@Test
public void validateNameReturnsTrueOnValidNames() throws Exception {

  assertThat(validName("hello")).isTrue();
  assertThat(validName("hello_world")).isTrue();
  assertThat(validName("Hello-World")).isTrue();
  assertThat(validName("foo.yml")).isTrue();
  assertThat(validName("I_am_secret.yml")).isTrue();
  assertThat(validName("I-am-secret.yml")).isTrue();
}