diff --git a/cmd/cuepls/internal/test/integration/base/base_test.go b/cmd/cuepls/internal/test/integration/base/base_test.go
new file mode 100644
index 00000000000..ac5415a3b20
--- /dev/null
+++ b/cmd/cuepls/internal/test/integration/base/base_test.go
@@ -0,0 +1,33 @@
+//go:build !windows
+
+package feature
+
+import (
+	"testing"
+
+	"cuelang.org/go/internal/golangorgx/gopls/hooks"
+	. "cuelang.org/go/internal/golangorgx/gopls/test/integration"
+	"github.com/go-quicktest/qt"
+)
+
+func TestMain(m *testing.M) {
+	Main(m, hooks.Options)
+}
+
+func TestFormatFile(t *testing.T) {
+	const files = `
+-- go.mod --
+module mod.com
+
+go 1.12
+-- foo.go --
+	package foo
+`
+	Run(t, files, func(t *testing.T, env *Env) {
+		env.OpenFile("foo.go")
+		env.FormatBuffer("foo.go")
+		got := env.BufferText("foo.go")
+		want := "package foo\n"
+		qt.Assert(t, qt.Equals(got, want))
+	})
+}