refactor: use constants for event names instead of string literals

- also a few other string literals got replaced, but not error messages nor codes - a couple adjacent refactors: - move the suite "GC" function into the `Suite` prototype - move stats collector init to `Mocha#run` due to circular reference with `Runner` - rename a couple fixture files lacking proper extension - rename variable in integration test helpers - specifically did NOT refactor event names from Node.js incl. `error` and `uncaughtException`
mochajs · Jan 4, 2019 · f55b965 · f55b965
1 parent cb1c6b0
commit f55b965
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Showing 34 changed files with 354 additions and 233 deletions.
diff --git a/lib/browser/growl.js b/lib/browser/growl.js
@@ -10,6 +10,7 @@
  */
 var Date = global.Date;
 var setTimeout = global.setTimeout;
+var Runner = require('../runner');
 
 /**
  * Checks if browser notification support exists.
@@ -53,7 +54,7 @@ exports.notify = function(runner) {
       .catch(notPermitted);
   };
 
-  runner.once('end', sendNotification);
+  runner.once(Runner.constants.RUNNER_EVENT_END, sendNotification);
 };
 
 /**

diff --git a/lib/growl.js b/lib/growl.js
@@ -8,6 +8,7 @@
 const os = require('os');
 const path = require('path');
 const {sync: which} = require('which');
+const Runner = require('./runner');
 
 /**
  * @summary
@@ -41,7 +42,7 @@ exports.isCapable = () => {
  * @param {Runner} runner - Runner instance.
  */
 exports.notify = runner => {
-  runner.once('end', () => {
+  runner.once(Runner.constants.RUNNER_EVENT_END, () => {
     display(runner);
   });
 };

diff --git a/lib/interfaces/bdd.js b/lib/interfaces/bdd.js
@@ -1,6 +1,7 @@
 'use strict';
 
 var Test = require('../test');
+var Suite = require('../suite');
 
 /**
  * BDD-style interface:
@@ -22,7 +23,11 @@ var Test = require('../test');
 module.exports = function bddInterface(suite) {
   var suites = [suite];
 
-  suite.on('pre-require', function(context, file, mocha) {
+  suite.on(Suite.constants.SUITE_EVENT_PRE_REQUIRE, function(
+    context,
+    file,
+    mocha
+  ) {
     var common = require('./common')(suites, context, mocha);
 
     context.before = common.before;

diff --git a/lib/interfaces/exports.js b/lib/interfaces/exports.js
@@ -22,7 +22,7 @@ var Test = require('../test');
 module.exports = function(suite) {
   var suites = [suite];
 
-  suite.on('require', visit);
+  suite.on(Suite.constants.SUITE_EVENT_REQUIRE, visit);
 
   function visit(obj, file) {
     var suite;

diff --git a/lib/interfaces/qunit.js b/lib/interfaces/qunit.js
@@ -1,6 +1,7 @@
 'use strict';
 
 var Test = require('../test');
+var Suite = require('../suite');
 
 /**
  * QUnit-style interface:
@@ -30,7 +31,11 @@ var Test = require('../test');
 module.exports = function qUnitInterface(suite) {
   var suites = [suite];
 
-  suite.on('pre-require', function(context, file, mocha) {
+  suite.on(Suite.constants.SUITE_EVENT_PRE_REQUIRE, function(
+    context,
+    file,
+    mocha
+  ) {
     var common = require('./common')(suites, context, mocha);
 
     context.before = common.before;

diff --git a/lib/interfaces/tdd.js b/lib/interfaces/tdd.js
@@ -1,6 +1,7 @@
 'use strict';
 
 var Test = require('../test');
+var Suite = require('../suite');
 
 /**
  * TDD-style interface:
@@ -30,7 +31,11 @@ var Test = require('../test');
 module.exports = function(suite) {
   var suites = [suite];
 
-  suite.on('pre-require', function(context, file, mocha) {
+  suite.on(Suite.constants.SUITE_EVENT_PRE_REQUIRE, function(
+    context,
+    file,
+    mocha
+  ) {
     var common = require('./common')(suites, context, mocha);
 
     context.setup = common.beforeEach;

diff --git a/lib/mocha.js b/lib/mocha.js
@@ -14,6 +14,8 @@ var utils = require('./utils');
 var mocharc = require('./mocharc.json');
 var assign = require('object.assign').getPolyfill();
 var errors = require('./errors');
+var Suite = require('./suite');
+var createStatsCollector = require('./stats-collector');
 var createInvalidReporterError = errors.createInvalidReporterError;
 var createInvalidInterfaceError = errors.createInvalidInterfaceError;
 
@@ -51,7 +53,7 @@ exports.Context = require('./context');
  * @memberof Mocha
  */
 exports.Runner = require('./runner');
-exports.Suite = require('./suite');
+exports.Suite = Suite;
 exports.Hook = require('./hook');
 exports.Test = require('./test');
 
@@ -276,7 +278,7 @@ Mocha.prototype.ui = function(name) {
   }
   this._ui = this._ui(this.suite);
 
-  this.suite.on('pre-require', function(context) {
+  this.suite.on(Suite.constants.SUITE_EVENT_PRE_REQUIRE, function(context) {
     exports.afterEach = context.afterEach || context.teardown;
     exports.after = context.after || context.suiteTeardown;
     exports.beforeEach = context.beforeEach || context.setup;
@@ -313,9 +315,9 @@ Mocha.prototype.loadFiles = function(fn) {
   var suite = this.suite;
   this.files.forEach(function(file) {
     file = path.resolve(file);
-    suite.emit('pre-require', global, file, self);
-    suite.emit('require', require(file), file, self);
-    suite.emit('post-require', global, file, self);
+    suite.emit(Suite.constants.SUITE_EVENT_PRE_REQUIRE, global, file, self);
+    suite.emit(Suite.constants.SUITE_EVENT_REQUIRE, require(file), file, self);
+    suite.emit(Suite.constants.SUITE_EVENT_POST_REQUIRE, global, file, self);
   });
   fn && fn();
 };
@@ -759,6 +761,7 @@ Mocha.prototype.run = function(fn) {
   var options = this.options;
   options.files = this.files;
   var runner = new exports.Runner(suite, options.delay);
+  createStatsCollector(runner);
   var reporter = new this._reporter(runner, options);
   runner.ignoreLeaks = options.ignoreLeaks !== false;
   runner.fullStackTrace = options.fullStackTrace;

diff --git a/lib/reporters/base.js b/lib/reporters/base.js
@@ -11,6 +11,7 @@ var diff = require('diff');
 var milliseconds = require('ms');
 var utils = require('../utils');
 var supportsColor = process.browser ? null : require('supports-color');
+var Runner = require('../runner');
 
 /**
  * Expose `Base`.
@@ -274,7 +275,7 @@ function Base(runner) {
   this.stats = runner.stats; // assigned so Reporters keep a closer reference
   this.runner = runner;
 
-  runner.on('pass', function(test) {
+  runner.on(Runner.constants.RUNNER_EVENT_PASS, function(test) {
     if (test.duration > test.slow()) {
       test.speed = 'slow';
     } else if (test.duration > test.slow() / 2) {
@@ -284,7 +285,7 @@ function Base(runner) {
     }
   });
 
-  runner.on('fail', function(test, err) {
+  runner.on(Runner.constants.RUNNER_EVENT_FAIL, function(test, err) {
     if (showDiff(err)) {
       stringifyDiffObjs(err);
     }

diff --git a/lib/reporters/doc.js b/lib/reporters/doc.js
@@ -8,6 +8,7 @@
 
 var Base = require('./base');
 var utils = require('../utils');
+var Runner = require('../runner');
 
 /**
  * Expose `Doc`.
@@ -33,7 +34,7 @@ function Doc(runner) {
     return Array(indents).join('  ');
   }
 
-  runner.on('suite', function(suite) {
+  runner.on(Runner.constants.RUNNER_EVENT_SUITE, function(suite) {
     if (suite.root) {
       return;
     }
@@ -54,13 +55,13 @@ function Doc(runner) {
     --indents;
   });
 
-  runner.on('pass', function(test) {
+  runner.on(Runner.constants.RUNNER_EVENT_PASS, function(test) {
     console.log('%s  <dt>%s</dt>', indent(), utils.escape(test.title));
     var code = utils.escape(utils.clean(test.body));
     console.log('%s  <dd><pre><code>%s</code></pre></dd>', indent(), code);
   });
 
-  runner.on('fail', function(test, err) {
+  runner.on(Runner.constants.RUNNER_EVENT_FAIL, function(test, err) {
     console.log(
       '%s  <dt class="error">%s</dt>',
       indent(),

diff --git a/lib/reporters/dot.js b/lib/reporters/dot.js
@@ -8,6 +8,7 @@
 
 var Base = require('./base');
 var inherits = require('../utils').inherits;
+var Runner = require('../runner');
 
 /**
  * Expose `Dot`.
@@ -31,18 +32,18 @@ function Dot(runner) {
   var width = (Base.window.width * 0.75) | 0;
   var n = -1;
 
-  runner.on('start', function() {
+  runner.on(Runner.constants.RUNNER_EVENT_START, function() {
     process.stdout.write('\n');
   });
 
-  runner.on('pending', function() {
+  runner.on(Runner.constants.RUNNER_EVENT_PENDING, function() {
     if (++n % width === 0) {
       process.stdout.write('\n  ');
     }
     process.stdout.write(Base.color('pending', Base.symbols.comma));
   });
 
-  runner.on('pass', function(test) {
+  runner.on(Runner.constants.RUNNER_EVENT_PASS, function(test) {
     if (++n % width === 0) {
       process.stdout.write('\n  ');
     }
@@ -53,14 +54,14 @@ function Dot(runner) {
     }
   });
 
-  runner.on('fail', function() {
+  runner.on(Runner.constants.RUNNER_EVENT_FAIL, function() {
     if (++n % width === 0) {
       process.stdout.write('\n  ');
     }
     process.stdout.write(Base.color('fail', Base.symbols.bang));
   });
 
-  runner.once('end', function() {
+  runner.once(Runner.constants.RUNNER_EVENT_END, function() {
     console.log();
     self.epilogue();
   });

diff --git a/lib/reporters/html.js b/lib/reporters/html.js
@@ -12,6 +12,7 @@ var Base = require('./base');
 var utils = require('../utils');
 var Progress = require('../browser/progress');
 var escapeRe = require('escape-string-regexp');
+var Runner = require('../runner');
 var escape = utils.escape;
 
 /**
@@ -112,7 +113,7 @@ function HTML(runner) {
     progress.size(40);
   }
 
-  runner.on('suite', function(suite) {
+  runner.on(Runner.constants.RUNNER_EVENT_SUITE, function(suite) {
     if (suite.root) {
       return;
     }
@@ -139,7 +140,7 @@ function HTML(runner) {
     stack.shift();
   });
 
-  runner.on('pass', function(test) {
+  runner.on(Runner.constants.RUNNER_EVENT_PASS, function(test) {
     var url = self.testURL(test);
     var markup =
       '<li class="test pass %e"><h2>%e<span class="duration">%ems</span> ' +
@@ -152,7 +153,7 @@ function HTML(runner) {
     updateStats();
   });
 
-  runner.on('fail', function(test) {
+  runner.on(Runner.constants.RUNNER_EVENT_FAIL, function(test) {
     var el = fragment(
       '<li class="test fail"><h2>%e <a href="%e" class="replay">' +
         playIcon +
@@ -208,7 +209,7 @@ function HTML(runner) {
     updateStats();
   });
 
-  runner.on('pending', function(test) {
+  runner.on(Runner.constants.RUNNER_EVENT_PENDING, function(test) {
     var el = fragment(
       '<li class="test pass pending"><h2>%e</h2></li>',
       test.title

diff --git a/lib/reporters/json-stream.js b/lib/reporters/json-stream.js
@@ -7,6 +7,7 @@
  */
 
 var Base = require('./base');
+var Runner = require('../runner');
 
 /**
  * Expose `JSONStream`.
@@ -29,22 +30,22 @@ function JSONStream(runner) {
   var self = this;
   var total = runner.total;
 
-  runner.once('start', function() {
+  runner.once(Runner.constants.RUNNER_EVENT_START, function() {
     writeEvent(['start', {total: total}]);
   });
 
-  runner.on('pass', function(test) {
+  runner.on(Runner.constants.RUNNER_EVENT_PASS, function(test) {
     writeEvent(['pass', clean(test)]);
   });
 
-  runner.on('fail', function(test, err) {
+  runner.on(Runner.constants.RUNNER_EVENT_FAIL, function(test, err) {
     test = clean(test);
     test.err = err.message;
     test.stack = err.stack || null;
     writeEvent(['fail', test]);
   });
 
-  runner.once('end', function() {
+  runner.once(Runner.constants.RUNNER_EVENT_END, function() {
     writeEvent(['end', self.stats]);
   });
 }

diff --git a/lib/reporters/json.js b/lib/reporters/json.js
@@ -7,6 +7,7 @@
  */
 
 var Base = require('./base');
+var Runner = require('../runner');
 
 /**
  * Expose `JSON`.
@@ -32,23 +33,23 @@ function JSONReporter(runner) {
   var failures = [];
   var passes = [];
 
-  runner.on('test end', function(test) {
+  runner.on(Runner.constants.RUNNER_EVENT_TEST_END, function(test) {
     tests.push(test);
   });
 
-  runner.on('pass', function(test) {
+  runner.on(Runner.constants.RUNNER_EVENT_PASS, function(test) {
     passes.push(test);
   });
 
-  runner.on('fail', function(test) {
+  runner.on(Runner.constants.RUNNER_EVENT_FAIL, function(test) {
     failures.push(test);
   });
 
-  runner.on('pending', function(test) {
+  runner.on(Runner.constants.RUNNER_EVENT_PENDING, function(test) {
     pending.push(test);
   });
 
-  runner.once('end', function() {
+  runner.once(Runner.constants.RUNNER_EVENT_END, function() {
     var obj = {
       stats: self.stats,
       tests: tests.map(clean),