### Question:
ImmutableJsonBoolean extends AbstractJsonValue { @Override public String toString() { return String.valueOf(value); } private  ImmutableJsonBoolean(final boolean theValue); static ImmutableJsonBoolean of(final boolean value); @Override boolean isBoolean(); @Override boolean asBoolean(); @Override boolean equals(final Object o); @Override int hashCode(); @Override String toString(); @Override void writeValue(final SerializationContext serializationContext); @Override long getUpperBoundForStringSize();  }### Answer:
@Test public void toStringReturnsExpected() { final ImmutableJsonBoolean underTest = ImmutableJsonBoolean.FALSE; assertThat(underTest.toString()).isEqualTo("false"); }