1 files changed, 169 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/BigInt/asUintN/bits-toindex-toprimitive.js b/js/src/tests/test262/built-ins/BigInt/asUintN/bits-toindex-toprimitive.js
new file mode 100644
index 0000000000..a35902f453
--- /dev/null
+++ b/js/src/tests/test262/built-ins/BigInt/asUintN/bits-toindex-toprimitive.js
@@ -0,0 +1,169 @@
+// 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: pending
+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');
+
+function err() {
+  throw new Test262Error();
+}
+
+function MyError() {}
+
+assert.sameValue(BigInt.asUintN({
+  [Symbol.toPrimitive]: function() {
+    return 1;
+  },
+  valueOf: err,
+  toString: err
+}, 1n), 1n, "ToPrimitive: @@toPrimitive takes precedence");
+assert.sameValue(BigInt.asUintN({
+  valueOf: function() {
+    return 1;
+  },
+  toString: err
+}, 1n), 1n, "ToPrimitive: valueOf takes precedence over toString");
+assert.sameValue(BigInt.asUintN({
+  toString: function() {
+    return 1;
+  }
+}, 1n), 1n, "ToPrimitive: toString with no valueOf");
+assert.sameValue(BigInt.asUintN({
+  [Symbol.toPrimitive]: undefined,
+  valueOf: function() {
+    return 1;
+  }
+}, 1n), 1n, "ToPrimitive: skip @@toPrimitive when it's undefined");
+assert.sameValue(BigInt.asUintN({
+  [Symbol.toPrimitive]: null,
+  valueOf: function() {
+    return 1;
+  }
+}, 1n), 1n, "ToPrimitive: skip @@toPrimitive when it's null");
+assert.sameValue(BigInt.asUintN({
+  valueOf: null,
+  toString: function() {
+    return 1;
+  }
+}, 1n), 1n, "ToPrimitive: skip valueOf when it's not callable");
+assert.sameValue(BigInt.asUintN({
+  valueOf: 1,
+  toString: function() {
+    return 1;
+  }
+}, 1n), 1n, "ToPrimitive: skip valueOf when it's not callable");
+assert.sameValue(BigInt.asUintN({
+  valueOf: {},
+  toString: function() {
+    return 1;
+  }
+}, 1n), 1n, "ToPrimitive: skip valueOf when it's not callable");
+assert.sameValue(BigInt.asUintN({
+  valueOf: function() {
+    return {};
+  },
+  toString: function() {
+    return 1;
+  }
+}, 1n), 1n, "ToPrimitive: skip valueOf when it returns an object");
+assert.sameValue(BigInt.asUintN({
+  valueOf: function() {
+    return Object(12345);
+  },
+  toString: function() {
+    return 1;
+  }
+}, 1n), 1n, "ToPrimitive: skip valueOf when it returns an object");
+assert.throws(TypeError, function() {
+  BigInt.asUintN({
+    [Symbol.toPrimitive]: 1
+  }, 0n);
+}, "ToPrimitive: throw when @@toPrimitive is not callable");
+assert.throws(TypeError, function() {
+  BigInt.asUintN({
+    [Symbol.toPrimitive]: {}
+  }, 0n);
+}, "ToPrimitive: throw when @@toPrimitive is not callable");
+assert.throws(TypeError, function() {
+  BigInt.asUintN({
+    [Symbol.toPrimitive]: function() {
+      return Object(1);
+    }
+  }, 0n);
+}, "ToPrimitive: throw when @@toPrimitive returns an object");
+assert.throws(TypeError, function() {
+  BigInt.asUintN({
+    [Symbol.toPrimitive]: function() {
+      return {};
+    }
+  }, 0n);
+}, "ToPrimitive: throw when @@toPrimitive returns an object");
+assert.throws(MyError, function() {
+  BigInt.asUintN({
+    [Symbol.toPrimitive]: function() {
+      throw new MyError();
+    }
+  }, 0n);
+}, "ToPrimitive: propagate errors from @@toPrimitive");
+assert.throws(MyError, function() {
+  BigInt.asUintN({
+    valueOf: function() {
+      throw new MyError();
+    }
+  }, 0n);
+}, "ToPrimitive: propagate errors from valueOf");
+assert.throws(MyError, function() {
+  BigInt.asUintN({
+    toString: function() {
+      throw new MyError();
+    }
+  }, 0n);
+}, "ToPrimitive: propagate errors from toString");
+assert.throws(TypeError, function() {
+  BigInt.asUintN({
+    valueOf: null,
+    toString: null
+  }, 0n);
+}, "ToPrimitive: throw when skipping both valueOf and toString");
+assert.throws(TypeError, function() {
+  BigInt.asUintN({
+    valueOf: 1,
+    toString: 1
+  }, 0n);
+}, "ToPrimitive: throw when skipping both valueOf and toString");
+assert.throws(TypeError, function() {
+  BigInt.asUintN({
+    valueOf: {},
+    toString: {}
+  }, 0n);
+}, "ToPrimitive: throw when skipping both valueOf and toString");
+assert.throws(TypeError, function() {
+  BigInt.asUintN({
+    valueOf: function() {
+      return Object(1);
+    },
+    toString: function() {
+      return Object(1);
+    }
+  }, 0n);
+}, "ToPrimitive: throw when skipping both valueOf and toString");
+assert.throws(TypeError, function() {
+  BigInt.asUintN({
+    valueOf: function() {
+      return {};
+    },
+    toString: function() {
+      return {};
+    }
+  }, 0n);
+}, "ToPrimitive: throw when skipping both valueOf and toString");
+
+reportCompare(0, 0);