diff --git a/rules-tests/CodeQuality/Rector/MethodCall/WithCallbackIdenticalToStandaloneAssertsRector/Fixture/on_static_closure.php.inc b/rules-tests/CodeQuality/Rector/MethodCall/WithCallbackIdenticalToStandaloneAssertsRector/Fixture/on_static_closure.php.inc
new file mode 100644
index 00000000..b6cc6177
--- /dev/null
+++ b/rules-tests/CodeQuality/Rector/MethodCall/WithCallbackIdenticalToStandaloneAssertsRector/Fixture/on_static_closure.php.inc
@@ -0,0 +1,47 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\PHPUnit\Tests\CodeQuality\Rector\MethodCall\WithCallbackIdenticalToStandaloneAssertsRector\Fixture;
+
+use PHPUnit\Framework\TestCase;
+
+final class OnStaticClosure extends TestCase
+{
+    public function test()
+    {
+        $this->createMock('SomeClass')
+            ->expects($this->once())
+            ->method('someMethod')
+            ->with($this->callback(static function (array $args): bool {
+               return count($args) === 2 && $args[0] === 'correct';
+            }));
+    }
+}
+
+?>
+-----
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\PHPUnit\Tests\CodeQuality\Rector\MethodCall\WithCallbackIdenticalToStandaloneAssertsRector\Fixture;
+
+use PHPUnit\Framework\TestCase;
+
+final class OnStaticClosure extends TestCase
+{
+    public function test()
+    {
+        $this->createMock('SomeClass')
+            ->expects($this->once())
+            ->method('someMethod')
+            ->with($this->callback(static function (array $args): bool {
+                self::assertCount(2, $args);
+                self::assertSame('correct', $args[0]);
+                return true;
+            }));
+    }
+}
+
+?>
diff --git a/rules/CodeQuality/NodeFactory/FromBinaryAndAssertExpressionsFactory.php b/rules/CodeQuality/NodeFactory/FromBinaryAndAssertExpressionsFactory.php
index 9b25d553..49354c12 100644
--- a/rules/CodeQuality/NodeFactory/FromBinaryAndAssertExpressionsFactory.php
+++ b/rules/CodeQuality/NodeFactory/FromBinaryAndAssertExpressionsFactory.php
@@ -13,6 +13,7 @@
 use PhpParser\Node\Expr\Instanceof_;
 use PhpParser\Node\Expr\Isset_;
 use PhpParser\Node\Expr\MethodCall;
+use PhpParser\Node\Expr\StaticCall;
 use PhpParser\Node\Name;
 use PhpParser\Node\Name\FullyQualified;
 use PhpParser\Node\Scalar\Int_;
@@ -33,14 +34,14 @@ public function __construct(
      * @param Expr[] $exprs
      * @return Stmt[]
      */
-    public function create(array $exprs): array
+    public function create(array $exprs, bool $isStaticClosure = false): array
     {
         $assertMethodCalls = [];
 
         foreach ($exprs as $expr) {
             // implicit bool compare
             if ($expr instanceof MethodCall) {
-                $assertMethodCalls[] = $this->nodeFactory->createMethodCall('this', 'assertTrue', [$expr]);
+                $assertMethodCalls[] = $this->createAssertMethodCall($isStaticClosure, 'assertTrue', [$expr]);
 
                 continue;
             }
@@ -51,8 +52,8 @@ public function create(array $exprs): array
                 $dimExpr = $expr->getArgs()[0]
                     ->value;
 
-                $assertMethodCalls[] = $this->nodeFactory->createMethodCall(
-                    'this',
+                $assertMethodCalls[] = $this->createAssertMethodCall(
+                    $isStaticClosure,
                     'assertArrayHasKey',
                     [$dimExpr, $variableExpr]
                 );
@@ -62,9 +63,9 @@ public function create(array $exprs): array
 
             if ($expr instanceof Isset_) {
                 foreach ($expr->vars as $issetVariable) {
-                    if ($issetVariable instanceof ArrayDimFetch) {
-                        $assertMethodCalls[] = $this->nodeFactory->createMethodCall(
-                            'this',
+                    if ($issetVariable instanceof ArrayDimFetch && $issetVariable->dim instanceof Expr) {
+                        $assertMethodCalls[] = $this->createAssertMethodCall(
+                            $isStaticClosure,
                             'assertArrayHasKey',
                             [$issetVariable->dim, $issetVariable->var]
                         );
@@ -86,8 +87,8 @@ public function create(array $exprs): array
                     $classNameExpr = $expr->class;
                 }
 
-                $assertMethodCalls[] = $this->nodeFactory->createMethodCall(
-                    'this',
+                $assertMethodCalls[] = $this->createAssertMethodCall(
+                    $isStaticClosure,
                     'assertInstanceOf',
                     [$classNameExpr, $expr->expr]
                 );
@@ -102,8 +103,8 @@ public function create(array $exprs): array
                             ->value;
 
                         // create assertCount()
-                        $assertMethodCalls[] = $this->nodeFactory->createMethodCall(
-                            'this',
+                        $assertMethodCalls[] = $this->createAssertMethodCall(
+                            $isStaticClosure,
                             'assertCount',
                             [$expr->right, $countedExpr]
                         );
@@ -116,8 +117,8 @@ public function create(array $exprs): array
                 }
 
                 // create assertSame()
-                $assertMethodCalls[] = $this->nodeFactory->createMethodCall(
-                    'this',
+                $assertMethodCalls[] = $this->createAssertMethodCall(
+                    $isStaticClosure,
                     $expr instanceof Identical ? 'assertSame' : 'assertEquals',
                     [$expr->right, $expr->left]
                 );
@@ -141,4 +142,16 @@ public function create(array $exprs): array
 
         return $stmts;
     }
+
+    /**
+     * @param Expr[] $args
+     */
+    private function createAssertMethodCall(bool $isStaticClosure, string $method, array $args): MethodCall|StaticCall
+    {
+        if ($isStaticClosure) {
+            return new StaticCall(new Name('self'), $method, $this->nodeFactory->createArgs($args));
+        }
+
+        return $this->nodeFactory->createMethodCall('this', $method, $args);
+    }
 }
diff --git a/rules/CodeQuality/Rector/ClassMethod/ReplaceTestAnnotationWithPrefixedFunctionRector.php b/rules/CodeQuality/Rector/ClassMethod/ReplaceTestAnnotationWithPrefixedFunctionRector.php
index 02b5d843..5b9e7ae0 100644
--- a/rules/CodeQuality/Rector/ClassMethod/ReplaceTestAnnotationWithPrefixedFunctionRector.php
+++ b/rules/CodeQuality/Rector/ClassMethod/ReplaceTestAnnotationWithPrefixedFunctionRector.php
@@ -88,7 +88,7 @@ public function refactor(Node $node): ?Node
 
         $hasAnnotation = false;
         foreach(NewLineSplitter::split($docComment->getText()) as $row) {
-            if (in_array(trim($row), ['*@test', '* @test'])) {
+            if (in_array(trim($row), ['*@test', '* @test'], true)) {
                 $hasAnnotation = true;
                 break;
             }
diff --git a/rules/CodeQuality/Rector/MethodCall/WithCallbackIdenticalToStandaloneAssertsRector.php b/rules/CodeQuality/Rector/MethodCall/WithCallbackIdenticalToStandaloneAssertsRector.php
index a7766975..dffafec4 100644
--- a/rules/CodeQuality/Rector/MethodCall/WithCallbackIdenticalToStandaloneAssertsRector.php
+++ b/rules/CodeQuality/Rector/MethodCall/WithCallbackIdenticalToStandaloneAssertsRector.php
@@ -125,7 +125,10 @@ public function refactor(Node $node): MethodCall|null
                 continue;
             }
 
-            $assertExprStmts = $this->fromBinaryAndAssertExpressionsFactory->create($joinedExprs);
+            $innerFunctionLike = $argAndFunctionLike->getFunctionLike();
+            $isStaticClosure = $innerFunctionLike instanceof Closure && $innerFunctionLike->static;
+
+            $assertExprStmts = $this->fromBinaryAndAssertExpressionsFactory->create($joinedExprs, $isStaticClosure);
             if ($assertExprStmts === []) {
                 continue;
             }
@@ -134,7 +137,6 @@ public function refactor(Node $node): MethodCall|null
 
             // last si return true;
             $assertExprStmts[] = new Return_($this->nodeFactory->createTrue());
-            $innerFunctionLike = $argAndFunctionLike->getFunctionLike();
 
             if ($innerFunctionLike instanceof Closure) {
                 $innerFunctionLike->stmts = array_merge($nonReturnCallbackStmts, $assertExprStmts);