Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 62 insertions, 0 deletions

diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/find/return-undefined-if-predicate-returns-false-value.js b/js/src/tests/test262/built-ins/TypedArray/prototype/find/return-undefined-if-predicate-returns-false-value.js
new file mode 100644
index 0000000000..bbfa0928e9
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/find/return-undefined-if-predicate-returns-false-value.js
@@ -0,0 +1,62 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-%typedarray%.prototype.find
+description: >
+  Return undefined if predicate always returns a boolean false value.
+info: |
+  22.2.3.10 %TypedArray%.prototype.find (predicate [ , thisArg ] )
+
+  %TypedArray%.prototype.find is a distinct function that implements the same
+  algorithm as Array.prototype.find as defined in 22.1.3.8 except that the this
+  object's [[ArrayLength]] internal slot is accessed in place of performing a
+  [[Get]] of "length". The implementation of the algorithm may be optimized with
+  the knowledge that the this value is an object that has a fixed length and
+  whose integer indexed properties are not sparse.
+
+  ...
+
+  22.1.3.8 Array.prototype.find ( predicate[ , thisArg ] )
+
+  ...
+  6. Repeat, while k < len
+    ...
+    c. Let testResult be ToBoolean(? Call(predicate, T, « kValue, k, O »)).
+    ...
+  7. Return undefined.
+includes: [testTypedArray.js]
+features: [Symbol, TypedArray]
+---*/
+
+testWithTypedArrayConstructors(function(TA) {
+  var sample = new TA(3);
+  var called = 0;
+
+  var result = sample.find(function() {
+    called++;
+    return false;
+  });
+
+  assert.sameValue(called, 3, "predicate was called three times");
+  assert.sameValue(result, undefined);
+
+  result = sample.find(function() { return ""; });
+  assert.sameValue(result, undefined, "ToBoolean(empty string)");
+
+  result = sample.find(function() { return undefined; });
+  assert.sameValue(result, undefined, "ToBoolean(undefined)");
+
+  result = sample.find(function() { return null; });
+  assert.sameValue(result, undefined, "ToBoolean(null)");
+
+  result = sample.find(function() { return 0; });
+  assert.sameValue(result, undefined, "ToBoolean(0)");
+
+  result = sample.find(function() { return -0; });
+  assert.sameValue(result, undefined, "ToBoolean(-0)");
+
+  result = sample.find(function() { return NaN; });
+  assert.sameValue(result, undefined, "ToBoolean(NaN)");
+});
+
+reportCompare(0, 0);