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// file : tests/timestamp/driver.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2017 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#include <time.h> // tzset()
#include <chrono>
#include <locale>
#include <clocale>
#include <cassert>
#include <sstream>
#include <iomanip>
#include <system_error>
#include <libbutl/timestamp.hxx>
using namespace std;
using namespace butl;
// Parse the input using the format string. Print the resulting time with the
// same format string, ensure the output matches the input.
//
static bool
parse (const char* in, const char* fmt, bool local, string out)
{
if (out.empty ())
out = in;
try
{
const char* e;
timestamp t (from_string (in, fmt, local, &e));
ostringstream o;
if (!to_stream (o, t, fmt, false, local))
return false;
return o.str () + e == out;
}
catch (...)
{
return false;
}
}
static bool
parse (const char* in, const char* fmt, const string& out = "")
{
return parse (in, fmt, true, out) && parse (in, fmt, false, out);
}
static bool
fail (const char* in, const char* fmt)
{
try
{
from_string (in, fmt, true);
return false;
}
catch (const system_error&)
{
return true;
}
}
// Convert nanoseconds to string according to the butl::duration period.
//
static string
ns (unsigned long long t)
{
duration d (chrono::duration_cast<duration> (chrono::nanoseconds (t)));
chrono::nanoseconds n (chrono::duration_cast<chrono::nanoseconds> (d));
ostringstream o;
o.fill ('0');
o << setw (9) << n.count ();
return o.str ();
}
int
main ()
{
tzset (); // To use butl::to_stream() later on.
// Invalid %[].
//
assert (fail ("Apr 08 19:31:10 2016", "%b %d %H:%M:%S%["));
assert (fail ("Apr 08 19:31:10 2016", "%b %d %H:%M:%S%[."));
assert (fail ("Apr 08 19:31:10 2016", "%b %d %H:%M:%S%[.U"));
assert (fail ("Apr 08 19:31:10 2016", "%b %d %H:%M:%S%[.A]"));
assert (fail ("Apr 08 19:31:10 2016", "%d %H:%M:%S%[.U] %Y"));
assert (fail ("2016-10-20 11:12:13.123456789", "%Y-%m-%d %H:%M:%S%[N]"));
// Invalid fraction of a second.
//
assert (fail ("Apr 08 19:31:10. 2016", "%b %d %H:%M:%S%[.U] %Y"));
assert (fail ("Apr 08 19:31:10.1 2016", "%b %d %H:%M:%S%[.M] %Y"));
assert (fail ("Apr 08 19:31:10.12 2016", "%b %d %H:%M:%S%[.M] %Y"));
assert (fail ("Apr 08 19:31:10.", "%b %d %H:%M:%S%[.U] %Y"));
assert (fail ("Apr 08 19:31:10.1", "%b %d %H:%M:%S%[.M] %Y"));
assert (fail ("Apr 08 19:31:10.12", "%b %d %H:%M:%S%[.M] %Y"));
// Input is not fully parsed.
//
assert (fail (
"Feb 21 19:31:10.123456789 2016 GMT", "%b %d %H:%M:%S%[.N] %Y"));
// Invalid input (%[] unrelated).
//
assert (fail ("Apr 08 19:31:10.123456789 ABC", "%b %d %H:%M:%S%[.N] %Y"));
// This doesn't work in VC15 because their implementation of std::get_time()
// has a bug. Due to this bug std::get_time() parses the input
// "Apr 19:31:10 2016" for the format "%b %d %H:%M:%S %Y" as if the input were
// "Apr 19 00:31:10 2016".
//
#if !defined(_MSC_VER) || _MSC_VER > 1910
assert (fail ("Apr 19:31:10 2016", "%b %d %H:%M:%S %Y"));
assert (fail (":31 2016", "%H:%M %Y"));
#endif
assert (fail ("Opr 08 19:31:10 2016", "%b %d %H:%M:%S %Y"));
// Parse valid input with a valid format.
//
assert (parse (
"Apr 18 19:31:10 2016", "%b %d %H:%M:%S %Y", "Apr 18 19:31:10 2016"));
assert (parse ("Apr 08 19:31:10 2016", "%b %d %H:%M:%S %Y"));
assert (parse ("2016-04-08 19:31:10", "%Y-%m-%d %H:%M:%S"));
assert (parse ("ABC=Apr 18 19:31:10 2016 ABC", "ABC=%b %d %H:%M:%S %Y"));
assert (parse ("ABC=2016-04-08 19:31:10 ABC", "ABC=%Y-%m-%d %H:%M:%S"));
assert (parse ("Feb 11 19:31:10 2016 GMT", "%b %d %H:%M:%S%[.N] %Y"));
assert (parse ("2016-02-11 19:31:10 GMT", "%Y-%m-%d %H:%M:%S%[.N]"));
assert (parse ("Feb 21 19:31:10.384902285 2016 GMT",
"%b %d %H:%M:%S%[.N] %Y",
"Feb 21 19:31:10." + ns (384902285) + " 2016 GMT"));
assert (parse ("2016-02-21 19:31:10.384902285 GMT",
"%Y-%m-%d %H:%M:%S%[.N]",
"2016-02-21 19:31:10." + ns (384902285) + " GMT"));
assert (parse ("Feb 21 19:31:10 .384902285 2016 GMT",
"%b %d %H:%M:%S %[.N] %Y",
"Feb 21 19:31:10 ." + ns (384902285) + " 2016 GMT"));
assert (parse ("2016-02-21 19:31:10 .384902285 GMT",
"%Y-%m-%d %H:%M:%S %[.N]",
"2016-02-21 19:31:10 ." + ns (384902285) + " GMT"));
assert (parse (
"2016-02-21 19:31:10 .384902285 GMT",
"%Y-%m-%d %H:%M:%S %[.N]",
"2016-02-21 19:31:10 ." + ns (384902285) + " GMT"));
assert (parse (
"2016-02-21 19:31:10 .384902285 GMT",
"%Y-%m-%d %H:%M:%S %[.N]",
"2016-02-21 19:31:10 ." + ns (384902285) + " GMT"));
assert (parse ("Feb 21 19:31:10 .384902285NS 2016 GMT",
"%b %d %H:%M:%S %[.N]NS %Y",
"Feb 21 19:31:10 ." + ns (384902285) + "NS 2016 GMT"));
assert (parse ("2016-02-21 19:31:10 .384902285NS GMT",
"%Y-%m-%d %H:%M:%S %[.N]NS",
"2016-02-21 19:31:10 ." + ns (384902285) + "NS GMT"));
assert (parse (".384902285 Feb 21 19:31:10 2016",
"%[.N] %b %d %H:%M:%S %Y",
"." + ns (384902285) + " Feb 21 19:31:10 2016"));
assert (parse (".384902285 2016-02-21 19:31:10",
"%[.N] %Y-%m-%d %H:%M:%S",
"." + ns (384902285) + " 2016-02-21 19:31:10"));
assert (parse (".3849022852016-02-21 19:31:10",
"%[.N]%Y-%m-%d %H:%M:%S",
"." + ns (384902285) + "2016-02-21 19:31:10"));
// setlocale (LC_ALL, "");
// setlocale (LC_ALL, "de_DE.utf-8");
// setlocale (LC_ALL, "de-de");
// setlocale (LC_ALL, "German_Germany.1252");
// locale::global (locale (""));
// locale::global (locale ("de_DE.utf-8"));
/*
assert (parse ("Mai 11 19:31:10 2016 GMT", "%b %d %H:%M:%S%[.N] %Y"));
locale::global (locale ("C"));
*/
// @@ When debuging strptime() fallback implementation compiled with GCC
// 5.3.1, the following asserts will fail due to bugs in implementation
// of std::get_time() manipulator. So need to be commented out.
//
assert (fail ("Apr 08 19:31:10 2016", "%b %d %H:%M:%S %Y %"));
// Error is not detected on FreeBSD 11 with Clang/libc++ 3.8.0.
//
#ifndef __FreeBSD__
assert (fail ("Apr 08 19:31:10", "%b %d %H:%M:%S %Y"));
#endif
assert (parse (
"Apr 8 19:31:10 2016", "%b %d %H:%M:%S %Y", "Apr 08 19:31:10 2016"));
}
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