Feature to update maximum_batching_window_in_seconds in aws lambda event source mapping for SQS event source type

aws/resource_aws_lambda_event_source_mapping.go

@@ -364,9 +364,9 @@ func resourceAwsLambdaEventSourceMappingUpdate(d *schema.ResourceData, meta inte
 		return fmt.Errorf("Error updating event source mapping: %s", err)
 	}
 
-	if eventSourceArn.Service != "sqs" {
-		params.MaximumBatchingWindowInSeconds = aws.Int64(int64(d.Get("maximum_batching_window_in_seconds").(int)))
+	params.MaximumBatchingWindowInSeconds = aws.Int64(int64(d.Get("maximum_batching_window_in_seconds").(int)))
 
+	if eventSourceArn.Service != "sqs" {
 		if parallelizationFactor, ok := d.GetOk("parallelization_factor"); ok {
 			params.SetParallelizationFactor(int64(parallelizationFactor.(int)))
 		}

aws/resource_aws_lambda_event_source_mapping_test.go

@@ -209,6 +209,43 @@ func TestAccAWSLambdaEventSourceMapping_sqs_withFunctionName(t *testing.T) {
 	})
 }
 
+func TestAccAWSLambdaEventSourceMapping_SQSBatchWindow(t *testing.T) {
+	var conf lambda.EventSourceMappingConfiguration
+
+	rName := acctest.RandomWithPrefix("tf-acc-test")
+	resourceName := "aws_lambda_event_source_mapping.test"
+	batchWindow := int64(0)
+	batchWindowUpdate := int64(100)
+
+	resource.ParallelTest(t, resource.TestCase{
+		PreCheck:     func() { testAccPreCheck(t) },
+		Providers:    testAccProviders,
+		CheckDestroy: testAccCheckLambdaEventSourceMappingDestroy,
+		Steps: []resource.TestStep{
+			{
+				Config: testAccAWSLambdaEventSourceMappingConfigSqsWithBatchWindow(rName, batchWindow),
+				Check: resource.ComposeTestCheckFunc(
+					testAccCheckAwsLambdaEventSourceMappingExists(resourceName, &conf),
+					resource.TestCheckResourceAttr(resourceName, "maximum_batching_window_in_seconds", strconv.Itoa(int(batchWindow))),
+				),
+			},
+			{
+				ResourceName:            resourceName,
+				ImportState:             true,
+				ImportStateVerify:       true,
+				ImportStateVerifyIgnore: []string{"enabled", "starting_position"},
+			},
+			{
+				Config: testAccAWSLambdaEventSourceMappingConfigSqsWithBatchWindow(rName, batchWindowUpdate),
+				Check: resource.ComposeTestCheckFunc(
+					testAccCheckAwsLambdaEventSourceMappingExists(resourceName, &conf),
+					resource.TestCheckResourceAttr(resourceName, "maximum_batching_window_in_seconds", strconv.Itoa(int(batchWindowUpdate))),
+				),
+			},
+		},
+	})
+}
+
 func TestAccAWSLambdaEventSourceMapping_kinesis_disappears(t *testing.T) {
 	var conf lambda.EventSourceMappingConfiguration
 
@@ -1451,3 +1488,70 @@ resource "aws_lambda_event_source_mapping" "lambda_event_source_mapping_test" {
 }
 `, roleName, policyName, attName, streamName, funcName)
 }
+
+func testAccAWSLambdaEventSourceMappingConfigSQSBase(rName string) string {
+	return fmt.Sprintf(`
+resource "aws_iam_role" "test" {
+  name = %q
+
+  assume_role_policy = <<EOF
+{
+  "Version": "2012-10-17",
+  "Statement": [
+    {
+      "Action": "sts:AssumeRole",
+      "Principal": {
+        "Service": "lambda.amazonaws.com"
+      },
+      "Effect": "Allow",
+      "Sid": ""
+    }
+  ]
+}
+EOF
+}
+
+resource "aws_iam_role_policy" "test" {
+  role = aws_iam_role.test.name
+
+  policy = <<EOF
+{
+  "Version": "2012-10-17",
+  "Statement": [
+    {
+      "Effect": "Allow",
+      "Action": [
+        "sqs:*"
+      ],
+      "Resource": "*"
+    }
+  ]
+}
+EOF
+}
+
+resource "aws_sqs_queue" "test" {
+  name = %q
+}
+
+resource "aws_lambda_function" "test" {
+  filename      = "test-fixtures/lambdatest.zip"
+  function_name = %q
+  handler       = "exports.example"
+  role          = aws_iam_role.test.arn
+  runtime       = "nodejs12.x"
+}
+`, rName, rName, rName)
+}
+
+func testAccAWSLambdaEventSourceMappingConfigSqsWithBatchWindow(rName string, batchWindow int64) string {
+	return testAccAWSLambdaEventSourceMappingConfigSQSBase(rName) + fmt.Sprintf(`
+resource "aws_lambda_event_source_mapping" "test" {
+  batch_size                         = 10
+  maximum_batching_window_in_seconds = %d
+  event_source_arn                   = aws_sqs_queue.test.arn
+  enabled                            = false
+  function_name                      = aws_lambda_function.test.arn
+}
+`, batchWindow)
+}