From 8a2055abfcdf955c1ef6d358dd95736a07638e37 Mon Sep 17 00:00:00 2001
From: Danny Robson <danny@nerdcruft.net>
Date: Tue, 17 Apr 2018 17:11:41 +1000
Subject: [PATCH] WIP ellipse area

---
 test/geom/ellipse.cpp | 39 ++++++++++++++++++++++++++++++++++-----
 1 file changed, 34 insertions(+), 5 deletions(-)

diff --git a/test/geom/ellipse.cpp b/test/geom/ellipse.cpp
index a3d36ef2..1e947eca 100644
--- a/test/geom/ellipse.cpp
+++ b/test/geom/ellipse.cpp
@@ -5,11 +5,11 @@
 #include "point.hpp"
 #include "vector.hpp"
 
-int
-main ()
-{
-    util::TAP::logger tap;
 
+///////////////////////////////////////////////////////////////////////////////
+void
+test_intersection (util::TAP::logger &tap)
+{
     static struct {
         util::geom::ellipse3f shape;
         util::geom::ray3f caster;
@@ -38,10 +38,39 @@ main ()
         }
     };
 
-
     for (auto const& t: TESTS) {
         tap.expect_eq (t.distance, distance (t.caster, t.shape), "%s", t.message);
     }
+}
+
+
+void
+test_area (util::TAP::logger &tap)
+{
+    static struct {
+        util::geom::ellipse3f shape;
+        float value;
+        const char *message;
+    } const TESTS[] = {
+        { .shape = { .origin = {0}, .radius = {1}, .up = {0} }, .value = 12.57f, .message = "unit radius" },
+    };
+
+    for (auto const& t: TESTS) {
+        auto found = area (t.shape);
+        tap.expect (util::relatively_equal (found, t.value, 1.08e-2f), "%!", t.message);
+    }
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+int
+main ()
+{
+    util::TAP::logger tap;
+
+    test_intersection (tap);
+    test_area (tap);
+
 
     return tap.status ();
 }