Rename i2c_test to i2c_demo for consistency

[Copilot]

Renamed the I2C application from i2c_test to i2c_demo to better reflect its purpose as a demonstration rather than a test harness.

Changes

C++ Application

• Directory: src/apps/i2c_test/ → src/apps/i2c_demo/
• Files: i2c_test.{cpp,hpp} → i2c_demo.{cpp,hpp}
• Class: I2CTest → I2CDemo
• CMake targets updated in src/apps/CMakeLists.txt

Python Integration Tests

• File: test_i2c_test.py → test_i2c_demo.py
• Test functions: test_i2c_test_*() → test_i2c_demo_*()
• Fixture: i2c_test → i2c_demo in conftest.py
• CLI option: --i2c-test → --i2c-demo

Example

# Before
pytest tests/test_i2c_test.py --i2c-test=/path/to/executable

# After
pytest tests/test_i2c_demo.py --i2c-demo=/path/to/executable

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• esm.ubuntu.com
  • Triggering command: /usr/lib/apt/methods/https /usr/lib/apt/methods/https (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

The i2c_test app, source files, and identifiers need to be renamed to i2c_demo and I2CDemo for consistency.

Detailed task:

1. Rename the application directory under src/apps from i2c_test to i2c_demo:
   • src/apps/i2c_test → src/apps/i2c_demo
2. In src/apps/CMakeLists.txt, change any reference of i2c_test to i2c_demo (e.g., add_subdirectory(i2c_test) → add_subdirectory(i2c_demo)).
3. Rename src/apps/i2c_test/CMakeLists.txt → src/apps/i2c_demo/CMakeLists.txt.
4. Rename src/apps/i2c_test/i2c_test.cpp → src/apps/i2c_demo/i2c_demo.cpp and similarly i2c_test.hpp → i2c_demo.hpp.
5. In the CMakeLists.txt and source files, update the executable name from i2c_test to i2c_demo, and update includes to reference i2c_demo.hpp.
6. Update all code references from I2CTest to I2CDemo in .cpp and .hpp files.
7. Update any references in comments and documentation as needed.
8. Update the python test filename and identifier under py/host-emulator/tests/test_i2c_test.py to test_i2c_demo.py, and change test class/functions and message references from i2c_test to i2c_demo.

Apply ALL renamings and related updates.

This pull request was created as a result of the following prompt from Copilot chat.

The i2c_test app, source files, and identifiers need to be renamed to i2c_demo and I2CDemo for consistency.

Detailed task:

1. Rename the application directory under src/apps from i2c_test to i2c_demo:
   • src/apps/i2c_test → src/apps/i2c_demo
2. In src/apps/CMakeLists.txt, change any reference of i2c_test to i2c_demo (e.g., add_subdirectory(i2c_test) → add_subdirectory(i2c_demo)).
3. Rename src/apps/i2c_test/CMakeLists.txt → src/apps/i2c_demo/CMakeLists.txt.
4. Rename src/apps/i2c_test/i2c_test.cpp → src/apps/i2c_demo/i2c_demo.cpp and similarly i2c_test.hpp → i2c_demo.hpp.
5. In the CMakeLists.txt and source files, update the executable name from i2c_test to i2c_demo, and update includes to reference i2c_demo.hpp.
6. Update all code references from I2CTest to I2CDemo in .cpp and .hpp files.
7. Update any references in comments and documentation as needed.
8. Update the python test filename and identifier under py/host-emulator/tests/test_i2c_test.py to test_i2c_demo.py, and change test class/functions and message references from i2c_test to i2c_demo.

Apply ALL renamings and related updates.

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