pke-test: compare floats using epsilon

1 files changed, 14 insertions, 5 deletions

diff --git a/tests/pke-test-static-ui.cpp b/tests/pke-test-static-ui.cpp
index 9ca4cdd..410f290 100644
--- a/tests/pke-test-static-ui.cpp
+++ b/tests/pke-test-static-ui.cpp
@@ -1,9 +1,12 @@
 
 #include "./pke-test-static-ui.h"
 
+#include "./pke-test-types.h"
+
 #include "window.hpp"
 #include "dynamic-array.hpp"
 #include "vendor-glm-include.hpp"
+#include <limits>
 struct pke_ui_box_instance_buffer_item {
 	glm::mat4 pos_scale;
 	glm::vec2 px_scale;
@@ -74,6 +77,7 @@ int pke_test_static_ui_000() {
 // test dynamic
 int pke_test_static_ui_100() {
 	DynArray<pke_ui_box_instance_buffer_item> arr{};
+	bool b;
 	float unit;
 	float calculated_offset_x, calculated_offset_y;
 	uint8_t err_index = 0;
@@ -116,11 +120,16 @@ int pke_test_static_ui_100() {
 
 	PKE_TEST_ASSERT(ui_box->internal.px_size.x == (Extent.width * 0.1) * 8, err_index);
 	PKE_TEST_ASSERT(ui_box->internal.px_size.y == (Extent.height * 0.1) * 8, err_index);
-	// TODO rounding?
-	// using a debugger, the actual and calculated values are ~0.01 off
-	// this is either a real issue or a rounding issue, either here or within pke
-	PKE_TEST_ASSERT(c_ui_box->internal.px_size.x == (ui_box->internal.px_size.x - (built_in_offset * 2)) * 0.8, err_index);
-	PKE_TEST_ASSERT(c_ui_box->internal.px_size.y == (ui_box->internal.px_size.y - (built_in_offset * 2)) * 0.8, err_index);
+	b = flt_equal<float>(
+			c_ui_box->internal.px_size.x,
+			(ui_box->internal.px_size.x - (built_in_offset * 2)) * 0.8,
+			std::numeric_limits<float>::epsilon());
+	PKE_TEST_ASSERT(b, err_index);
+	b = flt_equal<float>(
+			c_ui_box->internal.px_size.y,
+			(ui_box->internal.px_size.y - (built_in_offset * 2)) * 0.8,
+			std::numeric_limits<float>::epsilon());
+	PKE_TEST_ASSERT(b, err_index);
 
 	return 0;
 }