assertThat(properties.getProperty("a"), is("A"));
    }

    /**
     * {@link org.codelibs.core.io.PropertiesUtil#load(Properties, URL)}
     */
    @Test
    public void testLoadPropertiesUrlThrowIOException() {
        exception.expect(IORuntimeException.class);
        exception.expectMessage(is("[ECL0040]IOException occurred, because java.io.IOException: load"));