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// 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))
}
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