1 files changed, 47 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/expressions/subtraction/bigint-wrapped-values.js b/js/src/tests/test262/language/expressions/subtraction/bigint-wrapped-values.js
new file mode 100644
index 0000000000..2807304e36
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/subtraction/bigint-wrapped-values.js
@@ -0,0 +1,47 @@
+// Copyright (C) 2017 Josh Wolfe. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: subtraction operator ToNumeric with BigInt operands
+esid: sec-subtraction-operator-minus-runtime-semantics-evaluation
+features: [BigInt, Symbol.toPrimitive, computed-property-names]
+---*/
+assert.sameValue(Object(2n) - 1n, 1n, 'The result of (Object(2n) - 1n) is 1n');
+assert.sameValue(3n - Object(2n), 1n, 'The result of (3n - Object(2n)) is 1n');
+
+assert.sameValue({
+  [Symbol.toPrimitive]: function() {
+    return 2n;
+  }
+} - 1n, 1n, 'The result of (({[Symbol.toPrimitive]: function() {return 2n;}}) - 1n) is 1n');
+
+assert.sameValue(3n - {
+  [Symbol.toPrimitive]: function() {
+    return 2n;
+  }
+}, 1n, 'The result of (3n - {[Symbol.toPrimitive]: function() {return 2n;}}) is 1n');
+
+assert.sameValue({
+  valueOf: function() {
+    return 2n;
+  }
+} - 1n, 1n, 'The result of (({valueOf: function() {return 2n;}}) - 1n) is 1n');
+
+assert.sameValue(3n - {
+  valueOf: function() {
+    return 2n;
+  }
+}, 1n, 'The result of (3n - {valueOf: function() {return 2n;}}) is 1n');
+
+assert.sameValue({
+  toString: function() {
+    return 2n;
+  }
+} - 1n, 1n, 'The result of (({toString: function() {return 2n;}}) - 1n) is 1n');
+
+assert.sameValue(3n - {
+  toString: function() {
+    return 2n;
+  }
+}, 1n, 'The result of (3n - {toString: function() {return 2n;}}) is 1n');
+
+reportCompare(0, 0);