static analyzeHrefCoverage()

in x-test.js [1170:1214]

• 45 lines of code
• 15 McCabe index (conditional complexity)

  static analyzeHrefCoverage(coverageValue, href, goal) {
    const set = new Set();
    let text = '';
    for (const item of coverageValue ?? []) {
      if (item.url === href) {
        text = item.text;
        for (const range of item.ranges) {
          for (let i = range.start; i < range.end; i++) {
            set.add(i);
          }
        }
      }
    }
    const ranges = [];
    const state = { used: set.has(0), start: 0 };
    for (let index = 0; index < text.length; index++) {
      const used = set.has(index);
      if (used !== state.used) {
        ranges.push({ used: state.used, start: state.start, end: index });
        Object.assign(state, { used, start: index });
      }
    }
    ranges.push({ used: state.used, start: state.start, end: text.length });
    let output = '';
    let lineNumber = 1;
    for (const range of ranges) {
      let lines = text
        .slice(range.start, range.end)
        .split('\n')
        .map((line, iii) => lineNumber === 1 || iii > 0 ? `${String(lineNumber++ + (range.used ? '' : ' !')).padEnd(8, ' ')}|  ${line}` : line);
      if (range.used) {
        if (lines.length > 3) {
          lines = [...lines.slice(0, 1), '\u2026', ...lines.slice(-1)];
        }
      } else {
        if (lines.length > 5) {
          lines = [...lines.slice(0, 2), '\u2026', ...lines.slice(-2)];
        }
      }
      output += range.used ? `${lines.join('\n')}` : `${lines.join('\n')}`;
    }
    const percent = set.size / text.length * 100;
    const ok = percent >= goal;
    return { ok, percent, output };
  }