Add ability to extract Class from Test

lib/Test.js

@@ -45,6 +45,12 @@ class Test {
 	 */
 	classId;
 
+	/**
+	 * The class object that it is assigned to
+	 * @type {Class}
+	 */
+	class;
+
 	/**
 	 * The test date in epoch seconds
 	 * @type {number}
@@ -86,14 +92,15 @@ class Test {
 				this[k] = v;
 
 			this.date = new TestDate(this.epochDate * 1000);
-			this.template = await new TestTemplate(this.templateId);
+
+			this.class = await this.getClass();
 
 			return this;
 		})();
 	}
 
-	get class() {
-
+	async getClass() {
+		return new (require('./Class'))(this.classId);
 	}
 
 	get students() {