From 1ccbe2bbb62cf9ef10bb113f0ff9d24672ed5721 Mon Sep 17 00:00:00 2001
From: nillerusr <nillerusr@gmail.com>
Date: Sun, 23 Apr 2023 23:45:09 +0300
Subject: [PATCH] unitests: add mathlib test

---
 .../mathlibtest/mathlib_performance_test.cpp  | 41 ++++++++++++++++++
 unittests/mathlibtest/mathlib_test.cpp        | 43 +++++++++++++++++++
 unittests/mathlibtest/wscript                 | 39 +++++++++++++++++
 wscript                                       |  2 +
 4 files changed, 125 insertions(+)
 create mode 100644 unittests/mathlibtest/mathlib_performance_test.cpp
 create mode 100644 unittests/mathlibtest/mathlib_test.cpp
 create mode 100755 unittests/mathlibtest/wscript

diff --git a/unittests/mathlibtest/mathlib_performance_test.cpp b/unittests/mathlibtest/mathlib_performance_test.cpp
new file mode 100644
index 00000000..6058ed25
--- /dev/null
+++ b/unittests/mathlibtest/mathlib_performance_test.cpp
@@ -0,0 +1,41 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: Unit test program for CommandBuffer
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#include "unitlib/unitlib.h"
+#include "tier1/CommandBuffer.h"
+#include "tier1/strtools.h"
+#include "tier0/platform.h"
+#include "tier0/fasttimer.h"
+
+
+DEFINE_TESTSUITE( MathlibTestSuite )
+
+DEFINE_TESTCASE( MathlibTestSSE, MathlibTestSuite )
+{
+	CFastTimer timer;
+	timer.Start();
+
+	float sum = 0.f;
+
+	for( float a = 0.f; a <= M_PI; a += 0.000001f )
+		sum += sinf(a);
+
+	timer.End();
+
+	Msg("cos Cycles: %llu\n", timer.GetDuration().GetLongCycles());
+	Msg("cos sum - %f\n", sum);
+
+	timer.Start();
+
+	for( float a = 0.f; a <= M_PI; a += 0.000001f )
+		sum += FastCos(a);
+
+	timer.End();
+
+	Msg("ssecos Cycles: %llu\n", timer.GetDuration().GetLongCycles());
+	Msg("ssecos sum - %f\n", sum);
+}
diff --git a/unittests/mathlibtest/mathlib_test.cpp b/unittests/mathlibtest/mathlib_test.cpp
new file mode 100644
index 00000000..36d01847
--- /dev/null
+++ b/unittests/mathlibtest/mathlib_test.cpp
@@ -0,0 +1,43 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: Unit test program for testing of mathlib
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#include "unitlib/unitlib.h"
+#include "filesystem.h"
+#include "tier2/tier2.h"
+#include "mathlib/mathlib.h"
+
+//-----------------------------------------------------------------------------
+// Used to connect/disconnect the DLL
+//-----------------------------------------------------------------------------
+class CTier2TestAppSystem : public CTier2AppSystem< IAppSystem >
+{
+	typedef CTier2AppSystem< IAppSystem > BaseClass;
+
+public:
+	virtual bool Connect( CreateInterfaceFn factory ) 
+	{
+		if ( !BaseClass::Connect( factory ) )
+			return false;
+
+		if ( !g_pFullFileSystem )
+			return false;
+		return true; 
+	}
+
+	virtual InitReturnVal_t Init()
+	{
+		MathLib_Init( 2.2f, 2.2f, 0.0f, 2.0f );
+
+		InitReturnVal_t nRetVal = BaseClass::Init();
+		if ( nRetVal != INIT_OK )
+			return nRetVal;
+
+		return INIT_OK;
+	}
+};
+
+USE_UNITTEST_APPSYSTEM( CTier2TestAppSystem )
diff --git a/unittests/mathlibtest/wscript b/unittests/mathlibtest/wscript
new file mode 100755
index 00000000..5015ee71
--- /dev/null
+++ b/unittests/mathlibtest/wscript
@@ -0,0 +1,39 @@
+#! /usr/bin/env python
+# encoding: utf-8
+
+from waflib import Utils
+import os
+
+top = '.'
+PROJECT_NAME = 'mathlibtest'
+
+def options(opt):
+	return
+
+def configure(conf):
+	conf.define('TIER2TEST_EXPORTS', 1)
+
+def build(bld):
+	source = ['mathlib_performance_test.cpp', 'mathlib_test.cpp']
+	includes = ['../../public', '../../public/tier0']
+	defines = []
+	libs = ['tier0', 'tier1','tier2', 'mathlib', 'unitlib']
+
+	if bld.env.DEST_OS != 'win32':
+		libs += [ 'DL', 'LOG' ]
+	else:
+		libs += ['USER32', 'SHELL32']
+
+	install_path = bld.env.TESTDIR
+	bld.shlib(
+		source   = source,
+		target   = PROJECT_NAME,
+		name     = PROJECT_NAME,
+		features = 'c cxx',
+		includes = includes,
+		defines  = defines,
+		use      = libs,
+		install_path = install_path,
+		subsystem = bld.env.MSVC_SUBSYSTEM,
+		idx      = bld.get_taskgen_count()
+	)
diff --git a/wscript b/wscript
index ef760ccc..7441473c 100644
--- a/wscript
+++ b/wscript
@@ -51,6 +51,7 @@ projects={
 		'launcher',
 		'launcher_main',
 		'materialsystem',
+#		'materialsystem/shaderapiempty',
 		'materialsystem/shaderapidx9',
 		'materialsystem/shaderlib',
 		'materialsystem/stdshaders',
@@ -94,6 +95,7 @@ projects={
 		'unittests/tier1test',
 		'unittests/tier2test',
 		'unittests/tier3test',
+		'unittests/mathlibtest',
 		'utils/unittest'
 	],
 	'dedicated': [