fixed diff in publishing_options

.changelog/5045.txt

@@ -0,0 +1,3 @@
+```release-note:bug
+privateca: fixed a permadiff bug for `publishing_options` on `google_privateca_ca_pool` when both attributes set false
+```

google/resource_privateca_ca_pool.go

@@ -434,10 +434,11 @@ An object containing a list of "key": value pairs. Example: { "name": "wrench",
 				Elem: &schema.Schema{Type: schema.TypeString},
 			},
 			"publishing_options": {
-				Type:        schema.TypeList,
-				Optional:    true,
-				Description: `The PublishingOptions to follow when issuing Certificates from any CertificateAuthority in this CaPool.`,
-				MaxItems:    1,
+				Type:             schema.TypeList,
+				Optional:         true,
+				DiffSuppressFunc: emptyOrUnsetBlockDiffSuppress,
+				Description:      `The PublishingOptions to follow when issuing Certificates from any CertificateAuthority in this CaPool.`,
+				MaxItems:         1,
 				Elem: &schema.Resource{
 					Schema: map[string]*schema.Schema{
 						"publish_ca_cert": {

google/resource_privateca_ca_pool_test.go

@@ -276,3 +276,45 @@ resource "google_privateca_ca_pool" "default" {
 }
 `, context)
 }
+
+func TestAccPrivatecaCaPool_privatecaCapoolEmptyPublishingOptions(t *testing.T) {
+	t.Parallel()
+
+	context := map[string]interface{}{
+		"random_suffix": randString(t, 10),
+	}
+
+	vcrTest(t, resource.TestCase{
+		PreCheck:     func() { testAccPreCheck(t) },
+		Providers:    testAccProviders,
+		CheckDestroy: testAccCheckPrivatecaCaPoolDestroyProducer(t),
+		Steps: []resource.TestStep{
+			{
+				Config: testAccPrivatecaCaPool_privatecaCapoolEmptyPublishingOptions(context),
+			},
+			{
+				ResourceName:            "google_privateca_ca_pool.default",
+				ImportState:             true,
+				ImportStateVerify:       true,
+				ImportStateVerifyIgnore: []string{"name", "location"},
+			},
+		},
+	})
+}
+
+func testAccPrivatecaCaPool_privatecaCapoolEmptyPublishingOptions(context map[string]interface{}) string {
+	return Nprintf(`
+resource "google_privateca_ca_pool" "default" {
+  name = "tf-test-my-capool%{random_suffix}"
+  location = "us-central1"
+  tier = "ENTERPRISE"
+  publishing_options {
+    publish_ca_cert = false
+    publish_crl = false
+  }
+  labels = {
+    foo = "bar"
+  }
+}
+`, context)
+}