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const mocha = require('mocha');
module.exports = JSONExtra;
const constants = mocha.Runner.constants;
/*
This is a copy of
with more event hooks. mocha does not support extending reporters or using
multiple reporters so a custom reporter is needed and it must be local
to the project.
*/
function JSONExtra(runner, options) {
mocha.reporters.Base.call(this, runner, options);
mocha.reporters.JSON.call(this, runner, options);
const self = this;
runner.once(constants.EVENT_RUN_BEGIN, function () {
writeEvent(['start', {total: runner.total}]);
});
runner.on(constants.EVENT_TEST_PASS, function (test) {
writeEvent(['pass', clean(test)]);
});
runner.on(constants.EVENT_TEST_FAIL, function (test, err) {
test = clean(test);
test.err = err.message;
test.stack = err.stack || null;
writeEvent(['fail', test]);
});
runner.once(constants.EVENT_RUN_END, function () {
writeEvent(['end', self.stats]);
});
runner.on(constants.EVENT_TEST_BEGIN, function (test) {
writeEvent(['test-start', clean(test)]);
});
runner.on(constants.EVENT_TEST_PENDING, function (test) {
writeEvent(['pending', clean(test)]);
});
}
function writeEvent(event) {
process.stdout.write(JSON.stringify(event) + '\n');
}
/**
* Returns an object literal representation of `test`
* free of cyclic properties, etc.
*
* @private
* @param {Object} test - Instance used as data source.
* @return {Object} object containing pared-down test instance data
*/
function clean(test) {
return {
title: test.title,
fullTitle: test.fullTitle(),
file: test.file,
duration: test.duration,
currentRetry: test.currentRetry(),
};
}