Fix path checking

Author: kylekatarnls

src/Phug/Compiler/Locator/FileLocator.php

@@ -21,7 +21,7 @@ private function getFullPath($location, $path, $extension)
 
         $length = strlen($extension);
 
-        if ($length && substr($path, $length) === $extension &&
+        if ($length && substr($path, -$length) === $extension &&
             @is_file($fullPath = "$location/$path") && is_readable($fullPath)
         ) {
             return realpath($fullPath);

tests/Phug/Compiler/Locator/FileLocatorTest.php

@@ -28,10 +28,21 @@ public function testLocate()
             '/views/base.pug',
             str_replace('\\', '/', $locator->locate('base', $paths, $extensions))
         );
+        self::assertFileExists($locator->locate('base.pug', $paths, $extensions));
         self::assertStringEndsWith(
             '/views/base.pug',
             str_replace('\\', '/', $locator->locate('base.pug', $paths, $extensions))
         );
+        self::assertFileExists($locator->locate('first-module', $paths, $extensions));
+        self::assertStringEndsWith(
+            '/mixins/lib1/first-module.pug',
+            str_replace('\\', '/', $locator->locate('first-module', $paths, $extensions))
+        );
+        self::assertFileExists($locator->locate('first-module.pug', $paths, $extensions));
+        self::assertStringEndsWith(
+            '/mixins/lib1/first-module.pug',
+            str_replace('\\', '/', $locator->locate('first-module.pug', $paths, $extensions))
+        );
 
         self::assertFileExists($locator->locate('../layouts/base', $paths, $extensions));
         self::assertStringEndsWith(