First Commit

2025-11-19 16:23:45 +07:00
commit dbdc5bcc4a
1791 changed files with 489451 additions and 0 deletions
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+#include <pqxx/connection>
+#include <pqxx/nontransaction>
+#include <pqxx/robusttransaction>
+#include <pqxx/transactor>
+
+#include "test_helpers.hxx"
+
+using namespace pqxx;
+
+
+// Test program for libpqxx.  Verify abort behaviour of RobustTransaction.
+//
+// The program will attempt to add an entry to a table called "pqxxevents",
+// with a key column called "year"--and then abort the change.
+namespace
+{
+// Let's take a boring year that is not going to be in the "pqxxevents" table
+constexpr long BoringYear{1977};
+
+
+// Count events and specifically events occurring in Boring Year, leaving the
+// former count in the result pair's first member, and the latter in second.
+std::pair<int, int> count_events(connection &conn, std::string const &table)
+{
+  nontransaction tx{conn};
+  std::string const count_query{"SELECT count(*) FROM " + table};
+  return std::make_pair(
+    tx.query_value<int>(count_query),
+    tx.query_value<int>(count_query + " WHERE year=" + to_string(BoringYear)));
+}
+
+
+struct deliberate_error : std::exception
+{};
+
+
+void test_018()
+{
+  connection conn;
+  {
+    work tx{conn};
+    test::create_pqxxevents(tx);
+    tx.commit();
+  }
+
+  std::string const Table{"pqxxevents"};
+
+  auto const Before{
+    perform([&conn, &Table] { return count_events(conn, Table); })};
+  PQXX_CHECK_EQUAL(
+    Before.second, 0,
+    "Already have event for " + to_string(BoringYear) + ", cannot run.");
+
+  {
+    quiet_errorhandler d{conn};
+    PQXX_CHECK_THROWS(
+      perform([&conn, Table] {
+        robusttransaction<serializable> tx{conn};
+        tx.exec0(
+          "INSERT INTO " + Table + " VALUES (" + to_string(BoringYear) +
+          ", '" + tx.esc("yawn") + "')");
+
+        throw deliberate_error();
+      }),
+      deliberate_error,
+      "Not getting expected exception from failing transactor.");
+  }
+
+  auto const After{
+    perform([&conn, &Table] { return count_events(conn, Table); })};
+
+  PQXX_CHECK_EQUAL(After.first, Before.first, "Event count changed.");
+  PQXX_CHECK_EQUAL(
+    After.second, Before.second,
+    "Event count for " + to_string(BoringYear) + " changed.");
+}
+
+
+PQXX_REGISTER_TEST(test_018);
+} // namespace