r/api_management: setting identity_ids as a []interface{} so this…

…'ll be inferred

Fixes #10136

azurerm/internal/services/apimanagement/api_management_data_source_test.go

@@ -50,6 +50,26 @@ func TestAccDataSourceApiManagement_identitySystemAssigned(t *testing.T) {
 	})
 }
 
+func TestAccDataSourceApiManagement_identityUserAssigned(t *testing.T) {
+	data := acceptance.BuildTestData(t, "data.azurerm_api_management", "test")
+	r := ApiManagementDataSource{}
+
+	data.DataSourceTest(t, []resource.TestStep{
+		{
+			Config: r.identityUserAssigned(data),
+			Check: resource.ComposeTestCheckFunc(
+				check.That(data.ResourceName).Key("publisher_email").HasValue("[email protected]"),
+				check.That(data.ResourceName).Key("publisher_name").HasValue("pub1"),
+				check.That(data.ResourceName).Key("sku_name").HasValue("Developer_1"),
+				check.That(data.ResourceName).Key("tags.%").HasValue("0"),
+				check.That(data.ResourceName).Key("public_ip_addresses.#").Exists(),
+				check.That(data.ResourceName).Key("identity.#").HasValue("1"),
+				check.That(data.ResourceName).Key("identity.0.type").HasValue("UserAssigned"),
+			),
+		},
+	})
+}
+
 func TestAccDataSourceApiManagement_virtualNetwork(t *testing.T) {
 	data := acceptance.BuildTestData(t, "data.azurerm_api_management", "test")
 	r := ApiManagementDataSource{}
@@ -129,6 +149,18 @@ data "azurerm_api_management" "test" {
 `, data.RandomInteger, data.Locations.Primary, data.RandomInteger)
 }
 
+func (ApiManagementDataSource) identityUserAssigned(data acceptance.TestData) string {
+	template := ApiManagementResource{}.identityUserAssigned(data)
+	return fmt.Sprintf(`
+%s
+
+data "azurerm_api_management" "test" {
+  name                = azurerm_api_management.test.name
+  resource_group_name = azurerm_api_management.test.resource_group_name
+}
+`, template)
+}
+
 func (ApiManagementDataSource) virtualNetwork(data acceptance.TestData) string {
 	return fmt.Sprintf(`
 provider "azurerm" {

azurerm/internal/services/apimanagement/api_management_resource.go

@@ -1203,7 +1203,8 @@ func flattenAzureRmApiManagementMachineIdentity(identity *apimanagement.ServiceI
 			}
 			identityIds = append(identityIds, parsedId.ID())
 		}
-		result["identity_ids"] = schema.NewSet(schema.HashString, identityIds)
+		// not casting to a Set since this is a List in the DS and a Set in the Resource
+		result["identity_ids"] = identityIds
 	}
 
 	return []interface{}{result}, nil