r/aws_cloudwatch_event_permission: Add 'TestAccAWSCloudWatchEventPerm…

…ission_PartnerEventBus'.

Acceptance test output:

$ EVENT_BRIDGE_PARTNER_EVENT_BUS_NAME=aws.partner/datadog.com/TerraformTesting make testacc TEST=./aws/ TESTARGS='-run=TestAccAWSCloudWatchEventPermission_PartnerEventBus'
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./aws -v -count 1 -parallel 20 -run=TestAccAWSCloudWatchEventPermission_PartnerEventBus -timeout 180m
=== RUN   TestAccAWSCloudWatchEventPermission_PartnerEventBus
=== PAUSE TestAccAWSCloudWatchEventPermission_PartnerEventBus
=== CONT  TestAccAWSCloudWatchEventPermission_PartnerEventBus
    resource_aws_cloudwatch_event_permission_test.go:328: Step 1/2 error: Error running apply: exit status 1
        2021/03/29 17:37:22 [DEBUG] Using modified User-Agent: Terraform/0.12.26 HashiCorp-terraform-exec/0.13.0

        Error: Creating CloudWatch Events permission failed: ValidationException: 1 validation error detected: Value 'aws.partner/datadog.com/TerraformTesting' at 'eventBusName' failed to satisfy constraint: Member must satisfy regular expression pattern: [\.\-_A-Za-z0-9]+
        	status code: 400, request id: 8329ec8c-828c-4048-a665-60aaafd76f0d

          on terraform_plugin_test.tf line 2, in resource "aws_cloudwatch_event_permission" "test":
           2: resource "aws_cloudwatch_event_permission" "test" {

--- FAIL: TestAccAWSCloudWatchEventPermission_PartnerEventBus (3.87s)
FAIL
FAIL	github.com/terraform-providers/terraform-provider-aws/aws	3.961s
FAIL
GNUmakefile:27: recipe for target 'testacc' failed
make: *** [testacc] Error 1

aws/resource_aws_cloudwatch_event_permission_test.go

@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"log"
+	"os"
 	"regexp"
 	"testing"
 	"time"
@@ -314,6 +315,40 @@ func TestAccAWSCloudWatchEventPermission_Disappears(t *testing.T) {
 	})
 }
 
+func TestAccAWSCloudWatchEventPermission_PartnerEventBus(t *testing.T) {
+	key := "EVENT_BRIDGE_PARTNER_EVENT_BUS_NAME"
+	busName := os.Getenv(key)
+	if busName == "" {
+		t.Skipf("Environment variable %s is not set", key)
+	}
+
+	rName := acctest.RandomWithPrefix("tf-acc-test")
+	resourceName := "aws_cloudwatch_event_permission.test"
+
+	resource.ParallelTest(t, resource.TestCase{
+		PreCheck:     func() { testAccPreCheck(t) },
+		ErrorCheck:   testAccErrorCheck(t, cloudwatchevents.EndpointsID),
+		Providers:    testAccProviders,
+		CheckDestroy: testAccCheckCloudWatchEventPermissionDestroy,
+		Steps: []resource.TestStep{
+			{
+				Config: testAccCheckAwsCloudWatchEventPermissionPartnerEventBusConfig(rName, busName),
+				Check: resource.ComposeTestCheckFunc(
+					testAccCheckCloudWatchEventPermissionExists(resourceName),
+					resource.TestCheckResourceAttr(resourceName, "event_bus_name", busName),
+					resource.TestCheckResourceAttr(resourceName, "principal", "111111111111"),
+					resource.TestCheckResourceAttr(resourceName, "statement_id", rName),
+				),
+			},
+			{
+				ResourceName:      resourceName,
+				ImportState:       true,
+				ImportStateVerify: true,
+			},
+		},
+	})
+}
+
 func testAccCheckCloudWatchEventPermissionExists(pr string) resource.TestCheckFunc {
 	return func(s *terraform.State) error {
 		conn := testAccProvider.Meta().(*AWSClient).cloudwatcheventsconn
@@ -473,3 +508,13 @@ resource "aws_cloudwatch_event_permission" "test2" {
 }
 `, principal1, statementID1, principal2, statementID2)
 }
+
+func testAccCheckAwsCloudWatchEventPermissionPartnerEventBusConfig(rName, eventBusName string) string {
+	return fmt.Sprintf(`
+resource "aws_cloudwatch_event_permission" "test" {
+  principal      = "111111111111"
+  statement_id   = %[1]q
+  event_bus_name = %[2]q
+}
+`, rName, eventBusName)
+}