### Question:
BooleanUtil { public static boolean isTrueOrNull(final Boolean b) { return b == null || b; } private  BooleanUtil(); static boolean ifTrue(final Boolean bool, final Runnable runnable); static boolean isTrueOrNull(final Boolean b); static boolean isFalseOrNull(final Boolean b); static boolean isTrue(final Boolean b); static boolean isFalse(final Boolean b); static boolean isTrue(final String str);  }### Answer:
@Test public void testIsTrueOrNull() { assertTrue("null", BooleanUtil.isTrueOrNull(null)); assertTrue("Boolean.TRUE", BooleanUtil.isTrueOrNull(Boolean.TRUE)); assertTrue("true", BooleanUtil.isTrueOrNull(true)); assertFalse("Boolean.FALSE", BooleanUtil.isTrueOrNull(Boolean.FALSE)); assertFalse("false", BooleanUtil.isTrueOrNull(false)); }