File: test001.cxx

package info (click to toggle)
libpqxx 4.0.1%2Bdfsg3-8
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 16,012 kB
  • ctags: 9,469
  • sloc: sh: 11,289; cpp: 10,801; xml: 1,256; makefile: 287; ansic: 195; python: 159
file content (47 lines) | stat: -rw-r--r-- 1,385 bytes parent folder | download | duplicates (3)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
#include <iostream>

#include "test_helpers.hxx"

using namespace PGSTD;
using namespace pqxx;


namespace
{

// Simple test program for libpqxx.  Open connection to database, start
// a transaction, and perform a query inside it.
void test_001(transaction_base &trans)
{
  cout << "Connected to database." << endl
       << "Backend version: " << trans.conn().server_version() << endl
       << "Protocol version: " << trans.conn().protocol_version() << endl;

  // Close old transaction.
  trans.abort();

  // Begin a transaction acting on our current connection.  Give it a human-
  // readable name so the library can include it in error messages.
  work T(trans.conn(), "test1");

  // Perform a query on the database, storing result tuples in R.
  result R( T.exec("SELECT * FROM pg_tables") );

  // We're expecting to find some tables...
  PQXX_CHECK(!R.empty(), "No tables found.  Cannot test.");

  // Process each successive result tuple
  for (result::const_iterator c = R.begin(); c != R.end(); ++c)
  {
    // Dump tuple number and column 0 value to cout.  Read the value using
    // as(), which converts the field to the same type as the default value
    // you give it (or returns the default value if the field is null).
    cout << '\t' << to_string(c.num()) << '\t' << c[0].as(string()) << endl;
  }

  T.commit();
}

} // namespace

PQXX_REGISTER_TEST(test_001)