diff --git a/README.md b/README.md
index b78f0ff..d0b0c90 100644
--- a/README.md
+++ b/README.md
@@ -29,7 +29,7 @@ The first time we see the IP address will have to make an HTTP call, but subsequ
 
 ```php
 $ipAddress = $_SERVER["REMOTE_ADDR"];
-$fileCache = new Gt\FileCache\Cache("/tmp/ip-address-geolocation");
+$fileCache = new GT\FileCache\Cache("/tmp/ip-address-geolocation");
 
 // This function uses file_get_contents to contact the remote server
 // at ipinfo.io, a costly operation. We will pass the lookup function
@@ -44,7 +44,7 @@ $location = $fileCache->get("lat-lon", $lookup);
 echo "Your location is: $location";
 ```
 
-If generating a fresh value fails, throw `Gt\FileCache\CacheValueGenerationException`
+If generating a fresh value fails, throw `GT\FileCache\CacheValueGenerationException`
 from the callback. The cache will ignore that failure and skip writing a replacement
 value, which leaves `null` available as a legitimate cached value.
 
diff --git a/composer.json b/composer.json
index b134d60..891e98f 100644
--- a/composer.json
+++ b/composer.json
@@ -40,13 +40,14 @@
 
 	"autoload": {
 		"psr-4": {
+			"GT\\FileCache\\": "./src",
 			"Gt\\FileCache\\": "./src"
 		}
 	},
 
 	"autoload-dev": {
 		"psr-4": {
-			"Gt\\FileCache\\Test\\": "./test/phpunit"
+			"GT\\FileCache\\Test\\": "./test/phpunit"
 		}
 	},
 
diff --git a/composer.lock b/composer.lock
index 1a769e7..8b85098 100644
--- a/composer.lock
+++ b/composer.lock
@@ -589,11 +589,11 @@
         },
         {
             "name": "phpstan/phpstan",
-            "version": "2.1.40",
+            "version": "2.1.50",
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/9b2c7aeb83a75d8680ea5e7c9b7fca88052b766b",
-                "reference": "9b2c7aeb83a75d8680ea5e7c9b7fca88052b766b",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/d452086fb4cf648c6b2d8cf3b639351f79e4f3e2",
+                "reference": "d452086fb4cf648c6b2d8cf3b639351f79e4f3e2",
                 "shasum": ""
             },
             "require": {
@@ -638,7 +638,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2026-02-23T15:04:35+00:00"
+            "time": "2026-04-17T13:10:32+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",
@@ -963,16 +963,16 @@
         },
         {
             "name": "phpunit/phpunit",
-            "version": "10.5.62",
+            "version": "10.5.63",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "3f7dd5066ebde5809296a81f0b19e8b00e5aab49"
+                "reference": "33198268dad71e926626b618f3ec3966661e4d90"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/3f7dd5066ebde5809296a81f0b19e8b00e5aab49",
-                "reference": "3f7dd5066ebde5809296a81f0b19e8b00e5aab49",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/33198268dad71e926626b618f3ec3966661e4d90",
+                "reference": "33198268dad71e926626b618f3ec3966661e4d90",
                 "shasum": ""
             },
             "require": {
@@ -1044,7 +1044,7 @@
             "support": {
                 "issues": "https://github.com/sebastianbergmann/phpunit/issues",
                 "security": "https://github.com/sebastianbergmann/phpunit/security/policy",
-                "source": "https://github.com/sebastianbergmann/phpunit/tree/10.5.62"
+                "source": "https://github.com/sebastianbergmann/phpunit/tree/10.5.63"
             },
             "funding": [
                 {
@@ -1068,7 +1068,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2026-01-27T05:32:38+00:00"
+            "time": "2026-01-27T05:48:37+00:00"
         },
         {
             "name": "psr/container",
@@ -2207,16 +2207,16 @@
         },
         {
             "name": "symfony/config",
-            "version": "v6.4.14",
+            "version": "v6.4.34",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/config.git",
-                "reference": "4e55e7e4ffddd343671ea972216d4509f46c22ef"
+                "reference": "ce9cb0c0d281aaf188b802d4968e42bfb60701e9"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/config/zipball/4e55e7e4ffddd343671ea972216d4509f46c22ef",
-                "reference": "4e55e7e4ffddd343671ea972216d4509f46c22ef",
+                "url": "https://api.github.com/repos/symfony/config/zipball/ce9cb0c0d281aaf188b802d4968e42bfb60701e9",
+                "reference": "ce9cb0c0d281aaf188b802d4968e42bfb60701e9",
                 "shasum": ""
             },
             "require": {
@@ -2262,7 +2262,7 @@
             "description": "Helps you find, load, combine, autofill and validate configuration values of any kind",
             "homepage": "https://symfony.com",
             "support": {
-                "source": "https://github.com/symfony/config/tree/v6.4.14"
+                "source": "https://github.com/symfony/config/tree/v6.4.34"
             },
             "funding": [
                 {
@@ -2273,25 +2273,29 @@
                     "url": "https://github.com/fabpot",
                     "type": "github"
                 },
+                {
+                    "url": "https://github.com/nicolas-grekas",
+                    "type": "github"
+                },
                 {
                     "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
                     "type": "tidelift"
                 }
             ],
-            "time": "2024-11-04T11:33:53+00:00"
+            "time": "2026-02-24T17:34:50+00:00"
         },
         {
             "name": "symfony/dependency-injection",
-            "version": "v6.4.19",
+            "version": "v6.4.36",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/dependency-injection.git",
-                "reference": "b343c3b2f1539fe41331657b37d5c96c1d1ea842"
+                "reference": "cd7881a6dc84b780411199cd0584e1a53a3b9ba7"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/dependency-injection/zipball/b343c3b2f1539fe41331657b37d5c96c1d1ea842",
-                "reference": "b343c3b2f1539fe41331657b37d5c96c1d1ea842",
+                "url": "https://api.github.com/repos/symfony/dependency-injection/zipball/cd7881a6dc84b780411199cd0584e1a53a3b9ba7",
+                "reference": "cd7881a6dc84b780411199cd0584e1a53a3b9ba7",
                 "shasum": ""
             },
             "require": {
@@ -2299,7 +2303,7 @@
                 "psr/container": "^1.1|^2.0",
                 "symfony/deprecation-contracts": "^2.5|^3",
                 "symfony/service-contracts": "^2.5|^3.0",
-                "symfony/var-exporter": "^6.2.10|^7.0"
+                "symfony/var-exporter": "^6.4.20|^7.2.5"
             },
             "conflict": {
                 "ext-psr": "<1.1|>=2",
@@ -2343,7 +2347,7 @@
             "description": "Allows you to standardize and centralize the way objects are constructed in your application",
             "homepage": "https://symfony.com",
             "support": {
-                "source": "https://github.com/symfony/dependency-injection/tree/v6.4.19"
+                "source": "https://github.com/symfony/dependency-injection/tree/v6.4.36"
             },
             "funding": [
                 {
@@ -2354,25 +2358,29 @@
                     "url": "https://github.com/fabpot",
                     "type": "github"
                 },
+                {
+                    "url": "https://github.com/nicolas-grekas",
+                    "type": "github"
+                },
                 {
                     "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
                     "type": "tidelift"
                 }
             ],
-            "time": "2025-02-20T10:02:49+00:00"
+            "time": "2026-03-30T16:39:36+00:00"
         },
         {
             "name": "symfony/deprecation-contracts",
-            "version": "v3.5.1",
+            "version": "v3.6.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/deprecation-contracts.git",
-                "reference": "74c71c939a79f7d5bf3c1ce9f5ea37ba0114c6f6"
+                "reference": "63afe740e99a13ba87ec199bb07bbdee937a5b62"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/deprecation-contracts/zipball/74c71c939a79f7d5bf3c1ce9f5ea37ba0114c6f6",
-                "reference": "74c71c939a79f7d5bf3c1ce9f5ea37ba0114c6f6",
+                "url": "https://api.github.com/repos/symfony/deprecation-contracts/zipball/63afe740e99a13ba87ec199bb07bbdee937a5b62",
+                "reference": "63afe740e99a13ba87ec199bb07bbdee937a5b62",
                 "shasum": ""
             },
             "require": {
@@ -2385,7 +2393,7 @@
                     "name": "symfony/contracts"
                 },
                 "branch-alias": {
-                    "dev-main": "3.5-dev"
+                    "dev-main": "3.6-dev"
                 }
             },
             "autoload": {
@@ -2410,7 +2418,7 @@
             "description": "A generic function and convention to trigger deprecation notices",
             "homepage": "https://symfony.com",
             "support": {
-                "source": "https://github.com/symfony/deprecation-contracts/tree/v3.5.1"
+                "source": "https://github.com/symfony/deprecation-contracts/tree/v3.6.0"
             },
             "funding": [
                 {
@@ -2426,20 +2434,20 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2024-09-25T14:20:29+00:00"
+            "time": "2024-09-25T14:21:43+00:00"
         },
         {
             "name": "symfony/filesystem",
-            "version": "v6.4.13",
+            "version": "v6.4.34",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/filesystem.git",
-                "reference": "4856c9cf585d5a0313d8d35afd681a526f038dd3"
+                "reference": "01ffe0411b842f93c571e5c391f289c3fdd498c3"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/filesystem/zipball/4856c9cf585d5a0313d8d35afd681a526f038dd3",
-                "reference": "4856c9cf585d5a0313d8d35afd681a526f038dd3",
+                "url": "https://api.github.com/repos/symfony/filesystem/zipball/01ffe0411b842f93c571e5c391f289c3fdd498c3",
+                "reference": "01ffe0411b842f93c571e5c391f289c3fdd498c3",
                 "shasum": ""
             },
             "require": {
@@ -2476,7 +2484,7 @@
             "description": "Provides basic utilities for the filesystem",
             "homepage": "https://symfony.com",
             "support": {
-                "source": "https://github.com/symfony/filesystem/tree/v6.4.13"
+                "source": "https://github.com/symfony/filesystem/tree/v6.4.34"
             },
             "funding": [
                 {
@@ -2487,25 +2495,29 @@
                     "url": "https://github.com/fabpot",
                     "type": "github"
                 },
+                {
+                    "url": "https://github.com/nicolas-grekas",
+                    "type": "github"
+                },
                 {
                     "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
                     "type": "tidelift"
                 }
             ],
-            "time": "2024-10-25T15:07:50+00:00"
+            "time": "2026-02-24T17:51:06+00:00"
         },
         {
             "name": "symfony/polyfill-ctype",
-            "version": "v1.31.0",
+            "version": "v1.36.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/polyfill-ctype.git",
-                "reference": "a3cc8b044a6ea513310cbd48ef7333b384945638"
+                "reference": "141046a8f9477948ff284fa65be2095baafb94f2"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/polyfill-ctype/zipball/a3cc8b044a6ea513310cbd48ef7333b384945638",
-                "reference": "a3cc8b044a6ea513310cbd48ef7333b384945638",
+                "url": "https://api.github.com/repos/symfony/polyfill-ctype/zipball/141046a8f9477948ff284fa65be2095baafb94f2",
+                "reference": "141046a8f9477948ff284fa65be2095baafb94f2",
                 "shasum": ""
             },
             "require": {
@@ -2555,7 +2567,7 @@
                 "portable"
             ],
             "support": {
-                "source": "https://github.com/symfony/polyfill-ctype/tree/v1.31.0"
+                "source": "https://github.com/symfony/polyfill-ctype/tree/v1.36.0"
             },
             "funding": [
                 {
@@ -2566,28 +2578,33 @@
                     "url": "https://github.com/fabpot",
                     "type": "github"
                 },
+                {
+                    "url": "https://github.com/nicolas-grekas",
+                    "type": "github"
+                },
                 {
                     "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
                     "type": "tidelift"
                 }
             ],
-            "time": "2024-09-09T11:45:10+00:00"
+            "time": "2026-04-10T16:19:22+00:00"
         },
         {
             "name": "symfony/polyfill-mbstring",
-            "version": "v1.31.0",
+            "version": "v1.36.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/polyfill-mbstring.git",
-                "reference": "85181ba99b2345b0ef10ce42ecac37612d9fd341"
+                "reference": "6a21eb99c6973357967f6ce3708cd55a6bec6315"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/polyfill-mbstring/zipball/85181ba99b2345b0ef10ce42ecac37612d9fd341",
-                "reference": "85181ba99b2345b0ef10ce42ecac37612d9fd341",
+                "url": "https://api.github.com/repos/symfony/polyfill-mbstring/zipball/6a21eb99c6973357967f6ce3708cd55a6bec6315",
+                "reference": "6a21eb99c6973357967f6ce3708cd55a6bec6315",
                 "shasum": ""
             },
             "require": {
+                "ext-iconv": "*",
                 "php": ">=7.2"
             },
             "provide": {
@@ -2635,7 +2652,7 @@
                 "shim"
             ],
             "support": {
-                "source": "https://github.com/symfony/polyfill-mbstring/tree/v1.31.0"
+                "source": "https://github.com/symfony/polyfill-mbstring/tree/v1.36.0"
             },
             "funding": [
                 {
@@ -2646,25 +2663,29 @@
                     "url": "https://github.com/fabpot",
                     "type": "github"
                 },
+                {
+                    "url": "https://github.com/nicolas-grekas",
+                    "type": "github"
+                },
                 {
                     "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
                     "type": "tidelift"
                 }
             ],
-            "time": "2024-09-09T11:45:10+00:00"
+            "time": "2026-04-10T17:25:58+00:00"
         },
         {
             "name": "symfony/service-contracts",
-            "version": "v3.5.1",
+            "version": "v3.6.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/service-contracts.git",
-                "reference": "e53260aabf78fb3d63f8d79d69ece59f80d5eda0"
+                "reference": "45112560a3ba2d715666a509a0bc9521d10b6c43"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/service-contracts/zipball/e53260aabf78fb3d63f8d79d69ece59f80d5eda0",
-                "reference": "e53260aabf78fb3d63f8d79d69ece59f80d5eda0",
+                "url": "https://api.github.com/repos/symfony/service-contracts/zipball/45112560a3ba2d715666a509a0bc9521d10b6c43",
+                "reference": "45112560a3ba2d715666a509a0bc9521d10b6c43",
                 "shasum": ""
             },
             "require": {
@@ -2682,7 +2703,7 @@
                     "name": "symfony/contracts"
                 },
                 "branch-alias": {
-                    "dev-main": "3.5-dev"
+                    "dev-main": "3.6-dev"
                 }
             },
             "autoload": {
@@ -2718,7 +2739,7 @@
                 "standards"
             ],
             "support": {
-                "source": "https://github.com/symfony/service-contracts/tree/v3.5.1"
+                "source": "https://github.com/symfony/service-contracts/tree/v3.6.1"
             },
             "funding": [
                 {
@@ -2729,25 +2750,29 @@
                     "url": "https://github.com/fabpot",
                     "type": "github"
                 },
+                {
+                    "url": "https://github.com/nicolas-grekas",
+                    "type": "github"
+                },
                 {
                     "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
                     "type": "tidelift"
                 }
             ],
-            "time": "2024-09-25T14:20:29+00:00"
+            "time": "2025-07-15T11:30:57+00:00"
         },
         {
             "name": "symfony/var-exporter",
-            "version": "v6.4.19",
+            "version": "v6.4.36",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/var-exporter.git",
-                "reference": "be6e71b0c257884c1107313de5d247741cfea172"
+                "reference": "f9c4a9695a9e2bbc65c920e147d8d7ae28f8d79a"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/var-exporter/zipball/be6e71b0c257884c1107313de5d247741cfea172",
-                "reference": "be6e71b0c257884c1107313de5d247741cfea172",
+                "url": "https://api.github.com/repos/symfony/var-exporter/zipball/f9c4a9695a9e2bbc65c920e147d8d7ae28f8d79a",
+                "reference": "f9c4a9695a9e2bbc65c920e147d8d7ae28f8d79a",
                 "shasum": ""
             },
             "require": {
@@ -2795,7 +2820,7 @@
                 "serialize"
             ],
             "support": {
-                "source": "https://github.com/symfony/var-exporter/tree/v6.4.19"
+                "source": "https://github.com/symfony/var-exporter/tree/v6.4.36"
             },
             "funding": [
                 {
@@ -2806,12 +2831,16 @@
                     "url": "https://github.com/fabpot",
                     "type": "github"
                 },
+                {
+                    "url": "https://github.com/nicolas-grekas",
+                    "type": "github"
+                },
                 {
                     "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
                     "type": "tidelift"
                 }
             ],
-            "time": "2025-02-13T09:33:32+00:00"
+            "time": "2026-03-10T15:06:19+00:00"
         },
         {
             "name": "theseer/tokenizer",
diff --git a/example/01-latlon.php b/example/01-latlon.php
index e71e16b..35c95c8 100644
--- a/example/01-latlon.php
+++ b/example/01-latlon.php
@@ -12,7 +12,7 @@
 require __DIR__ . "/../vendor/autoload.php";
 
 $startTime = microtime(true);
-$fileCache = new Gt\FileCache\Cache("/tmp/ip-address-geolocation");
+$fileCache = new GT\FileCache\Cache("/tmp/ip-address-geolocation");
 
 function httpJson(string $uri):object {
 	$ch = curl_init($uri);
@@ -22,14 +22,14 @@ function httpJson(string $uri):object {
 
 	$response = curl_exec($ch);
 	if($response === false) {
-		throw new Gt\FileCache\CacheValueGenerationException(curl_error($ch));
+		throw new GT\FileCache\CacheValueGenerationException(curl_error($ch));
 	}
 
 	try {
 		return json_decode($response, flags: JSON_THROW_ON_ERROR);
 	}
 	catch(JsonException $exception) {
-		throw new Gt\FileCache\CacheValueGenerationException(
+		throw new GT\FileCache\CacheValueGenerationException(
 			"Invalid JSON returned from $uri",
 			previous: $exception,
 		);
diff --git a/example/02-class.php b/example/02-class.php
index 847b9c7..66eb37d 100644
--- a/example/02-class.php
+++ b/example/02-class.php
@@ -1,7 +1,7 @@
 <?php
 require __DIR__ . "/../vendor/autoload.php";
 
-use Gt\FileCache\Cache;
+use GT\FileCache\Cache;
 
 $fileCache = new Cache("/tmp/phpgt-filecache-datetime");
 
diff --git a/src/Cache.php b/src/Cache.php
index 1986d7c..9fc7835 100644
--- a/src/Cache.php
+++ b/src/Cache.php
@@ -1,5 +1,5 @@
 <?php
-namespace Gt\FileCache;
+namespace GT\FileCache;
 
 use DateTimeImmutable;
 use DateTimeInterface;
diff --git a/src/CacheInvalidException.php b/src/CacheInvalidException.php
index f77db62..b71b589 100644
--- a/src/CacheInvalidException.php
+++ b/src/CacheInvalidException.php
@@ -1,5 +1,5 @@
 <?php
-namespace Gt\FileCache;
+namespace GT\FileCache;
 
 class CacheInvalidException extends FileCacheException {
 
diff --git a/src/CacheValueGenerationException.php b/src/CacheValueGenerationException.php
index e28e31f..eaef586 100644
--- a/src/CacheValueGenerationException.php
+++ b/src/CacheValueGenerationException.php
@@ -1,4 +1,4 @@
 <?php
-namespace Gt\FileCache;
+namespace GT\FileCache;
 
 class CacheValueGenerationException extends FileCacheException {}
diff --git a/src/FileAccess.php b/src/FileAccess.php
index e61cb59..dcd49e5 100644
--- a/src/FileAccess.php
+++ b/src/FileAccess.php
@@ -1,5 +1,5 @@
 <?php
-namespace Gt\FileCache;
+namespace GT\FileCache;
 
 class FileAccess {
 	public function __construct(
@@ -8,7 +8,7 @@ public function __construct(
 	}
 
 	public function getData(string $name):mixed {
-		$filePath = "$this->dirPath/$name";
+		$filePath = $this->getFilePath($name);
 		if(!is_file($filePath)) {
 			throw new FileNotFoundException($filePath);
 		}
@@ -18,7 +18,7 @@ public function getData(string $name):mixed {
 	}
 
 	public function setData(string $name, mixed $value):void {
-		$filePath = "$this->dirPath/$name";
+		$filePath = $this->getFilePath($name);
 		if(!is_dir(dirname($filePath))) {
 			mkdir(dirname($filePath), 0775, true);
 		}
@@ -26,7 +26,7 @@ public function setData(string $name, mixed $value):void {
 	}
 
 	public function checkValidity(string $name, int $secondsValidity):void {
-		$filePath = "$this->dirPath/$name";
+		$filePath = $this->getFilePath($name);
 		if(!is_file($filePath)) {
 			throw new CacheInvalidException("$filePath (does not exist)");
 		}
@@ -37,11 +37,16 @@ public function checkValidity(string $name, int $secondsValidity):void {
 	}
 
 	public function invalidate(string $name):void {
-		$filePath = "$this->dirPath/$name";
+		$filePath = $this->getFilePath($name);
 		if(!is_file($filePath)) {
 			return;
 		}
 
 		unlink($filePath);
 	}
+
+	private function getFilePath(string $name):string {
+		$escapedName = rawurlencode($name);
+		return "$this->dirPath/$escapedName";
+	}
 }
diff --git a/src/FileCacheException.php b/src/FileCacheException.php
index 7ca90af..329c759 100644
--- a/src/FileCacheException.php
+++ b/src/FileCacheException.php
@@ -1,5 +1,5 @@
 <?php
-namespace Gt\FileCache;
+namespace GT\FileCache;
 
 use RuntimeException;
 
diff --git a/src/FileNotFoundException.php b/src/FileNotFoundException.php
index 1b7641f..b861a24 100644
--- a/src/FileNotFoundException.php
+++ b/src/FileNotFoundException.php
@@ -1,4 +1,4 @@
 <?php
-namespace Gt\FileCache;
+namespace GT\FileCache;
 
 class FileNotFoundException extends FileCacheException {}
diff --git a/test/phpunit/CacheTest.php b/test/phpunit/CacheTest.php
index d6d8f75..eeb8435 100644
--- a/test/phpunit/CacheTest.php
+++ b/test/phpunit/CacheTest.php
@@ -1,11 +1,11 @@
 <?php
-namespace Gt\FileCache\Test;
+namespace GT\FileCache\Test;
 
-use Gt\FileCache\Cache;
-use Gt\FileCache\CacheInvalidException;
-use Gt\FileCache\CacheValueGenerationException;
-use Gt\FileCache\FileAccess;
-use Gt\FileCache\FileNotFoundException;
+use GT\FileCache\Cache;
+use GT\FileCache\CacheInvalidException;
+use GT\FileCache\CacheValueGenerationException;
+use GT\FileCache\FileAccess;
+use GT\FileCache\FileNotFoundException;
 use PHPUnit\Framework\TestCase;
 use SplFileInfo;
 use SplFixedArray;
@@ -66,6 +66,33 @@ public function testGet_nullValueCanBeCached():void {
 		self::assertSame(1, $count);
 	}
 
+	public function testGet_urlName_isEscapedToReadableFilename():void {
+		$sut = $this->getSut();
+		$name = "https://example.com/test";
+		$value = "cached-value";
+
+		self::assertSame($value, $sut->get($name, fn() => $value));
+
+		$expectedFile = sys_get_temp_dir()
+			. "/phpgt-filecache/"
+			. rawurlencode($name);
+		self::assertFileExists($expectedFile);
+		self::assertSame($value, unserialize(file_get_contents($expectedFile)));
+	}
+
+	public function testGet_urlName_doesNotTraverseFilesystem():void {
+		$sut = $this->getSut();
+		$name = "../outside-cache";
+		$value = "cached-value";
+
+		self::assertSame($value, $sut->get($name, fn() => $value));
+
+		$cacheDir = sys_get_temp_dir() . "/phpgt-filecache";
+		$expectedFile = $cacheDir . "/" . rawurlencode($name);
+		self::assertFileExists($expectedFile);
+		self::assertFileDoesNotExist(sys_get_temp_dir() . "/outside-cache");
+	}
+
 	public function testGet_generationExceptionDoesNotWriteInvalidValue():void {
 		$fileAccess = self::createMock(FileAccess::class);
 		$fileAccess->expects(self::once())