Allow lambda get function by arn and addded environment configuration

moto/awslambda/models.py

@@ -291,6 +291,8 @@ class LambdaFunction(BaseModel):
                 self.timeout = value
             elif key == "VpcConfig":
                 self.vpc_config = value
+            elif key == "Environment":
+                self.environment_vars = value["Variables"]
 
         return self.get_configuration()
 
@@ -589,7 +591,7 @@ class LambdaStorage(object):
     def _get_alias(self, name, alias):
         return self._functions[name]['alias'].get(alias, None)
 
-    def get_function(self, name, qualifier=None):
+    def get_function_by_name(self, name, qualifier=None):
         if name not in self._functions:
             return None
 
@@ -612,8 +614,8 @@ class LambdaStorage(object):
     def get_arn(self, arn):
         return self._arns.get(arn, None)
 
-    def get_function_by_name_or_arn(self, input):
-        return self.get_function(input) or self.get_arn(input)
+    def get_function_by_name_or_arn(self, input, qualifier=None):
+        return self.get_function_by_name(input, qualifier) or self.get_arn(input)
 
     def put_function(self, fn):
         """
@@ -671,7 +673,7 @@ class LambdaStorage(object):
                 return True
 
             else:
-                fn = self.get_function(name, qualifier)
+                fn = self.get_function_by_name(name, qualifier)
                 if fn:
                     self._functions[name]['versions'].remove(fn)
 
@@ -766,8 +768,8 @@ class LambdaBackend(BaseBackend):
     def publish_function(self, function_name):
         return self._lambdas.publish_function(function_name)
 
-    def get_function(self, function_name, qualifier=None):
-        return self._lambdas.get_function(function_name, qualifier)
+    def get_function(self, function_name_or_arn, qualifier=None):
+        return self._lambdas.get_function_by_name_or_arn(function_name_or_arn, qualifier)
 
     def list_versions_by_function(self, function_name):
         return self._lambdas.list_versions_by_function(function_name)
@@ -877,7 +879,7 @@ class LambdaBackend(BaseBackend):
             ]
 
         }
-        func = self._lambdas.get_function(function_name, qualifier)
+        func = self._lambdas.get_function_by_name_or_arn(function_name, qualifier)
         func.invoke(json.dumps(event), {}, {})
 
     def send_dynamodb_items(self, function_arn, items, source):

moto/awslambda/responses.py

@@ -276,7 +276,7 @@ class LambdaResponse(BaseResponse):
             return 404, {}, "{}"
 
     def _get_function(self, request, full_url, headers):
-        function_name = self.path.rsplit('/', 1)[-1]
+        function_name = unquote(self.path.rsplit('/', 1)[-1])
         qualifier = self._get_param('Qualifier', None)
 
         fn = self.lambda_backend.get_function(function_name, qualifier)

tests/test_awslambda/test_lambda.py

@@ -379,6 +379,7 @@ def test_get_function():
         Timeout=3,
         MemorySize=128,
         Publish=True,
+        Environment={"Variables": {"test_variable": "test_value"}}
     )
 
     result = conn.get_function(FunctionName='testFunction')
@@ -403,6 +404,9 @@ def test_get_function():
     result['Configuration']['Timeout'].should.equal(3)
     result['Configuration']['Version'].should.equal('$LATEST')
     result['Configuration'].should.contain('VpcConfig')
+    result['Configuration'].should.contain('Environment')
+    result['Configuration']['Environment'].should.contain('Variables')
+    result['Configuration']['Environment']["Variables"].should.equal({"test_variable": "test_value"})
 
     # Test get function with
     result = conn.get_function(FunctionName='testFunction', Qualifier='$LATEST')
@@ -414,6 +418,27 @@ def test_get_function():
     with assert_raises(ClientError):
         conn.get_function(FunctionName='junk', Qualifier='$LATEST')
 
+@mock_lambda
+@mock_s3
+def test_get_function_by_arn():
+    bucket_name = 'test-bucket'
+    s3_conn = boto3.client('s3', 'us-east-1')
+    s3_conn.create_bucket(Bucket=bucket_name)
+
+    zip_content = get_test_zip_file2()
+    s3_conn.put_object(Bucket=bucket_name, Key='test.zip', Body=zip_content)
+    conn = boto3.client('lambda', 'us-east-1')
+
+    fnc = conn.create_function(FunctionName='testFunction',
+                               Runtime='python2.7', Role='test-iam-role',
+                               Handler='lambda_function.lambda_handler',
+                               Code={'S3Bucket': bucket_name, 'S3Key': 'test.zip'},
+                               Description='test lambda function',
+                               Timeout=3, MemorySize=128, Publish=True)
+
+    result = conn.get_function(FunctionName=fnc['FunctionArn'])
+    result['Configuration']['FunctionName'].should.equal('testFunction')
+
 
 @mock_lambda
 @mock_s3
@@ -1346,6 +1371,7 @@ def test_update_configuration():
         Timeout=3,
         MemorySize=128,
         Publish=True,
+        Environment={'Variables': {"test_old_environment": "test_old_value"}}
     )
 
     assert fxn['Description'] == 'test lambda function'
@@ -1359,7 +1385,8 @@ def test_update_configuration():
         Description='updated test lambda function',
         Handler='lambda_function.new_lambda_handler',
         Runtime='python3.6',
-        Timeout=7
+        Timeout=7,
+        Environment={'Variables': {"test_environment": "test_value"}}
     )
 
     assert updated_config['ResponseMetadata']['HTTPStatusCode'] == 200
@@ -1368,6 +1395,7 @@ def test_update_configuration():
     assert updated_config['MemorySize'] == 128
     assert updated_config['Runtime'] == 'python3.6'
     assert updated_config['Timeout'] == 7
+    assert updated_config['Environment']['Variables'] == {"test_environment": "test_value"}
 
 
 @mock_lambda