diff --git a/code/Model/VirtualPage.php b/code/Model/VirtualPage.php
index 54668552..6bd49441 100644
--- a/code/Model/VirtualPage.php
+++ b/code/Model/VirtualPage.php
@@ -103,8 +103,8 @@ class VirtualPage extends Page
     public function getNonVirtualisedFields()
     {
         return array_merge(
-            VirtualPage::config()->non_virtual_fields,
-            VirtualPage::config()->initially_copied_fields
+            self::config()->non_virtual_fields,
+            self::config()->initially_copied_fields
         );
     }
 
diff --git a/code/Search/SearchForm.php b/code/Search/SearchForm.php
index 1fdaf24a..1e0e1b4f 100644
--- a/code/Search/SearchForm.php
+++ b/code/Search/SearchForm.php
@@ -2,8 +2,10 @@
 
 namespace SilverStripe\CMS\Search;
 
+use BadMethodCallException;
+use SilverStripe\Assets\File;
 use SilverStripe\CMS\Model\SiteTree;
-use SilverStripe\Control\Controller;
+use SilverStripe\Control\RequestHandler;
 use SilverStripe\Forms\FieldList;
 use SilverStripe\Forms\Form;
 use SilverStripe\Forms\FormAction;
@@ -26,19 +28,22 @@ use Translatable;
  */
 class SearchForm extends Form
 {
-
     /**
-     * @var int $pageLength How many results are shown per page.
+     * How many results are shown per page.
      * Relies on pagination being implemented in the search results template.
+     *
+     * @var int
      */
     protected $pageLength = 10;
 
     /**
      * Classes to search
+     *
+     * @var array
      */
     protected $classesToSearch = array(
-        "SilverStripe\\CMS\\Model\\SiteTree",
-        "SilverStripe\\Assets\\File"
+        SiteTree::class,
+        File::class
     );
 
     private static $casting = array(
@@ -46,15 +51,19 @@ class SearchForm extends Form
     );
 
     /**
-     *
-     * @param Controller $controller
+     * @skipUpgrade
+     * @param RequestHandler $controller
      * @param string $name The name of the form (used in URL addressing)
      * @param FieldList $fields Optional, defaults to a single field named "Search". Search logic needs to be customized
      *  if fields are added to the form.
      * @param FieldList $actions Optional, defaults to a single field named "Go".
      */
-    public function __construct($controller, $name, $fields = null, $actions = null)
-    {
+    public function __construct(
+        RequestHandler $controller = null,
+        $name = 'SearchForm',
+        FieldList $fields = null,
+        FieldList $actions = null
+    ) {
         if (!$fields) {
             $fields = new FieldList(
                 new TextField('Search', _t('SearchForm.SEARCH', 'Search'))
@@ -69,7 +78,7 @@ class SearchForm extends Form
 
         if (!$actions) {
             $actions = new FieldList(
-                new FormAction("getResults", _t('SearchForm.GO', 'Go'))
+                new FormAction("results", _t('SearchForm.GO', 'Go'))
             );
         }
 
@@ -88,13 +97,12 @@ class SearchForm extends Form
      */
     public function classesToSearch($classes)
     {
-        $supportedClasses = array('SilverStripe\\CMS\\Model\\SiteTree', 'SilverStripe\\Assets\\File');
+        $supportedClasses = array(SiteTree::class, File::class);
         $illegalClasses = array_diff($classes, $supportedClasses);
         if ($illegalClasses) {
-            user_error(
+            throw new BadMethodCallException(
                 "SearchForm::classesToSearch() passed illegal classes '" . implode("', '", $illegalClasses)
-                . "'.  At this stage, only File and SiteTree are allowed",
-                E_USER_WARNING
+                . "'.  At this stage, only File and SiteTree are allowed"
             );
         }
         $legalClasses = array_intersect($classes, $supportedClasses);
@@ -112,34 +120,33 @@ class SearchForm extends Form
     }
 
     /**
-     * Return dataObjectSet of the results using $_REQUEST to get info from form.
+     * Return dataObjectSet of the results using current request to get info from form.
      * Wraps around {@link searchEngine()}.
      *
-     * @param int $pageLength DEPRECATED 2.3 Use SearchForm->pageLength
-     * @param array $data Request data as an associative array. Should contain at least a key 'Search' with all searched keywords.
      * @return SS_List
      */
-    public function getResults($pageLength = null, $data = null)
+    public function getResults()
     {
-        // legacy usage: $data was defaulting to $_REQUEST, parameter not passed in doc.silverstripe.org tutorials
-        if (!isset($data) || !is_array($data)) {
-            $data = $_REQUEST;
-        }
+        // Get request data from request handler
+        $request = $this->getRequestHandler()->getRequest();
 
         // set language (if present)
+        $locale = null;
+        $origLocale = null;
         if (class_exists('Translatable')) {
-            if (SiteTree::singleton()->hasExtension('Translatable') && isset($data['searchlocale'])) {
-                if ($data['searchlocale'] == "ALL") {
+            $locale = $request->requestVar('searchlocale');
+            if (SiteTree::singleton()->hasExtension('Translatable') && $locale) {
+                if ($locale === "ALL") {
                     Translatable::disable_locale_filter();
                 } else {
                     $origLocale = Translatable::get_current_locale();
 
-                    Translatable::set_current_locale($data['searchlocale']);
+                    Translatable::set_current_locale($locale);
                 }
             }
         }
 
-        $keywords = $data['Search'];
+        $keywords = $request->requestVar('Search');
 
         $andProcessor = create_function('$matches', '
 	 		return " +" . $matches[2] . " +" . $matches[4] . " ";
@@ -155,16 +162,15 @@ class SearchForm extends Form
 
         $keywords = $this->addStarsToKeywords($keywords);
 
-        if (!$pageLength) {
-            $pageLength = $this->pageLength;
-        }
-        $start = isset($_GET['start']) ? (int)$_GET['start'] : 0;
+        $pageLength = $this->getPageLength();
+        $start = $request->requestVar('start') ?: 0;
 
-        if (strpos($keywords, '"') !== false || strpos($keywords, '+') !== false || strpos($keywords, '-') !== false || strpos($keywords, '*') !== false) {
-            $results = DB::get_conn()->searchEngine($this->classesToSearch, $keywords, $start, $pageLength, "\"Relevance\" DESC", "", true);
-        } else {
-            $results = DB::get_conn()->searchEngine($this->classesToSearch, $keywords, $start, $pageLength);
-        }
+        $booleanSearch =
+            strpos($keywords, '"') !== false ||
+            strpos($keywords, '+') !== false ||
+            strpos($keywords, '-') !== false ||
+            strpos($keywords, '*') !== false;
+        $results = DB::get_conn()->searchEngine($this->classesToSearch, $keywords, $start, $pageLength, "\"Relevance\" DESC", "", $booleanSearch);
 
         // filter by permission
         if ($results) {
@@ -177,8 +183,8 @@ class SearchForm extends Form
 
         // reset locale
         if (class_exists('Translatable')) {
-            if (SiteTree::singleton()->hasExtension('Translatable') && isset($data['searchlocale'])) {
-                if ($data['searchlocale'] == "ALL") {
+            if (SiteTree::singleton()->hasExtension('Translatable') && $locale) {
+                if ($locale == "ALL") {
                     Translatable::enable_locale_filter();
                 } else {
                     Translatable::set_current_locale($origLocale);
@@ -216,22 +222,11 @@ class SearchForm extends Form
     /**
      * Get the search query for display in a "You searched for ..." sentence.
      *
-     * @param array $data
      * @return string
      */
-    public function getSearchQuery($data = null)
+    public function getSearchQuery()
     {
-        // legacy usage: $data was defaulting to $_REQUEST, parameter not passed in doc.silverstripe.org tutorials
-        if (!isset($data)) {
-            $data = $_REQUEST;
-        }
-
-        // The form could be rendered without the search being done, so check for that.
-        if (isset($data['Search'])) {
-            return $data['Search'];
-        }
-
-        return null;
+        return $this->getRequestHandler()->getRequest()->requestVar('Search');
     }
 
     /**
diff --git a/tests/model/RedirectorPageTest.php b/tests/model/RedirectorPageTest.php
index 96959637..d440c150 100644
--- a/tests/model/RedirectorPageTest.php
+++ b/tests/model/RedirectorPageTest.php
@@ -22,15 +22,15 @@ class RedirectorPageTest extends FunctionalTest
     public function testGoodRedirectors()
     {
         /* For good redirectors, the final destination URL will be returned */
-        $this->assertEquals("http://www.google.com", $this->objFromFixture('SilverStripe\\CMS\\Model\\RedirectorPage', 'goodexternal')->Link());
-        $this->assertEquals(Director::baseURL() . "redirection-dest/", $this->objFromFixture('SilverStripe\\CMS\\Model\\RedirectorPage', 'goodinternal')->redirectionLink());
-        $this->assertEquals(Director::baseURL() . "redirection-dest/", $this->objFromFixture('SilverStripe\\CMS\\Model\\RedirectorPage', 'goodinternal')->Link());
+        $this->assertEquals("http://www.google.com", $this->objFromFixture(RedirectorPage::class, 'goodexternal')->Link());
+        $this->assertEquals(Director::baseURL() . "redirection-dest/", $this->objFromFixture(RedirectorPage::class, 'goodinternal')->redirectionLink());
+        $this->assertEquals(Director::baseURL() . "redirection-dest/", $this->objFromFixture(RedirectorPage::class, 'goodinternal')->Link());
     }
 
     public function testEmptyRedirectors()
     {
         /* If a redirector page is misconfigured, then its link method will just return the usual URLSegment-generated value */
-        $page1 = $this->objFromFixture('SilverStripe\\CMS\\Model\\RedirectorPage', 'badexternal');
+        $page1 = $this->objFromFixture(RedirectorPage::class, 'badexternal');
         $this->assertEquals(Director::baseURL() . 'bad-external/', $page1->Link());
 
         /* An error message will be shown if you visit it */
@@ -38,7 +38,7 @@ class RedirectorPageTest extends FunctionalTest
         $this->assertContains('message-setupWithoutRedirect', $content);
 
         /* This also applies for internal links */
-        $page2 = $this->objFromFixture('SilverStripe\\CMS\\Model\\RedirectorPage', 'badinternal');
+        $page2 = $this->objFromFixture(RedirectorPage::class, 'badinternal');
         $this->assertEquals(Director::baseURL() . 'bad-internal/', $page2->Link());
         $content = $this->get(Director::makeRelative($page2->Link()))->getBody();
         $this->assertContains('message-setupWithoutRedirect', $content);
@@ -47,14 +47,14 @@ class RedirectorPageTest extends FunctionalTest
     public function testReflexiveAndTransitiveInternalRedirectors()
     {
         /* Reflexive redirectors are those that point to themselves.  They should behave the same as an empty redirector */
-        $page = $this->objFromFixture('SilverStripe\\CMS\\Model\\RedirectorPage', 'reflexive');
+        $page = $this->objFromFixture(RedirectorPage::class, 'reflexive');
         $this->assertEquals(Director::baseURL() . 'reflexive/', $page->Link());
         $content = $this->get(Director::makeRelative($page->Link()))->getBody();
         $this->assertContains('message-setupWithoutRedirect', $content);
 
         /* Transitive redirectors are those that point to another redirector page.  They should send people to the URLSegment
 		 * of the destination page - the middle-stop, so to speak.  That should redirect to the final destination */
-        $page = $this->objFromFixture('SilverStripe\\CMS\\Model\\RedirectorPage', 'transitive');
+        $page = $this->objFromFixture(RedirectorPage::class, 'transitive');
         $this->assertEquals(Director::baseURL() . 'good-internal/', $page->Link());
 
         $this->autoFollowRedirection = false;
@@ -64,7 +64,7 @@ class RedirectorPageTest extends FunctionalTest
 
     public function testExternalURLGetsPrefixIfNotSet()
     {
-        $page = $this->objFromFixture('SilverStripe\\CMS\\Model\\RedirectorPage', 'externalnoprefix');
+        $page = $this->objFromFixture(RedirectorPage::class, 'externalnoprefix');
         $this->assertEquals($page->ExternalURL, 'http://google.com', 'onBeforeWrite has prefixed with http');
         $page->write();
         $this->assertEquals($page->ExternalURL, 'http://google.com', 'onBeforeWrite will not double prefix if written again!');
@@ -90,12 +90,12 @@ class RedirectorPageTest extends FunctionalTest
      */
     public function testRedirectRespectsFinishedResponse()
     {
-        $page = $this->objFromFixture('SilverStripe\\CMS\\Model\\RedirectorPage', 'goodinternal');
+        $page = $this->objFromFixture(RedirectorPage::class, 'goodinternal');
         RedirectorPageController::add_extension('RedirectorPageTest_RedirectExtension');
 
         $response = $this->get($page->regularLink());
         $this->assertEquals(302, $response->getStatusCode());
-        $this->assertEquals('/foo', $response->getHeader('Location'));
+        $this->assertEquals('http://www.mysite.com/foo', $response->getHeader('Location'));
 
         RedirectorPageController::remove_extension('RedirectorPageTest_RedirectExtension');
     }
diff --git a/tests/search/SearchFormTest.php b/tests/search/SearchFormTest.php
index 667860dc..466ec874 100644
--- a/tests/search/SearchFormTest.php
+++ b/tests/search/SearchFormTest.php
@@ -1,5 +1,10 @@
 <?php
 
+use SilverStripe\Assets\File;
+use SilverStripe\CMS\Controllers\ModelAsController;
+use SilverStripe\CMS\Model\SiteTree;
+use SilverStripe\Control\HTTPRequest;
+use SilverStripe\Core\Config\Config;
 use SilverStripe\ORM\DB;
 use SilverStripe\ORM\Versioning\Versioned;
 use SilverStripe\MSSQL\MSSQLDatabase;
@@ -8,6 +13,7 @@ use SilverStripe\CMS\Controllers\ContentController;
 use SilverStripe\CMS\Search\SearchForm;
 use SilverStripe\ORM\Search\FulltextSearchable;
 use SilverStripe\Dev\FunctionalTest;
+use SilverStripe\Security\Member;
 
 /**
  * @package cms
@@ -24,9 +30,12 @@ class ZZZSearchFormTest extends FunctionalTest
     protected static $fixture_file = 'SearchFormTest.yml';
 
     protected $illegalExtensions = array(
-        'SilverStripe\\CMS\\Model\\SiteTree' => array('SiteTreeSubsites', 'Translatable')
+        SiteTree::class => array('SiteTreeSubsites', 'Translatable')
     );
 
+    /**
+     * @var ContentController
+     */
     protected $mockController;
 
     public function waitUntilIndexingFinished()
@@ -42,6 +51,7 @@ class ZZZSearchFormTest extends FunctionalTest
         // HACK Postgres doesn't refresh TSearch indexes when the schema changes after CREATE TABLE
         // MySQL will need a different table type
         self::kill_temp_db();
+        Config::modify();
         FulltextSearchable::enable();
         self::create_temp_db();
         $this->resetDBSchema(true);
@@ -52,8 +62,9 @@ class ZZZSearchFormTest extends FunctionalTest
     {
         parent::setUp();
 
-        $holderPage = $this->objFromFixture('SilverStripe\\CMS\\Model\\SiteTree', 'searchformholder');
-        $this->mockController = new ContentController($holderPage);
+        /** @var Page $holderPage */
+        $holderPage = $this->objFromFixture(SiteTree::class, 'searchformholder');
+        $this->mockController = ModelAsController::controller_for($holderPage);
 
         $this->waitUntilIndexingFinished();
     }
@@ -64,7 +75,7 @@ class ZZZSearchFormTest extends FunctionalTest
     protected function checkFulltextSupport()
     {
         $conn = DB::get_conn();
-        if (class_exists('SilverStripe\\MSSQL\\MSSQLDatabase') && $conn instanceof MSSQLDatabase) {
+        if (class_exists(MSSQLDatabase::class) && $conn instanceof MSSQLDatabase) {
             $supports = $conn->fullTextEnabled();
         } else {
             $supports = true;
@@ -75,35 +86,44 @@ class ZZZSearchFormTest extends FunctionalTest
         return $supports;
     }
 
+    /**
+     * @skipUpgrade
+     */
     public function testSearchFormTemplateCanBeChanged()
     {
         if (!$this->checkFulltextSupport()) {
             return;
         }
 
-        $sf = new SearchForm($this->mockController, 'SilverStripe\\CMS\\Search\\SearchForm');
+        $sf = new SearchForm($this->mockController);
 
         $sf->setTemplate('BlankPage');
 
         $this->assertContains(
-            '<body class="SearchForm Form RequestHandler BlankPage">',
+            '<body class="SearchForm Form BlankPage">',
             $sf->forTemplate()
         );
     }
 
+    /**
+     * @skipUpgrade
+     */
     public function testPublishedPagesMatchedByTitle()
     {
         if (!$this->checkFulltextSupport()) {
             return;
         }
 
-        $sf = new SearchForm($this->mockController, 'SilverStripe\\CMS\\Search\\SearchForm');
+        $request = new HTTPRequest('GET', 'search', ['Search'=>'publicPublishedPage']);
+        $this->mockController->setRequest($request);
+        $sf = new SearchForm($this->mockController);
 
-        $publishedPage = $this->objFromFixture('SilverStripe\\CMS\\Model\\SiteTree', 'publicPublishedPage');
+        $publishedPage = $this->objFromFixture(SiteTree::class, 'publicPublishedPage');
         $publishedPage->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);
 
         $this->waitUntilIndexingFinished();
-        $results = $sf->getResults(null, array('Search'=>'publicPublishedPage'));
+
+        $results = $sf->getResults();
         $this->assertContains(
             $publishedPage->ID,
             $results->column('ID'),
@@ -111,21 +131,26 @@ class ZZZSearchFormTest extends FunctionalTest
         );
     }
 
+    /**
+     * @skipUpgrade
+     */
     public function testDoubleQuotesPublishedPagesMatchedByTitle()
     {
         if (!$this->checkFulltextSupport()) {
             return;
         }
 
-        $sf = new SearchForm($this->mockController, 'SilverStripe\\CMS\\Search\\SearchForm');
+        $request = new HTTPRequest('GET', 'search', ['Search'=>'"finding butterflies"']);
+        $this->mockController->setRequest($request);
+        $sf = new SearchForm($this->mockController);
 
-        $publishedPage = $this->objFromFixture('SilverStripe\\CMS\\Model\\SiteTree', 'publicPublishedPage');
+        $publishedPage = $this->objFromFixture(SiteTree::class, 'publicPublishedPage');
         $publishedPage->Title = "finding butterflies";
         $publishedPage->write();
         $publishedPage->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);
 
         $this->waitUntilIndexingFinished();
-        $results = $sf->getResults(null, array('Search'=>'"finding butterflies"'));
+        $results = $sf->getResults();
         $this->assertContains(
             $publishedPage->ID,
             $results->column('ID'),
@@ -133,16 +158,21 @@ class ZZZSearchFormTest extends FunctionalTest
         );
     }
 
+    /**
+     * @skipUpgrade
+     */
     public function testUnpublishedPagesNotIncluded()
     {
         if (!$this->checkFulltextSupport()) {
             return;
         }
 
-        $sf = new SearchForm($this->mockController, 'SilverStripe\\CMS\\Search\\SearchForm');
+        $request = new HTTPRequest('GET', 'search', ['Search'=>'publicUnpublishedPage']);
+        $this->mockController->setRequest($request);
+        $sf = new SearchForm($this->mockController);
 
-        $results = $sf->getResults(null, array('Search'=>'publicUnpublishedPage'));
-        $unpublishedPage = $this->objFromFixture('SilverStripe\\CMS\\Model\\SiteTree', 'publicUnpublishedPage');
+        $results = $sf->getResults();
+        $unpublishedPage = $this->objFromFixture(SiteTree::class, 'publicUnpublishedPage');
         $this->assertNotContains(
             $unpublishedPage->ID,
             $results->column('ID'),
@@ -156,20 +186,22 @@ class ZZZSearchFormTest extends FunctionalTest
             return;
         }
 
-        $sf = new SearchForm($this->mockController, 'SilverStripe\\CMS\\Search\\SearchForm');
+        $request = new HTTPRequest('GET', 'search', ['Search'=>'restrictedViewLoggedInUsers']);
+        $this->mockController->setRequest($request);
+        $sf = new SearchForm($this->mockController);
 
-        $page = $this->objFromFixture('SilverStripe\\CMS\\Model\\SiteTree', 'restrictedViewLoggedInUsers');
+        $page = $this->objFromFixture(SiteTree::class, 'restrictedViewLoggedInUsers');
         $page->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);
-        $results = $sf->getResults(null, array('Search'=>'restrictedViewLoggedInUsers'));
+        $results = $sf->getResults();
         $this->assertNotContains(
             $page->ID,
             $results->column('ID'),
             'Page with "Restrict to logged in users" doesnt show without valid login'
         );
 
-        $member = $this->objFromFixture('SilverStripe\\Security\\Member', 'randomuser');
+        $member = $this->objFromFixture(Member::class, 'randomuser');
         $member->logIn();
-        $results = $sf->getResults(null, array('Search'=>'restrictedViewLoggedInUsers'));
+        $results = $sf->getResults();
         $this->assertContains(
             $page->ID,
             $results->column('ID'),
@@ -184,20 +216,22 @@ class ZZZSearchFormTest extends FunctionalTest
             return;
         }
 
-        $sf = new SearchForm($this->mockController, 'SilverStripe\\CMS\\Search\\SearchForm');
+        $request = new HTTPRequest('GET', 'search', ['Search'=>'restrictedViewOnlyWebsiteUsers']);
+        $this->mockController->setRequest($request);
+        $sf = new SearchForm($this->mockController);
 
-        $page = $this->objFromFixture('SilverStripe\\CMS\\Model\\SiteTree', 'restrictedViewOnlyWebsiteUsers');
+        $page = $this->objFromFixture(SiteTree::class, 'restrictedViewOnlyWebsiteUsers');
         $page->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);
-        $results = $sf->getResults(null, array('Search'=>'restrictedViewOnlyWebsiteUsers'));
+        $results = $sf->getResults();
         $this->assertNotContains(
             $page->ID,
             $results->column('ID'),
             'Page with "Restrict to these users" doesnt show without valid login'
         );
 
-        $member = $this->objFromFixture('SilverStripe\\Security\\Member', 'randomuser');
+        $member = $this->objFromFixture(Member::class, 'randomuser');
         $member->logIn();
-        $results = $sf->getResults(null, array('Search'=>'restrictedViewOnlyWebsiteUsers'));
+        $results = $sf->getResults();
         $this->assertNotContains(
             $page->ID,
             $results->column('ID'),
@@ -205,9 +239,9 @@ class ZZZSearchFormTest extends FunctionalTest
         );
         $member->logOut();
 
-        $member = $this->objFromFixture('SilverStripe\\Security\\Member', 'websiteuser');
+        $member = $this->objFromFixture(Member::class, 'websiteuser');
         $member->logIn();
-        $results = $sf->getResults(null, array('Search'=>'restrictedViewOnlyWebsiteUsers'));
+        $results = $sf->getResults();
         $this->assertContains(
             $page->ID,
             $results->column('ID'),
@@ -218,23 +252,25 @@ class ZZZSearchFormTest extends FunctionalTest
 
     public function testInheritedRestrictedPagesNotIncluded()
     {
-        $sf = new SearchForm($this->mockController, 'SilverStripe\\CMS\\Search\\SearchForm');
+        $request = new HTTPRequest('GET', 'search', ['Search'=>'inheritRestrictedView']);
+        $this->mockController->setRequest($request);
+        $sf = new SearchForm($this->mockController);
 
-        $parent = $this->objFromFixture('SilverStripe\\CMS\\Model\\SiteTree', 'restrictedViewLoggedInUsers');
+        $parent = $this->objFromFixture(SiteTree::class, 'restrictedViewLoggedInUsers');
         $parent->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);
 
-        $page = $this->objFromFixture('SilverStripe\\CMS\\Model\\SiteTree', 'inheritRestrictedView');
+        $page = $this->objFromFixture(SiteTree::class, 'inheritRestrictedView');
         $page->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);
-        $results = $sf->getResults(null, array('Search'=>'inheritRestrictedView'));
+        $results = $sf->getResults();
         $this->assertNotContains(
             $page->ID,
             $results->column('ID'),
             'Page inheriting "Restrict to loggedin users" doesnt show without valid login'
         );
 
-        $member = $this->objFromFixture('SilverStripe\\Security\\Member', 'websiteuser');
+        $member = $this->objFromFixture(Member::class, 'websiteuser');
         $member->logIn();
-        $results = $sf->getResults(null, array('Search'=>'inheritRestrictedView'));
+        $results = $sf->getResults();
         $this->assertContains(
             $page->ID,
             $results->column('ID'),
@@ -249,14 +285,16 @@ class ZZZSearchFormTest extends FunctionalTest
             return;
         }
 
-        $sf = new SearchForm($this->mockController, 'SilverStripe\\CMS\\Search\\SearchForm');
+        $request = new HTTPRequest('GET', 'search', ['Search'=>'dontShowInSearchPage']);
+        $this->mockController->setRequest($request);
+        $sf = new SearchForm($this->mockController);
 
-        $page = $this->objFromFixture('SilverStripe\\CMS\\Model\\SiteTree', 'dontShowInSearchPage');
-        $results = $sf->getResults(null, array('Search'=>'dontShowInSearchPage'));
+        $page = $this->objFromFixture(SiteTree::class, 'dontShowInSearchPage');
+        $results = $sf->getResults();
         $this->assertNotContains(
             $page->ID,
             $results->column('ID'),
-            'Page with "Show in Search" disabled doesnt show'
+            'Page with "Show in Search" disabled does not show'
         );
     }
 
@@ -266,21 +304,27 @@ class ZZZSearchFormTest extends FunctionalTest
             return;
         }
 
-        $sf = new SearchForm($this->mockController, 'SilverStripe\\CMS\\Search\\SearchForm');
+        $request = new HTTPRequest('GET', 'search', ['Search'=>'dontShowInSearchFile']);
+        $this->mockController->setRequest($request);
+        $sf = new SearchForm($this->mockController);
 
-        $dontShowInSearchFile = $this->objFromFixture('SilverStripe\\Assets\\File', 'dontShowInSearchFile');
+        $dontShowInSearchFile = $this->objFromFixture(File::class, 'dontShowInSearchFile');
         $dontShowInSearchFile->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);
-        $showInSearchFile = $this->objFromFixture('SilverStripe\\Assets\\File', 'showInSearchFile');
+        $showInSearchFile = $this->objFromFixture(File::class, 'showInSearchFile');
         $showInSearchFile->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);
 
-        $results = $sf->getResults(null, array('Search'=>'dontShowInSearchFile'));
+        $results = $sf->getResults();
         $this->assertNotContains(
             $dontShowInSearchFile->ID,
             $results->column('ID'),
             'File with "Show in Search" disabled doesnt show'
         );
 
-        $results = $sf->getResults(null, array('Search'=>'showInSearchFile'));
+        // Check ShowInSearch=1 can be found
+        $request = new HTTPRequest('GET', 'search', ['Search'=>'showInSearchFile']);
+        $this->mockController->setRequest($request);
+        $sf = new SearchForm($this->mockController);
+        $results = $sf->getResults();
         $this->assertContains(
             $showInSearchFile->ID,
             $results->column('ID'),
@@ -294,23 +338,29 @@ class ZZZSearchFormTest extends FunctionalTest
             return;
         }
 
-        if (class_exists('SilverStripe\\PostgreSQL\\PostgreSQLDatabase') && DB::get_conn() instanceof PostgreSQLDatabase) {
+        if (class_exists(PostgreSQLDatabase::class) && DB::get_conn() instanceof PostgreSQLDatabase) {
             $this->markTestSkipped("PostgreSQLDatabase doesn't support entity-encoded searches");
         }
 
-        $sf = new SearchForm($this->mockController, 'SilverStripe\\CMS\\Search\\SearchForm');
+        $request = new HTTPRequest('GET', 'search', ['Search'=>'Brötchen']);
+        $this->mockController->setRequest($request);
+        $sf = new SearchForm($this->mockController);
 
-        $pageWithSpecialChars = $this->objFromFixture('SilverStripe\\CMS\\Model\\SiteTree', 'pageWithSpecialChars');
+        $pageWithSpecialChars = $this->objFromFixture(SiteTree::class, 'pageWithSpecialChars');
         $pageWithSpecialChars->copyVersionToStage(Versioned::DRAFT, Versioned::LIVE);
 
-        $results = $sf->getResults(null, array('Search'=>'Brötchen'));
+        $results = $sf->getResults();
         $this->assertContains(
             $pageWithSpecialChars->ID,
             $results->column('ID'),
             'Published pages with umlauts in title are found'
         );
 
-        $results = $sf->getResults(null, array('Search'=>'Bäcker'));
+        // Check another word
+        $request = new HTTPRequest('GET', 'search', ['Search'=>'Bäcker']);
+        $this->mockController->setRequest($request);
+        $sf = new SearchForm($this->mockController);
+        $results = $sf->getResults();
         $this->assertContains(
             $pageWithSpecialChars->ID,
             $results->column('ID'),