1 files changed, 61 insertions, 0 deletions
diff --git a/test/lib/time.c b/test/lib/time.c
new file mode 100644
index 0000000..5c29bbc
--- /dev/null
+++ b/test/lib/time.c
@@ -0,0 +1,61 @@
+#include <test/lib/time.h>
+
+const struct timespec zero = {0,0};
+const struct timespec one_s = {1,0};
+const struct timespec one_ns = {0,1};
+const struct timespec one_s_ns = {1,1};
+
+bool_t test_diff_time(const struct timespec *time1, const struct timespec *time0, double result)
+{
+  double fcall_result = diff_time(time1, time0);
+  if (fcall_result == result) {
+    return TRUE;
+  }
+  return FALSE;
+}
+
+void _TEST_diff_time(bool_t* result, uint16_t* test_count, uint16_t* test_pass)
+{
+  bool_t sub_result;
+  // Test 1: 0-0=0
+  sub_result = test_diff_time(&zero, &zero, 0.0);
+  *result &= sub_result;
+  TEST_RESULT("DIFF_TIME",sub_result, *test_count, (*test_pass));
+
+  // Test 2: 1s-0=1s
+  sub_result = test_diff_time(&one_s, &zero, 1.0);
+  *result &= sub_result;
+  TEST_RESULT("DIFF_TIME",sub_result, *test_count, (*test_pass));
+
+  // Test 3: 1ns-0=1ns
+  sub_result = test_diff_time(&one_ns, &zero, 0.000000001);
+  *result &= sub_result;
+  TEST_RESULT("DIFF_TIME",sub_result, *test_count, (*test_pass));
+
+  // Test 4: 1s1ns-0=1s1ns
+  sub_result = test_diff_time(&one_s_ns, &zero, 1.000000001);
+  *result &= sub_result;
+  TEST_RESULT("DIFF_TIME",sub_result, *test_count, (*test_pass));
+
+  // Test 5: 1s1ns-1ns=1s
+  sub_result = test_diff_time(&one_s_ns, &one_ns, 1.0);
+  *result &= sub_result;
+  TEST_RESULT("DIFF_TIME",sub_result, *test_count, (*test_pass));
+
+  // Test 6: 1s1ns-1s=1ns
+  sub_result = test_diff_time(&one_s_ns, &one_s, 0.000000001);
+  *result &= sub_result;
+  TEST_RESULT("DIFF_TIME",sub_result, *test_count, (*test_pass));
+}
+
+bool_t TEST_lib_time()
+{
+  uint16_t test_count = 0;
+  uint16_t test_pass = 0;
+  bool_t result = TRUE;
+
+  // Testing directory existence
+  _TEST_diff_time(&result, &test_count, &test_pass);
+
+  return test_count == test_pass;
+}