@Test
void loadFromEnvironment() {

    CertificatesLoader loader = new CertificatesLoader(FileUtils.INSTANCE);
    Bundle bundle = new Bundle();
    loader.load(bundle, "cert1.cer", "CERTIFICATE");
    assertFalse(bundle.getCertificateFiles().isEmpty());
    assertEquals(1, bundle.getCertificateFiles().size());
    assertNotNull(bundle.getCertificateFiles().get("cert1"));
}