1 files changed, 58 insertions, 0 deletions
diff --git a/src/mod360-test.h b/src/mod360-test.h
new file mode 100644
index 000000000..3f276b24e
--- /dev/null
+++ b/src/mod360-test.h
@@ -0,0 +1,58 @@
+
+#ifndef SEEN_MOD_360_TEST_H
+#define SEEN_MOD_360_TEST_H
+
+#include <cxxtest/TestSuite.h>
+
+#include <isnan.h>
+
+#include "mod360.h"
+
+
+class Mod360Test : public CxxTest::TestSuite
+{
+public:
+    static double const inf = 1e400;
+    static double const nan = inf - inf;
+
+    void testMod360()
+    {
+        double cases[][2] = {
+            {0, 0},
+            {10, 10},
+            {360, 0},
+            {361, 1},
+            {-1, 359},
+            {-359, 1},
+            {-360, -0},
+            {-361, 359},
+            {inf, 0},
+            {-inf, 0},
+            {nan, 0},
+            {720, 0},
+            {-721, 359},
+            {-1000, 80}
+        };
+
+        for ( unsigned i = 0; i < G_N_ELEMENTS(cases); i++ ) {
+            double result = mod360( cases[i][0] );
+            TS_ASSERT_EQUALS( cases[i][1], result );
+        }
+    }
+
+};
+
+
+#endif // SEEN_MOD_360_TEST_H
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :
+