diff --git a/tests/ConnectionTest.php b/tests/ConnectionTest.php
index 0ffb7d92cb1..d8bfd8f722d 100644
--- a/tests/ConnectionTest.php
+++ b/tests/ConnectionTest.php
@@ -745,7 +745,7 @@ public function testPlatformDetectionFetchedFromParameters(): void
 
         $driverConnectionMock = $this->createMock(ServerInfoAwareConnection::class);
 
-        $platformMock = $this->getMockForAbstractClass(AbstractPlatform::class);
+        $platformMock = $this->createMock(AbstractPlatform::class);
 
         $connection = new Connection(['serverVersion' => '8.0'], $driverMock);
 
@@ -767,7 +767,7 @@ public function testPlatformDetectionFetchedFromPrimaryReplicaParameters(): void
 
         $driverConnectionMock = $this->createMock(ServerInfoAwareConnection::class);
 
-        $platformMock = $this->getMockForAbstractClass(AbstractPlatform::class);
+        $platformMock = $this->createMock(AbstractPlatform::class);
 
         $connection = new Connection(['primary' => ['serverVersion' => '8.0']], $driverMock);
 
diff --git a/tests/Functional/Ticket/DBAL461Test.php b/tests/Functional/Ticket/DBAL461Test.php
index 817d6da1bb3..5513fadf593 100644
--- a/tests/Functional/Ticket/DBAL461Test.php
+++ b/tests/Functional/Ticket/DBAL461Test.php
@@ -15,7 +15,7 @@ class DBAL461Test extends TestCase
     public function testIssue(): void
     {
         $conn     = $this->createMock(Connection::class);
-        $platform = $this->getMockForAbstractClass(SQLServer2012Platform::class);
+        $platform = new SQLServer2012Platform();
         $platform->registerDoctrineTypeMapping('numeric', Types::DECIMAL);
 
         $schemaManager = new SQLServerSchemaManager($conn, $platform);
diff --git a/tests/Types/BaseDateTypeTestCase.php b/tests/Types/BaseDateTypeTestCase.php
index 00fb2a72f36..34eb7bb219d 100644
--- a/tests/Types/BaseDateTypeTestCase.php
+++ b/tests/Types/BaseDateTypeTestCase.php
@@ -24,7 +24,7 @@ abstract class BaseDateTypeTestCase extends TestCase
 
     protected function setUp(): void
     {
-        $this->platform        = $this->getMockForAbstractClass(AbstractPlatform::class);
+        $this->platform        = $this->createMock(AbstractPlatform::class);
         $this->currentTimezone = date_default_timezone_get();
 
         self::assertInstanceOf(Type::class, $this->type);
diff --git a/tests/Types/DateTest.php b/tests/Types/DateTest.php
index ad9a1942953..1f4bfd320f5 100644
--- a/tests/Types/DateTest.php
+++ b/tests/Types/DateTest.php
@@ -15,6 +15,9 @@ protected function setUp(): void
         $this->type = new DateType();
 
         parent::setUp();
+
+        $this->platform->method('getDateFormatString')
+            ->willReturn('Y-m-d');
     }
 
     public function testDateConvertsToPHPValue(): void
diff --git a/tests/Types/DateTimeTest.php b/tests/Types/DateTimeTest.php
index 3198daa947c..405fed64a58 100644
--- a/tests/Types/DateTimeTest.php
+++ b/tests/Types/DateTimeTest.php
@@ -13,13 +13,16 @@ protected function setUp(): void
         $this->type = new DateTimeType();
 
         parent::setUp();
+
+        $this->platform->method('getDateTimeFormatString')
+            ->willReturn('Y-m-d H:i:s');
     }
 
     public function testDateTimeConvertsToDatabaseValue(): void
     {
         $date = new DateTime('1985-09-01 10:10:10');
 
-        $expected = $date->format($this->platform->getDateTimeTzFormatString());
+        $expected = $date->format($this->platform->getDateTimeFormatString());
         $actual   = $this->type->convertToDatabaseValue($date, $this->platform);
 
         self::assertEquals($expected, $actual);
diff --git a/tests/Types/DateTimeTzTest.php b/tests/Types/DateTimeTzTest.php
index 04c386edc5d..0c84e3174a3 100644
--- a/tests/Types/DateTimeTzTest.php
+++ b/tests/Types/DateTimeTzTest.php
@@ -13,6 +13,9 @@ protected function setUp(): void
         $this->type = new DateTimeTzType();
 
         parent::setUp();
+
+        $this->platform->method('getDateTimeTzFormatString')
+            ->willReturn('Y-m-d H:i:s');
     }
 
     public function testDateTimeConvertsToDatabaseValue(): void
diff --git a/tests/Types/TimeTest.php b/tests/Types/TimeTest.php
index 2fe2e5a8a34..9286473726f 100644
--- a/tests/Types/TimeTest.php
+++ b/tests/Types/TimeTest.php
@@ -13,6 +13,9 @@ protected function setUp(): void
         $this->type = new TimeType();
 
         parent::setUp();
+
+        $this->platform->method('getTimeFormatString')
+            ->willReturn('H:i:s');
     }
 
     public function testTimeConvertsToPHPValue(): void
diff --git a/tests/Types/VarDateTimeTest.php b/tests/Types/VarDateTimeTest.php
index 513bf0b24e8..de2e665f332 100644
--- a/tests/Types/VarDateTimeTest.php
+++ b/tests/Types/VarDateTimeTest.php
@@ -18,15 +18,18 @@ class VarDateTimeTest extends TestCase
 
     protected function setUp(): void
     {
-        $this->platform = $this->getMockForAbstractClass(AbstractPlatform::class);
+        $this->platform = $this->createMock(AbstractPlatform::class);
         $this->type     = new VarDateTimeType();
+
+        $this->platform->method('getDateTimeFormatString')
+            ->willReturn('Y-m-d H:i:s');
     }
 
     public function testDateTimeConvertsToDatabaseValue(): void
     {
         $date = new DateTime('1985-09-01 10:10:10');
 
-        $expected = $date->format($this->platform->getDateTimeTzFormatString());
+        $expected = $date->format($this->platform->getDateTimeFormatString());
         $actual   = $this->type->convertToDatabaseValue($date, $this->platform);
 
         self::assertEquals($expected, $actual);