1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/testing/xpcshell/example/unit/test_do_check_matches.js Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,37 @@
1.4 +/* Any copyright is dedicated to the Public Domain.
1.5 + * http://creativecommons.org/publicdomain/zero/1.0/ */
1.6 +
1.7 +function run_test() {
1.8 + do_check_matches({x:1}, {x:1}); // pass
1.9 + todo_check_matches({x:1}, {}); // fail: all pattern props required
1.10 + todo_check_matches({x:1}, {x:2}); // fail: values must match
1.11 + do_check_matches({x:1}, {x:1, y:2}); // pass: extra props tolerated
1.12 +
1.13 + // Property order is irrelevant.
1.14 + do_check_matches({x:"foo", y:"bar"}, {y:"bar", x:"foo"});// pass
1.15 +
1.16 + do_check_matches({x:undefined}, {x:1});// pass: 'undefined' is wildcard
1.17 + do_check_matches({x:undefined}, {x:2});
1.18 + todo_check_matches({x:undefined}, {y:2});// fail: 'x' must still be there
1.19 +
1.20 + // Patterns nest.
1.21 + do_check_matches({a:1, b:{c:2,d:undefined}}, {a:1, b:{c:2,d:3}});
1.22 +
1.23 + // 'length' property counts, even if non-enumerable.
1.24 + do_check_matches([3,4,5], [3,4,5]); // pass
1.25 + todo_check_matches([3,4,5], [3,5,5]); // fail; value doesn't match
1.26 + todo_check_matches([3,4,5], [3,4,5,6]);// fail; length doesn't match
1.27 +
1.28 + // functions in patterns get applied.
1.29 + do_check_matches({foo:function (v) v.length == 2}, {foo:"hi"});// pass
1.30 + todo_check_matches({foo:function (v) v.length == 2}, {bar:"hi"});// fail
1.31 + todo_check_matches({foo:function (v) v.length == 2}, {foo:"hello"});// fail
1.32 +
1.33 + // We don't check constructors, prototypes, or classes. However, if
1.34 + // pattern has a 'length' property, we require values to match that as
1.35 + // well, even if 'length' is non-enumerable in the pattern. So arrays
1.36 + // are useful as patterns.
1.37 + do_check_matches({0:0, 1:1, length:2}, [0,1]); // pass
1.38 + do_check_matches({0:1}, [1,2]); // pass
1.39 + do_check_matches([0], {0:0, length:1}); // pass
1.40 +}
