Method summary

lib/internal/test_runner/coverage.js:206–356

()

  }

  summary() {
    internalBinding('profiler').takeCoverage();
    const coverage = this.getCoverageFromDirectory();
    const coverageSummary = {
      __proto__: null,
      workingDirectory: this.options.cwd,
      files: [],
      totals: {
        __proto__: null,
        totalLineCount: 0,
        totalBranchCount: 0,
        totalFunctionCount: 0,
        coveredLineCount: 0,
        coveredBranchCount: 0,
        coveredFunctionCount: 0,
        coveredLinePercent: 0,
        coveredBranchPercent: 0,
        coveredFunctionPercent: 0,
      },
      thresholds: {
        __proto__: null,
        line: this.options.lineCoverage,
        branch: this.options.branchCoverage,
        function: this.options.functionCoverage,
      },
    };

    if (!coverage) {
      return coverageSummary;
    }

    for (let i = 0; i < coverage.length; ++i) {
      const { functions, url } = coverage[i];

      let totalBranches = 0;
      let totalFunctions = 0;
      let branchesCovered = 0;
      let functionsCovered = 0;
      const functionReports = [];
      const branchReports = [];

      const lines = this.getLines(url);
      if (!lines) {
        continue;
      }


      for (let j = 0; j < functions.length; ++j) {
        const { isBlockCoverage, ranges } = functions[j];

        let maxCountPerFunction = 0;
        for (let k = 0; k < ranges.length; ++k) {
          const range = ranges[k];
          maxCountPerFunction = MathMax(maxCountPerFunction, range.count);

          // Add some useful data to the range. The test runner has read these ranges
          // from a file, so we own the data structures and can do what we want.
          ObjectAssign(range, mapRangeToLines(range, lines));