| #!/usr/bin/env python3 |
| # Copyright 2024 The Pigweed Authors |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| # use this file except in compliance with the License. You may obtain a copy of |
| # the License at |
| # |
| # https://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| # License for the specific language governing permissions and limitations under |
| # the License. |
| """Tests for snapshot processing.""" |
| |
| import base64 |
| import unittest |
| from pw_snapshot.processor import process_snapshot |
| |
| _RISCV_EXPECTED_SNAPSHOT = """ |
| ____ _ __ _____ _ _____ ____ _____ __ ______ ______ |
| / __ \\ | / / / ___// | / / | / __ \\/ ___// / / / __ \\/_ __/ |
| / /_/ / | /| / / \\__ \\/ |/ / /| | / /_/ /\\__ \\/ /_/ / / / / / / |
| / ____/| |/ |/ / ___/ / /| / ___ |/ ____/___/ / __ / /_/ / / / |
| /_/ |__/|__/____/____/_/ |_/_/ |_/_/ /____/_/ /_/\\____/ /_/ |
| /_____/ |
| |
| |
| Snapshot capture reason: |
| Example Reason |
| |
| Reason token: 0x6d617845 |
| Project name: example_project |
| Device: hyper-fast-gshoe |
| CPU Arch: RV32I |
| Device FW version: gShoe-debug-1.2.1-6f23412b+ |
| Snapshot UUID: 00000001 |
| |
| All registers: |
| mepc 0x20000001 |
| mcause 0x20000002 |
| mstatus 0x20000003 |
| """ |
| |
| _ARM_EXPECTED_SNAPSHOT = """ |
| ____ _ __ _____ _ _____ ____ _____ __ ______ ______ |
| / __ \\ | / / / ___// | / / | / __ \\/ ___// / / / __ \\/_ __/ |
| / /_/ / | /| / / \\__ \\/ |/ / /| | / /_/ /\\__ \\/ /_/ / / / / / / |
| / ____/| |/ |/ / ___/ / /| / ___ |/ ____/___/ / __ / /_/ / / / |
| /_/ |__/|__/____/____/_/ |_/_/ |_/_/ /____/_/ /_/\\____/ /_/ |
| /_____/ |
| |
| |
| Snapshot capture reason: |
| Example Reason |
| |
| Reason token: 0x6d617845 |
| Project name: example_project |
| Device: hyper-fast-gshoe |
| CPU Arch: ARMV7M |
| Device FW version: gShoe-debug-1.2.1-6f23412b+ |
| Snapshot UUID: 00000001 |
| |
| Exception caused by a unknown exception. |
| |
| No active Crash Fault Status Register (CFSR) fields. |
| |
| All registers: |
| pc 0x20000001 |
| lr 0x20000002 |
| psr 0x20000003 |
| """ |
| |
| |
| class ProcessorTest(unittest.TestCase): |
| """Tests that the metadata processor produces expected results.""" |
| |
| def test_riscv_process_snapshot(self): |
| """Test processing snapshot of a RISCV CPU""" |
| |
| snapshot = base64.b64decode( |
| "ggFYCg5FeGFtcGxlIFJlYXNvbhoPZXhhbXBs" |
| "ZV9wcm9qZWN0IhtnU2hvZS1kZWJ1Zy0xLjIu" |
| "MS02ZjIzNDEyYisyEGh5cGVyLWZhc3QtZ3No" |
| "b2U6BAAAAAFABaIBEgiBgICAAhCCgICAAhiD" |
| "gICAAg==" |
| ) |
| |
| output = process_snapshot(snapshot) |
| self.assertEqual(output, _RISCV_EXPECTED_SNAPSHOT) |
| |
| def test_cortexm_process_snapshot(self): |
| """Test processing snapshot of a ARM CPU""" |
| |
| snapshot = base64.b64decode( |
| "ggFYCg5FeGFtcGxlIFJlYXNvbhoPZXhhbXBsZV9wc" |
| "m9qZWN0IhtnU2hvZS1kZWJ1Zy0xLjIuMS02ZjIzND" |
| "EyYisyEGh5cGVyLWZhc3QtZ3Nob2U6BAAAAAFAAqI" |
| "BEgiBgICAAhCCgICAAhiDgICAAg==" |
| ) |
| |
| output = process_snapshot(snapshot) |
| self.assertEqual(output, _ARM_EXPECTED_SNAPSHOT) |
| |
| |
| if __name__ == '__main__': |
| unittest.main() |