Fix default HealthCheckGracePeriod

tests/test_autoscaling/test_launch_configurations_boto3.py

@@ -0,0 +1,23 @@
+from __future__ import unicode_literals
+import boto3
+
+import sure  # noqa
+
+from moto import mock_autoscaling
+
+
+@mock_autoscaling
+def test_create_launch_configuration():
+    client = boto3.client('autoscaling')
+    response = client.create_launch_configuration(
+        LaunchConfigurationName='tester',
+        ImageId='ami-abcd1234',
+        InstanceType='t1.micro',
+        KeyName='the_keys',
+        SecurityGroups=["default", "default2"],
+        UserData="This is some user_data",
+        InstanceMonitoring={'Enabled': True},
+        IamInstanceProfile='arn:aws:iam::123456789012:instance-profile/testing',
+        SpotPrice='0.1'
+    )
+    response['ResponseMetadata']['HTTPStatusCode'].should.equal(200)