def test_layers_created_from_template_resources(self):
resources = {
"Layer": {"Type": "AWS::Lambda::LayerVersion", "Properties": {"Content": {"Bucket": "bucket"}}},
"ServerlessLayer": {"Type": "AWS::Serverless::LayerVersion", "Properties": {"ContentUri": "/somepath"}},
}
list_of_layers = [
{"Ref": "Layer"},
{"Ref": "ServerlessLayer"},
"arn:aws:lambda:region:account-id:layer:layer-name:1",
{"NonRef": "Something"},
]
actual = SamFunctionProvider._parse_layer_info(
Mock(stack_path=STACK_PATH, location="template.yaml", resources=resources), list_of_layers
)
for (actual_layer, expected_layer) in zip(
actual,
[
LayerVersion("Layer", ".", stack_path=STACK_PATH),
LayerVersion("ServerlessLayer", "/somepath", stack_path=STACK_PATH),
LayerVersion("arn:aws:lambda:region:account-id:layer:layer-name:1", None, stack_path=STACK_PATH),
],
):
self.assertEqual(actual_layer, expected_layer)
def test_return_empty_list_on_no_layers(self):
resources = {"Function": {"Type": "AWS::Serverless::Function", "Properties": {}}}
actual = SamFunctionProvider._parse_layer_info(
Mock(stack_path=STACK_PATH, location="template.yaml", resources=resources), []
)
self.assertEqual(actual, [])
def test_return_empty_list_on_no_layers(self):
resources = {
"Function": {
"Type": "AWS::Serverless::Function",
"Properties": {}
}
}
actual = SamFunctionProvider._parse_layer_info([], resources)
self.assertEqual(actual, [])
def test_must_ignore_opt_in_AmazonLinux1803_layer(self):
resources = {}
list_of_layers = [
"arn:aws:lambda:region:account-id:layer:layer-name:1",
"arn:aws:lambda:::awslayer:AmazonLinux1803",
]
actual = SamFunctionProvider._parse_layer_info(list_of_layers, resources)
for (actual_layer, expected_layer) in zip(
actual, [LayerVersion("arn:aws:lambda:region:account-id:layer:layer-name:1", None)]
):
self.assertEqual(actual_layer, expected_layer)
def test_must_ignore_opt_in_AmazonLinux1803_layer(self):
resources = {}
list_of_layers = [
"arn:aws:lambda:region:account-id:layer:layer-name:1",
"arn:aws:lambda:::awslayer:AmazonLinux1803",
]
actual = SamFunctionProvider._parse_layer_info(
Mock(stack_path=STACK_PATH, location="template.yaml", resources=resources), list_of_layers
)
for (actual_layer, expected_layer) in zip(
actual, [LayerVersion("arn:aws:lambda:region:account-id:layer:layer-name:1", None, stack_path=STACK_PATH)]
):
self.assertEqual(actual_layer, expected_layer)
def test_raise_on_AmazonLinux1703_layer_provided(self, resources,
layer_reference):
with self.assertRaises(InvalidLayerVersionArn):
SamFunctionProvider._parse_layer_info([layer_reference], resources)
def test_raise_on_invalid_layer_resource(self, resources, layer_reference):
with self.assertRaises(InvalidLayerReference):
SamFunctionProvider._parse_layer_info([layer_reference], resources)
