From 5a43793e247fbffec590d334b89cc34d19049f45 Mon Sep 17 00:00:00 2001
From: WBoerenkamps <wrj.boerenkamps@student.avans.nl>
Date: Wed, 4 Dec 2024 16:38:15 +0100
Subject: gameloop tests

---
 src/test/loopTimerTest.cpp | 45 +++++++++++++++++++++++----------------------
 1 file changed, 23 insertions(+), 22 deletions(-)

(limited to 'src/test/loopTimerTest.cpp')

diff --git a/src/test/loopTimerTest.cpp b/src/test/loopTimerTest.cpp
index a3b1646..d2f7d9b 100644
--- a/src/test/loopTimerTest.cpp
+++ b/src/test/loopTimerTest.cpp
@@ -1,32 +1,33 @@
-#define private public
-#define protected public
-#include "api/LoopManager.h"
-#include "api/LoopTimer.h"
-#include <gmock/gmock.h>
 #include <gtest/gtest.h>
+#include <chrono>
+#include <thread>
+#include "api/LoopTimer.h"
 
-using namespace std;
-using namespace std::chrono_literals;
+using namespace std::chrono;
 using namespace crepe;
 
 class LoopTimerTest : public ::testing::Test {
-public:
-LoopTimer loop_timer = LoopTimer::get_instance();
 protected:
-	void SetUp() override {
-		loop_timer.start();
-	}
+    LoopTimer loop_timer;
 
-	void TearDown() override {
-		
-	}
+    void SetUp() override {
+        loop_timer.start(); // Reset loop timer before each test.
+    }
 };
-TEST_F(LoopTimerTest, TestDeltaTime) {
-    auto start_time = std::chrono::steady_clock::now();
-    
-    loop_timer.update();  
-    double delta_time = loop_timer.get_delta_time();
+TEST_F(LoopTimerTest, EnforcesTargetFrameRate) {
+    // Set the target FPS to 60 (which gives a target time per frame of ~16.67 ms)
+    loop_timer.set_target_fps(60);
+
+    // Simulate a short update (frame duration less than the target frame time)
+    auto start_time = steady_clock::now();
+    loop_timer.enforce_frame_rate(); // Enforce the frame rate
+
+    // Check that the loop timer's current time is greater than or equal to the target frame time
+    auto elapsed_time = steady_clock::now() - start_time;
+    auto elapsed_ms = duration_cast<milliseconds>(elapsed_time).count();
 
-    auto elapsed_time = std::chrono::steady_clock::now() - start_time;
-    EXPECT_LE(delta_time, std::chrono::duration<double>(elapsed_time).count());
+    // Assert that the elapsed time is close to the target frame time
+    // For 60 FPS, the target frame time is around 16.67ms
+    ASSERT_GE(elapsed_ms, 16);  // Make sure it's at least 16 ms (could be slightly more)
+    ASSERT_LE(elapsed_ms, 18);  // Ensure it's not too much longer
 }
-- 
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