1 files changed, 48 insertions, 0 deletions
diff --git a/js/src/tests/non262/TypedArray/join.js b/js/src/tests/non262/TypedArray/join.js
new file mode 100644
index 0000000000..0e797320fd
--- /dev/null
+++ b/js/src/tests/non262/TypedArray/join.js
@@ -0,0 +1,48 @@
+for (var constructor of anyTypedArrayConstructors) {
+    assertEq(constructor.prototype.join.length, 1);
+
+    assertEq(new constructor([1, 2, 3]).join(), "1,2,3");
+    assertEq(new constructor([1, 2, 3]).join(undefined), "1,2,3");
+    assertEq(new constructor([1, 2, 3]).join(null), "1null2null3");
+    assertEq(new constructor([1, 2, 3]).join(""), "123");
+    assertEq(new constructor([1, 2, 3]).join("+"), "1+2+3");
+    assertEq(new constructor([1, 2, 3]).join(.1), "10.120.13");
+    assertEq(new constructor([1, 2, 3]).join({toString(){return "foo"}}), "1foo2foo3");
+    assertEq(new constructor([1]).join("-"), "1");
+    assertEq(new constructor().join(), "");
+    assertEq(new constructor().join("*"), "");
+    assertEq(new constructor(1).join(), "0");
+    assertEq(new constructor(3).join(), "0,0,0");
+
+    assertThrowsInstanceOf(() => new constructor().join({toString(){throw new TypeError}}), TypeError);
+    assertThrowsInstanceOf(() => new constructor().join(Symbol()), TypeError);
+
+    // Called from other globals.
+    if (typeof newGlobal === "function") {
+        var join = newGlobal()[constructor.name].prototype.join;
+        assertEq(join.call(new constructor([1, 2, 3]), "\t"), "1\t2\t3");
+    }
+
+    // Throws if `this` isn't a TypedArray.
+    var invalidReceivers = [undefined, null, 1, false, "", Symbol(), [], {}, /./,
+                            new Proxy(new constructor(), {})];
+    invalidReceivers.forEach(invalidReceiver => {
+        assertThrowsInstanceOf(() => {
+            constructor.prototype.join.call(invalidReceiver);
+        }, TypeError, "Assert that join fails if this value is not a TypedArray");
+    });
+
+    // Test that the length getter is never called.
+    assertEq(Object.defineProperty(new constructor([1, 2, 3]), "length", {
+        get() {
+            throw new Error("length accessor called");
+        }
+    }).join("\0"), "1\0002\0003");
+}
+
+for (let constructor of anyTypedArrayConstructors.filter(isFloatConstructor)) {
+    assertDeepEq(new constructor([null, , NaN]).join(), "0,NaN,NaN");
+}
+
+if (typeof reportCompare === "function")
+    reportCompare(true, true);