| // Copyright 2023 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef UI_DISPLAY_MANAGER_UTIL_DISPLAY_MANAGER_TEST_UTIL_H_ |
| #define UI_DISPLAY_MANAGER_UTIL_DISPLAY_MANAGER_TEST_UTIL_H_ |
| |
| #include <stdint.h> |
| |
| #include "ui/display/manager/display_manager_export.h" |
| |
| namespace display { |
| |
| // Resets the synthesized display id for testing. This |
| // is necessary to avoid overflowing the output index. |
| DISPLAY_MANAGER_EXPORT void ResetDisplayIdForTest(); |
| |
| // Generates a fake, synthesized display ID.. |
| DISPLAY_MANAGER_EXPORT int64_t GetASynthesizedDisplayId(); |
| |
| // Uses |id| as a seed to produce the next synthesized ID. |
| DISPLAY_MANAGER_EXPORT int64_t SynthesizeDisplayIdFromSeed(int64_t id); |
| |
| // Generates the next fake connector index for displays who's ID was generated |
| // by hashing their EDIDs. |
| DISPLAY_MANAGER_EXPORT int64_t GetNextSynthesizedEdidDisplayConnectorIndex(); |
| |
| // Increases the most significant digit of |id| by one. For example: |
| // for 2200000000, this function returns 3200000000. |
| // Note: this method is chosen for readability purposes only. It creates a an |
| // easy-to-read relationship between |id| and the returned value, so that a |
| // reader of test logs can look at the two IDs and recognize they are related. |
| DISPLAY_MANAGER_EXPORT int64_t ProduceAlternativeSchemeIdForId(int64_t id); |
| |
| } // namespace display |
| |
| #endif // UI_DISPLAY_MANAGER_UTIL_DISPLAY_MANAGER_TEST_UTIL_H_ |
