Adding cloudformation-validate. Cfn-lint does the heavy lifting.

tests/test_cloudformation/test_validate.py

@@ -0,0 +1,115 @@
+from collections import OrderedDict
+import json
+import yaml
+import os
+import boto3
+from nose.tools import raises
+import botocore
+
+
+from moto.cloudformation.exceptions import ValidationError
+from moto.cloudformation.models import FakeStack
+from moto.cloudformation.parsing import resource_class_from_type, parse_condition, Export
+from moto.sqs.models import Queue
+from moto.s3.models import FakeBucket
+from moto.cloudformation.utils import yaml_tag_constructor
+from boto.cloudformation.stack import Output
+from moto import mock_cloudformation, mock_s3, mock_sqs, mock_ec2
+
+json_template = {
+    "AWSTemplateFormatVersion": "2010-09-09",
+    "Description": "Stack 1",
+    "Resources": {
+        "EC2Instance1": {
+            "Type": "AWS::EC2::Instance",
+            "Properties": {
+                "ImageId": "ami-d3adb33f",
+                "KeyName": "dummy",
+                "InstanceType": "t2.micro",
+                "Tags": [
+                    {
+                        "Key": "Description",
+                        "Value": "Test tag"
+                    },
+                    {
+                        "Key": "Name",
+                        "Value": "Name tag for tests"
+                    }
+                ]
+            }
+        }
+    }
+}
+
+# One resource is required
+json_bad_template = {
+    "AWSTemplateFormatVersion": "2010-09-09",
+    "Description": "Stack 1"
+}
+
+dummy_template_json = json.dumps(json_template)
+dummy_bad_template_json = json.dumps(json_bad_template)
+
+
+@mock_cloudformation
+def test_boto3_json_validate_successful():
+    cf_conn = boto3.client('cloudformation', region_name='us-east-1')
+    response = cf_conn.validate_template(
+        TemplateBody=dummy_template_json,
+    )
+    assert response['Description'] == "Stack 1"
+    assert response['Parameters'] == []
+    assert response['ResponseMetadata']['HTTPStatusCode'] == 200
+
+@mock_cloudformation
+def test_boto3_json_invalid_missing_resource():
+    cf_conn = boto3.client('cloudformation', region_name='us-east-1')
+    try:
+        cf_conn.validate_template(
+            TemplateBody=dummy_bad_template_json,
+        )
+        assert False
+    except botocore.exceptions.ClientError as e:
+        assert str(e) == 'An error occurred (ValidationError) when calling the ValidateTemplate operation: Stack' \
+                         ' with id Missing top level item Resources to file module does not exist'
+        assert True
+
+
+yaml_template = """
+    AWSTemplateFormatVersion: '2010-09-09'
+    Description: Simple CloudFormation Test Template
+    Resources:
+      S3Bucket:
+        Type: AWS::S3::Bucket
+        Properties:
+          AccessControl: PublicRead
+          BucketName: cf-test-bucket-1
+"""
+
+yaml_bad_template = """
+    AWSTemplateFormatVersion: '2010-09-09'
+    Description: Simple CloudFormation Test Template
+"""
+
+@mock_cloudformation
+def test_boto3_yaml_validate_successful():
+    cf_conn = boto3.client('cloudformation', region_name='us-east-1')
+    response = cf_conn.validate_template(
+        TemplateBody=yaml_template,
+    )
+    assert response['Description'] == "Simple CloudFormation Test Template"
+    assert response['Parameters'] == []
+    assert response['ResponseMetadata']['HTTPStatusCode'] == 200
+
+@mock_cloudformation
+def test_boto3_yaml_invalid_missing_resource():
+    cf_conn = boto3.client('cloudformation', region_name='us-east-1')
+    try:
+        cf_conn.validate_template(
+            TemplateBody=yaml_bad_template,
+        )
+        assert False
+    except botocore.exceptions.ClientError as e:
+        assert str(e) == 'An error occurred (ValidationError) when calling the ValidateTemplate operation: Stack' \
+                         ' with id Missing top level item Resources to file module does not exist'
+        assert True