Function to set labels.

api/testutils/filtertest/runfilter.go

@@ -0,0 +1,30 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package filtertest_test
+
+import (
+	"bytes"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"sigs.k8s.io/kustomize/kyaml/kio"
+)
+
+func RunFilter(t *testing.T, input string, f kio.Filter) string {
+	var out bytes.Buffer
+	rw := kio.ByteReadWriter{
+		Reader: bytes.NewBufferString(input),
+		Writer: &out,
+	}
+
+	err := kio.Pipeline{
+		Inputs:  []kio.Reader{&rw},
+		Filters: []kio.Filter{f},
+		Outputs: []kio.Writer{&rw},
+	}.Execute()
+	if !assert.NoError(t, err) {
+		t.FailNow()
+	}
+	return out.String()
+}