diff --git a/tests/Unit/Drivers/AbstractFontProcessorTest.php b/tests/Unit/Drivers/AbstractFontProcessorTest.php
new file mode 100644
index 00000000..56e53093
--- /dev/null
+++ b/tests/Unit/Drivers/AbstractFontProcessorTest.php
@@ -0,0 +1,67 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Intervention\Image\Tests\Unit\Drivers;
+
+use Intervention\Image\Drivers\AbstractFontProcessor;
+use Intervention\Image\Geometry\Point;
+use Intervention\Image\Geometry\Rectangle;
+use Intervention\Image\Tests\BaseTestCase;
+use Intervention\Image\Typography\Font;
+use Intervention\Image\Typography\TextBlock;
+use Mockery;
+use PHPUnit\Metadata\CoversClass;
+
+#[CoversClass(AbstractFontProcessor::class)]
+class AbstractFontProcessorTest extends BaseTestCase
+{
+    public function testTextBlock(): void
+    {
+        $text = 'AAAA BBBB CCCC';
+        $font = (new Font($this->getTestResourcePath('test.ttf')))->setWrapWidth(20)->setSize(50);
+        $processor = Mockery::mock(AbstractFontProcessor::class)->makePartial();
+        $processor->shouldReceive('boxSize')->with('T', $font)->andReturn(new Rectangle(12, 6));
+        $processor->shouldReceive('boxSize')->with('Hy', $font)->andReturn(new Rectangle(24, 6));
+        $processor->shouldReceive('boxSize')->with('AAAA', $font)->andReturn(new Rectangle(24, 6));
+        $processor->shouldReceive('boxSize')->with('AAAA BBBB', $font)->andReturn(new Rectangle(24, 6));
+        $processor->shouldReceive('boxSize')->with('BBBB', $font)->andReturn(new Rectangle(24, 6));
+        $processor->shouldReceive('boxSize')->with('BBBB CCCC', $font)->andReturn(new Rectangle(24, 6));
+        $processor->shouldReceive('boxSize')->with('CCCC', $font)->andReturn(new Rectangle(24, 6));
+        $processor->shouldReceive('boxSize')->with($text, $font)->andReturn(new Rectangle(100, 25));
+        $block = $processor->textBlock($text, $font, new Point(0, 0));
+        $this->assertInstanceOf(TextBlock::class, $block);
+        $this->assertEquals(3, $block->count());
+    }
+
+    public function testNativeFontSize(): void
+    {
+        $font = (new Font($this->getTestResourcePath('test.ttf')))->setSize(32);
+        $processor = Mockery::mock(AbstractFontProcessor::class)->makePartial();
+        $this->assertEquals(32, $processor->nativeFontSize($font));
+    }
+
+    public function testTypographicalSize(): void
+    {
+        $font = new Font($this->getTestResourcePath('test.ttf'));
+        $processor = Mockery::mock(AbstractFontProcessor::class)->makePartial();
+        $processor->shouldReceive('boxSize')->with('Hy', $font)->andReturn(new Rectangle(24, 6));
+        $this->assertEquals(6, $processor->typographicalSize($font));
+    }
+
+    public function testCapHeight(): void
+    {
+        $font = new Font($this->getTestResourcePath('test.ttf'));
+        $processor = Mockery::mock(AbstractFontProcessor::class)->makePartial();
+        $processor->shouldReceive('boxSize')->with('T', $font)->andReturn(new Rectangle(24, 6));
+        $this->assertEquals(6, $processor->capHeight($font));
+    }
+
+    public function testLeading(): void
+    {
+        $font = (new Font($this->getTestResourcePath('test.ttf')))->setLineHeight(3);
+        $processor = Mockery::mock(AbstractFontProcessor::class)->makePartial();
+        $processor->shouldReceive('boxSize')->with('Hy', $font)->andReturn(new Rectangle(24, 6));
+        $this->assertEquals(18, $processor->leading($font));
+    }
+}