1 files changed, 17 insertions, 0 deletions
diff --git a/test/center_of_gravity.c b/test/center_of_gravity.c
new file mode 100644
index 0000000..ee67df3
--- /dev/null
+++ b/test/center_of_gravity.c
@@ -0,0 +1,17 @@
+#include <math.h>
+#include <stddef.h>
+#include "ts.h"
+
+bool ts_test_center_of_gravity( void )
+{
+	fp_t const x[] = { 1, 2, 3, 4, 5, 6, 7, 8 };
+	fp_t const * const inp[1] = { x };
+
+	/* k=5: windows [1,2,3,4,5], [2,3,4,5,6], [3,4,5,6,7], [4,5,6,7,8]
+	 * COG = 1 - 2*SUM(ix)/((k+1)*SUM(x)) */
+	fp_t const e[] = { -0.22222, -0.16667, -0.13333, -0.11111 };
+	fp_t const * const exp[1] = { e };
+
+	uint_t k = 5;
+	return ts_test(ts_center_of_gravity, ts_center_of_gravity_offset, inp, exp, sizeof( x ) / sizeof( *x ), (ts_constant_t *)&k, &ts_center_of_gravity_p);
+}