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helm/expandybird/expansion/schema_validation_test.py

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# Copyright 2015 The Kubernetes Authors All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
import unittest
import schema_validation
import yaml
INVALID_PROPERTIES = "Invalid properties for 'template.py'"
def GetFilePath():
"""Find our source and data files."""
return os.path.dirname(os.path.abspath(__file__))
def ReadTestFile(filename):
"""Returns contents of a file from the testdata/ directory."""
full_path = os.path.join(GetFilePath(), '..', 'test', 'schemas', filename)
return open(full_path, 'r').read()
def RawValidate(raw_properties, schema_name, raw_schema):
return ImportsRawValidate(raw_properties, schema_name,
{schema_name: raw_schema})
def ImportsRawValidate(raw_properties, schema_name, import_map):
"""Takes raw properties, calls validate and returns yaml properties."""
properties = yaml.safe_load(raw_properties)
return schema_validation.Validate(properties, schema_name, 'template.py',
import_map)
class SchemaValidationTest(unittest.TestCase):
"""Tests of the schema portion of the template expansion library."""
def testDefaults(self):
schema_name = 'defaults.jinja.schema'
schema = ReadTestFile(schema_name)
empty_properties = ''
expected_properties = """
alpha: alpha
one: 1
"""
self.assertEqual(yaml.safe_load(expected_properties),
RawValidate(empty_properties, schema_name, schema))
def testNestedDefaults(self):
schema_name = 'nested_defaults.py.schema'
schema = ReadTestFile(schema_name)
properties = """
zone: us-central1-a
disks:
- name: backup # diskType and sizeGb set by default
- name: cache # sizeGb set by default
diskType: pd-ssd
- name: data # Nothing set by default
diskType: pd-ssd
sizeGb: 150
- name: swap # diskType set by default
sizeGb: 200
"""
expected_properties = """
zone: us-central1-a
disks:
- sizeGb: 100
diskType: pd-standard
name: backup
- sizeGb: 100
diskType: pd-ssd
name: cache
- sizeGb: 150
diskType: pd-ssd
name: data
- sizeGb: 200
diskType: pd-standard
name: swap
"""
self.assertEqual(yaml.safe_load(expected_properties),
RawValidate(properties, schema_name, schema))
def testNestedRefDefaults(self):
schema_name = 'ref_nested_defaults.py.schema'
schema = ReadTestFile(schema_name)
properties = """
zone: us-central1-a
disks:
- name: backup # diskType and sizeGb set by default
- name: cache # sizeGb set by default
diskType: pd-ssd
- name: data # Nothing set by default
diskType: pd-ssd
sizeGb: 150
- name: swap # diskType set by default
sizeGb: 200
"""
expected_properties = """
zone: us-central1-a
disks:
- sizeGb: 100
diskType: pd-standard
name: backup
- sizeGb: 100
diskType: pd-ssd
name: cache
- sizeGb: 150
diskType: pd-ssd
name: data
- sizeGb: 200
diskType: pd-standard
name: swap
"""
self.assertEqual(yaml.safe_load(expected_properties),
RawValidate(properties, schema_name, schema))
def testInvalidDefault(self):
schema_name = 'invalid_default.jinja.schema'
schema = ReadTestFile(schema_name)
empty_properties = ''
try:
RawValidate(empty_properties, schema_name, schema)
self.fail('Validation should fail')
except schema_validation.ValidationErrors as e:
self.assertEqual(1, len(e.errors))
self.assertIn(INVALID_PROPERTIES, e.message)
self.assertIn("'string' is not of type 'integer' at ['number']",
e.message)
def testRequiredDefault(self):
schema_name = 'required_default.jinja.schema'
schema = ReadTestFile(schema_name)
empty_properties = ''
expected_properties = """
name: my_name
"""
self.assertEqual(yaml.safe_load(expected_properties),
RawValidate(empty_properties, schema_name, schema))
def testRequiredDefaultReference(self):
schema_name = 'req_default_ref.py.schema'
schema = ReadTestFile(schema_name)
empty_properties = ''
try:
RawValidate(empty_properties, schema_name, schema)
self.fail('Validation should fail')
except schema_validation.ValidationErrors as e:
self.assertEqual(1, len(e.errors))
self.assertIn(INVALID_PROPERTIES, e.message)
self.assertIn("'my_name' is not of type 'integer' at ['number']",
e.message)
def testDefaultReference(self):
schema_name = 'default_ref.jinja.schema'
schema = ReadTestFile(schema_name)
empty_properties = ''
expected_properties = 'number: 1'
self.assertEqual(yaml.safe_load(expected_properties),
RawValidate(empty_properties, schema_name, schema))
def testMissingQuoteInReference(self):
schema_name = 'missing_quote.py.schema'
schema = ReadTestFile(schema_name)
properties = 'number: 1'
try:
RawValidate(properties, schema_name, schema)
self.fail('Validation should fail')
except schema_validation.ValidationErrors as e:
self.assertEqual(2, len(e.errors))
self.assertIn("Invalid schema '%s'" % schema_name, e.message)
self.assertIn("type 'NoneType' is not iterable", e.message)
self.assertIn('around your reference', e.message)
def testRequiredPropertyMissing(self):
schema_name = 'required.jinja.schema'
schema = ReadTestFile(schema_name)
empty_properties = ''
try:
RawValidate(empty_properties, schema_name, schema)
self.fail('Validation should fail')
except schema_validation.ValidationErrors as e:
self.assertEqual(1, len(e.errors))
self.assertIn(INVALID_PROPERTIES, e.message)
self.assertIn("'name' is a required property", e.errors[0].message)
def testRequiredPropertyValid(self):
schema_name = 'required.jinja.schema'
schema = ReadTestFile(schema_name)
properties = """
name: my-name
"""
self.assertEqual(yaml.safe_load(properties),
RawValidate(properties, schema_name, schema))
def testMultipleErrors(self):
schema_name = 'defaults.py.schema'
schema = ReadTestFile(schema_name)
properties = """
one: not a number
alpha: 12345
"""
try:
RawValidate(properties, schema_name, schema)
self.fail('Validation should fail')
except schema_validation.ValidationErrors as e:
self.assertEqual(2, len(e.errors))
self.assertIn(INVALID_PROPERTIES, e.message)
self.assertIn("'not a number' is not of type 'integer' at ['one']",
e.message)
self.assertIn("12345 is not of type 'string' at ['alpha']", e.message)
def testNumbersValid(self):
schema_name = 'numbers.py.schema'
schema = ReadTestFile(schema_name)
properties = """
minimum0: 0
exclusiveMin0: 1
maximum10: 10
exclusiveMax10: 9
even: 20
odd: 21
"""
self.assertEquals(yaml.safe_load(properties),
RawValidate(properties, schema_name, schema))
def testNumbersInvalid(self):
schema_name = 'numbers.py.schema'
schema = ReadTestFile(schema_name)
properties = """
minimum0: -1
exclusiveMin0: 0
maximum10: 11
exclusiveMax10: 10
even: 21
odd: 20
"""
try:
RawValidate(properties, schema_name, schema)
self.fail('Validation should fail')
except schema_validation.ValidationErrors as e:
self.assertEqual(6, len(e.errors))
self.assertIn(INVALID_PROPERTIES, e.message)
self.assertIn("-1 is less than the minimum of 0 at ['minimum0']",
e.message)
self.assertIn(('0 is less than or equal to the minimum of 0'
" at ['exclusiveMin0']"), e.message)
self.assertIn("11 is greater than the maximum of 10 at ['maximum10']",
e.message)
self.assertIn(('10 is greater than or equal to the maximum of 10'
" at ['exclusiveMax10']"), e.message)
self.assertIn("21 is not a multiple of 2 at ['even']", e.message)
self.assertIn("{'multipleOf': 2} is not allowed for 20 at ['odd']",
e.message)
def testReference(self):
schema_name = 'reference.jinja.schema'
schema = ReadTestFile(schema_name)
properties = """
odd: 6
"""
try:
RawValidate(properties, schema_name, schema)
self.fail('Validation should fail')
except schema_validation.ValidationErrors as e:
self.assertEqual(1, len(e.errors))
self.assertIn('even', e.message)
self.assertIn('is not allowed for 6', e.message)
def testBadSchema(self):
schema_name = 'bad.jinja.schema'
schema = ReadTestFile(schema_name)
empty_properties = ''
try:
RawValidate(empty_properties, schema_name, schema)
self.fail('Validation should fail')
except schema_validation.ValidationErrors as e:
self.assertEqual(2, len(e.errors))
self.assertIn("Invalid schema '%s'" % schema_name, e.message)
self.assertIn("u'minimum' is a dependency of u'exclusiveMinimum'",
e.message)
self.assertIn("0 is not of type u'boolean'", e.message)
def testInvalidReference(self):
schema_name = 'invalid_reference.py.schema'
schema = ReadTestFile(schema_name)
properties = 'odd: 1'
try:
RawValidate(properties, schema_name, schema)
self.fail('Validation should fail')
except schema_validation.ValidationErrors as e:
self.assertEqual(1, len(e.errors))
self.assertIn("Invalid schema '%s'" % schema_name, e.message)
self.assertIn('Unresolvable JSON pointer', e.message)
def testInvalidReferenceInSchema(self):
schema_name = 'invalid_reference_schema.py.schema'
schema = ReadTestFile(schema_name)
empty_properties = ''
try:
RawValidate(empty_properties, schema_name, schema)
self.fail('Validation should fail')
except schema_validation.ValidationErrors as e:
self.assertEqual(1, len(e.errors))
self.assertIn("Invalid schema '%s'" % schema_name, e.message)
self.assertIn('Unresolvable JSON pointer', e.message)
def testMetadata(self):
schema_name = 'metadata.py.schema'
schema = ReadTestFile(schema_name)
properties = """
one: 2
alpha: beta
"""
self.assertEquals(yaml.safe_load(properties),
RawValidate(properties, schema_name, schema))
def testInvalidInput(self):
schema_name = 'schema'
schema = """
info:
title: Invalid Input
properties: invalid
"""
properties = """
one: 2
alpha: beta
"""
try:
RawValidate(properties, schema_name, schema)
self.fail('Validation should fail')
except schema_validation.ValidationErrors as e:
self.assertEqual(1, len(e.errors))
self.assertIn("Invalid schema '%s'" % schema_name, e.message)
self.assertIn("'invalid' is not of type u'object'", e.message)
def testPattern(self):
schema_name = 'schema'
schema = r"""
properties:
bad-zone:
pattern: \w+-\w+-\w+
zone:
pattern: \w+-\w+-\w+
"""
properties = """
bad-zone: abc
zone: us-central1-a
"""
try:
RawValidate(properties, schema_name, schema)
self.fail('Validation should fail')
except schema_validation.ValidationErrors as e:
self.assertEqual(1, len(e.errors))
self.assertIn('Invalid properties', e.message)
self.assertIn("'abc' does not match", e.message)
self.assertIn('bad-zone', e.message)
def testUniqueItems(self):
schema_name = 'schema'
schema = """
properties:
bad-list:
type: array
uniqueItems: true
list:
type: array
uniqueItems: true
"""
properties = """
bad-list:
- a
- b
- a
list:
- a
- b
- c
"""
try:
RawValidate(properties, schema_name, schema)
self.fail('Validation should fail')
except schema_validation.ValidationErrors as e:
self.assertEqual(1, len(e.errors))
self.assertIn('Invalid properties', e.message)
self.assertIn('has non-unique elements', e.message)
self.assertIn('bad-list', e.message)
def testUniqueItemsOnString(self):
schema_name = 'schema'
schema = """
properties:
ok-string:
type: string
uniqueItems: true
string:
type: string
uniqueItems: true
"""
properties = """
ok-string: aaa
string: abc
"""
self.assertEquals(yaml.safe_load(properties),
RawValidate(properties, schema_name, schema))
def testRequiredTopLevel(self):
schema_name = 'schema'
schema = """
info:
title: Invalid Input
required:
- name
"""
properties = """
one: 2
alpha: beta
"""
try:
RawValidate(properties, schema_name, schema)
self.fail('Validation should fail')
except schema_validation.ValidationErrors as e:
self.assertEqual(1, len(e.errors))
self.assertIn(INVALID_PROPERTIES, e.message)
self.assertIn("'name' is a required property", e.message)
def testEmptySchemaProperties(self):
schema_name = 'schema'
schema = """
info:
title: Empty Input
properties:
"""
properties = """
one: 2
alpha: beta
"""
try:
RawValidate(properties, schema_name, schema)
self.fail('Validation should fail')
except schema_validation.ValidationErrors as e:
self.assertEqual(1, len(e.errors))
self.assertIn("Invalid schema '%s'" % schema_name, e.message)
self.assertIn("None is not of type u'object' at [u'properties']",
e.message)
def testNoInput(self):
schema = """
info:
title: No other sections
"""
properties = """
one: 2
alpha: beta
"""
self.assertEquals(yaml.safe_load(properties),
RawValidate(properties, 'schema', schema))
def testEmptySchema(self):
schema = ''
properties = """
one: 2
alpha: beta
"""
self.assertEquals(yaml.safe_load(properties),
RawValidate(properties, 'schema', schema))
def testImportPathSchema(self):
schema = """
imports:
- path: a
- path: path/to/b
name: b
"""
properties = """
one: 2
alpha: beta
"""
import_map = {'schema': schema,
'a': '',
'b': ''}
self.assertEquals(yaml.safe_load(properties),
ImportsRawValidate(properties, 'schema', import_map))
def testImportSchemaMissing(self):
schema = ''
empty_properties = ''
try:
properties = yaml.safe_load(empty_properties)
schema_validation.Validate(properties, 'schema', 'template',
{'wrong_name': schema})
self.fail('Validation should fail')
except schema_validation.ValidationErrors as e:
self.assertEqual(1, len(e.errors))
self.assertIn("Could not find schema file 'schema'", e.message)
def testImportsMalformedNotAList(self):
schema_name = 'schema'
schema = """
imports: not-a-list
"""
empty_properties = ''
try:
RawValidate(empty_properties, schema_name, schema)
self.fail('Validation should fail')
except schema_validation.ValidationErrors as e:
self.assertEqual(1, len(e.errors))
self.assertIn("Invalid schema '%s'" % schema_name, e.message)
self.assertIn("is not of type 'array' at ['imports']", e.message)
def testImportsMalformedMissingPath(self):
schema_name = 'schema'
schema = """
imports:
- name: no_path.yaml
"""
empty_properties = ''
try:
RawValidate(empty_properties, schema_name, schema)
self.fail('Validation should fail')
except schema_validation.ValidationErrors as e:
self.assertEqual(1, len(e.errors))
self.assertIn("Invalid schema '%s'" % schema_name, e.message)
self.assertIn("'path' is a required property", e.message)
def testImportsMalformedNonunique(self):
schema_name = 'schema'
schema = """
imports:
- path: a.yaml
name: a
- path: a.yaml
name: a
"""
empty_properties = ''
try:
RawValidate(empty_properties, schema_name, schema)
self.fail('Validation should fail')
except schema_validation.ValidationErrors as e:
self.assertEqual(1, len(e.errors))
self.assertIn("Invalid schema '%s'" % schema_name, e.message)
self.assertIn('non-unique elements', e.message)
def testImportsMalformedAdditionalProperties(self):
schema_name = 'schema'
schema = """
imports:
- path: a.yaml
gnome: a
"""
empty_properties = ''
try:
RawValidate(empty_properties, schema_name, schema)
self.fail('Validation should fail')
except schema_validation.ValidationErrors as e:
self.assertEqual(1, len(e.errors))
self.assertIn("Invalid schema '%s'" % schema_name, e.message)
self.assertIn('Additional properties are not allowed'
" ('gnome' was unexpected)", e.message)
def testImportAndInputErrors(self):
schema = """
imports:
- path: file
required:
- name
"""
empty_properties = ''
try:
RawValidate(empty_properties, 'schema', schema)
self.fail('Validation should fail')
except schema_validation.ValidationErrors as e:
self.assertEqual(2, len(e.errors))
self.assertIn("'file' requested in schema 'schema'", e.message)
self.assertIn("'name' is a required property", e.message)
def testImportAndInputSchemaErrors(self):
schema_name = 'schema'
schema = """
imports: not-a-list
required: not-a-list
"""
empty_properties = ''
try:
RawValidate(empty_properties, schema_name, schema)
self.fail('Validation should fail')
except schema_validation.ValidationErrors as e:
self.assertEqual(2, len(e.errors))
self.assertIn("Invalid schema '%s'" % schema_name, e.message)
self.assertIn("is not of type 'array' at ['imports']", e.message)
self.assertIn("is not of type u'array' at [u'required']", e.message)
if __name__ == '__main__':
unittest.main()
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