@Test
void load() throws IOException {

    createCertificates("cert1.cer", "cert2.cer", "cert3.cer");
    CertificatesLoader loader = new CertificatesLoader(FileUtils.INSTANCE);
    Bundle bundle = new Bundle();
    loader.load(bundle, rootProjectDir.getRoot());
    assertFalse(bundle.getCertificateFiles().isEmpty());
    assertEquals(3, bundle.getCertificateFiles().size());
    assertNotNull(bundle.getCertificateFiles().get("cert1"));
    assertNotNull(bundle.getCertificateFiles().get("cert2"));
    assertNotNull(bundle.getCertificateFiles().get("cert3"));
}