1 files changed, 55 insertions, 0 deletions
diff --git a/test_unit.c b/test_unit.c
new file mode 100644
index 0000000..dc7de3e
--- /dev/null
+++ b/test_unit.c
@@ -0,0 +1,55 @@
+#include <assert.h>
+#include <stdio.h>
+
+#include "unit.h"
+
+
+#define EPSILON (1e-7)
+
+#define test(got, want) { \
+	if (got < want-EPSILON || got > want+EPSILON) { \
+		fprintf(stderr, "got %lf; want %lf\n", got, want); \
+		assert(got == want); \
+	} \
+}
+
+
+void
+test_rad_per_sec(void) {
+	test(rad_per_sec(123.456), 123.456);
+}
+
+void
+test_deg_per_sec(void) {
+	test(deg_per_sec(123.456), 2.15471367888);
+}
+
+void
+test_rpm(void) {
+	test(rpm(123.456), 12.92828207328);
+}
+
+void
+test_as_rad_per_sec(void) {
+	test(as_rad_per_sec(rad_per_sec(123.456)), 123.456);
+}
+
+void
+test_as_deg_per_sec(void) {
+	test(as_deg_per_sec(deg_per_sec(123.456)), 123.456);
+}
+
+void
+test_as_rpm(void) {
+	test(as_rpm(rpm(123.456)), 123.456);
+}
+
+int
+main(void) {
+	test_rad_per_sec();
+	test_deg_per_sec();
+	test_rpm();
+	test_as_rad_per_sec();
+	test_as_deg_per_sec();
+	test_as_rpm();
+}