diff --git a/tests/phpunit/tests/image/base.php b/tests/phpunit/tests/image/base.php
index 7ea54883c6..d417cf17ea 100644
--- a/tests/phpunit/tests/image/base.php
+++ b/tests/phpunit/tests/image/base.php
@@ -36,13 +36,13 @@ abstract class WP_Image_UnitTestCase extends WP_UnitTestCase {
 	}
 
 	/**
-	 * Helper assertion for testing alpha on images
+	 * Helper assertion for testing alpha on images using GD library
 	 *
 	 * @param  string $image_path
 	 * @param  array $point      array(x,y)
 	 * @param  int $alpha
 	 */
-	protected function assertImageAlphaAtPoint( $image_path, $point, $alpha ) {
+	protected function assertImageAlphaAtPointGD( $image_path, $point, $alpha ) {
 		$im = imagecreatefrompng( $image_path );
 		$rgb = imagecolorat( $im, $point[0], $point[1] );
 
@@ -51,6 +51,20 @@ abstract class WP_Image_UnitTestCase extends WP_UnitTestCase {
 		$this->assertEquals( $alpha, $colors['alpha'] );
 	}
 
+	/**
+	 * Helper assertion for testing alpha on images using Imagick
+	 *
+	 * @param string $image_path
+	 * @param array $point      array(x,y)
+	 * @param int $expected
+	 */
+	protected function assertImageAlphaAtPointImagick( $image_path, $point, $expected ) {
+		$im = new Imagick( $image_path );
+		$pixel = $im->getImagePixelColor( $point[0], $point[1] );
+		$color = $pixel->getColorValue( imagick::COLOR_ALPHA );
+		$this->assertEquals( $expected, $color );
+	}
+
 	/**
 	 * Helper assertion to check actual image dimensions on disk
 	 *
diff --git a/tests/phpunit/tests/image/editor_gd.php b/tests/phpunit/tests/image/editor_gd.php
index c1abe2c4f4..14dcd985ff 100644
--- a/tests/phpunit/tests/image/editor_gd.php
+++ b/tests/phpunit/tests/image/editor_gd.php
@@ -472,7 +472,7 @@ class Tests_Image_Editor_GD extends WP_Image_UnitTestCase {
 
 		$editor->save( $save_to_file );
 
-		$this->assertImageAlphaAtPoint( $save_to_file, array( 0,0 ), 127 );
+		$this->assertImageAlphaAtPointGD( $save_to_file, array( 0,0 ), 127 );
 
 		unlink( $save_to_file );
 	}
@@ -495,7 +495,7 @@ class Tests_Image_Editor_GD extends WP_Image_UnitTestCase {
 
 		$editor->save( $save_to_file );
 
-		$this->assertImageAlphaAtPoint( $save_to_file, array( 0,0 ), 127 );
+		$this->assertImageAlphaAtPointGD( $save_to_file, array( 0,0 ), 127 );
 
 		unlink( $save_to_file );
 	}
diff --git a/tests/phpunit/tests/image/editor_imagick.php b/tests/phpunit/tests/image/editor_imagick.php
index 6e0342ea7f..b77ae065f3 100644
--- a/tests/phpunit/tests/image/editor_imagick.php
+++ b/tests/phpunit/tests/image/editor_imagick.php
@@ -472,7 +472,11 @@ class Tests_Image_Editor_Imagick extends WP_Image_UnitTestCase {
 
 		$editor->save( $save_to_file );
 
-		$this->assertImageAlphaAtPoint( $save_to_file, array( 0,0 ), 127 );
+		$im = new Imagick( $save_to_file );
+		$pixel = $im->getImagePixelColor( 0, 0 );
+		$expected = $pixel->getColorValue( imagick::COLOR_ALPHA );
+
+		$this->assertImageAlphaAtPointImagick( $save_to_file, array( 0,0 ), $expected );
 
 		unlink( $save_to_file );
 	}
@@ -495,7 +499,11 @@ class Tests_Image_Editor_Imagick extends WP_Image_UnitTestCase {
 
 		$editor->save( $save_to_file );
 
-		$this->assertImageAlphaAtPoint( $save_to_file, array( 0,0 ), 127 );
+		$im = new Imagick( $save_to_file );
+		$pixel = $im->getImagePixelColor( 0, 0 );
+		$expected = $pixel->getColorValue( imagick::COLOR_ALPHA );
+
+		$this->assertImageAlphaAtPointImagick( $save_to_file, array( 0,0 ), $expected );
 
 		unlink( $save_to_file );
 	}