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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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