circuitpython/tests
Damien George bd556b6996 py: Fix compiling and decoding of *args at large arg positions.
There were two issues with the existing code:

1. "1 << i" is computed as a 32-bit number so would overflow when
   executed on 64-bit machines (when mp_uint_t is 64-bit).  This meant that
   *args beyond 32 positions would not be handled correctly.

2. star_args must fit as a positive small int so that it is encoded
   correctly in the emitted code.  MP_SMALL_INT_BITS is too big because it
   overflows a small int by 1 bit.  MP_SMALL_INT_BITS - 1 does not work
   because it produces a signed small int which is then sign extended when
   extracted (even by mp_obj_get_int_truncated), and this sign extension
   means that any position arg after *args is also treated as a star-arg.
   So the maximum bit position is MP_SMALL_INT_BITS - 2.  This means that
   MP_OBJ_SMALL_INT_VALUE() can be used instead of
   mp_obj_get_int_truncated() to get the value of star_args.

These issues are fixed by this commit, and a test added.

Signed-off-by: Damien George <damien@micropython.org>
2022-04-01 09:20:42 +11:00
..
basics tests/basics/fun_callstardblstar: Add coverage test. 2022-03-31 17:01:15 +11:00
cmdline py/runtime: Allow multiple **args in a function call. 2022-03-31 16:54:00 +11:00
cpydiff py/runtime: Allow multiple *args in a function call. 2022-03-31 16:59:30 +11:00
esp32 tests: Rename run-tests to run-tests.py for consistency. 2021-03-12 19:56:09 +11:00
extmod extmod/uasyncio: Fix gather cancelling and handling of exceptions. 2022-03-30 16:07:44 +11:00
feature_check py: Implement partial PEP-498 (f-string) support. 2021-08-14 16:58:40 +10:00
float all: Update Python formatting to latest Black version 22.1.0. 2022-02-02 16:49:55 +11:00
import py/builtinimport: Change relative import's ValueError to ImportError. 2021-05-30 19:35:03 +10:00
inlineasm tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
internal_bench tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
io py/modio: Remove io.resource_stream function. 2021-12-17 23:53:44 +11:00
jni tests: Rename run-tests to run-tests.py for consistency. 2021-03-12 19:56:09 +11:00
micropython tests/micropython: Switch from set.pop to raise-0 to test exc strings. 2022-03-07 16:48:35 +11:00
misc all: Update Python formatting to latest Black version 22.1.0. 2022-02-02 16:49:55 +11:00
multi_bluetooth tests/multi_bluetooth/ble_subscribe.py: Add test for subscription. 2021-08-14 22:44:47 +10:00
multi_net tests/multi_net/udp_data.py: Make UDP test more reliable. 2022-02-09 14:05:01 +11:00
net_hosted extmod/uasyncio: Get addr and bind server socket before creating task. 2021-06-26 22:30:22 +10:00
net_inet tests: Use .errno instead of .args[0] for OSError exceptions. 2021-04-23 22:03:46 +10:00
perf_bench tests/perf_bench: Skip bm_chaos test if random.randrange is unavailable. 2022-02-24 18:29:02 +11:00
pyb stm32: Replace master/slave with controller/peripheral in I2C and SPI. 2021-07-18 11:23:41 +10:00
pybnative tests/pybnative: Make while.py test run on boards without pyb.delay. 2021-09-01 00:43:41 +10:00
qemu-arm qemu-arm: Add tests for freezing viper and asm_thumb code. 2022-02-24 18:29:02 +11:00
stress py: Fix compiling and decoding of *args at large arg positions. 2022-04-01 09:20:42 +11:00
thread tests/thread: Make exc1,exit1,exit2,stacksize1,start1 tests run on rp2. 2021-05-10 13:07:16 +10:00
unicode tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
unix py/modsys: Add optional mutable attributes sys.ps1/ps2 and use them. 2022-03-10 10:58:33 +11:00
wipy tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
README tests: Rename run-tests to run-tests.py for consistency. 2021-03-12 19:56:09 +11:00
run-internalbench.py tests: Rename run-tests to run-tests.py for consistency. 2021-03-12 19:56:09 +11:00
run-multitests.py tests/run-multitests.py: Set HOST_IP so tests work between PC and board. 2022-01-17 17:35:04 +11:00
run-natmodtests.py all: Rename "sys" module to "usys". 2020-09-04 00:10:24 +10:00
run-perfbench.py tests/run-perfbench.py: Use SKIP consistently, and increase print width. 2022-02-11 22:19:38 +11:00
run-tests-exp.py tests: Rename run-tests to run-tests.py for consistency. 2021-03-12 19:56:09 +11:00
run-tests-exp.sh tests: Rename run-tests to run-tests.py for consistency. 2021-03-12 19:56:09 +11:00
run-tests.py py: Change jump opcodes to emit 1-byte jump offset when possible. 2022-03-28 15:41:38 +11:00

This directory contains tests for various functionality areas of MicroPython.
To run all stable tests, run "run-tests.py" 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.py 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.py script uses small scripts in the
feature_check directory to check whether each such feature is present,
and skips the relevant tests if not.

Tests are generally verified by running the test both in MicroPython and
in CPython and comparing the outputs. If the output differs the test fails
and the outputs are saved in a .out and a .exp file respectively.
For tests that cannot be run in CPython, for example because they use
the machine module, a .exp file can be provided next to the test's .py
file. A convenient way to generate that is to run the test, let it fail
(because CPython cannot run it) and then copy the .out file (but not
before checking it manually!)

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.