summary static method

String summary({ required int total, required int successes, required int failures, required int neutrals, })

Implementation

static String summary({
  required int total,
  required int successes,
  required int failures,
  required int neutrals,
}) {
  final int totalCharCount = total.toString().length;
  final int successCharCount = successes.toString().length;
  final int failureCharCount = failures.toString().length;
  final int neutralCharCount = neutrals.toString().length;
  final int maxCharCount = [
    totalCharCount,
    successCharCount,
    failureCharCount,
    neutralCharCount,
  ].fold<int>(1, (previousValue, element) => max(previousValue, element));

  const int baseTopDashSpacer = 18;
  const int baseBlankSpacer = 28;
  const int baseTotalSpacer = 14;
  const int baseSuccessSpacer = 15;
  const int baseFailureSpacer = 15;
  const int baseNeutralSpacer = 1;
  const int boxLength = 29;

  final int totalExtraSpace = maxCharCount - totalCharCount + baseTotalSpacer;
  final int successExtraSpace =
      maxCharCount - successCharCount + baseSuccessSpacer;
  final int failureExtraSpace =
      maxCharCount - failureCharCount + baseFailureSpacer;
  final int neutralExtraSpace =
      maxCharCount - neutralCharCount + baseNeutralSpacer;

  // There are only two fields that might realistically overflow the box
  // - total and neutrals. Since total will always be >= passed and failed
  // count, we can just look at total and push out the space from there.
  int allExtraSpace = 0;
  if (neutralExtraSpace == maxCharCount && maxCharCount > baseNeutralSpacer) {
    allExtraSpace = maxCharCount - baseNeutralSpacer;
  } else if (totalExtraSpace == maxCharCount &&
      maxCharCount > baseTotalSpacer) {
    allExtraSpace = maxCharCount - baseTotalSpacer;
  }

  /*
   * Create a box that looks like this:
   * - Summary: -------------------
   * |                            |
   * |  $total tests ran.              |
   * |  - $successes passed.               |
   * |  - $failures failed.               |
   * |  - $neutrals skipped/inconclusive. |
   * -------------------------------
   */

  String message = '\n';
  // - Summary: -------------------
  message += ' - Summary: ';
  for (int i = 1; i < baseTopDashSpacer + allExtraSpace; i++) {
    message += '-';
  }
  message += '\n';

  // |                            | (blank spacer line)
  message += '|';
  for (int i = 1; i < baseBlankSpacer + allExtraSpace; i++) {
    message += ' ';
  }
  message += '|\n';

  // |  $total tests ran.              |
  message += '|  $total tests ran.';
  for (int i = 1; i < totalExtraSpace + allExtraSpace; i++) {
    message += ' ';
  }
  message += '|\n';

  // |  - $successes passed.               |
  message += '|  - $successes passed.';
  for (int i = 1; i < successExtraSpace + allExtraSpace; i++) {
    message += ' ';
  }
  message += '|\n';

  // |  - $failures failed.               |
  message += '|  - $failures failed.';
  for (int i = 1; i < failureExtraSpace + allExtraSpace; i++) {
    message += ' ';
  }
  message += '|\n';

  // |  - $neutrals skipped/inconclusive. |
  message += '|  - $neutrals skipped/inconclusive.';
  for (int i = 1; i < neutralExtraSpace + allExtraSpace; i++) {
    message += ' ';
  }
  message += '|\n';

  // -------------------------------
  message += ' ';
  for (int i = 1; i < boxLength + allExtraSpace; i++) {
    message += '-';
  }
  message += '\n';

  return message;
}