Allow views directory to be empty

src/Phug/Tester/Coverage.php

@@ -380,6 +380,10 @@ public function dumpCoverage(bool $output = false, string $directory = null)
         $files = [];
         $this->tree = [];
         foreach ($this->getPaths() as $path) {
+            if (!is_dir($path)) {
+                continue;
+            }
+
             foreach ($this->renderer->scanDirectory($path) as $file) {
                 $coveredState = 0;
                 $file = realpath($file);
@@ -441,9 +445,9 @@ public function dumpCoverage(bool $output = false, string $directory = null)
         if ($directory) {
             $this->writeSummaries($directory);
         }
-        $pad = max(array_map(function ($path) {
+        $pad = max(array_pad(array_map(function ($path) {
             return strlen($path);
-        }, array_keys($files))) + 3;
+        }, array_keys($files)), 1, 0)) + 3;
         $coveredNodes = 0;
         $nodes = 0;
         foreach ($files as $file => $stats) {
@@ -492,6 +496,14 @@ public function createRenderer($renderer, array $options = []): Renderer
         return $renderer;
     }
 
+    /**
+     * @return Renderer
+     */
+    public function getRenderer(): Renderer
+    {
+        return $this->renderer;
+    }
+
     /**
      * @param int $threshold
      */