Hacky script to process Detox failure output

prettify_detox.js

if (process.argv.length !== 3) {
  console.error("Expects exactly one argument");
  return;
}
const path = process.argv[2];
console.log(path + "\n");

const lineReader = require('readline').createInterface({
  input: require('fs').createReadStream(path)
});

lineReader.on('line', function (line) {
  const prefix = line.substr(0, line.indexOf("<")); // indentation
  if (!prefix) return;

  const element = line.substr(line.indexOf("<") + 1, line.indexOf(":") - line.indexOf("<") - 1); // e.g., RCTView
  const label = getAttributeValue(line, "AX.label"); // text, if available
  const id = getAttributeValue(line, "AX.id"); // testID prop, if provided

  console.log(`${prefix} <${element}> \t\t ${label ? label : ""} ${id ? `[ID=${id}]` : ""}`);
});

const getAttributeValue = (line, attr) => {
  // attr='value' ---> returns value
  const index = line.indexOf(attr + "='");
  if (index === -1) return "";
  const l = line.substr(index + attr.length + 2);
  return l.substr(0, l.indexOf("'"));
};