summaryrefslogtreecommitdiffstats
path: root/js/src/tests/test262/built-ins/TypedArray/prototype/copyWithin/BigInt/negative-target.js
diff options
context:
space:
mode:
Diffstat (limited to 'js/src/tests/test262/built-ins/TypedArray/prototype/copyWithin/BigInt/negative-target.js')
-rw-r--r--js/src/tests/test262/built-ins/TypedArray/prototype/copyWithin/BigInt/negative-target.js55
1 files changed, 55 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/copyWithin/BigInt/negative-target.js b/js/src/tests/test262/built-ins/TypedArray/prototype/copyWithin/BigInt/negative-target.js
new file mode 100644
index 0000000000..286910f628
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/copyWithin/BigInt/negative-target.js
@@ -0,0 +1,55 @@
+// 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.copywithin
+description: >
+ Set values with negative target argument.
+info: |
+ 22.2.3.5 %TypedArray%.prototype.copyWithin (target, start [ , end ] )
+
+ %TypedArray%.prototype.copyWithin is a distinct function that implements the
+ same algorithm as Array.prototype.copyWithin as defined in 22.1.3.3 except
+ that the this object's [[ArrayLength]] internal slot is accessed in place of
+ performing a [[Get]] of "length" and the actual copying of values in step 12
+ must be performed in a manner that preserves the bit-level encoding of the
+ source data.
+
+ ...
+
+ 22.1.3.3 Array.prototype.copyWithin (target, start [ , end ] )
+
+ ...
+ 4. If relativeTarget < 0, let to be max((len + relativeTarget), 0); else let
+ to be min(relativeTarget, len).
+ ...
+includes: [compareArray.js, testBigIntTypedArray.js]
+features: [BigInt, TypedArray]
+---*/
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+ assert(
+ compareArray(
+ new TA([0n, 1n, 2n, 3n]).copyWithin(-1, 0),
+ [0n, 1n, 2n, 0n]
+ ),
+ '[0, 1, 2, 3].copyWithin(-1, 0) -> [0, 1, 2, 0]'
+ );
+
+ assert(
+ compareArray(
+ new TA([0n, 1n, 2n, 3n, 4n]).copyWithin(-2, 2),
+ [0n, 1n, 2n, 2n, 3n]
+ ),
+ '[0, 1, 2, 3, 4].copyWithin(-2, 2) -> [0, 1, 2, 2, 3]'
+ );
+
+ assert(
+ compareArray(
+ new TA([0n, 1n, 2n, 3n]).copyWithin(-1, 2),
+ [0n, 1n, 2n, 2n]
+ ),
+ '[0, 1, 2, 3].copyWithin(-1, 2) -> [0, 1, 2, 2]'
+ );
+});
+
+reportCompare(0, 0);