Modernized deprecated PHPUnit assertion calls

Tests/DebugClassLoaderTest.php

@@ -128,10 +128,10 @@ class DebugClassLoaderTest extends TestCase
             // if an exception is thrown, the test passed
             $this->assertStringStartsWith(__FILE__, $exception->getFile());
             if (\PHP_VERSION_ID < 70000) {
-                $this->assertRegExp('/^Runtime Notice: Declaration/', $exception->getMessage());
+                $this->assertMatchesRegularExpression('/^Runtime Notice: Declaration/', $exception->getMessage());
                 $this->assertEquals(E_STRICT, $exception->getSeverity());
             } else {
-                $this->assertRegExp('/^Warning: Declaration/', $exception->getMessage());
+                $this->assertMatchesRegularExpression('/^Warning: Declaration/', $exception->getMessage());
                 $this->assertEquals(E_WARNING, $exception->getSeverity());
             }
         } finally {

Tests/ErrorHandlerTest.php

@@ -103,10 +103,10 @@ class ErrorHandlerTest extends TestCase
             // if an exception is thrown, the test passed
             if (\PHP_VERSION_ID < 80000) {
                 $this->assertEquals(E_NOTICE, $exception->getSeverity());
-                $this->assertRegExp('/^Notice: Undefined variable: (foo|bar)/', $exception->getMessage());
+                $this->assertMatchesRegularExpression('/^Notice: Undefined variable: (foo|bar)/', $exception->getMessage());
             } else {
                 $this->assertEquals(E_WARNING, $exception->getSeverity());
-                $this->assertRegExp('/^Warning: Undefined variable \$(foo|bar)/', $exception->getMessage());
+                $this->assertMatchesRegularExpression('/^Warning: Undefined variable \$(foo|bar)/', $exception->getMessage());
             }
             $this->assertEquals(__FILE__, $exception->getFile());
 

Tests/FatalErrorHandler/ClassNotFoundFatalErrorHandlerTest.php

@@ -65,7 +65,7 @@ class ClassNotFoundFatalErrorHandlerTest extends TestCase
         }
 
         $this->assertInstanceOf('Symfony\Component\Debug\Exception\ClassNotFoundException', $exception);
-        $this->assertRegExp($translatedMessage, $exception->getMessage());
+        $this->assertMatchesRegularExpression($translatedMessage, $exception->getMessage());
         $this->assertSame($error['type'], $exception->getSeverity());
         $this->assertSame($error['file'], $exception->getFile());
         $this->assertSame($error['line'], $exception->getLine());