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-rw-r--r--js/src/jit-test/tests/collections/WeakSet-constructor-add.js178
1 files changed, 178 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/collections/WeakSet-constructor-add.js b/js/src/jit-test/tests/collections/WeakSet-constructor-add.js
new file mode 100644
index 0000000000..b883e074f1
--- /dev/null
+++ b/js/src/jit-test/tests/collections/WeakSet-constructor-add.js
@@ -0,0 +1,178 @@
+load(libdir + "asserts.js");
+load(libdir + "iteration.js");
+
+var k1 = {};
+var k2 = {};
+var k3 = {};
+var k4 = {};
+
+function test_patched() {
+ let orig = WeakSet.prototype.add;
+
+ // If adder is modified, constructor should call it.
+ var called = false;
+
+ WeakSet.prototype.add = function(k, v) {
+ assertEq(k, k1);
+ orig.call(this, k2);
+ called = true;
+ };
+
+ var arr = [k1];
+
+ var m = new WeakSet(arr);
+
+ assertEq(called, true);
+ assertEq(m.has(k1), false);
+ assertEq(m.has(k2), true);
+
+ WeakSet.prototype.add = orig;
+}
+
+function test_proxy1() {
+ let orig = WeakSet.prototype.add;
+
+ // If adder is modified, constructor should call it.
+ var called = false;
+
+ WeakSet.prototype.add = new Proxy(function(k, v) {
+ assertEq(k, k1);
+ orig.call(this, k2);
+ called = true;
+ }, {});
+
+ var arr = [k1];
+
+ var m = new WeakSet(arr);
+
+ assertEq(called, true);
+ assertEq(m.has(k1), false);
+ assertEq(m.has(k2), true);
+
+ WeakSet.prototype.add = orig;
+}
+
+function test_proxy2() {
+ let orig = WeakSet.prototype.add;
+
+ // If adder is modified, constructor should call it.
+ var called = false;
+
+ WeakSet.prototype.add = new Proxy(function() {
+ }, {
+ apply: function(target, that, args) {
+ var [k, v] = args;
+ assertEq(k, k1);
+ orig.call(that, k2);
+ called = true;
+ }
+ });
+
+ var arr = [k1];
+
+ var m = new WeakSet(arr);
+
+ assertEq(called, true);
+ assertEq(m.has(k1), false);
+ assertEq(m.has(k2), true);
+
+ WeakSet.prototype.add = orig;
+}
+
+function test_change1() {
+ let orig = WeakSet.prototype.add;
+
+ // Change to adder in GetIterator(..) call should be ignored.
+ var called = false;
+ var modified = false;
+
+ var arr = [k1];
+
+ var proxy_arr = new Proxy(arr, {
+ get: function(target, name) {
+ if (name == Symbol.iterator) {
+ modified = true;
+ WeakSet.prototype.add = function() {
+ called = true;
+ };
+ }
+ return target[name];
+ }
+ });
+
+ var m = new WeakSet(proxy_arr);
+
+ assertEq(modified, true);
+ assertEq(called, false);
+ assertEq(m.has(k1), true);
+ assertEq(m.has(k2), false);
+
+ WeakSet.prototype.add = orig;
+}
+
+function test_change2() {
+ let orig = WeakSet.prototype.add;
+
+ // Change to adder in adder(...) call should be ignored.
+ var called = false;
+ var count = 0;
+
+ WeakSet.prototype.add = function(k, v) {
+ if (count == 0) {
+ assertEq(k, k1);
+ orig.call(this, k3);
+ WeakSet.prototype.add = function() {
+ called = true;
+ };
+ count = 1;
+ } else {
+ assertEq(k, k2);
+ orig.call(this, k4);
+ count = 2;
+ }
+ };
+
+ var arr = [k1, k2];
+
+ var m = new WeakSet(arr);
+
+ assertEq(called, false);
+ assertEq(count, 2);
+ assertEq(m.has(k1), false);
+ assertEq(m.has(k2), false);
+ assertEq(m.has(k3), true);
+ assertEq(m.has(k4), true);
+
+ WeakSet.prototype.add = orig;
+}
+
+function test_error() {
+ let orig = WeakSet.prototype.add;
+
+ var arr = [k1];
+
+ // WeakSet should throw TypeError if adder is not callable.
+ WeakSet.prototype.add = null;
+ assertThrowsInstanceOf(() => new WeakSet(arr), TypeError);
+ WeakSet.prototype.add = {};
+ assertThrowsInstanceOf(() => new WeakSet(arr), TypeError);
+
+ // WeakSet should propagate error thrown by adder.
+ WeakSet.prototype.add = function() {
+ throw SyntaxError();
+ };
+ assertThrowsInstanceOf(() => new WeakSet(arr), SyntaxError);
+
+ WeakSet.prototype.add = orig;
+}
+
+function test() {
+ test_patched();
+ test_proxy1();
+ test_proxy2();
+ test_change1();
+ test_change2();
+ test_error();
+}
+
+test();