r/aws_globalaccelerator_endpoint_group: Add '_disappears' acceptance …

…test (hashicorp#13527, hashicorp#13826).

Acceptance test output:

$ make testacc TEST=./aws/ TESTARGS='-run=TestAccAwsGlobalAcceleratorEndpointGroup_disappears'
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./aws -v -count 1 -parallel 20 -run=TestAccAwsGlobalAcceleratorEndpointGroup_disappears -timeout 120m
=== RUN   TestAccAwsGlobalAcceleratorEndpointGroup_disappears
=== PAUSE TestAccAwsGlobalAcceleratorEndpointGroup_disappears
=== CONT  TestAccAwsGlobalAcceleratorEndpointGroup_disappears
--- PASS: TestAccAwsGlobalAcceleratorEndpointGroup_disappears (191.83s)
PASS
ok  	github.com/terraform-providers/terraform-provider-aws/aws	191.883s

aws/resource_aws_globalaccelerator_endpoint_group_test.go

@@ -44,6 +44,27 @@ func TestAccAwsGlobalAcceleratorEndpointGroup_basic(t *testing.T) {
 	})
 }
 
+func TestAccAwsGlobalAcceleratorEndpointGroup_disappears(t *testing.T) {
+	resourceName := "aws_globalaccelerator_endpoint_group.test"
+	rName := acctest.RandomWithPrefix("tf-acc-test")
+
+	resource.ParallelTest(t, resource.TestCase{
+		PreCheck:     func() { testAccPreCheck(t) },
+		Providers:    testAccProviders,
+		CheckDestroy: testAccCheckGlobalAcceleratorEndpointGroupDestroy,
+		Steps: []resource.TestStep{
+			{
+				Config: testAccGlobalAcceleratorEndpointGroupConfigBasic(rName),
+				Check: resource.ComposeTestCheckFunc(
+					testAccCheckGlobalAcceleratorEndpointGroupExists(resourceName),
+					testAccCheckResourceDisappears(testAccProvider, resourceAwsGlobalAcceleratorEndpointGroup(), resourceName),
+				),
+				ExpectNonEmptyPlan: true,
+			},
+		},
+	})
+}
+
 func TestAccAwsGlobalAcceleratorEndpointGroup_ALBEndpoint_ClientIP(t *testing.T) {
 	var vpc ec2.Vpc
 	resourceName := "aws_globalaccelerator_endpoint_group.test"