### Question:
BooleanValue extends Value { @Override Value or (Value v) { return mValue || v.toBooleanValue ().mValue ? cTrueStringValue : cFalseStringValue; } BooleanValue(boolean value);   BooleanValue(String text); @Override String toString();  }### Answer:
@Test public void testOr () { assertEquals ("true", mTrueValue.or (mTrueValue).toString ()); assertEquals ("true", mTrueValue.or (mFalseValue).toString ()); assertEquals ("true", mFalseValue.or (mTrueValue).toString ()); assertEquals ("false", mFalseValue.or (mFalseValue).toString ()); }