| // Copyright 2018 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 "device/gamepad/gamepad_id_list.h" |
| |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace device { |
| |
| TEST(GamepadIdTest, NoDuplicateIds) { |
| // Each vendor/product ID pair and each gamepad ID should appear only once in |
| // the table of known gamepads. This ensures that there are no duplicates, and |
| // also that no two known devices map to the same ID. |
| const auto gamepads = GamepadIdList::Get().GetGamepadListForTesting(); |
| std::unordered_set<uint32_t> seen_vendor_product_ids; |
| std::unordered_set<GamepadId> seen_gamepad_ids; |
| for (const auto& item : gamepads) { |
| uint16_t vendor = std::get<0>(item); |
| uint16_t product = std::get<1>(item); |
| uint32_t vendor_product_id = (vendor << 16) | product; |
| GamepadId gamepad_id = GamepadIdList::Get().GetGamepadId(vendor, product); |
| seen_vendor_product_ids.insert(vendor_product_id); |
| seen_gamepad_ids.insert(gamepad_id); |
| EXPECT_NE(gamepad_id, GamepadId::kUnknownGamepad); |
| } |
| EXPECT_EQ(seen_vendor_product_ids.size(), gamepads.size()); |
| EXPECT_EQ(seen_gamepad_ids.size(), gamepads.size()); |
| } |
| |
| } // namespace device |