1 files changed, 48 insertions, 0 deletions

diff --git a/js/src/tests/test262/built-ins/String/prototype/split/this-value-tostring-error.js b/js/src/tests/test262/built-ins/String/prototype/split/this-value-tostring-error.js
new file mode 100644
index 0000000000..a03b9ebaf7
--- /dev/null
+++ b/js/src/tests/test262/built-ins/String/prototype/split/this-value-tostring-error.js
@@ -0,0 +1,48 @@
+// Copyright (C) 2020 Richard Gibson. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-string.prototype.split
+description: Abrupt completion from ToString on the "this" value
+info: |
+  1. Let _O_ be ? RequireObjectCoercible(*this* value).
+  1. If _separator_ is neither *undefined* nor *null*, then
+    1. Let _splitter_ be ? GetMethod(_separator_, @@split).
+    1. If _splitter_ is not *undefined*, then
+      1. Return ? Call(_splitter_, _separator_, « _O_, _limit_ »).
+  1. Let _S_ be ? ToString(_O_).
+features: [Symbol, Symbol.split, Symbol.toPrimitive]
+---*/
+
+function ExpectedError(message) {
+  this.message = message || "";
+}
+ExpectedError.prototype.toString = function () {
+  return "ExpectedError: " + this.message;
+};
+
+var split = String.prototype.split;
+
+var nonStringableReceiver = {};
+nonStringableReceiver.toString = function() { throw new ExpectedError("receiver.toString"); };
+
+var splitter = {};
+splitter[Symbol.split] = function() {};
+
+try {
+  split.call(nonStringableReceiver, splitter, Symbol());
+} catch (e) {
+  assert.sameValue(e, undefined,
+      'ToString should not be called on the receiver when the separator has a @@split method.');
+}
+
+var nonStringableSeparator = {};
+nonStringableSeparator[Symbol.toPrimitive] =
+  function() { throw new Test262Error("separator[Symbol.toPrimitive]"); };
+nonStringableSeparator.toString = function() { throw new Test262Error("separator.toString"); };
+nonStringableSeparator.valueOf = function() { throw new Test262Error("separator.valueOf"); };
+
+assert.throws(ExpectedError, function() {
+  split.call(nonStringableReceiver, nonStringableSeparator, Symbol());
+}, 'ToString should be called on the receiver before processing the separator or limit.');
+
+reportCompare(0, 0);