1 files changed, 164 insertions, 0 deletions
diff --git a/js/src/tests/non262/Reflect/argumentsList.js b/js/src/tests/non262/Reflect/argumentsList.js
new file mode 100644
index 0000000000..1cd5984f00
--- /dev/null
+++ b/js/src/tests/non262/Reflect/argumentsList.js
@@ -0,0 +1,164 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/ */
+
+// Tests for the argumentList argument to Reflect.apply and Reflect.construct.
+
+// Reflect.apply and Reflect.construct require an argumentList argument that must be an object.
+assertThrowsInstanceOf(() => Reflect.apply(Math.min, undefined),  // missing
+                       TypeError);
+assertThrowsInstanceOf(() => Reflect.construct(Object),  // missing
+                       TypeError);
+for (var primitive of SOME_PRIMITIVE_VALUES) {
+    assertThrowsInstanceOf(() => Reflect.apply(Math.min, undefined, primitive),
+                           TypeError);
+    assertThrowsInstanceOf(() => Reflect.construct(Object, primitive),
+                           TypeError);
+}
+
+// Array used by several tests below.
+var BOTH = [
+    Reflect.apply,
+    // Adapt Reflect.construct to accept the same arguments as Reflect.apply.
+    (target, thisArgument, argumentList) => Reflect.construct(target, argumentList)
+];
+
+// The argumentList is copied and becomes the list of arguments passed to the function.
+function getRest(...x) { return x; }
+var args = [1, 2, 3];
+for (var method of BOTH) {
+    var result = method(getRest, undefined, args);
+    assertEq(result.join(), args.join());
+    assertEq(result !== args, true);
+}
+
+// argumentList.length can be less than func.length.
+function testLess(a, b, c, d, e) {
+    assertEq(a, 1);
+    assertEq(b, true);
+    assertEq(c, "three");
+    assertEq(d, Symbol.for);
+    assertEq(e, undefined);
+
+    assertEq(arguments.length, 4);
+    assertEq(arguments !== args, true);
+    return "ok";
+}
+args = [1, true, "three", Symbol.for];
+assertEq(Reflect.apply(testLess, undefined, args), "ok");
+assertEq(Reflect.construct(testLess, args) instanceof testLess, true);
+
+// argumentList.length can be more than func.length.
+function testMoar(a) {
+    assertEq(a, args[0]);
+    return "good";
+}
+assertEq(Reflect.apply(testMoar, undefined, args), "good");
+assertEq(Reflect.construct(testMoar, args) instanceof testMoar, true);
+
+// argumentList can be any object with a .length property.
+function getArgs(...args) {
+    return args;
+}
+for (var method of BOTH) {
+    assertDeepEq(method(getArgs, undefined, {length: 0}),
+                 []);
+    assertDeepEq(method(getArgs, undefined, {length: 1, "0": "zero"}),
+                 ["zero"]);
+    assertDeepEq(method(getArgs, undefined, {length: 2}),
+                 [undefined, undefined]);
+    assertDeepEq(method(getArgs, undefined, function (a, b, c) {}),
+                 [undefined, undefined, undefined]);
+}
+
+// The Iterable/Iterator interfaces are not used.
+var funnyArgs = {
+    0: "zero",
+    1: "one",
+    length: 2,
+    [Symbol.iterator]() { throw "FAIL 1"; },
+    next() { throw "FAIL 2"; }
+};
+for (var method of BOTH) {
+    assertDeepEq(method(getArgs, undefined, funnyArgs),
+                 ["zero", "one"]);
+}
+
+// If argumentList has no .length property, no arguments are passed.
+function count() { return {numArgsReceived: arguments.length}; }
+for (var method of BOTH) {
+    assertEq(method(count, undefined, {"0": 0, "1": 1}).numArgsReceived,
+             0);
+    function* g() { yield 1; yield 2; }
+    assertEq(method(count, undefined, g()).numArgsReceived,
+             0);
+}
+
+// If argumentsList.length has a getter, it is called.
+var log;
+args = {
+    get length() { log += "L"; return 1; },
+    get "0"() { log += "0"; return "zero"; },
+    get "1"() { log += "1"; return "one"; }
+};
+for (var method of BOTH) {
+    log = "";
+    assertDeepEq(method(getArgs, undefined, args),
+                 ["zero"]);
+    assertEq(log, "L0");
+}
+
+// The argumentsList.length getter can throw; the exception is propagated.
+var exc = {status: "bad"};
+args = {
+    get length() { throw exc; }
+};
+for (var method of BOTH) {
+    assertThrowsValue(() => method(count, undefined, args), exc);
+}
+
+// If argumentsList.length is unreasonably huge, we get an error.
+// (This is an implementation limit.)
+for (var method of BOTH) {
+    for (var value of [1e12, 1e240, Infinity]) {
+        assertThrowsInstanceOf(() => method(count, undefined, {length: value}),
+                               Error);
+    }
+}
+
+// argumentsList.length is converted to an integer.
+for (var value of [1.7, "1", {valueOf() { return "1"; }}]) {
+    args = {
+        length: value,
+        "0": "ponies"
+    };
+    for (var method of BOTH) {
+        var result = method(getArgs, undefined, args);
+        assertEq(result.length, 1);
+        assertEq(result[0], "ponies");
+    }
+}
+
+// If argumentsList.length is negative or NaN, no arguments are passed.
+for (var method of BOTH) {
+    for (var num of [-1, -0.1, -0, -1e99, -Infinity, NaN]) {
+        assertEq(method(count, undefined, {length: num}).numArgsReceived,
+                 0);
+    }
+}
+
+// Many arguments can be passed.
+var many = 65537;
+var args = {length: many, 0: "zero", [many - 1]: "last"};
+function testMany(...args) {
+    for (var i = 0; i < many; i++) {
+        assertEq(i in args, true);
+        assertEq(args[i], i === 0 ? "zero" : i === many - 1 ? "last" : undefined);
+    }
+    return this;
+}
+assertEq(Reflect.apply(testMany, "pass", args).toString(), "pass");
+assertEq(Reflect.construct(testMany, args) instanceof testMany, true);
+assertEq(Reflect.apply(new Proxy(testMany, {}), "pass", args).toString(), "pass");
+assertEq(Reflect.construct(new Proxy(testMany, {}), args) instanceof testMany, true);
+
+reportCompare(0, 0);