@academyjs/rover
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Rover allows you to learn programming interactively.
80 lines • 2.2 kB
JavaScript
;
/**
* @module JSONStream
*/
/**
* Module dependencies.
*/
var Base = require("./base");
var constants = require("../runner").default.constants;
var EVENT_TEST_PASS = constants.EVENT_TEST_PASS;
var EVENT_TEST_FAIL = constants.EVENT_TEST_FAIL;
var EVENT_RUN_BEGIN = constants.EVENT_RUN_BEGIN;
var EVENT_RUN_END = constants.EVENT_RUN_END;
/**
* Expose `JSONStream`.
*/
exports = module.exports = JSONStream;
/**
* Constructs a new `JSONStream` reporter instance.
*
* @public
* @class
* @memberof Mocha.reporters
* @extends Mocha.reporters.Base
* @param {Runner} runner - Instance triggers reporter actions.
* @param {Object} [options] - runner options
*/
function JSONStream(runner, options) {
Base.call(this, runner, options);
var self = this;
var total = runner.total;
runner.once(EVENT_RUN_BEGIN, function () {
writeEvent(["start", { total: total }]);
});
runner.on(EVENT_TEST_PASS, function (test) {
writeEvent(["pass", clean(test)]);
});
runner.on(EVENT_TEST_FAIL, function (test, err) {
test = clean(test);
test.err = err.message;
test.stack = err.stack || null;
writeEvent(["fail", test]);
});
runner.once(EVENT_RUN_END, function () {
writeEvent(["end", self.stats]);
});
}
/**
* Mocha event to be written to the output stream.
* @typedef {Array} JSONStream~MochaEvent
*/
/**
* Writes Mocha event to reporter output stream.
*
* @private
* @param {JSONStream~MochaEvent} event - Mocha event to be output.
*/
function writeEvent(event) {
process.stdout.write(JSON.stringify(event) + "\n");
}
/**
* Returns an object literal representation of `test`
* free of cyclic properties, etc.
*
* @private
* @param {Test} 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(),
speed: test.speed,
};
}
JSONStream.description = "newline delimited JSON events";
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