@Test
public void testParseOutputSettingsNoOutputFormats() {

    OutputSettings outputSettings = instance.parseOutputSettings(
            "outputOptions:\n"
                    + "    outputPassVariantsOnly: true\n"
                    + "    numGenes: 1\n"
                    + "    outputPrefix: results/Pfeiffer-hiphive\n"
                    + "    outputFormats:\n");
    Set<OutputFormat> outputFormats = EnumSet.noneOf(OutputFormat.class);
    assertThat(outputSettings.getOutputFormats(), equalTo((outputFormats)));
}