#include "lix/libutil/references.hh"

#include <gtest/gtest.h>

namespace nix {

TEST(references, scan)
{
    std::string hash1 = "dc04vv14dak1c1r48qa0m23vr9jy8sm0";
    std::string hash2 = "zc842j0rz61mjsp3h3wp5ly71ak6qgdn";

    {
        RefScanSink scanner(StringSet{hash1});
        auto s = "foobar";
        scanner(s);
        ASSERT_EQ(scanner.getResult(), StringSet{});
    }

    {
        RefScanSink scanner(StringSet{hash1});
        auto s = "foobar" + hash1 + "xyzzy";
        scanner(s);
        ASSERT_EQ(scanner.getResult(), StringSet{hash1});
    }

    {
        RefScanSink scanner(StringSet{hash1, hash2});
        auto s = "foobar" + hash1 + "xyzzy" + hash2;
        scanner(((std::string_view) s).substr(0, 10));
        scanner(((std::string_view) s).substr(10, 5));
        scanner(((std::string_view) s).substr(15, 5));
        scanner(((std::string_view) s).substr(20));
        ASSERT_EQ(scanner.getResult(), StringSet({hash1, hash2}));
    }

    {
        RefScanSink scanner(StringSet{hash1, hash2});
        auto s = "foobar" + hash1 + "xyzzy" + hash2;
        for (auto & i : s)
            scanner(std::string(1, i));
        ASSERT_EQ(scanner.getResult(), StringSet({hash1, hash2}));
    }
}

}