feat(base58): unfixed bug with double \0 and incorrect real str_size

test/test-base58.cpp

@@ -0,0 +1,35 @@
+#include <utility>
+
+#include <base/base58.hpp>
+#include <base/hex.hpp>
+#include <gtest/gtest.h>
+
+using namespace base58;
+
+std::pair<std::string, std::string> test = {
+    "003812e515df45235c6bcc2233ac9d0c4ebbd781de",
+    "167VUagc755PbQoB7cCTfTPjbQ5Nk6fEuD",
+};
+
+TEST(base58, encodeCheck)
+{
+    EXPECT_EQ(encodeCheck(hex::decode(test.first)), test.second);
+}
+TEST(base58, decodeCheck)
+{
+    EXPECT_EQ(test.first, hex::encode(decodeCheck(test.second)));
+    try
+    {
+        decodeCheck("incorrect");
+    }
+    catch (const std::exception &e)
+    {
+        EXPECT_STREQ(e.what(), "base58::decodeCheck: checksum incorrect");
+    }
+}
+
+int main(int argc, char **argv)
+{
+    testing::InitGoogleTest(&argc, argv);
+    return RUN_ALL_TESTS();
+}