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Issue 886 updating failing actionscript core test

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git-svn-id: https://zxing.googlecode.com/svn/trunk@1844 59b500cc-1b3d-0410-9834-0bbf25fbcc57
This commit is contained in:
srowen 2011-06-30 07:39:14 +00:00
parent 0ab511d129
commit 4e9c7e16c0
1 changed files with 26 additions and 7 deletions
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33
actionscript/core/test/com/google/zxing/EncodeDecodeEAN8Test.as
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@ -69,17 +69,20 @@ package com.google.zxing {
} }
[Test(description="Encode a number, decode it, and compare.")] [Test(description="Encode a number, decode it, and compare.")]
public function encodedEAN8shouldBeDecodedSuccessfully():void { public function testEncodedEAN8shouldBeDecodedSuccessfully():void {
var testCode:Number = 48512343; var testCode:Number = 48512343;
var decodedNumber:Number = encodeAndDecode(testCode); var decodedNumber:Number = encodeAndDecode(testCode);
assertEquals(testCode, decodedNumber); assertEquals(testCode, decodedNumber);
} }
[Test(description="Bug: Endoding and decoding 1 fails")] [Test(description="Encodes EAN8 from 0 to 9999999.")]
public function shouldEncodeAndDecodeAnyValidEAN8number():void { public function testEncodeAndDecodeAnyValidEAN8Number():void {
var testCode:Number = 12345678; for (var testCode:Number = 9999999; testCode >= 0; testCode -= 1111111) {
var decodedNumber:Number = encodeAndDecode(testCode); var checkSum:Number = calculateEANChecksumDigit(testCode);
assertEquals(testCode, decodedNumber); var testCodeWithCheckSum:Number = testCode * 10 + checkSum;
var decodedNumber:Number = encodeAndDecode(testCodeWithCheckSum);
assertEquals(testCodeWithCheckSum, decodedNumber);
}
} }
private function encodeAndDecode(testCode:Number):Number { private function encodeAndDecode(testCode:Number):Number {
@ -125,7 +128,6 @@ package com.google.zxing {
private function generateImage(resultBits:Array, imageWidth:Number, private function generateImage(resultBits:Array, imageWidth:Number,
imageHeight:Number):Bitmap { imageHeight:Number):Bitmap {
// generate an image
var bitmapData:BitmapData = new BitmapData(imageWidth, imageHeight, false, var bitmapData:BitmapData = new BitmapData(imageWidth, imageHeight, false,
0xFFFFFF); 0xFFFFFF);
var bitmap:Bitmap = new Bitmap(bitmapData); var bitmap:Bitmap = new Bitmap(bitmapData);
@ -176,5 +178,22 @@ package com.google.zxing {
} }
return contents; return contents;
} }
public function calculateEANChecksumDigit(number:Number):Number {
var checksum:Number = 0;
var weightedSumOfDigits:Number = 0;
var weight:Number = 3;
while (number > 0) {
var lastDigit:int = number % 10;
weightedSumOfDigits = weightedSumOfDigits + lastDigit * weight;
number = (number - lastDigit) / 10;
weight = weight == 3 ? 1 : 3;
}
var additionToTen:Number = weightedSumOfDigits % 10;
if (additionToTen > 0) {
checksum = 10 - additionToTen;
}
return checksum;
}
} }
} }