libcontainer/utils/utils_test.go

package utils

import "testing"

func TestGenerateName(t *testing.T) {
	name, err := GenerateRandomName("veth", 5)
	if err != nil {
		t.Fatal(err)
	}

	expected := 5 + len("veth")
	if len(name) != expected {
		t.Fatalf("expected name to be %d chars but received %d", expected, len(name))
	}

	name, err = GenerateRandomName("veth", 65)
	if err != nil {
		t.Fatal(err)
	}

	expected = 64 + len("veth")
	if len(name) != expected {
		t.Fatalf("expected name to be %d chars but received %d", expected, len(name))
	}
}