Add unit tests appLogoImage function helper

app/helpers.php

@@ -204,16 +204,25 @@ function dateDifference($date1, $date2, $differenceFormat = '%a')
     return $interval->format($differenceFormat);
 }
 
-function appLogoImage()
+function appLogoImage($attributes = [])
 {
-    $logoString = '<img style="display: block;text-align: center;margin: 0 auto;width: 100%;max-width: 200px"';
-    $logoString .= 'src="'.appLogoPath().'">';
-    return $logoString;
+    return Html::image(
+        appLogoPath(),
+        'Logo '.Option::get('agency_name', 'Laravel'),
+        $attributes
+    );
 }
 
 function appLogoPath()
 {
-    return asset('assets/imgs/'.Option::get('agency_logo_path', 'default-logo.png'));
+    $defaultLogoImagePath = 'default-logo.png';
+    $optionLogoImagePath = Option::get('agency_logo_path');
+
+    if (is_file(public_path('assets/imgs/'.$optionLogoImagePath))) {
+        return asset('assets/imgs/'.$optionLogoImagePath);
+    }
+
+    return asset('assets/imgs/'.$defaultLogoImagePath);
 }
 
 function monthDateArray($year, $month)

tests/Unit/Helpers/AppLogoImageTest.php

@@ -0,0 +1,86 @@
+<?php
+
+namespace Tests\Unit\Helpers;
+
+use Tests\TestCase;
+
+class AppLogoImageTest extends TestCase
+{
+    /** @test */
+    public function app_logo_path_function_returns_correct_logo_image_path_based_on_agency_logo_path_setting()
+    {
+        \DB::table('site_options')->insert([
+            'key'   => 'agency_logo_path',
+            'value' => 'icon_user_1.png',
+        ]);
+
+        $this->assertEquals(asset('assets/imgs/icon_user_1.png'), appLogoPath());
+    }
+
+    /** @test */
+    public function app_logo_path_function_returns_default_logo_image_path_if_no_image_logo_path_setting()
+    {
+        $this->assertEquals(asset('assets/imgs/default-logo.png'), appLogoPath());
+    }
+
+    /** @test */
+    public function app_logo_image_function_returns_default_logo_image_element_if_no_agency_logo_path_setting()
+    {
+        $logoString = '<img';
+        $logoString .= ' src="'.asset('assets/imgs/default-logo.png').'"';
+        $logoString .= ' alt="Logo Laravel">';
+
+        $this->assertEquals($logoString, appLogoImage());
+    }
+
+    /** @test */
+    public function app_logo_image_function_returns_correct_logo_image_elemet_based_on_agency_logo_path_setting()
+    {
+        \DB::table('site_options')->insert([
+            'key'   => 'agency_logo_path',
+            'value' => 'icon_user_1.png',
+        ]);
+
+        $logoString = '<img';
+        $logoString .= ' src="'.asset('assets/imgs/icon_user_1.png').'"';
+        $logoString .= ' alt="Logo Laravel">';
+
+        $this->assertEquals($logoString, appLogoImage());
+    }
+
+    /** @test */
+    public function app_logo_image_function_has_overrideable_attributes()
+    {
+        \DB::table('site_options')->insert([
+            'key'   => 'agency_name',
+            'value' => 'My Agency Name',
+        ]);
+
+        $logoString = '<img';
+        $logoString .= ' src="'.asset('assets/imgs/default-logo.png').'"';
+        $logoString .= ' class="123"';
+        $logoString .= ' style="display: inline"';
+        $logoString .= ' alt="Logo My Agency Name">';
+
+        $overrides = [
+            'class' => '123',
+            'style' => 'display: inline',
+        ];
+        $this->assertEquals($logoString, appLogoImage($overrides));
+    }
+
+    /** @test */
+    public function app_logo_image_function_returns_default_logo_image_if_agency_logo_file_doesnt_exists()
+    {
+        \DB::table('site_options')->insert([
+            'key'   => 'agency_logo_path',
+            'value' => 'agency_logo.jpg',
+        ]);
+
+        $logoString = '<img';
+        $logoString .= ' src="'.asset('assets/imgs/default-logo.png').'"';
+        $logoString .= ' alt="Logo Laravel">';
+
+        $this->assertEquals($logoString, appLogoImage());
+    }
+}