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Mini Shell
Mini Shell
from unittest import TestCase
import json
import subprocess
import sys
from jsonschema import Draft4Validator, ValidationError, cli, __version__
from jsonschema.compat import NativeIO
from jsonschema.exceptions import SchemaError
def fake_validator(*errors):
errors = list(reversed(errors))
class FakeValidator(object):
def __init__(self, *args, **kwargs):
pass
def iter_errors(self, instance):
if errors:
return errors.pop()
return []
def check_schema(self, schema):
pass
return FakeValidator
class TestParser(TestCase):
FakeValidator = fake_validator()
instance_file = "foo.json"
schema_file = "schema.json"
def setUp(self):
cli.open = self.fake_open
self.addCleanup(delattr, cli, "open")
def fake_open(self, path):
if path == self.instance_file:
contents = ""
elif path == self.schema_file:
contents = {}
else: # pragma: no cover
self.fail("What is {!r}".format(path))
return NativeIO(json.dumps(contents))
def test_find_validator_by_fully_qualified_object_name(self):
arguments = cli.parse_args(
[
"--validator",
"jsonschema.tests.test_cli.TestParser.FakeValidator",
"--instance", self.instance_file,
self.schema_file,
]
)
self.assertIs(arguments["validator"], self.FakeValidator)
def test_find_validator_in_jsonschema(self):
arguments = cli.parse_args(
[
"--validator", "Draft4Validator",
"--instance", self.instance_file,
self.schema_file,
]
)
self.assertIs(arguments["validator"], Draft4Validator)
class TestCLI(TestCase):
def test_draft3_schema_draft4_validator(self):
stdout, stderr = NativeIO(), NativeIO()
with self.assertRaises(SchemaError):
cli.run(
{
"validator": Draft4Validator,
"schema": {
"anyOf": [
{"minimum": 20},
{"type": "string"},
{"required": True},
],
},
"instances": [1],
"error_format": "{error.message}",
},
stdout=stdout,
stderr=stderr,
)
def test_successful_validation(self):
stdout, stderr = NativeIO(), NativeIO()
exit_code = cli.run(
{
"validator": fake_validator(),
"schema": {},
"instances": [1],
"error_format": "{error.message}",
},
stdout=stdout,
stderr=stderr,
)
self.assertFalse(stdout.getvalue())
self.assertFalse(stderr.getvalue())
self.assertEqual(exit_code, 0)
def test_unsuccessful_validation(self):
error = ValidationError("I am an error!", instance=1)
stdout, stderr = NativeIO(), NativeIO()
exit_code = cli.run(
{
"validator": fake_validator([error]),
"schema": {},
"instances": [1],
"error_format": "{error.instance} - {error.message}",
},
stdout=stdout,
stderr=stderr,
)
self.assertFalse(stdout.getvalue())
self.assertEqual(stderr.getvalue(), "1 - I am an error!")
self.assertEqual(exit_code, 1)
def test_unsuccessful_validation_multiple_instances(self):
first_errors = [
ValidationError("9", instance=1),
ValidationError("8", instance=1),
]
second_errors = [ValidationError("7", instance=2)]
stdout, stderr = NativeIO(), NativeIO()
exit_code = cli.run(
{
"validator": fake_validator(first_errors, second_errors),
"schema": {},
"instances": [1, 2],
"error_format": "{error.instance} - {error.message}\t",
},
stdout=stdout,
stderr=stderr,
)
self.assertFalse(stdout.getvalue())
self.assertEqual(stderr.getvalue(), "1 - 9\t1 - 8\t2 - 7\t")
self.assertEqual(exit_code, 1)
def test_version(self):
version = subprocess.check_output(
[sys.executable, "-m", "jsonschema", "--version"],
stderr=subprocess.STDOUT,
)
version = version.decode("utf-8").strip()
self.assertEqual(version, __version__)
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