Add tests for the icon manager

Author: Nate Wiebe

tests/IconManagerTest.php

@@ -0,0 +1,115 @@
+<?php
+
+use Feather\Exception\AliasDefinedException;
+use Feather\Exception\IconNotFoundException;
+use Feather\Icon;
+use Feather\IconManager;
+use PHPUnit\Framework\TestCase;
+
+class IconManagerTest extends TestCase
+{
+    /**
+     * @var string
+     */
+    private $iconName = 'test';
+
+    /**
+     * @var IconManager
+     */
+    private $iconManager;
+
+    protected function setUp(): void
+    {
+        $iconManager = $this->getMockBuilder(IconManager::class)
+            ->disableOriginalConstructor()
+            ->onlyMethods(['__construct'])
+            ->getMock();
+
+        $reflector = new ReflectionClass(IconManager::class);
+
+        $property = $reflector->getProperty('icons');
+        $property->setAccessible(true);
+        $property->setValue($iconManager, [$this->iconName => '']);
+
+        $property = $reflector->getProperty('attributes');
+        $property->setAccessible(true);
+        $property->setValue($iconManager, []);
+
+        $this->iconManager = $iconManager;
+    }
+
+    public function testIconRetrieval(): void
+    {
+        $icon = $this->iconManager->getIcon($this->iconName, [], '');
+
+        $this->assertInstanceOf(Icon::class, $icon);
+    }
+
+    public function testIconNotFound(): void
+    {
+        $this->expectException(IconNotFoundException::class);
+
+        $this->iconManager->getIcon('icon-that-should-not-be-found');
+    }
+
+    public function testIconAlias(): void
+    {
+        $this->iconManager->addAlias('test-alias', $this->iconName);
+
+        $icon = $this->iconManager->getIcon('test-alias');
+
+        $this->assertInstanceOf(Icon::class, $icon);
+        $this->assertEquals($this->iconName, $icon->getName());
+    }
+
+    public function testDuplicateIconAlias(): void
+    {
+        $this->expectException(AliasDefinedException::class);
+
+        $this->iconManager->addAlias('test-alias', $this->iconName);
+        $this->iconManager->addAlias('test-alias', $this->iconName);
+    }
+
+    public function testInvalidIconAlias(): void
+    {
+        $this->expectException(IconNotFoundException::class);
+
+        $this->iconManager->addAlias('test-alias', 'icon-that-should-not-be-found');
+    }
+
+    public function testMissingIconAlias(): void
+    {
+        $this->expectException(IconNotFoundException::class);
+
+        $this->iconManager->getIcon('test-alias');
+    }
+
+    public function testAttributePassing(): void
+    {
+        $attributes = [
+            'width' => 24,
+            'height' => 24,
+            'color' => '#000',
+            'data-custom-attribute' => 'custom-value',
+        ];
+
+        $this->iconManager->setAttributes($attributes);
+
+        $icon = $this->iconManager->getIcon($this->iconName);
+
+        $this->assertEquals($attributes, $icon->getAttributes());
+    }
+
+    public function testAttributeOverwritting(): void
+    {
+        $attributes = [
+            'data-custom-attribute' => 'custom-value',
+        ];
+
+        $this->iconManager->setAttributes($attributes);
+
+        $icon = $this->iconManager->getIcon($this->iconName, ['data-custom-attribute' => 'another-value']);
+
+        $this->assertEquals('another-value', $icon->getAttribute('data-custom-attribute'));
+    }
+}