pkg/crypto: move tests to unittest package

pkg/crypto/lib/src/crypto_utils.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of crypto;
 
 abstract class _CryptoUtils {
   static String bytesToHex(List<int> bytes) {
     var result = new StringBuffer();
     for (var part in bytes) {
@@ skipping 60 matching lines @@
     while (i < chunkLength) {
       int x = ((bytes[i++] << 16) & 0xFFFFFF) |
               ((bytes[i++] << 8) & 0xFFFFFF) |
                 bytes[i++];
       out[j++] = lookup.codeUnitAt(x >> 18);
       out[j++] = lookup.codeUnitAt((x >> 12) & 0x3F);
       out[j++] = lookup.codeUnitAt((x >> 6)  & 0x3F);
       out[j++] = lookup.codeUnitAt(x & 0x3f);
       // Add optional line separator for each 76 char output.
       if (addLineSeparator && ++c == 19 && j < outputLen - 2) {
-          out[j++] = CR;
-          out[j++] = LF;
-          c = 0;
+        out[j++] = CR;
+        out[j++] = LF;
+        c = 0;
       }
     }
 
     // If input length if not a multiple of 3, encode remaining bytes and
     // add padding.
     if (remainderLength == 1) {
       int x = bytes[i];
       out[j++] = lookup.codeUnitAt(x >> 2);
       out[j++] = lookup.codeUnitAt((x << 4) & 0x3F);
       out[j++] = PAD;
@@ skipping 16 matching lines @@
       return new List<int>(0);
     }
 
     // Count '\r', '\n' and illegal characters, For illegal characters,
     // throw an exception.
     int extrasLen = 0;
     for (int i = 0; i < len; i++) {
       int c = _decodeTable[input.codeUnitAt(i)];
       if (c < 0) {
         extrasLen++;
-        if(c == -2) {
+        if (c == -2) {
           throw new FormatException('Invalid character: ${input[i]}');
         }
       }
     }
 
     if ((len - extrasLen) % 4 != 0) {
       throw new FormatException('''Size of Base 64 characters in Input
           must be a multiple of 4. Input: $input''');
     }
 
     // Count pad characters.
     int padLength = 0;
     for (int i = len - 1; i >= 0; i--) {
       int currentCodeUnit = input.codeUnitAt(i);
       if (_decodeTable[currentCodeUnit] > 0) break;
       if (currentCodeUnit == PAD) padLength++;
     }
     int outputLen = (((len - extrasLen) * 6) >> 3) - padLength;
     List<int> out = new List<int>(outputLen);
 
-    for (int i = 0, o = 0; o < outputLen;) {
+    for (int i = 0, o = 0; o < outputLen; ) {
       // Accumulate 4 valid 6 bit Base 64 characters into an int.
       int x = 0;
-      for (int j = 4; j > 0;) {
+      for (int j = 4; j > 0; ) {
         int c = _decodeTable[input.codeUnitAt(i++)];
         if (c >= 0) {
           x = ((x << 6) & 0xFFFFFF) | c;
           j--;
         }
       }
       out[o++] = x >> 16;
       if (o < outputLen) {
         out[o++] = (x >> 8) & 0xFF;
         if (o < outputLen) out[o++] = x & 0xFF;
       }
     }
     return out;
   }
 
 }