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// -*- compile-command: "./test_single_testcase.sh TTestCastleTimeUtils" -*-
{
Copyright 2016-2021 Michalis Kamburelis.
This file is part of "Castle Game Engine".
"Castle Game Engine" is free software; see the file COPYING.txt,
included in this distribution, for details about the copyright.
"Castle Game Engine" is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
----------------------------------------------------------------------------
}
{ Test CastleTimeUtils unit. }
unit TestCastleTimeUtils;
interface
uses CastleTester;
type
TTestCastleTimeUtils = class(TCastleTestCase)
published
procedure TestGetTickCount64;
end;
implementation
uses SysUtils, Classes, Math, CastleTimeUtils;
{ TTestCastleTimeUtils ---------------------------------------------------------- }
{$warnings off} // knowingly using deprecated, to check they are working
procedure TTestCastleTimeUtils.TestGetTickCount64;
var
G1, G2: TMilisecTime;
begin
G1 := CastleGetTickCount64;
Sleep(1000);
G2 := CastleGetTickCount64;
{ It should be that G2 is larger than G1 by 1000 milisecons.
To allow wild imprecision, we check something larger.
Also, to work even when 32-bit GetTickCount wraps,
use TimeTickSecondLater instead of MilisecTimesSubtract. }
// Writeln(MilisecTimesSubtract(G2, G1));
// Writeln(G2 - G1);
AssertTrue(TimeTickSecondLater(G1, G2, 100));
AssertFalse(TimeTickSecondLater(G1, G2, 10000));
{ test on prepared values }
AssertTrue(TimeTickSecondLater(1000, 2001, 1000));
AssertFalse(TimeTickSecondLater(1000, 1999, 1000));
{ test on prepared values simulating wrap with 32-bit GetTickCount }
AssertTrue(TimeTickSecondLater(High(UInt32) - 500, 501, 1000));
AssertFalse(TimeTickSecondLater(High(UInt32) - 500, 499, 1000));
end;
{$warnings on}
initialization
RegisterTest(TTestCastleTimeUtils);
end.
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