1 files changed, 46 insertions, 0 deletions
diff --git a/test/built-ins/TypedArray/prototype/indexOf/BigInt/search-found-returns-index.js b/test/built-ins/TypedArray/prototype/indexOf/BigInt/search-found-returns-index.js
new file mode 100644
index 000000000..e932c2689
--- /dev/null
+++ b/test/built-ins/TypedArray/prototype/indexOf/BigInt/search-found-returns-index.js
@@ -0,0 +1,46 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-%typedarray%.prototype.indexof
+description: returns index for the first found element
+info: |
+  22.2.3.13 %TypedArray%.prototype.indexOf (searchElement [ , fromIndex ] )
+
+  %TypedArray%.prototype.indexOf is a distinct function that implements the same
+  algorithm as Array.prototype.indexOf as defined in 22.1.3.12 except that the
+  this object's [[ArrayLength]] internal slot is accessed in place of performing
+  a [[Get]] of "length".
+
+  22.1.3.12 Array.prototype.indexOf ( searchElement [ , fromIndex ] )
+
+  ...
+  6. If n ≥ 0, then
+    a. If n is -0, let k be +0; else let k be n.
+  7. Else n < 0,
+    a. Let k be len + n.
+    b. If k < 0, let k be 0.
+  8. Repeat, while k < len
+    a. Let kPresent be ? HasProperty(O, ! ToString(k)).
+    b. If kPresent is true, then
+      i. Let elementK be ? Get(O, ! ToString(k)).
+      ii. Let same be the result of performing Strict Equality Comparison
+      searchElement === elementK.
+      iii. If same is true, return k.
+  ...
+includes: [testBigIntTypedArray.js]
+features: [BigInt, TypedArray]
+---*/
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+  var sample = new TA(convertToBigInt([42, 43, 42, 41]));
+  assert.sameValue(sample.indexOf(convertToBigInt(42)), 0, "indexOf(42)");
+  assert.sameValue(sample.indexOf(convertToBigInt(43)), 1, "indexOf(43)");
+  assert.sameValue(sample.indexOf(convertToBigInt(43), 1), 1, "indexOf(43, 1)");
+  assert.sameValue(sample.indexOf(convertToBigInt(42), 1), 2, "indexOf(42, 1)");
+  assert.sameValue(sample.indexOf(convertToBigInt(42), 2), 2, "indexOf(42, 2)");
+
+  assert.sameValue(sample.indexOf(convertToBigInt(42), -4), 0, "indexOf(42, -4)");
+  assert.sameValue(sample.indexOf(convertToBigInt(42), -3), 2, "indexOf(42, -3)");
+  assert.sameValue(sample.indexOf(convertToBigInt(42), -2), 2, "indexOf(42, -2)");
+  assert.sameValue(sample.indexOf(convertToBigInt(42), -5), 0, "indexOf(42, -5)");
+});