@Override
  public boolean isDetected() {
    return StringUtils.isNotBlank(system.envVariable("GITHUB_ACTION"));
  }
@Test
  public void isDetected() {
    setEnvVariable("GITHUB_ACTION", "build");
    assertThat(underTest.isDetected()).isTrue();

    setEnvVariable("GITHUB_ACTION", null);
    assertThat(underTest.isDetected()).isFalse();
  }