set up test

Tests/Unit/inc/functions/Attachments/ImagifyAttachmentMetadata.php

@@ -0,0 +1,51 @@
+<?php
+
+namespace functions\Attachments;
+
+use Imagify\Tests\Unit\TestCase;
+use Brain\Monkey\{Filters, Functions};
+use Imagify_DB;
+use Mockery;
+use wpdb;
+
+class Test_magifyAttachmentMetadata extends TestCase {
+	private $attachment_id;
+
+	public function setUp(): void {
+		parent::setUp();
+		global $wpdb;
+
+		$this->wpdb = $this->getMockBuilder('wpdb')
+			->disableOriginalConstructor()
+			->getMock();
+		$this->wpdb->posts = 'wp_posts';
+		$wpdb = $this->wpdb;
+
+		$imagify_db   = Mockery::mock( Imagify_DB::class );
+
+		$this->mime_types = "'image/jpeg', 'image/png'";
+		$this->statuses = "'inherit', 'private'";
+		$this->exist_clause = "";
+
+		$imagify_db->shouldReceive('get_mime_types')
+			->andReturn($this->mime_types);
+		$imagify_db->shouldReceive('get_post_statuses')
+			->andReturn($this->statuses);
+		$imagify_db->shouldReceive('get_required_wp_metadata_exist_clause')
+			->andReturn($this->exist_clause);
+
+		require_once IMAGIFY_PLUGIN_ROOT . 'inc/functions/attachments.php';
+	}
+
+
+
+	public function testShouldReturnSanitizedKey()
+	{
+		$this->wpdb->expects($this->once())
+			->method('get_var')
+			->willReturn(1);
+
+		$result = imagify_has_attachments_without_required_metadata();
+		$this->assertTrue($result);
+	}
+}