From 838e5f77478e5648769439e191e3ff0a8e6405ab Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Mon, 22 Feb 2021 20:12:59 +0000
Subject: Add meandering support

Add rail links between existing nodes and arbitrary points
---
 test/test-maths.cpp | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

(limited to 'test/test-maths.cpp')

diff --git a/test/test-maths.cpp b/test/test-maths.cpp
index 49114da..d5848c6 100644
--- a/test/test-maths.cpp
+++ b/test/test-maths.cpp
@@ -2,6 +2,7 @@
 
 #include <boost/test/data/test_case.hpp>
 #include <boost/test/unit_test.hpp>
+#include <iomanip>
 #include <stream_support.hpp>
 
 #include <glm/glm.hpp>
@@ -74,3 +75,20 @@ BOOST_DATA_TEST_CASE(test_create_arc,
 	BOOST_CHECK_CLOSE(arc.first, a.first, 1.F);
 	BOOST_CHECK_CLOSE(arc.second, a.second, 1.F);
 }
+
+using fac = std::tuple<glm::vec2, float, glm::vec2, float, glm::vec2, bool>;
+BOOST_DATA_TEST_CASE(test_find_arc_centre,
+		boost::unit_test::data::make<fac>({
+				{{2, 2}, pi, {3, 3}, half_pi, {3, 2}, true},
+				{{2, 2}, pi, {1, 3}, -half_pi, {1, 2}, false},
+				{{-1100, -1000}, pi, {-900, -800}, half_pi, {-900, -1000}, true},
+				{{1100, 1000}, 0, {1050, 900}, pi + 0.92, {973, 1000}, true},
+				{{1050, 900}, 0.92, {1000, 800}, pi, {1127, 800}, false},
+		}),
+		s, es, e, ee, exp, lr)
+{
+	const auto c = find_arc_centre(s, es, e, ee);
+	BOOST_CHECK_CLOSE(exp.x, c.first.x, 1);
+	BOOST_CHECK_CLOSE(exp.y, c.first.y, 1);
+	BOOST_CHECK_EQUAL(lr, c.second);
+}
-- 
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