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# Tests for mpremote
This directory contains a set of tests for `mpremote`.
Requirements:
- A device running MicroPython connected to a serial port on the host.
- The device you are testing against must be flashed with a firmware of the same build
as `mpremote`.
- If the device has an SDcard or other vfs mounted, the vfs's filesystem must be empty
to pass the filesystem test.
- Python 3.x, `bash` and various Unix tools such as `find`, `mktemp`, `sed`, `sort`, `tr`.
- To test on Windows, you can either:
- Run the (Linux) tests in WSL2 against a USB device that is passed though to WSL2.
- Use the `Git Bash` terminal to run the tests against a device connected to a COM
port. _Note:_ While the tests will run in `Git Bash`, several will throw false
positive errors due to differences in the way that TMP files are logged and and
several other details.
To run the tests do:
$ cd tools/mpremote/tests
$ ./run-mpremote-tests.sh
To run a single test do:
$ ./run-mpremote-tests.sh test_filesystem.sh
Each test should print "OK" if it passed. Otherwise it will print "CRASH", or "FAIL"
and a diff of the expected and actual test output.
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