1 files changed, 19 insertions, 0 deletions
diff --git a/test/reversal.c b/test/reversal.c
new file mode 100644
index 0000000..ccc8021
--- /dev/null
+++ b/test/reversal.c
@@ -0,0 +1,19 @@
+#include <math.h>
+#include <stddef.h>
+#include "ts.h"
+
+bool ts_test_reversal( void )
+{
+	/* close: 10, 12, 11, 13, 10, 12 */
+	/* i=2: c=11, prev=12, prev2=10. 11<12 && 12>10 => -1 (top reversal) */
+	/* i=3: c=13, prev=11, prev2=12. 13>11 && 11<12 => +1 (bottom reversal) */
+	/* i=4: c=10, prev=13, prev2=11. 10<13 && 13>11 => -1 (top reversal) */
+	/* i=5: c=12, prev=10, prev2=13. 12>10 && 10<13 => +1 (bottom reversal) */
+	fp_t const x[] = { 10, 12, 11, 13, 10, 12 };
+
+	fp_t const * const inp[1] = { x };
+	fp_t const e[] = { -1, 1, -1, 1 };
+	fp_t const * const exp[1] = { e };
+
+	return ts_test(ts_reversal, ts_reversal_offset, inp, exp, sizeof( x ) / sizeof( *x ), (ts_constant_t *)NULL, &ts_reversal_p);
+}