mediawiki.user: Minor clean up of code and unit tests

* Clarify getRegistration() return documentation and minor
  optimisation of code order.

* Fix typo in test name for getUserInfo().

* Remove redundant test expect numbers.
  Follows-up 7c363752ed.

* Separate getter assertions for anonymous and logged-in.
  Avoid changing the fixture mid-test. Let setup/teardown
  clean up in the middle.

Change-Id: If777d44a571ac590e91ed84060ea714df67f8f2f

resources/src/mediawiki/mediawiki.user.js

@@ -104,20 +104,17 @@
 		/**
 		 * Get date user registered, if available
 		 *
-		 * @return {Date|boolean|null} Date user registered, or false for anonymous users, or
+		 * @return {boolean|null|Date} False for anonymous users, null if data is
-		 *  null when data is not available
+		 *  unavailable, or Date for when the user registered.
 		 */
 		getRegistration: function () {
-			var registration = mw.config.get( 'wgUserRegistration' );
 			if ( mw.user.isAnon() ) {
 				return false;
 			}
-			if ( registration === null ) {
+			var registration = mw.config.get( 'wgUserRegistration' );
-				// Information may not be available if they signed up before
+			// Registration may be unavailable if the user signed up before MediaWiki
-				// MW began storing this.
+			// began tracking this.
-				return null;
+			return !registration ? null : new Date( registration );
-			}
-			return new Date( registration );
 		},
 
 		/**

tests/qunit/suites/resources/mediawiki/mediawiki.user.test.js

@@ -15,32 +15,32 @@
 		}
 	} ) );
 
-	QUnit.test( 'options', 1, function ( assert ) {
+	QUnit.test( 'options', function ( assert ) {
 		assert.ok( mw.user.options instanceof mw.Map, 'options instance of mw.Map' );
 	} );
 
-	QUnit.test( 'user status', 7, function ( assert ) {
+	QUnit.test( 'getters (anonymous)', function ( assert ) {
-
 		// Forge an anonymous user
 		mw.config.set( 'wgUserName', null );
 		delete mw.config.values.wgUserId;
 
-		assert.strictEqual( mw.user.getName(), null, 'user.getName() returns null when anonymous' );
+		assert.strictEqual( mw.user.getName(), null, 'getName()' );
-		assert.assertTrue( mw.user.isAnon(), 'user.isAnon() returns true when anonymous' );
+		assert.strictEqual( mw.user.isAnon(), true, 'isAnon()' );
-		assert.strictEqual( mw.user.getId(), 0, 'user.getId() returns 0 when anonymous' );
+		assert.strictEqual( mw.user.getId(), 0, 'getId()' );
+	} );
 
-		// Not part of startUp module
+	QUnit.test( 'getters (logged-in)', function ( assert ) {
 		mw.config.set( 'wgUserName', 'John' );
 		mw.config.set( 'wgUserId', 123 );
 
-		assert.equal( mw.user.getName(), 'John', 'user.getName() returns username when logged-in' );
+		assert.equal( mw.user.getName(), 'John', 'getName()' );
-		assert.assertFalse( mw.user.isAnon(), 'user.isAnon() returns false when logged-in' );
+		assert.strictEqual( mw.user.isAnon(), false, 'isAnon()' );
-		assert.strictEqual( mw.user.getId(), 123, 'user.getId() returns correct ID when logged-in' );
+		assert.strictEqual( mw.user.getId(), 123, 'getId()' );
 
-		assert.equal( mw.user.id(), 'John', 'user.id Returns username when logged-in' );
+		assert.equal( mw.user.id(), 'John', 'user.id()' );
 	} );
 
-	QUnit.test( 'getUserInfos', 3, function ( assert ) {
+	QUnit.test( 'getUserInfo', function ( assert ) {
 		mw.config.set( 'wgUserGroups', [ '*', 'user' ] );
 
 		mw.user.getGroups( function ( groups ) {
@@ -64,7 +64,7 @@
 		this.server.respond();
 	} );
 
-	QUnit.test( 'generateRandomSessionId', 4, function ( assert ) {
+	QUnit.test( 'generateRandomSessionId', function ( assert ) {
 		var result, result2;
 
 		result = mw.user.generateRandomSessionId();
@@ -77,7 +77,7 @@
 
 	} );
 
-	QUnit.test( 'generateRandomSessionId (fallback)', 4, function ( assert ) {
+	QUnit.test( 'generateRandomSessionId (fallback)', function ( assert ) {
 		var result, result2;
 
 		// Pretend crypto API is not there to test the Math.random fallback