tests/extmod/json_dump.py


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try:
    from io import StringIO
    import json
except ImportError:
    print("SKIP")
    raise SystemExit

s = StringIO()
json.dump(False, s)
print(s.getvalue())

s = StringIO()
json.dump({"a": (2, [3, None])}, s)
print(s.getvalue())

# dump to a small-int not allowed
try:
    json.dump(123, 1)
except (AttributeError, OSError):  # CPython and uPy have different errors
    print("Exception")

# dump to an object not allowed
try:
    json.dump(123, {})
except (AttributeError, OSError):  # CPython and uPy have different errors
    print("Exception")