From df829ad19dd389a5441f47ae303cd1ecd45908d2 Mon Sep 17 00:00:00 2001
From: nuno maduro <enunomaduro@gmail.com>
Date: Sat, 2 May 2026 17:37:47 +0100
Subject: [PATCH] wip

---
 src/Plugins/Tia/FileState.php | 16 +++++++++++++---
 src/Plugins/Tia/Graph.php     |  9 ++++++++-
 2 files changed, 21 insertions(+), 4 deletions(-)

diff --git a/src/Plugins/Tia/FileState.php b/src/Plugins/Tia/FileState.php
index 92dd4c03..91dc7892 100644
--- a/src/Plugins/Tia/FileState.php
+++ b/src/Plugins/Tia/FileState.php
@@ -9,9 +9,11 @@ use Pest\Plugins\Tia\Contracts\State;
 /**
  * @internal
  */
-final readonly class FileState implements State
+final class FileState implements State
 {
-    private string $rootDir;
+    private readonly string $rootDir;
+
+    private ?string $resolvedRoot = null;
 
     public function __construct(string $rootDir)
     {
@@ -100,9 +102,17 @@ final readonly class FileState implements State
 
     private function resolvedRoot(): ?string
     {
+        if ($this->resolvedRoot !== null) {
+            return $this->resolvedRoot;
+        }
+
         $resolved = @realpath($this->rootDir);
 
-        return $resolved === false ? null : $resolved;
+        if ($resolved === false) {
+            return null;
+        }
+
+        return $this->resolvedRoot = $resolved;
     }
 
     private function ensureRoot(): bool
diff --git a/src/Plugins/Tia/Graph.php b/src/Plugins/Tia/Graph.php
index 0327658d..e23d0485 100644
--- a/src/Plugins/Tia/Graph.php
+++ b/src/Plugins/Tia/Graph.php
@@ -52,6 +52,9 @@ final class Graph
     /** @var array<string, true>|null */
     private ?array $archTestFiles = null;
 
+    /** @var array<string, string|false> */
+    private array $realpathCache = [];
+
     public function __construct(string $projectRoot)
     {
         $real = @realpath($projectRoot);
@@ -1331,7 +1334,11 @@ final class Graph
         $isAbsolute = str_starts_with($path, DIRECTORY_SEPARATOR)
             || (strlen($path) >= 2 && $path[1] === ':');
         if ($isAbsolute) {
-            $real = @realpath($path);
+            if (array_key_exists($path, $this->realpathCache)) {
+                $real = $this->realpathCache[$path];
+            } else {
+                $real = $this->realpathCache[$path] = @realpath($path);
+            }
 
             if ($real === false) {
                 $real = $path;