Add an additional test with multiple project metadata items (#222)

This additional test would have caught the error fixed in
8f75c1c

google/resource_compute_project_metadata_item_test.go

@@ -28,6 +28,26 @@ func TestAccComputeProjectMetadataItem_basic(t *testing.T) {
 	})
 }
 
+func TestAccComputeProjectMetadataItem_basicMultiple(t *testing.T) {
+	// Generate a config of two config keys
+	config := testAccProjectMetadataItem_basic("myKey", "myValue") +
+		testAccProjectMetadataItem_basic("myOtherKey", "myOtherValue")
+	resource.Test(t, resource.TestCase{
+		PreCheck:     func() { testAccPreCheck(t) },
+		Providers:    testAccProviders,
+		CheckDestroy: testAccCheckProjectMetadataItemDestroy,
+		Steps: []resource.TestStep{
+			{
+				Config: config,
+				Check: resource.ComposeTestCheckFunc(
+					testAccCheckProjectMetadataItem_hasMetadata("myKey", "myValue"),
+					testAccCheckProjectMetadataItem_hasMetadata("myOtherKey", "myOtherValue"),
+				),
+			},
+		},
+	})
+}
+
 func TestAccComputeProjectMetadataItem_basicWithEmptyVal(t *testing.T) {
 	// Key must be unique to avoid concurrent tests interfering with each other
 	key := "myKey" + acctest.RandString(10)
@@ -120,9 +140,9 @@ func testAccCheckProjectMetadataItemDestroy(s *terraform.State) error {
 
 func testAccProjectMetadataItem_basic(key, val string) string {
 	return fmt.Sprintf(`
-resource "google_compute_project_metadata_item" "foobar" {
+resource "google_compute_project_metadata_item" "foobar-%s" {
   key   = "%s"
   value = "%s"
 }
-`, key, val)
+`, acctest.RandString(10), key, val)
 }