@callstack/reassure-measure/lib/commonjs/output.js

Performance measurement library for React and React Native

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.clearTestStats = clearTestStats;
exports.setHasShownFlagsOutput = setHasShownFlagsOutput;
exports.showFlagsOutputIfNeeded = showFlagsOutputIfNeeded;
exports.writeTestStats = writeTestStats;
var fs = _interopRequireWildcard(require("fs/promises"));
var logger = _interopRequireWildcard(require("@callstack/reassure-logger"));
var _config = require("./config");
function _getRequireWildcardCache(e) { if ("function" != typeof WeakMap) return null; var r = new WeakMap(), t = new WeakMap(); return (_getRequireWildcardCache = function (e) { return e ? t : r; })(e); }
function _interopRequireWildcard(e, r) { if (!r && e && e.__esModule) return e; if (null === e || "object" != typeof e && "function" != typeof e) return { default: e }; var t = _getRequireWildcardCache(r); if (t && t.has(e)) return t.get(e); var n = { __proto__: null }, a = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var u in e) if ("default" !== u && {}.hasOwnProperty.call(e, u)) { var i = a ? Object.getOwnPropertyDescriptor(e, u) : null; i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u]; } return n.default = e, t && t.set(e, n), n; }
async function writeTestStats(stats, type, outputFilePath = _config.config.outputFile) {
  const name = expect.getState().currentTestName;
  const line = JSON.stringify({
    name,
    type,
    ...stats
  }) + '\n';
  try {
    await fs.appendFile(outputFilePath, line);
  } catch (error) {
    logger.error(`Error writing ${outputFilePath}`, error);
    throw error;
  }
}
async function clearTestStats(outputFilePath = _config.config.outputFile) {
  try {
    await fs.unlink(outputFilePath);
  } catch {
    logger.warn(`Cannot remove ${outputFilePath}. File doesn't exist or cannot be removed`);
  }
}
let hasShownFlagsOutput = false;
function showFlagsOutputIfNeeded() {
  if (hasShownFlagsOutput) {
    return;
  }
  if (!global.gc) {
    logger.error('❌ Measure code is running under incorrect Node.js configuration.\n' + 'Performance test code should be run in Jest with certain Node.js flags to increase measurements stability.\n' + 'Make sure you use the Reassure CLI and run it using "reassure" command.');
  } else {
    logger.verbose('Measure code is running with correct Node.js configuration.');
  }
  hasShownFlagsOutput = true;
}
function setHasShownFlagsOutput(value) {
  hasShownFlagsOutput = value;
}
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