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// -*- compile-command: "./test_single_testcase.sh TTestCompiler" -*-
{
Copyright 2017-2023 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 some Pascal compiler (FPC, Delphi) stuff. These tests are independent from CGE. }
unit TestCompiler;
{ Needed to define EXTENDED_EQUALS_DOUBLE on some platforms/compilers. }
{$I ../../../src/common_includes/castleconf.inc}
interface
uses
Classes, SysUtils, CastleTester;
type
TTestCompiler = class(TCastleTestCase)
procedure TestIs;
procedure TestSinglePrecision;
procedure TestCTypesSizes;
procedure TestSizes;
procedure TestPackedOpenArray;
end;
implementation
uses CTypes, CastleUtils, CastleVectors;
type
TFruit = class
end;
TApple = class(TFruit)
end;
TWerewolf = class
end;
procedure TTestCompiler.TestIs;
var
O: TObject;
begin
O := TWerewolf.Create;
try
AssertTrue(O is TWerewolf);
AssertFalse(O is TFruit);
AssertFalse(O is TApple);
finally FreeAndNil(O) end;
O := TApple.Create;
try
AssertFalse(O is TWerewolf);
AssertTrue(O is TFruit);
AssertTrue(O is TApple);
finally FreeAndNil(O) end;
O := nil;
try
AssertFalse(O is TWerewolf);
AssertFalse(O is TFruit);
AssertFalse(O is TApple);
finally FreeAndNil(O) end;
end;
procedure TTestCompiler.TestSinglePrecision;
var
I: Integer;
begin
for I := -32000 to 32000 do
AssertEquals(I, Round(Single(I)));
end;
procedure TTestCompiler.TestCTypesSizes;
begin
AssertEquals(1, SizeOf(CInt8));
AssertEquals(1, SizeOf(CUInt8));
AssertEquals(2, SizeOf(CInt16));
AssertEquals(2, SizeOf(CUInt16));
AssertEquals(4, SizeOf(CInt32));
AssertEquals(4, SizeOf(CUInt32));
AssertEquals(8, SizeOf(CInt64));
AssertEquals(8, SizeOf(CUInt64));
end;
procedure TTestCompiler.TestSizes;
begin
AssertEquals(1, SizeOf(Byte));
AssertEquals(1, SizeOf(ShortInt));
AssertEquals(2, SizeOf(Word));
AssertEquals(2, SizeOf(SmallInt));
AssertEquals(4, SizeOf(Int32));
AssertEquals(4, SizeOf(UInt32));
AssertEquals(8, SizeOf(Int64));
AssertEquals(8, SizeOf(UInt64));
AssertEquals(8, SizeOf(QWord));
{ Both in FPC and Delphi, Integer/Cardinal remained 4-byte (even though
in old days the Integer/Cardinal were documented as potentially
platform-dependent size).
See (Delphi): https://docwiki.embarcadero.com/RADStudio/Sydney/en/Simple_Types_(Delphi) }
AssertEquals(4, SizeOf(Integer));
AssertEquals(4, SizeOf(Cardinal));
AssertEquals(4, SizeOf(Single));
AssertEquals(8, SizeOf(Double));
AssertEquals(
{$if defined(EXTENDED_EQUALS_DOUBLE)} 8
{$elseif defined(EXTENDED_EQUALS_LONG_DOUBLE)} 16
{$else} 10
{$endif}, SizeOf(Extended));
end;
type
{ TCastleRenderUnlitMesh implementation assumes that "array of UInt16",
"array of TVector4" parameters are packed arrays.
But in Delphi we cannot declare them as such.
So let's check ar runtime they are packed. }
TCastleRenderUnlitMeshTest = class
public
procedure SetIndexes(const Indexes: array of UInt16);
procedure SetVertexes(const Vertexes: array of TVector4;
const UsageDynamic: Boolean);
end;
procedure TCastleRenderUnlitMeshTest.SetIndexes(const Indexes: array of UInt16);
var
I: Integer;
begin
{$I norqcheckbegin.inc}
for I := 0 to 100 do
Check(PtrUInt(@Indexes[I + 1]) - PtrUInt(@Indexes[I]) = SizeOf(UInt16));
{$I norqcheckend.inc}
end;
procedure TCastleRenderUnlitMeshTest.SetVertexes(const Vertexes: array of TVector4;
const UsageDynamic: Boolean);
var
I: Integer;
begin
Check(High(Vertexes) = 3);
Check(TVector4.PerfectlyEquals(Vertexes[0], Vector4(1, 1.2, 1.3, 1.4)));
{$I norqcheckbegin.inc}
for I := 0 to 100 do
Check(PtrUInt(@Vertexes[I + 1]) - PtrUInt(@Vertexes[I]) = SizeOf(TVector4));
{$I norqcheckend.inc}
end;
procedure TTestCompiler.TestPackedOpenArray;
var
Mesh: TCastleRenderUnlitMeshTest;
begin
Mesh := TCastleRenderUnlitMeshTest.Create;
try
Mesh.SetIndexes([1, 2, 3, 4]);
Mesh.SetVertexes([
Vector4(1, 1.2, 1.3, 1.4),
Vector4(2, 2.2, 2.3, 2.4),
Vector4(3, 3.2, 3.3, 3.4),
Vector4(4, 4.2, 4.3, 4.4)
], true);
finally FreeAndNil(Mesh) end;
end;
initialization
RegisterTest(TTestCompiler);
end.
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