allow tests to run on older standard libraries

1 files changed, 33 insertions, 0 deletions

diff --git a/toolsrc/src/vcpkg-test/strings.cpp b/toolsrc/src/vcpkg-test/strings.cpp
new file mode 100644
index 000000000..6b744eee6
--- /dev/null
+++ b/toolsrc/src/vcpkg-test/strings.cpp
@@ -0,0 +1,33 @@
+#include <vcpkg-test/catch.h>
+
+#include <vcpkg/base/strings.h>
+
+#include <cstdint>
+#include <utility>
+#include <vector>
+
+TEST_CASE ("b32 encoding", "[strings]")
+{
+    using u64 = std::uint64_t;
+
+    std::vector<std::pair<std::uint64_t, std::string>> map;
+
+    map.emplace_back(0, "AAAAAAAAAAAAA");
+    map.emplace_back(1, "BAAAAAAAAAAAA");
+
+    map.emplace_back(u64(1) << 32, "AAAAAAEAAAAAA");
+    map.emplace_back((u64(1) << 32) + 1, "BAAAAAEAAAAAA");
+
+    map.emplace_back(0xE4D0'1065'D11E'0229, "JRA4RIXMQAUJO");
+    map.emplace_back(0xA626'FE45'B135'07FF, "77BKTYWI6XJMK");
+    map.emplace_back(0xEE36'D228'0C31'D405, "FAVDDGAFSWN4O");
+    map.emplace_back(0x1405'64E7'FE7E'A88C, "MEK5H774ELBIB");
+    map.emplace_back(0xFFFF'FFFF'FFFF'FFFF, "777777777777P");
+
+    std::string result;
+    for (const auto& pr : map)
+    {
+        result = vcpkg::Strings::b32_encode(pr.first);
+        REQUIRE(vcpkg::Strings::b32_encode(pr.first) == pr.second);
+    }
+}