api21NoHardware.java

  @Test
  @Config(sdk = Build.VERSION_CODES.LOLLIPOP)
  public void testFingerprintNoHardware_api21() throws Exception {
    // GIVEN: API21 android version
    ReactApplicationContext context = getRNContext();
    KeychainModule module = new KeychainModule(context);

    // WHEN: verify availability
    final int result = BiometricManager.from(context).canAuthenticate();
    final boolean isFingerprintAvailable = module.isFingerprintAuthAvailable();

    // THEN: in api lower 23 - biometric is not available at all
    assertThat(isFingerprintAvailable, is(false));
    assertThat(result, is(BiometricManager.BIOMETRIC_ERROR_NO_HARDWARE));

    // fingerprint hardware not available, minimal API for fingerprint is api23, Android 6.0
    // https://developer.android.com/about/versions/marshmallow/android-6.0
  }