diff --git a/composer.json b/composer.json
index f89f315..f40887b 100644
--- a/composer.json
+++ b/composer.json
@@ -13,12 +13,14 @@
         "psr-4": {
             "EzSystems\\EzPlatformCoreBundle\\": "src/EzPlatformCoreBundle/bundle/",
             "EzSystems\\EzPlatformEncoreBundle\\": "src/EzPlatformEncoreBundle/bundle/",
-            "Ibexa\\Platform\\Bundle\\Assets\\": "src/IbexaPlatformAssetsBundle/bundle/"
+            "Ibexa\\Platform\\Bundle\\Assets\\": "src/IbexaPlatformAssetsBundle/bundle/",
+            "Ibexa\\Platform\\Assets\\": "src/IbexaPlatformAssetsBundle/lib/"
         }
     },
     "autoload-dev": {
         "psr-4": {
-            "EzSystems\\Tests\\EzPlatformCoreBundle\\": "tests/EzPlatformCoreBundle/bundle/"
+            "EzSystems\\Tests\\EzPlatformCoreBundle\\": "tests/EzPlatformCoreBundle/bundle/",
+            "Ibexa\\Platform\\Tests\\Assets\\": "tests/IbexaPlatformAssetsBundle/lib/"
         }
     },
     "require": {
diff --git a/phpunit.xml b/phpunit.xml
index 7183ebf..cf667ae 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -6,11 +6,18 @@
   convertWarningsToExceptions="true"
   beStrictAboutTestsThatDoNotTestAnything="true"
   colors="true"
+  bootstrap="vendor/autoload.php"
 >
   <php>
     <ini name="error_reporting" value="-1" />
   </php>
-  <testsuite name="EzPlatformCoreBundle">
-    <directory>tests/EzPlatformCoreBundle/bundle</directory>
-  </testsuite>
+  <testsuites>
+    <testsuite name="EzPlatformCoreBundle">
+      <directory>tests/EzPlatformCoreBundle/bundle</directory>
+    </testsuite>
+    <testsuite name="IbexaPlatformAssetsBundle">
+      <directory>tests/IbexaPlatformAssetsBundle/bundle</directory>
+      <directory>tests/IbexaPlatformAssetsBundle/lib</directory>
+    </testsuite>
+  </testsuites>
 </phpunit>
diff --git a/src/IbexaPlatformAssetsBundle/bundle/Resources/config/services.yaml b/src/IbexaPlatformAssetsBundle/bundle/Resources/config/services.yaml
index 8976790..ec20b66 100644
--- a/src/IbexaPlatformAssetsBundle/bundle/Resources/config/services.yaml
+++ b/src/IbexaPlatformAssetsBundle/bundle/Resources/config/services.yaml
@@ -1,4 +1,5 @@
 imports:
+    - { resource: services/resolver.yaml }
     - { resource: services/twig.yaml }
 
 ##
diff --git a/src/IbexaPlatformAssetsBundle/bundle/Resources/config/services/resolver.yaml b/src/IbexaPlatformAssetsBundle/bundle/Resources/config/services/resolver.yaml
new file mode 100644
index 0000000..057ae30
--- /dev/null
+++ b/src/IbexaPlatformAssetsBundle/bundle/Resources/config/services/resolver.yaml
@@ -0,0 +1,9 @@
+services:
+    _defaults:
+        autoconfigure: true
+        autowire: true
+        public: false
+
+    Ibexa\Platform\Assets\Resolver\IconPathResolver: ~
+
+    Ibexa\Platform\Assets\Resolver\IconPathResolverInterface: '@Ibexa\Platform\Assets\Resolver\IconPathResolver'
diff --git a/src/IbexaPlatformAssetsBundle/bundle/Twig/Extension/IconSetExtension.php b/src/IbexaPlatformAssetsBundle/bundle/Twig/Extension/IconSetExtension.php
index 4425d9c..5977ad0 100644
--- a/src/IbexaPlatformAssetsBundle/bundle/Twig/Extension/IconSetExtension.php
+++ b/src/IbexaPlatformAssetsBundle/bundle/Twig/Extension/IconSetExtension.php
@@ -8,25 +8,18 @@
 
 namespace Ibexa\Platform\Bundle\Assets\Twig\Extension;
 
-use eZ\Publish\Core\MVC\ConfigResolverInterface;
-use Symfony\Component\Asset\Packages;
+use Ibexa\Platform\Assets\Resolver\IconPathResolverInterface;
 use Twig\Extension\AbstractExtension;
 use Twig\TwigFunction;
 
 class IconSetExtension extends AbstractExtension
 {
-    /** @var \eZ\Publish\Core\MVC\ConfigResolverInterface */
-    private $configResolver;
+    /** @var \Ibexa\Platform\Assets\Resolver\IconPathResolverInterface */
+    private $iconPathResolver;
 
-    /** @var \Symfony\Component\Asset\Packages */
-    private $packages;
-
-    public function __construct(
-        ConfigResolverInterface $configResolver,
-        Packages $packages
-    ) {
-        $this->configResolver = $configResolver;
-        $this->packages = $packages;
+    public function __construct(IconPathResolverInterface $iconPathResolver)
+    {
+        $this->iconPathResolver = $iconPathResolver;
     }
 
     public function getFunctions(): array
@@ -44,9 +37,6 @@ public function getFunctions(): array
 
     public function getIconPath(string $icon, string $set = null): string
     {
-        $iconSetName = $set ?? $this->configResolver->getParameter('assets.default_icon_set');
-        $iconSets = $this->configResolver->getParameter('assets.icon_sets');
-
-        return sprintf('%s#%s', $this->packages->getUrl($iconSets[$iconSetName]), $icon);
+        return $this->iconPathResolver->resolve($icon, $set);
     }
 }
diff --git a/src/IbexaPlatformAssetsBundle/lib/Resolver/IconPathResolver.php b/src/IbexaPlatformAssetsBundle/lib/Resolver/IconPathResolver.php
new file mode 100644
index 0000000..2fc8dc4
--- /dev/null
+++ b/src/IbexaPlatformAssetsBundle/lib/Resolver/IconPathResolver.php
@@ -0,0 +1,40 @@
+<?php
+
+/**
+ * @copyright Copyright (C) eZ Systems AS. All rights reserved.
+ * @license For full copyright and license information view LICENSE file distributed with this source code.
+ */
+declare(strict_types=1);
+
+namespace Ibexa\Platform\Assets\Resolver;
+
+use eZ\Publish\Core\MVC\ConfigResolverInterface;
+use Symfony\Component\Asset\Packages;
+
+/**
+ * @internal
+ */
+final class IconPathResolver implements IconPathResolverInterface
+{
+    /** @var \eZ\Publish\Core\MVC\ConfigResolverInterface */
+    private $configResolver;
+
+    /** @var \Symfony\Component\Asset\Packages */
+    private $packages;
+
+    public function __construct(
+        ConfigResolverInterface $configResolver,
+        Packages $packages
+    ) {
+        $this->configResolver = $configResolver;
+        $this->packages = $packages;
+    }
+
+    public function resolve(string $icon, ?string $set = null): string
+    {
+        $iconSetName = $set ?? $this->configResolver->getParameter('assets.default_icon_set');
+        $iconSets = $this->configResolver->getParameter('assets.icon_sets');
+
+        return sprintf('%s#%s', $this->packages->getUrl($iconSets[$iconSetName]), $icon);
+    }
+}
diff --git a/src/IbexaPlatformAssetsBundle/lib/Resolver/IconPathResolverInterface.php b/src/IbexaPlatformAssetsBundle/lib/Resolver/IconPathResolverInterface.php
new file mode 100644
index 0000000..7e9efdc
--- /dev/null
+++ b/src/IbexaPlatformAssetsBundle/lib/Resolver/IconPathResolverInterface.php
@@ -0,0 +1,14 @@
+<?php
+
+/**
+ * @copyright Copyright (C) eZ Systems AS. All rights reserved.
+ * @license For full copyright and license information view LICENSE file distributed with this source code.
+ */
+declare(strict_types=1);
+
+namespace Ibexa\Platform\Assets\Resolver;
+
+interface IconPathResolverInterface
+{
+    public function resolve(string $icon, ?string $set = null): string;
+}
diff --git a/tests/IbexaPlatformAssetsBundle/lib/Resolver/IconPathResolverTest.php b/tests/IbexaPlatformAssetsBundle/lib/Resolver/IconPathResolverTest.php
new file mode 100644
index 0000000..5c855fe
--- /dev/null
+++ b/tests/IbexaPlatformAssetsBundle/lib/Resolver/IconPathResolverTest.php
@@ -0,0 +1,95 @@
+<?php
+
+/**
+ * @copyright Copyright (C) eZ Systems AS. All rights reserved.
+ * @license For full copyright and license information view LICENSE file distributed with this source code.
+ */
+declare(strict_types=1);
+
+namespace Ibexa\Platform\Tests\Assets\Resolver;
+
+use eZ\Publish\Core\MVC\ConfigResolverInterface;
+use Ibexa\Platform\Assets\Resolver\IconPathResolver;
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\Asset\Packages;
+
+final class IconPathResolverTest extends TestCase
+{
+    /** @var \eZ\Publish\Core\MVC\ConfigResolverInterface|\PHPUnit\Framework\MockObject\MockObject */
+    private $configResolver;
+
+    /** @var \PHPUnit\Framework\MockObject\MockObject|\Symfony\Component\Asset\Packages */
+    private $packages;
+
+    public function setUp(): void
+    {
+        $config = $this->getDefaultConfig();
+
+        $this->configResolver = $this->getConfigResolverMock($config);
+        $this->packages = $this->getPackagesMock($config);
+    }
+
+    /**
+     * @dataProvider resolveDataProvider
+     */
+    public function testResolve(string $icon, ?string $set, string $expectedPath): void
+    {
+        $iconPathResolver = new IconPathResolver($this->configResolver, $this->packages);
+
+        self::assertEquals($expectedPath, $iconPathResolver->resolve($icon, $set));
+    }
+
+    public function resolveDataProvider(): array
+    {
+        return [
+            [
+                'bookmark',
+                'my_icon_set',
+                '/bundles/mybundle/my-icons.svg#bookmark',
+            ],
+            [
+                'folder',
+                null,
+                '/bundles/mybundle/my-icons.svg#folder',
+            ],
+            [
+                'bookmark',
+                'my_other_icon_set',
+                '/bundles/my_other_icon_set/my-other-icons.svg#bookmark',
+            ],
+        ];
+    }
+
+    private function getDefaultConfig(): array
+    {
+        return [
+            'icon_sets' => [
+                'my_icon_set' => '/bundles/mybundle/my-icons.svg',
+                'my_other_icon_set' => '/bundles/my_other_icon_set/my-other-icons.svg',
+            ],
+            'default_icon_set' => 'my_icon_set',
+        ];
+    }
+
+    private function getConfigResolverMock(array $config): ConfigResolverInterface
+    {
+        $configResolver = $this->createMock(ConfigResolverInterface::class);
+        $configResolver->method('getParameter')->willReturnMap([
+            ['assets.icon_sets', null, null, $config['icon_sets']],
+            ['assets.default_icon_set', null, null, $config['default_icon_set']],
+        ]);
+
+        return $configResolver;
+    }
+
+    private function getPackagesMock(array $config): Packages
+    {
+        $packages = $this->createMock(Packages::class);
+        $packages->method('getUrl')->willReturnMap([
+            [$config['icon_sets']['my_icon_set'], null, $config['icon_sets']['my_icon_set']],
+            [$config['icon_sets']['my_other_icon_set'], null, $config['icon_sets']['my_other_icon_set']],
+        ]);
+
+        return $packages;
+    }
+}