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66 lines
1.5 KiB
JavaScript
66 lines
1.5 KiB
JavaScript
_("Make sure lock prevents calling with a shared lock");
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Cu.import("resource://services-sync/util.js");
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function run_test() {
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let ret, rightThis, didCall;
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let state, lockState, lockedState, unlockState;
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let obj = {
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_lock: Utils.lock,
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lock: function() {
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lockState = ++state;
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if (this._locked) {
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lockedState = ++state;
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return false;
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}
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this._locked = true;
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return true;
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},
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unlock: function() {
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unlockState = ++state;
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this._locked = false;
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},
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func: function() this._lock(function() {
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rightThis = this == obj;
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didCall = true;
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return 5;
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})(),
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throwy: function() this._lock(function() {
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rightThis = this == obj;
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didCall = true;
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this.throwy();
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})()
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};
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_("Make sure a normal call will call and return");
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rightThis = didCall = false;
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state = 0;
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ret = obj.func();
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do_check_eq(ret, 5);
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do_check_true(rightThis);
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do_check_true(didCall);
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do_check_eq(lockState, 1);
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do_check_eq(unlockState, 2);
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do_check_eq(state, 2);
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_("Make sure code that calls locked code throws");
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ret = null;
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rightThis = didCall = false;
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try {
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ret = obj.throwy();
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do_throw("throwy internal call should have thrown!");
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}
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catch(ex) {
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do_check_eq(ex, "Could not acquire lock");
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}
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do_check_eq(ret, null);
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do_check_true(rightThis);
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do_check_true(didCall);
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_("Lock should be called twice so state 3 is skipped");
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do_check_eq(lockState, 4);
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do_check_eq(lockedState, 5);
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do_check_eq(unlockState, 6);
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do_check_eq(state, 6);
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}
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