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Diffstat (limited to 'js/src/tests/test262/built-ins/DataView/prototype/setFloat32/no-value-arg.js')
-rw-r--r-- | js/src/tests/test262/built-ins/DataView/prototype/setFloat32/no-value-arg.js | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/DataView/prototype/setFloat32/no-value-arg.js b/js/src/tests/test262/built-ins/DataView/prototype/setFloat32/no-value-arg.js new file mode 100644 index 0000000000..d08fd8e5d8 --- /dev/null +++ b/js/src/tests/test262/built-ins/DataView/prototype/setFloat32/no-value-arg.js @@ -0,0 +1,48 @@ +// 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-dataview.prototype.setfloat32 +description: > + Set value as undefined (cast to NaN) when value argument is not present +info: | + 24.2.4.13 DataView.prototype.setFloat32 ( byteOffset, value [ , littleEndian ] ) + + 1. Let v be the this value. + 2. If littleEndian is not present, let littleEndian be false. + 3. Return ? SetViewValue(v, byteOffset, littleEndian, "Float32", value). + + 24.2.1.2 SetViewValue ( view, requestIndex, isLittleEndian, type, value ) + + ... + 15. Let bufferIndex be getIndex + viewOffset. + 16. Return SetValueInBuffer(buffer, bufferIndex, type, numberValue, isLittleEndian). + + 24.1.1.6 SetValueInBuffer ( arrayBuffer, byteIndex, type, value [ , isLittleEndian ] ) + + ... + 8. If type is "Float32", then + a. Set rawBytes to a List containing the 4 bytes that are the result of + converting value to IEEE 754-2008 binary32 format using “Round to nearest, + ties to even” rounding mode. If isLittleEndian is false, the bytes are + arranged in big endian order. Otherwise, the bytes are arranged in little + endian order. If value is NaN, rawValue may be set to any implementation + chosen IEEE 754-2008 binary32 format Not-a-Number encoding. An + implementation must always choose the same encoding for each implementation + distinguishable NaN value. + ... + 11. Store the individual bytes of rawBytes into block, in order, starting at + block[byteIndex]. + 12. Return NormalCompletion(undefined). +features: [DataView.prototype.getFloat32] +---*/ + +var buffer = new ArrayBuffer(8); +var sample = new DataView(buffer, 0); + +var result = sample.setFloat32(0); + +assert.sameValue(sample.getFloat32(0), NaN); +assert.sameValue(result, undefined); + +reportCompare(0, 0); |