1 files changed, 88 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/BigInt/asUintN/bits-toindex-errors.js b/js/src/tests/test262/built-ins/BigInt/asUintN/bits-toindex-errors.js
new file mode 100644
index 0000000000..59280fbdc2
--- /dev/null
+++ b/js/src/tests/test262/built-ins/BigInt/asUintN/bits-toindex-errors.js
@@ -0,0 +1,88 @@
+// Copyright (C) 2017 Josh Wolfe. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: BigInt.asUintN type coercion for bits parameter
+esid: sec-bigint.asuintn
+info: |
+  BigInt.asUintN ( bits, bigint )
+
+  1. Let bits be ? ToIndex(bits).
+features: [BigInt, computed-property-names, Symbol, Symbol.toPrimitive]
+---*/
+assert.sameValue(typeof BigInt, 'function');
+assert.sameValue(typeof BigInt.asUintN, 'function');
+
+assert.throws(RangeError, function() {
+  BigInt.asUintN(-1, 0n);
+}, "ToIndex: throw when integerIndex < 0");
+assert.throws(RangeError, function() {
+  BigInt.asUintN(-2.5, 0n);
+}, "ToIndex: throw when integerIndex < 0");
+assert.throws(RangeError, function() {
+  BigInt.asUintN("-2.5", 0n);
+}, "ToIndex: parse Number => throw when integerIndex < 0");
+assert.throws(RangeError, function() {
+  BigInt.asUintN(-Infinity, 0n);
+}, "ToIndex: throw when integerIndex < 0");
+assert.throws(RangeError, function() {
+  BigInt.asUintN(9007199254740992, 0n);
+}, "ToIndex: throw when integerIndex > 2**53-1");
+assert.throws(RangeError, function() {
+  BigInt.asUintN(Infinity, 0n);
+}, "ToIndex: throw when integerIndex > 2**53-1");
+assert.throws(TypeError, function() {
+  BigInt.asUintN(0n, 0n);
+}, "ToIndex: BigInt => TypeError");
+assert.throws(TypeError, function() {
+  BigInt.asUintN(Object(0n), 0n);
+}, "ToIndex: unbox object with internal slot => BigInt => TypeError");
+assert.throws(TypeError, function() {
+  BigInt.asUintN({
+    [Symbol.toPrimitive]: function() {
+      return 0n;
+    }
+  }, 0n);
+}, "ToIndex: @@toPrimitive => BigInt => TypeError");
+assert.throws(TypeError, function() {
+  BigInt.asUintN({
+    valueOf: function() {
+      return 0n;
+    }
+  }, 0n);
+}, "ToIndex: valueOf => BigInt => TypeError");
+assert.throws(TypeError, function() {
+  BigInt.asUintN({
+    toString: function() {
+      return 0n;
+    }
+  }, 0n);
+}, "ToIndex: toString => BigInt => TypeError");
+assert.throws(TypeError, function() {
+  BigInt.asUintN(Symbol("1"), 0n);
+}, "ToIndex: Symbol => TypeError");
+assert.throws(TypeError, function() {
+  BigInt.asUintN(Object(Symbol("1")), 0n);
+}, "ToIndex: unbox object with internal slot => Symbol => TypeError");
+assert.throws(TypeError, function() {
+  BigInt.asUintN({
+    [Symbol.toPrimitive]: function() {
+      return Symbol("1");
+    }
+  }, 0n);
+}, "ToIndex: @@toPrimitive => Symbol => TypeError");
+assert.throws(TypeError, function() {
+  BigInt.asUintN({
+    valueOf: function() {
+      return Symbol("1");
+    }
+  }, 0n);
+}, "ToIndex: valueOf => Symbol => TypeError");
+assert.throws(TypeError, function() {
+  BigInt.asUintN({
+    toString: function() {
+      return Symbol("1");
+    }
+  }, 0n);
+}, "ToIndex: toString => Symbol => TypeError");
+
+reportCompare(0, 0);