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62 lines
1.5 KiB
C++
62 lines
1.5 KiB
C++
#include <cstring>
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#include <iostream>
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#include <pqxx/transaction>
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#include "test_helpers.hxx"
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using namespace pqxx;
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// Example program for libpqxx. Test binary string functionality.
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namespace
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{
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void test_062()
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{
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connection conn;
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work tx{conn};
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std::string const TestStr{
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"Nasty\n\030Test\n\t String with \200\277 weird bytes "
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"\r\0 and Trailer\\\\\0"};
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tx.exec0("CREATE TEMP TABLE pqxxbin (binfield bytea)");
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std::string const Esc{tx.esc_raw(std::basic_string<std::byte>{
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reinterpret_cast<std::byte const *>(std::data(TestStr)),
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std::size(TestStr)})};
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tx.exec0("INSERT INTO pqxxbin VALUES ('" + Esc + "')");
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result R{tx.exec("SELECT * from pqxxbin")};
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tx.exec0("DELETE FROM pqxxbin");
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auto const B{R.at(0).at(0).as<std::basic_string<std::byte>>()};
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PQXX_CHECK(not std::empty(B), "Binary string became empty in conversion.");
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PQXX_CHECK_EQUAL(
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std::size(B), std::size(TestStr), "Binary string was mangled.");
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std::basic_string<std::byte>::const_iterator c;
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std::basic_string<std::byte>::size_type i;
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for (i = 0, c = std::begin(B); i < std::size(B); ++i, ++c)
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{
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PQXX_CHECK(c != std::end(B), "Premature end to binary string.");
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char const x{TestStr.at(i)}, y{char(B.at(i))}, z{char(std::data(B)[i])};
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PQXX_CHECK_EQUAL(
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std::string(&x, 1), std::string(&y, 1), "Binary string byte changed.");
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PQXX_CHECK_EQUAL(
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std::string(&y, 1), std::string(&z, 1),
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"Inconsistent byte at offset " + to_string(i) + ".");
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}
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}
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PQXX_REGISTER_TEST(test_062);
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} // namespace
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