chore: import upstream snapshot with attribution

testing/go/lock_test.go

@@ -0,0 +1,69 @@
+// 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"
+)
+
+// TestLocks tests the advisory lock functions, such as pg_try_advisory_lock and pg_advisory_unlock.
+func TestAdvisoryLocks(t *testing.T) {
+	RunScripts(t, []ScriptTest{
+		{
+			Name: "basic lock tests",
+			SetUpScript: []string{
+				`CREATE USER user1 PASSWORD 'password';`,
+			},
+			Assertions: []ScriptTestAssertion{
+				{
+					Query:    `SELECT pg_advisory_lock(1)`,
+					Expected: []sql.Row{{"t"}},
+				},
+				{
+					Query:    `SELECT pg_try_advisory_lock(2)`,
+					Expected: []sql.Row{{"t"}},
+				},
+				{
+					// When a different session tries to acquire the same lock, it fails.
+					Username: "user1",
+					Password: "password",
+					Query:    `SELECT pg_try_advisory_lock(1)`,
+					Expected: []sql.Row{{"f"}},
+				},
+				{
+					// When a different session tries to acquire the same lock, it fails.
+					Username: "user1",
+					Password: "password",
+					Query:    `SELECT pg_try_advisory_lock(2)`,
+					Expected: []sql.Row{{"f"}},
+				},
+				{
+					Query:    `SELECT pg_advisory_unlock(1)`,
+					Expected: []sql.Row{{"t"}},
+				},
+				{
+					Query:    `SELECT pg_advisory_unlock(2)`,
+					Expected: []sql.Row{{"t"}},
+				},
+				{
+					Query:    `SELECT pg_advisory_unlock(3)`,
+					Expected: []sql.Row{{"f"}},
+				},
+			},
+		},
+	})
+}