add some UUID support

binding-tests/uuid.cpp

@@ -0,0 +1,38 @@
+#include <string.h>
+#include "doctest.h"
+#include "taskchampion.h"
+
+TEST_CASE("creating UUIDs does not crash") {
+    Uuid u1 = tc_uuid_new_v4();
+    Uuid u2 = tc_uuid_nil();
+}
+
+TEST_CASE("converting UUIDs to string works") {
+    Uuid u2 = tc_uuid_nil();
+    REQUIRE(TC_UUID_STRING_BYTES == 36);
+
+    char u2str[TC_UUID_STRING_BYTES];
+    tc_uuid_to_str(u2, u2str);
+    CHECK(strncmp(u2str, "00000000-0000-0000-0000-000000000000", TC_UUID_STRING_BYTES) == 0);
+}
+
+TEST_CASE("converting UUIDs from string works") {
+    Uuid u;
+    char ustr[TC_UUID_STRING_BYTES] = "fdc314b7-f938-4845-b8d1-95716e4eb762";
+    CHECK(tc_uuid_from_str(ustr, &u));
+    CHECK(u._0[0] == 0xfd);
+    // .. if these two are correct, probably it worked :)
+    CHECK(u._0[15] == 0x62);
+}
+
+TEST_CASE("converting invalid UUIDs from string fails as expected") {
+    Uuid u;
+    char ustr[TC_UUID_STRING_BYTES] = "not-a-valid-uuid";
+    CHECK(!tc_uuid_from_str(ustr, &u));
+}
+
+TEST_CASE("converting invalid UTF-8 UUIDs from string fails as expected") {
+    Uuid u;
+    char ustr[TC_UUID_STRING_BYTES] = "\xf0\x28\x8c\xbc";
+    CHECK(!tc_uuid_from_str(ustr, &u));
+}