@arghajit/playwright-pulse-report/scripts/merge-pulse-report.js

A Playwright reporter and dashboard for visualizing test results.

#!/usr/bin/env node

const fs = require("fs");
const path = require("path");

const args = process.argv.slice(2);
let customOutputDir = null;
for (let i = 0; i < args.length; i++) {
  if (args[i] === '--outputDir' || args[i] === '-o') {
    customOutputDir = args[i + 1];
    break;
  }
}

const OUTPUT_FILE = "playwright-pulse-report.json";

async function getReportDir() {
  if (customOutputDir) {
    return path.resolve(process.cwd(), customOutputDir);
  }

  try {
    const { getOutputDir } = await import("./config-reader.mjs");
    return await getOutputDir();
  } catch (error) {
    return path.resolve(process.cwd(), "pulse-report");
  }
}

function getReportFiles(dir) {
  return fs
    .readdirSync(dir)
    .filter(
      (file) =>
        file.startsWith("playwright-pulse-report-") && file.endsWith(".json")
    );
}

function mergeReports(files, reportDir) {
  let combinedRun = {
    totalTests: 0,
    passed: 0,
    failed: 0,
    skipped: 0,
    duration: 0,
  };

  let combinedResults = [];

  let latestTimestamp = "";
  let latestGeneratedAt = "";

  for (const file of files) {
    const filePath = path.join(reportDir, file);
    const json = JSON.parse(fs.readFileSync(filePath, "utf-8"));

    const run = json.run || {};
    combinedRun.totalTests += run.totalTests || 0;
    combinedRun.passed += run.passed || 0;
    combinedRun.failed += run.failed || 0;
    combinedRun.skipped += run.skipped || 0;
    combinedRun.duration += run.duration || 0;
    combinedRun.environment = run.environment;

    if (json.results) {
      combinedResults.push(...json.results);
    }

    if (run.timestamp > latestTimestamp) latestTimestamp = run.timestamp;
    if (json.metadata?.generatedAt > latestGeneratedAt)
      latestGeneratedAt = json.metadata.generatedAt;
  }

  const finalJson = {
    run: {
      id: `merged-${Date.now()}`,
      timestamp: latestTimestamp,
      ...combinedRun,
    },
    results: combinedResults,
    metadata: {
      generatedAt: latestGeneratedAt,
    },
  };

  return finalJson;
}

// Main execution
(async () => {
  const REPORT_DIR = await getReportDir();

  console.log(`Report directory set to: ${REPORT_DIR}`);
  if (customOutputDir) {
    console.log(`  (from CLI argument)`);
  } else {
    console.log(`  (auto-detected from playwright.config or using default)`);
  }

  const reportFiles = getReportFiles(REPORT_DIR);

  if (reportFiles.length === 0) {
    console.log("No matching JSON report files found.");
    process.exit(1);
  }

  const merged = mergeReports(reportFiles, REPORT_DIR);

  fs.writeFileSync(
    path.join(REPORT_DIR, OUTPUT_FILE),
    JSON.stringify(merged, null, 2)
  );
  console.log(`✅ Merged report saved as ${OUTPUT_FILE}`);
})();