chore: import upstream snapshot with attribution

testing/go/delete_test.go

@@ -0,0 +1,66 @@
+// Copyright 2025 Dolthub, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package _go
+
+import (
+	"testing"
+
+	"github.com/dolthub/go-mysql-server/sql"
+)
+
+func TestDelete(t *testing.T) {
+	RunScripts(t, []ScriptTest{
+		{
+			Name: "simple delete",
+			SetUpScript: []string{
+				"CREATE TABLE t123 (id int primary key, c1 varchar(100));",
+				"INSERT INTO t123 VALUES (1, 'one'), (2, 'two');",
+			},
+			Assertions: []ScriptTestAssertion{
+				{
+					Query:    "DELETE FROM t123 where id = 1;",
+					Expected: []sql.Row{},
+				},
+				{
+					Query:    "SELECT * FROM t123;",
+					Expected: []sql.Row{{2, "two"}},
+				},
+			},
+		},
+		{
+			Name: "delete returning",
+			SetUpScript: []string{
+				"CREATE TABLE t123 (id int primary key, c1 varchar(100));",
+				"INSERT INTO t123 VALUES (1, 'one'), (2, 'two'), (3, 'three');",
+			},
+			Assertions: []ScriptTestAssertion{
+				{
+					Query:    "DELETE FROM t123 where id = 1 RETURNING id, c1;",
+					Expected: []sql.Row{{1, "one"}},
+				},
+				{
+					// Test a DELETE with no filter, to test that we don't convert
+					// to a TRUNCATE operation
+					Query:    "DELETE FROM t123 RETURNING *;",
+					Expected: []sql.Row{{2, "two"}, {3, "three"}},
+				},
+				{
+					Query:    "SELECT * FROM t123;",
+					Expected: []sql.Row{},
+				},
+			},
+		},
+	})
+}