@Override
  public ConfigData get(String path) {
    assertNoPath(path);
    return new ConfigData(getEnv());
  }
@Test
  public void testNonExistingEnvReturnsEmpty() {
    Set<String> set = new HashSet<>();
    set.add("NON_EXISTING_ENV");
    ConfigData actual;

    try (EnvConfigProvider configProvider = new EnvConfigProvider()) {
      actual = configProvider.get("", set);
    }

    assertEquals(0, actual.data().size());
  }