1 files changed, 40 insertions, 0 deletions
diff --git a/js/src/tests/non262/TypedArray/includes.js b/js/src/tests/non262/TypedArray/includes.js
new file mode 100644
index 0000000000..bcc50a2572
--- /dev/null
+++ b/js/src/tests/non262/TypedArray/includes.js
@@ -0,0 +1,40 @@
+for (var constructor of anyTypedArrayConstructors) {
+    assertEq(constructor.prototype.includes.length, 1);
+
+    assertEq(new constructor([1, 2, 3]).includes(1), true);
+    assertEq(new constructor([1, 2, 3]).includes(2), true);
+    assertEq(new constructor([1, 2, 3]).includes(3), true);
+    assertEq(new constructor([1, 2, 3]).includes(2, 1), true);
+    assertEq(new constructor([1, 2, 3]).includes(2, -2), true);
+    assertEq(new constructor([1, 2, 3]).includes(2, -100), true);
+
+    assertEq(new constructor([1, 2, 3]).includes("2"), false);
+    assertEq(new constructor([1, 2, 3]).includes(2, 2), false);
+    assertEq(new constructor([1, 2, 3]).includes(2, -1), false);
+    assertEq(new constructor([1, 2, 3]).includes(2, 100), false);
+
+    // Called from other globals.
+    if (typeof newGlobal === "function") {
+        var includes = newGlobal()[constructor.name].prototype.includes;
+        assertEq(includes.call(new constructor([1, 2, 3]), 2), true);
+    }
+
+    // Throws if `this` isn't a TypedArray.
+    var invalidReceivers = [undefined, null, 1, false, "", Symbol(), [], {}, /./,
+                            new Proxy(new constructor(), {})];
+    invalidReceivers.forEach(invalidReceiver => {
+        assertThrowsInstanceOf(() => {
+            constructor.prototype.includes.call(invalidReceiver);
+        }, TypeError, "Assert that reverse 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");
+        }
+    }).includes(2), true);
+}
+
+if (typeof reportCompare === "function")
+    reportCompare(true, true);