1 files changed, 42 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/String/prototype/indexOf/searchstring-tostring-errors.js b/js/src/tests/test262/built-ins/String/prototype/indexOf/searchstring-tostring-errors.js
new file mode 100644
index 0000000000..9f2802c291
--- /dev/null
+++ b/js/src/tests/test262/built-ins/String/prototype/indexOf/searchstring-tostring-errors.js
@@ -0,0 +1,42 @@
+// Copyright (C) 2017 Josh Wolfe. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: String.prototype.indexOf type coercion for searchString parameter
+esid: sec-string.prototype.indexof
+info: |
+  String.prototype.indexOf ( searchString [ , position ] )
+
+  3. Let searchStr be ? ToString(searchString).
+features: [Symbol, Symbol.toPrimitive, computed-property-names]
+---*/
+
+assert.throws(TypeError, function() {
+  "".indexOf(Symbol("1"));
+}, "ToString: Symbol => TypeError");
+assert.throws(TypeError, function() {
+  "".indexOf(Object(Symbol("1")));
+}, "ToString: unbox object with internal slot => Symbol => TypeError");
+assert.throws(TypeError, function() {
+  "".indexOf({
+    [Symbol.toPrimitive]: function() {
+      return Symbol("1");
+    }
+  });
+}, "ToString: @@toPrimitive => Symbol => TypeError");
+assert.throws(TypeError, function() {
+  "".indexOf({
+    valueOf: function() {
+      return Symbol("1");
+    },
+    toString: null
+  });
+}, "ToString: valueOf => Symbol => TypeError");
+assert.throws(TypeError, function() {
+  "".indexOf({
+    toString: function() {
+      return Symbol("1");
+    }
+  });
+}, "ToString: toString => Symbol => TypeError");
+
+reportCompare(0, 0);