public void testComplementOfEmptySetWithoutTypeDoesntWork() {
Set<SomeEnum> set = Collections.emptySet();
try {
Sets.complementOf(set);
fail();
} catch (IllegalArgumentException expected) {
}
}
public void testComplementOfEmptyEnumSetWithoutType() {
Set<SomeEnum> noUnits = EnumSet.noneOf(SomeEnum.class);
EnumSet<SomeEnum> allUnits = Sets.complementOf(noUnits);
verifySetContents(allUnits, EnumSet.allOf(SomeEnum.class));
}
public void testComplementOfFullSet() {
Set<SomeEnum> allUnits = Sets.newHashSet(SomeEnum.values());
EnumSet<SomeEnum> noUnits = Sets.complementOf(allUnits, SomeEnum.class);
verifySetContents(noUnits, EnumSet.noneOf(SomeEnum.class));
}
public void testComplementOfEmptySet() {
Set<SomeEnum> noUnits = Collections.emptySet();
EnumSet<SomeEnum> allUnits = Sets.complementOf(noUnits, SomeEnum.class);
verifySetContents(EnumSet.allOf(SomeEnum.class), allUnits);
}
public void testComplementOfRegularSetWithType() {
Set<SomeEnum> units = Sets.newHashSet(SomeEnum.B, SomeEnum.D);
EnumSet<SomeEnum> otherUnits = Sets.complementOf(units, SomeEnum.class);
verifySetContents(otherUnits, EnumSet.of(SomeEnum.A, SomeEnum.C));
}
public void testComplementOfEnumSet() {
Set<SomeEnum> units = EnumSet.of(SomeEnum.B, SomeEnum.D);
EnumSet<SomeEnum> otherUnits = Sets.complementOf(units);
verifySetContents(otherUnits, EnumSet.of(SomeEnum.A, SomeEnum.C));
}
