snapshot of https://github.com/ent/ent.git (master, 2026-09-15; blobs > 131072B omitted)

entc/integration/cascadelete/cascadelete_test.go

@@ -0,0 +1,41 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+package cascadelete
+
+import (
+	"context"
+	"testing"
+
+	"entgo.io/ent/entc/integration/cascadelete/ent"
+
+	_ "github.com/mattn/go-sqlite3"
+	"github.com/stretchr/testify/require"
+)
+
+func TestCascadeDelete(t *testing.T) {
+	client, err := ent.Open("sqlite3", "file:ent?mode=memory&cache=shared&_fk=1")
+	require.NoError(t, err)
+	defer client.Close()
+	ctx := context.Background()
+	require.NoError(t, client.Schema.Create(ctx))
+
+	author := client.User.Create().SaveX(ctx)
+	posts := client.Post.CreateBulk(
+		client.Post.Create(),
+		client.Post.Create().SetAuthor(author),
+		client.Post.Create().SetAuthor(author),
+	).SaveX(ctx)
+	comments := client.Comment.CreateBulk(
+		client.Comment.Create().SetText("Go").SetPost(posts[0]),
+		client.Comment.Create().SetText("Ent").SetPost(posts[1]),
+		client.Comment.Create().SetText("GraphQL").SetPost(posts[1]),
+	).SaveX(ctx)
+
+	t.Log("Delete the author with its 2 posts and their comments")
+	client.User.DeleteOne(author).ExecX(ctx)
+	require.Zero(t, client.User.Query().CountX(ctx))
+	require.Equal(t, posts[0].ID, client.Post.Query().OnlyIDX(ctx))
+	require.Equal(t, comments[0].ID, client.Comment.Query().OnlyIDX(ctx))
+}