if err != nil {
		t.Fatalf("Unable to create temporary file. %v", err)
	}
	defer os.Remove(tempFile1)

	tempFile2, err := createTempFile("public-cert-file",
		`-----BEGIN CERTIFICATE-----
MIICdTCCAd4CCQCO5G/W1xcE9TANBgkqhkiG9w0BAQUFADB/MQswCQYDVQQGEwJa
WTEOMAwGA1UECBMFTWluaW8xETAPBgNVBAcTCEludGVybmV0MQ4wDAYDVQQKEwVN
aW5pbzEOMAwGA1UECxMFTWluaW8xDjAMBgNVBAMTBU1pbmlvMR0wGwYJKoZIhvcN