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This patch concerns the handling of an NLR-raised StopIteration, raised during a call to mp_resume() which is handling the yield from opcode. Previously, commit6738c1ddedintroduced code to handle this case, along with a test. It seems that it was lucky that the test worked because the code did not correctly handle the stack pointer (sp). Furthermore, commit79d996a57bimproved the way mp_resume() propagated certain exceptions: it changed raising an NLR value to returning MP_VM_RETURN_EXCEPTION. This change meant that the test introduced in gen_yield_from_ducktype.py was no longer hitting the code introduced in6738c1dded. The patch here does two things: 1. Fixes the handling of sp in the VM for the case that yield from is interrupted by a StopIteration raised via NLR. 2. Introduces a new test to check this handling of sp and re-covers the code in the VM.
This directory contains tests for various functionality areas of MicroPython. To run all stable tests, run "run-tests" script in this directory. Tests of capabilities not supported on all platforms should be written to check for the capability being present. If it is not, the test should merely output 'SKIP' followed by the line terminator, and call sys.exit() to raise SystemExit, instead of attempting to test the missing capability. The testing framework (run-tests in this directory, test_main.c in qemu_arm) recognizes this as a skipped test. There are a few features for which this mechanism cannot be used to condition a test. The run-tests script uses small scripts in the feature_check directory to check whether each such feature is present, and skips the relevant tests if not. When creating new tests, anything that relies on float support should go in the float/ subdirectory. Anything that relies on import x, where x is not a built-in module, should go in the import/ subdirectory.