test_utils_sets.js

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/* Any copyright is dedicated to the Public Domain.

 * http://creativecommons.org/publicdomain/zero/1.0/ */

"use strict";

const EMPTY = new Set();

const A = new Set(["a"]);

const ABC = new Set(["a", "b", "c"]);

const ABCD = new Set(["a", "b", "c", "d"]);

const BC = new Set(["b", "c"]);

const BCD = new Set(["b", "c", "d"]);

const FGH = new Set(["f", "g", "h"]);

const BCDFGH = new Set(["b", "c", "d", "f", "g", "h"]);

var union = CommonUtils.union;

var difference = CommonUtils.difference;

var intersection = CommonUtils.intersection;

var setEqual = CommonUtils.setEqual;

function do_check_setEqual(a, b) {

  Assert.ok(setEqual(a, b));

function do_check_not_setEqual(a, b) {

  Assert.ok(!setEqual(a, b));

add_test(function test_setEqual() {

  do_check_setEqual(EMPTY, EMPTY);

  do_check_setEqual(EMPTY, new Set());

  do_check_setEqual(A, A);

  do_check_setEqual(A, new Set(["a"]));

  do_check_setEqual(new Set(["a"]), A);

  do_check_not_setEqual(A, EMPTY);

  do_check_not_setEqual(EMPTY, A);

  do_check_not_setEqual(ABC, A);

  run_next_test();

});

add_test(function test_union() {

  do_check_setEqual(EMPTY, union(EMPTY, EMPTY));

  do_check_setEqual(ABC, union(EMPTY, ABC));

  do_check_setEqual(ABC, union(ABC, ABC));

  do_check_setEqual(ABCD, union(ABC, BCD));

  do_check_setEqual(ABCD, union(BCD, ABC));

  do_check_setEqual(BCDFGH, union(BCD, FGH));

  run_next_test();

});

add_test(function test_difference() {

  do_check_setEqual(EMPTY, difference(EMPTY, EMPTY));

  do_check_setEqual(EMPTY, difference(EMPTY, A));

  do_check_setEqual(EMPTY, difference(A, A));

  do_check_setEqual(ABC, difference(ABC, EMPTY));

  do_check_setEqual(ABC, difference(ABC, FGH));

  do_check_setEqual(A, difference(ABC, BCD));

  run_next_test();

});

add_test(function test_intersection() {

  do_check_setEqual(EMPTY, intersection(EMPTY, EMPTY));

  do_check_setEqual(EMPTY, intersection(ABC, EMPTY));

  do_check_setEqual(EMPTY, intersection(ABC, FGH));

  do_check_setEqual(BC, intersection(ABC, BCD));

  run_next_test();

});