Refactor photo_driver to use namespaces.

Add simple UnitTest, but it is not yet very meaningful.

tests/unit/includes/PhotodriverTest.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace Zotlabs\Tests\Unit\includes;
+
+//use Zotlabs\Photo\PhotoGd;
+use Zotlabs\Tests\Unit\UnitTestCase;
+//use phpmock\phpunit\PHPMock;
+
+/**
+ * @brief Unit Test cases for include/photo/photo_driver.php file.
+ */
+class PhotodriverTest extends UnitTestCase {
+	//use PHPMock;
+
+	public function testPhotofactoryReturnsNullForUnsupportedType() {
+		// php-mock can not mock global functions which is called by a global function.
+		// If the calling function is in a namespace it would work.
+		//$logger = $this->getFunctionMock(__NAMESPACE__, 'logger');
+		//$logger->expects($this->once());
+
+		//$ph = \photo_factory('', 'image/bmp');
+		//$this->assertNull($ph);
+
+		$this->markTestIncomplete('Need to mock logger(), otherwise not unit testable.');
+	}
+
+	public function testPhotofactoryReturnsPhotogdIfConfigIgnore_imagickIsSet() {
+		// php-mock can not mock global functions which is called by a global function.
+		// If the calling function is in a namespace it would work.
+		//$gc = $this->getFunctionMock(__NAMESPACE__, 'get_config');
+		// simulate get_config('system', 'ignore_imagick') configured
+		//$gc->expects($this->once())->willReturn(1)
+
+		//$ph = \photo_factory(file_get_contents('images/hz-16.png'), 'image/png');
+		//$this->assertInstanceOf(PhotoGd::class, $ph);
+
+		$this->markTestIncomplete('Need to mock get_config(), otherwise not unit testable.');
+	}
+}