1 files changed, 51 insertions, 0 deletions

diff --git a/toxcore/util_test.cc b/toxcore/util_test.cc
new file mode 100644
index 00000000..541aa61f
--- /dev/null
+++ b/toxcore/util_test.cc
@@ -0,0 +1,51 @@
+#include "util.h"
+
+#include "crypto_core.h"
+
+#include <gtest/gtest.h>
+
+TEST(Util, UnixTimeIncreasesOverTime) {
+  unix_time_update();
+  uint64_t const start = unix_time();
+
+  while (start == unix_time()) {
+    unix_time_update();
+  }
+
+  uint64_t const end = unix_time();
+  EXPECT_GT(end, start);
+}
+
+TEST(Util, IsTimeout) {
+  uint64_t const start = unix_time();
+  EXPECT_FALSE(is_timeout(start, 1));
+
+  while (start == unix_time()) {
+    unix_time_update();
+  }
+
+  EXPECT_TRUE(is_timeout(start, 1));
+}
+
+TEST(Util, TwoRandomIdsAreNotEqual) {
+  uint8_t pk1[CRYPTO_PUBLIC_KEY_SIZE];
+  uint8_t sk1[CRYPTO_SECRET_KEY_SIZE];
+  uint8_t pk2[CRYPTO_PUBLIC_KEY_SIZE];
+  uint8_t sk2[CRYPTO_SECRET_KEY_SIZE];
+
+  crypto_new_keypair(pk1, sk1);
+  crypto_new_keypair(pk2, sk2);
+
+  EXPECT_FALSE(id_equal(pk1, pk2));
+}
+
+TEST(Util, IdCopyMakesKeysEqual) {
+  uint8_t pk1[CRYPTO_PUBLIC_KEY_SIZE];
+  uint8_t sk1[CRYPTO_SECRET_KEY_SIZE];
+  uint8_t pk2[CRYPTO_PUBLIC_KEY_SIZE] = {0};
+
+  crypto_new_keypair(pk1, sk1);
+  id_copy(pk2, pk1);
+
+  EXPECT_TRUE(id_equal(pk1, pk2));
+}