Ignore case sensitivity when checking if an extension is loaded

src/Platform/TargetPhp/PhpBinaryPath.php

@@ -118,7 +118,7 @@ public function extensionPath(): string
 
     public function assertExtensionIsLoadedInRuntime(ExtensionName $extension, OutputInterface|null $output = null): void
     {
-        if (! in_array($extension->name(), array_keys($this->extensions()))) {
+        if (! in_array(strtolower($extension->name()), array_map('strtolower', array_keys($this->extensions())))) {
             throw Exception\ExtensionIsNotLoaded::fromExpectedExtension(
                 $this,
                 $extension,

test/unit/Platform/TargetPhp/PhpBinaryPathTest.php

@@ -287,6 +287,24 @@ public function testAssertExtensionIsLoaded(): void
         );
     }
 
+    public function testAssertDifferentCasedExtensionIsLoaded(): void
+    {
+        $php              = PhpBinaryPath::fromCurrentProcess();
+        $loadedExtensions = $php->extensions();
+
+        if (! count($loadedExtensions) || ! array_key_exists('Core', $loadedExtensions)) {
+            self::fail('Core extension is not loaded, this is quite unexpected...');
+        }
+
+        $output = new BufferedOutput(BufferedOutput::VERBOSITY_VERBOSE);
+        $php->assertExtensionIsLoadedInRuntime(ExtensionName::normaliseFromString('CORE'), $output);
+
+        self::assertStringContainsString(
+            'Successfully asserted that extension CORE is loaded in runtime.',
+            $output->fetch(),
+        );
+    }
+
     public function testAssertExtensionFailsWhenNotLoaded(): void
     {
         $php = PhpBinaryPath::fromCurrentProcess();