From c0cde8a08ae8895b9e4f0f07729262a8bf16a7a2 Mon Sep 17 00:00:00 2001
From: matt <matt@fiddaman.net>
Date: Fri, 22 Apr 2022 02:33:26 +0000
Subject: [PATCH] Implemented Test.getAverageScore and Percentage

---
 lib/Test.js | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/lib/Test.js b/lib/Test.js
index b7236ca..92f57b5 100644
--- a/lib/Test.js
+++ b/lib/Test.js
@@ -151,6 +151,19 @@ class Test {
 		}));
 	}
 
+	async getAverageScore() {
+		const trs = await this.getTestResults();
+
+		return trs.reduce((a, b) => a + b.mark, 0) /
+			(trs.length || 1);
+	}
+
+	async getAveragePercentage() {
+		return await this.getAverageScore() /
+			this.template.maxMark *
+			100;
+	}
+
 	async addResult(accountId, studentId, mark) {
 		const tr = await TestResult.create(
 			this.#conn,