public static Map<String, String> loadProperties(final File propertiesFile) {
    return loadProperties(ImmutableList.of(propertiesFile));
  }
@Test
  public void shouldLoadPropsFromFile() {
    // Given:
    givenPropsFileContains(
        "# Comment" + System.lineSeparator()
            + "some.prop=some value" + System.lineSeparator()
            + "some.other.prop=124" + System.lineSeparator()
    );

    // When:
    final Map<String, String> result = PropertiesUtil.loadProperties(propsFile);

    // Then:
    assertThat(result.get("some.prop"), is("some value"));
    assertThat(result.get("some.other.prop"), is("124"));
  }