code);
+      r_result = r_mapper->Map(EV_ABS, code, &r_mapped_type, &r_mapped_code);
+      EXPECT_EQ(l_result, r_result);
+      if (l_result) {
+        EXPECT_EQ(l_mapped_type, r_mapped_type);
+        EXPECT_EQ(r_mapped_code, r_mapped_code);
+      }
+    }
+  }
+
+  void TestCompatableWithCapabilities(const DeviceCapabilities& cap) {
+    ui::EventDeviceInfo devinfo;
+    CapabilitiesToDeviceInfo(cap, &devinfo);
+    std::unique_ptr<GamepadMapper> static_mapper(
+        GetStaticGamepadMapper(devinfo.vendor_id(), devinfo.product_id()));
+    std::unique_ptr<GamepadMapper> generic_mapper =
+        BuildGenericGamepadMapper(devinfo);
+    CompareGamepadMapper(static_mapper.get(), generic_mapper.get());
+  }
+};
+
+TEST_F(GenericGamepadMappingTest, XInputGamepad) {
+  TestCompatableWithCapabilities(kXboxGamepad);
+}
+
+TEST_F(GenericGamepadMappingTest, HJCGamepad) {
+  TestCompatableWithCapabilities(kHJCGamepad);
+}
+
+}  // namespace ui