1 files changed, 48 insertions, 0 deletions
diff --git a/test/built-ins/TypedArray/prototype/subarray/BigInt/tointeger-begin.js b/test/built-ins/TypedArray/prototype/subarray/BigInt/tointeger-begin.js
new file mode 100644
index 000000000..6a7885155
--- /dev/null
+++ b/test/built-ins/TypedArray/prototype/subarray/BigInt/tointeger-begin.js
@@ -0,0 +1,48 @@
+// 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.subarray
+description: ToInteger(begin)
+info: |
+  22.2.3.27 %TypedArray%.prototype.subarray( begin , end )
+
+  ...
+  7. Let relativeBegin be ? ToInteger(begin).
+  ...
+includes: [testBigIntTypedArray.js, compareArray.js]
+features: [BigInt, TypedArray]
+---*/
+
+var obj = {
+  valueOf: function() {
+    return 2;
+  }
+};
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+  var sample = new TA(convertToBigInt([40, 41, 42, 43]));
+
+  assert(compareArray(sample.subarray(false), convertToBigInt([40, 41, 42, 43])), "false");
+  assert(compareArray(sample.subarray(true), convertToBigInt([41, 42, 43])), "true");
+
+  assert(compareArray(sample.subarray(NaN), convertToBigInt([40, 41, 42, 43])), "NaN");
+  assert(compareArray(sample.subarray(null), convertToBigInt([40, 41, 42, 43])), "null");
+  assert(compareArray(sample.subarray(undefined), convertToBigInt([40, 41, 42, 43])), "undefined");
+
+  assert(compareArray(sample.subarray(1.1), convertToBigInt([41, 42, 43])), "1.1");
+  assert(compareArray(sample.subarray(1.5), convertToBigInt([41, 42, 43])), "1.5");
+  assert(compareArray(sample.subarray(0.6), convertToBigInt([40, 41, 42, 43])), "0.6");
+
+  assert(compareArray(sample.subarray(-1.5), convertToBigInt([43])), "-1.5");
+  assert(compareArray(sample.subarray(-1.1), convertToBigInt([43])), "-1.1");
+  assert(compareArray(sample.subarray(-0.6), convertToBigInt([40, 41, 42, 43])), "-0.6");
+
+  assert(compareArray(sample.subarray("3"), convertToBigInt([43])), "string");
+  assert(
+    compareArray(
+      sample.subarray(obj),
+      convertToBigInt([42, 43])
+    ),
+    "object"
+  );
+});