Adds Exception for the case a template file is not found

src/Exceptions/TemplateNotFoundException.php

@@ -0,0 +1,14 @@
+<?php
+namespace Aheenam\Mozhi\Exceptions;
+
+use Throwable;
+
+class TemplateNotFoundException extends \Exception
+{
+
+    public function __construct($message = "", $code = 0, Throwable $previous = null)
+    {
+        parent::__construct($message, $code, $previous);
+    }
+
+}

src/TemplateRenderer.php

@@ -2,6 +2,7 @@
 namespace Aheenam\Mozhi;
 
 
+use Aheenam\Mozhi\Exceptions\TemplateNotFoundException;
 use Aheenam\Mozhi\Models\Page;
 
 class TemplateRenderer
@@ -35,12 +36,16 @@ public function __construct(Page $page)
      *
      * @param array $data
      * @return string
+     * @throws TemplateNotFoundException
      */
     public function render($data = [])
     {
         $currentTheme = self::getCurrentTheme();
         $template = $this->getTemplate();
 
+        if ( !view()->exists("theme::$currentTheme.$template") )
+            throw new TemplateNotFoundException("Template [$template] was not found in theme [$currentTheme]");
+
         return view("theme::$currentTheme.$template", collect([
             'meta' => $this->page->meta(),
             'content' => $this->page->getParsedContent()

tests/TemplateRendererTest.php

@@ -1,6 +1,7 @@
 <?php
 namespace Aheenam\Mozhi\Test;
 
+use Aheenam\Mozhi\Exceptions\TemplateNotFoundException;
 use Aheenam\Mozhi\RouteResolver;
 use Aheenam\Mozhi\TemplateRenderer;
 use Spatie\Snapshots\MatchesSnapshots;
@@ -38,6 +39,16 @@ public function it_returns_default_if_no_template_is_defined ()
         $this->assertEquals('page', $template);
     }
 
+    /** @test */
+    public function it_throws_an_exception_if_view_does_not_exists()
+    {
+        $this->expectException(TemplateNotFoundException::class);
+
+        $page = (new RouteResolver)->getPageByRoute('/no-view');
+
+        $this->assertMatchesSnapshot((new TemplateRenderer($page))->render());
+    }
+
     /** @test */
     public function it_renders_a_page_view ()
     {

tests/tmp/contents/no-view.md

@@ -0,0 +1,6 @@
+---
+title: demo
+template: nothing
+---
+
+# No template