browser tests: use lib to decode urls parts

Use robust lib instead of string processing to extract query
parameters from urls.
See hapijs/hapi#3280 for explanation on
unintuitive query object prototype.

Bug: T187306
Change-Id: Idf80128af6859af8b7d568f59f7d825e3cdc5a91

Author: wiese

tests/selenium/pageobjects/search.page.js

@@ -1,5 +1,6 @@
 'use strict';
 const Page = require( '../../../../../tests/selenium/pageobjects/page' );
+const url = require( 'url' );
 
 class SearchPage extends Page {
 
@@ -16,7 +17,9 @@ class SearchPage extends Page {
 	get searchPreview() { return browser.element( '.mw-advancedSearch-searchPreview' ); }
 	get searchPreviewItems() { return browser.elements( '.mw-advancedSearch-searchPreview .mw-advancedSearch-searchPreview-previewPill' ); }
 
-	formWasSubmitted() { return browser.getUrl().match( /\?advancedSearchOption-original=/ ) !== null; }
+	formWasSubmitted() {
+		return Object.prototype.hasOwnProperty.call( this.getQueryFromUrl(), 'advancedSearchOption-original' );
+	}
 
 	advancedSearchIsCollapsed() {
 		return browser.element( '.mw-advancedSearch-expandablePane > .oo-ui-indicatorElement .oo-ui-indicatorElement-indicator.oo-ui-indicator-down' ).isExisting();
@@ -42,11 +45,12 @@ class SearchPage extends Page {
 		return browser.element( '.oo-ui-tagMultiselectWidget-group > div:nth-child(7) > span:nth-child(2)' );
 	}
 
-	getSearchURL() {
-		let search = browser.getUrl().split( '&' ).filter( function ( part ) {
-			return part.match( /^search=/ );
-		} );
-		return decodeURIComponent( search[ 0 ] );
+	getSearchQueryFromUrl() {
+		return this.getQueryFromUrl().search;
+	}
+
+	getQueryFromUrl() {
+		return url.parse( browser.getUrl(), true ).query;
 	}
 
 	getInfoPopupContent( popup ) {

tests/selenium/specs/advancedsearch.js

@@ -115,7 +115,7 @@ describe( 'Advanced Search', function () {
 		browser.keys( 'test4 test5' );
 		SearchPage.searchExactText.setValue( '"test1 test2"\uE007' );
 
-		assert( SearchPage.getSearchURL() === 'search=test+"test1+test2"+-test3+test4+OR+test5' );
+		assert.equal( SearchPage.getSearchQueryFromUrl(), 'test "test1 test2" -test3 test4 OR test5' );
 
 	} );
 

tests/selenium/specs/searchPage.js

@@ -58,8 +58,10 @@ describe( 'Search in page text block functions properly', function () {
 		browser.keys( '40' );
 		SearchPage.searchImageHeight.click();
 		browser.keys( '40' );
+
 		SearchPage.searchButton.click();
-		assert( SearchPage.getSearchURL() === 'search=old+-new+big+OR+enormous+OR+giant+intitle:house+hastemplate:"Main+Page"+filemime:image/gif+filew:>40+fileh:>40' );
+
+		assert.equal( SearchPage.getSearchQueryFromUrl(), 'old -new big OR enormous OR giant intitle:house hastemplate:"Main Page" filemime:image/gif filew:>40 fileh:>40' );
 	} );
 
 	it( 'adds the namespace "File" and dimension fields are visible when searching for files of type image', function () {