circuitpython/tests/micropython/heap_lock.py
David Lechner 3dc324d3f1 tests: Format all Python code with black, except tests in basics subdir.
This adds the Python files in the tests/ directory to be formatted with
./tools/codeformat.py.  The basics/ subdirectory is excluded for now so we
aren't changing too much at once.

In a few places `# fmt: off`/`# fmt: on` was used where the code had
special formatting for readability or where the test was actually testing
the specific formatting.
2020-03-30 13:21:58 +11:00

35 lines
548 B
Python

# check that heap_lock/heap_unlock work as expected
import micropython
l = []
l2 = list(range(100))
micropython.heap_lock()
micropython.heap_lock()
# general allocation on the heap
try:
print([])
except MemoryError:
print("MemoryError")
# expansion of a heap block
try:
l.extend(l2)
except MemoryError:
print("MemoryError")
print(micropython.heap_unlock())
# Should still fail
try:
print([])
except MemoryError:
print("MemoryError")
micropython.heap_unlock()
# check that allocation works after an unlock
print([])