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- 'use strict';
- /**
- * @module JSONStream
- */
- /**
- * Module dependencies.
- */
-
- var Base = require('./base');
- var constants = require('../runner').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()
- };
- }
-
- JSONStream.description = 'newline delimited JSON events';
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