micropython/tests/extmod/ujson_dump_separators.py

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try:
from uio import StringIO
import ujson as json
except:
try:
from io import StringIO
import json
except ImportError:
print("SKIP")
raise SystemExit
for sep in [
None,
(", ", ": "),
(",", ": "),
(",", ":"),
[", ", ": "],
[",", ": "],
[",", ":"],
]:
s = StringIO()
json.dump(False, s, separators=sep)
print(s.getvalue())
s = StringIO()
json.dump({"a": (2, [3, None])}, s, separators=sep)
print(s.getvalue())
# dump to a small-int not allowed
try:
json.dump(123, 1, separators=sep)
except (AttributeError, OSError): # CPython and uPy have different errors
print("Exception")
# dump to an object not allowed
try:
json.dump(123, {}, separators=sep)
except (AttributeError, OSError): # CPython and uPy have different errors
print("Exception")
try:
s = StringIO()
json.dump(False, s, separators={"a": 1})
except (TypeError, ValueError): # CPython and uPy have different errors
print("Exception")
# invalid separator types
for sep in [1, object()]:
try:
s = StringIO()
json.dump(False, s, separators=sep)
except TypeError:
print("Exception")
# too many/ not enough separators
for sep in [(), (",", ":", "?"), (",",), []]:
try:
s = StringIO()
json.dump(False, s, separators=sep)
except ValueError:
print("Exception")