diff --git a/tests/phpunit/InputCheck/MathoidCheckerTest.php b/tests/phpunit/InputCheck/MathoidCheckerTest.php
index e027f527e..ff8f0dff5 100644
--- a/tests/phpunit/InputCheck/MathoidCheckerTest.php
+++ b/tests/phpunit/InputCheck/MathoidCheckerTest.php
@@ -6,11 +6,11 @@ use HashBagOStuff;
 use MediaWiki\Extension\Math\MathMathML;
 use MediaWiki\Http\HttpRequestFactory;
 use MediaWiki\MediaWikiServices;
-use MediaWikiTestCase;
+use MediaWikiIntegrationTestCase;
 use MockHttpTrait;
 use WANObjectCache;
 
-class MathoidCheckerTest extends MediaWikiTestCase {
+class MathoidCheckerTest extends MediaWikiIntegrationTestCase {
 	use MockHttpTrait;
 
 	private const SAMPLE_KEY = 'global:MediaWiki\Extension\Math\InputCheck\MathoidChecker:' .
diff --git a/tests/phpunit/InputCheck/RestbaseCheckerTest.php b/tests/phpunit/InputCheck/RestbaseCheckerTest.php
index 99206ea2f..805cc72b6 100644
--- a/tests/phpunit/InputCheck/RestbaseCheckerTest.php
+++ b/tests/phpunit/InputCheck/RestbaseCheckerTest.php
@@ -10,7 +10,7 @@ use MediaWiki\Extension\Math\Tests\MathMockHttpTrait;
  *
  * @covers \MediaWiki\Extension\Math\InputCheck\RestbaseChecker
  */
-class RestbaseCheckerTest extends MediaWikiTestCase {
+class RestbaseCheckerTest extends MediaWikiIntegrationTestCase {
 	use MathMockHttpTrait;
 
 	public function testValid() {
diff --git a/tests/phpunit/MathDataUpdaterTest.php b/tests/phpunit/MathDataUpdaterTest.php
index afc16bf64..7a31d139a 100644
--- a/tests/phpunit/MathDataUpdaterTest.php
+++ b/tests/phpunit/MathDataUpdaterTest.php
@@ -13,7 +13,7 @@ use Wikibase\DataModel\Statement\Statement;
  *
  * @license GPL-2.0-or-later
  */
-class MathDataUpdaterTest extends MediaWikiTestCase {
+class MathDataUpdaterTest extends MediaWikiIntegrationTestCase {
 
 	/**
 	 * @var NumericPropertyId
diff --git a/tests/phpunit/MathDatabaseTest.php b/tests/phpunit/MathDatabaseTest.php
index 2c3299594..963317be8 100644
--- a/tests/phpunit/MathDatabaseTest.php
+++ b/tests/phpunit/MathDatabaseTest.php
@@ -14,7 +14,7 @@ use MediaWiki\Extension\Math\MathRenderer;
  *
  * @license GPL-2.0-or-later
  */
-class MathDatabaseTest extends MediaWikiTestCase {
+class MathDatabaseTest extends MediaWikiIntegrationTestCase {
 	/**
 	 * @var MathRenderer
 	 */
diff --git a/tests/phpunit/MathFormatterTest.php b/tests/phpunit/MathFormatterTest.php
index 6225a05cb..1833aec26 100644
--- a/tests/phpunit/MathFormatterTest.php
+++ b/tests/phpunit/MathFormatterTest.php
@@ -15,7 +15,7 @@ use Wikibase\Lib\Formatters\SnakFormatter;
  *
  * @license GPL-2.0-or-later
  */
-class MathFormatterTest extends MediaWikiTestCase {
+class MathFormatterTest extends MediaWikiIntegrationTestCase {
 	use MathMockHttpTrait;
 
 	private const SOME_TEX = '\sin x^2';
diff --git a/tests/phpunit/MathInputCheckTest.php b/tests/phpunit/MathInputCheckTest.php
index c3ded40c4..4b804e89c 100644
--- a/tests/phpunit/MathInputCheckTest.php
+++ b/tests/phpunit/MathInputCheckTest.php
@@ -9,7 +9,7 @@ use MediaWiki\Extension\Math\InputCheck\BaseChecker;
  *
  * @license GPL-2.0-or-later
  */
-class MathInputCheckTest extends MediaWikiTestCase {
+class MathInputCheckTest extends MediaWikiIntegrationTestCase {
 
 	public function testAbstractClass() {
 		$InputCheck = $this->getMockForAbstractClass( BaseChecker::class );
diff --git a/tests/phpunit/MathLaTeXMLDatabaseTest.php b/tests/phpunit/MathLaTeXMLDatabaseTest.php
index 42077035b..06540a76a 100644
--- a/tests/phpunit/MathLaTeXMLDatabaseTest.php
+++ b/tests/phpunit/MathLaTeXMLDatabaseTest.php
@@ -11,7 +11,7 @@ use MediaWiki\Extension\Math\MathLaTeXML;
  *
  * @license GPL-2.0-or-later
  */
-class MathLaTeXMLDatabaseTest extends MediaWikiTestCase {
+class MathLaTeXMLDatabaseTest extends MediaWikiIntegrationTestCase {
 	public $renderer;
 	private const SOME_TEX = "a+b";
 	private const SOME_HTML = "a<sub>b</sub>";
diff --git a/tests/phpunit/MathLaTeXMLTest.php b/tests/phpunit/MathLaTeXMLTest.php
index 03cba932e..b63b18cfc 100644
--- a/tests/phpunit/MathLaTeXMLTest.php
+++ b/tests/phpunit/MathLaTeXMLTest.php
@@ -11,7 +11,7 @@ use MediaWiki\Extension\Math\MathLaTeXML;
  *
  * @license GPL-2.0-or-later
  */
-class MathLaTeXMLTest extends MediaWikiTestCase {
+class MathLaTeXMLTest extends MediaWikiIntegrationTestCase {
 
 	/**
 	 * Tests the serialization of the LaTeXML settings
diff --git a/tests/phpunit/MathMLRdfBuilderTest.php b/tests/phpunit/MathMLRdfBuilderTest.php
index 701326f93..e66b57a9d 100644
--- a/tests/phpunit/MathMLRdfBuilderTest.php
+++ b/tests/phpunit/MathMLRdfBuilderTest.php
@@ -14,7 +14,7 @@ use Wikimedia\Purtle\NTriplesRdfWriter;
  * @covers \MediaWiki\Extension\Math\MathMLRdfBuilder
  * @author Moritz Schubotz (physikerwelt)
  */
-class MathMLRdfBuilderTest extends MediaWikiTestCase {
+class MathMLRdfBuilderTest extends MediaWikiIntegrationTestCase {
 	use MathMockHttpTrait;
 
 	private const ACME_PREFIX_URL = 'http://acme/';
diff --git a/tests/phpunit/MathMathMLTest.php b/tests/phpunit/MathMathMLTest.php
index d2bf1ddbc..5b63bf6cc 100644
--- a/tests/phpunit/MathMathMLTest.php
+++ b/tests/phpunit/MathMathMLTest.php
@@ -14,7 +14,7 @@ use Wikimedia\TestingAccessWrapper;
  *
  * @license GPL-2.0-or-later
  */
-class MathMathMLTest extends MediaWikiTestCase {
+class MathMathMLTest extends MediaWikiIntegrationTestCase {
 	use MathMockHttpTrait;
 
 	protected function setUp(): void {
diff --git a/tests/phpunit/MathPngTest.php b/tests/phpunit/MathPngTest.php
index e41bdc12a..1084bed2d 100644
--- a/tests/phpunit/MathPngTest.php
+++ b/tests/phpunit/MathPngTest.php
@@ -8,7 +8,7 @@ use MediaWiki\Extension\Math\MathPng;
  *
  * @license GPL-2.0-or-later
  */
-class MathPngTest extends MediaWikiTestCase {
+class MathPngTest extends MediaWikiIntegrationTestCase {
 
 	/** @var string The fallback image HTML tag */
 	private const TEST_DUMMY = '<img src="test.png" />';
diff --git a/tests/phpunit/MathRendererTest.php b/tests/phpunit/MathRendererTest.php
index 7fdc47b3d..f43fe8ebe 100644
--- a/tests/phpunit/MathRendererTest.php
+++ b/tests/phpunit/MathRendererTest.php
@@ -12,7 +12,7 @@ use MediaWiki\Extension\Math\Tests\MathMockHttpTrait;
  *
  * @license GPL-2.0-or-later
  */
-class MathRendererTest extends MediaWikiTestCase {
+class MathRendererTest extends MediaWikiIntegrationTestCase {
 	use MathMockHttpTrait;
 
 	private const SOME_TEX = "a+b";
diff --git a/tests/phpunit/MathRestbaseInterfaceTest.php b/tests/phpunit/MathRestbaseInterfaceTest.php
index dc9f7c60b..875d06e1b 100644
--- a/tests/phpunit/MathRestbaseInterfaceTest.php
+++ b/tests/phpunit/MathRestbaseInterfaceTest.php
@@ -14,7 +14,7 @@ use MediaWiki\Extension\Math\Tests\MathMockHttpTrait;
  *
  * @license GPL-2.0-or-later
  */
-class MathRestbaseInterfaceTest extends MediaWikiTestCase {
+class MathRestbaseInterfaceTest extends MediaWikiIntegrationTestCase {
 	use MathMockHttpTrait;
 
 	public function testSuccess() {
diff --git a/tests/phpunit/MathSourceTest.php b/tests/phpunit/MathSourceTest.php
index 9a273ec3e..3b8ec4d1d 100644
--- a/tests/phpunit/MathSourceTest.php
+++ b/tests/phpunit/MathSourceTest.php
@@ -11,7 +11,7 @@ use MediaWiki\Extension\Math\MathSource;
  *
  * @license GPL-2.0-or-later
  */
-class MathSourceTest extends MediaWikiTestCase {
+class MathSourceTest extends MediaWikiIntegrationTestCase {
 
 	/**
 	 * Checks the basic functionality
diff --git a/tests/phpunit/MathValidatorTest.php b/tests/phpunit/MathValidatorTest.php
index 4aa6277c6..ad15383da 100644
--- a/tests/phpunit/MathValidatorTest.php
+++ b/tests/phpunit/MathValidatorTest.php
@@ -11,7 +11,7 @@ use MediaWiki\Extension\Math\MathValidator;
  *
  * @license GPL-2.0-or-later
  */
-class MathValidatorTest extends MediaWikiTestCase {
+class MathValidatorTest extends MediaWikiIntegrationTestCase {
 	use MockHttpTrait;
 
 	private const VADLID_TEX = "\sin x";
diff --git a/tests/phpunit/MathoidCliTest.php b/tests/phpunit/MathoidCliTest.php
index b0f8b8d15..e94374201 100644
--- a/tests/phpunit/MathoidCliTest.php
+++ b/tests/phpunit/MathoidCliTest.php
@@ -9,7 +9,7 @@ use MediaWiki\Extension\Math\MathMathMLCli;
  *
  * @license GPL-2.0-or-later
  */
-class MathoidCliTest extends MediaWikiTestCase {
+class MathoidCliTest extends MediaWikiIntegrationTestCase {
 	private $goodInput = '\sin\left(\frac12x\right)';
 	private $badInput = '\newcommand{\text{do evil things}}';
 	protected static $hasMathoidCli;