public String diff()

in testsuite/jflex-testsuite-maven-plugin/src/main/java/jflex/maven/plugin/testsuite/DiffStream.java [48:87]

• 38 lines of code
• 12 McCabe index (conditional complexity)

  public String diff(List<Integer> diffLines, Reader input, Reader expected) {
    if (diffLines == null) diffLines = new ArrayList<>();
    linesProcessed = 1;
    BufferedReader myInput = new BufferedReader(input);
    String readFromInput;
    BufferedReader myExpected = new BufferedReader(expected);
    String readFromExpected;
    try {
      do {
        readFromInput = myInput.readLine();
        readFromExpected = myExpected.readLine();
        // EOF reached in one Reader ?? -> Error
        if ((readFromInput == null) && (readFromExpected != null)) {
          return "EOF reached in Expected(Line:"
              + linesProcessed
              + ")... got more Lines to compare.\n";
        }
        if ((readFromInput != null) && (readFromExpected == null)) {
          return "EOF reached in Input(Line:" + linesProcessed + ")... more Lines expected.\n";
        }
        if (readFromInput != null && !match(readFromInput, readFromExpected)) {
          if (!diffLines.contains(Integer.valueOf(linesProcessed)))
            return "Difference in line "
                + linesProcessed
                + "\n"
                + "expected :["
                + readFromExpected
                + "]\n"
                + "but got  :["
                + readFromInput
                + "]";
        }
        linesProcessed++;
      } while ((readFromInput != null) && (readFromExpected != null));
    } catch (IOException e) {
      return "Error processing Files...compare aborted.\n";
    }

    return null;
  }