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-rw-r--r--js/src/tests/test262/built-ins/Array/prototype/find/predicate-not-called-on-empty-array.js31
1 files changed, 31 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/find/predicate-not-called-on-empty-array.js b/js/src/tests/test262/built-ins/Array/prototype/find/predicate-not-called-on-empty-array.js
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+++ b/js/src/tests/test262/built-ins/Array/prototype/find/predicate-not-called-on-empty-array.js
@@ -0,0 +1,31 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-array.prototype.find
+description: >
+ Predicate is only called if this.length is > 0.
+info: |
+ 22.1.3.8 Array.prototype.find ( predicate[ , thisArg ] )
+
+ ...
+ 7. Let k be 0.
+ 8. Repeat, while k < len
+ ...
+ d. Let testResult be ToBoolean(Call(predicate, T, «kValue, k, O»)).
+ ...
+ 9. Return undefined.
+---*/
+
+var called = false;
+
+var predicate = function() {
+ called = true;
+ return true;
+};
+
+var result = [].find(predicate);
+
+assert.sameValue(called, false, '[].find(predicate) does not call predicate');
+assert.sameValue(result, undefined, '[].find(predicate) returned undefined');
+
+reportCompare(0, 0);