Add an optional cppunit dependency for unit tests.

Makefile.am

@@ -1,5 +1,5 @@
 
-SUBDIRS = src deushax monsterz tools art gfx
+SUBDIRS = src test deushax monsterz tools art gfx
 DIST_SUBDIRS = $(SUBDIRS) maps
 
 EXTRA_DIST = bootstrap build-linux build-mingw

configure.ac

@@ -44,6 +44,9 @@ AC_ARG_ENABLE(debug,
 AC_ARG_ENABLE(release,
   [  --enable-release        build final release of the game (default no)])
 
+AC_ARG_ENABLE(cppunit,
+  [  --enable-cppunit        use cppunit for unit tests (autodetected)])
+
 AC_CHECK_HEADERS(stdio.h stdarg.h inttypes.h endian.h stdint.h getopt.h)
 
 if test "${enable_debug}" = "yes"; then
@@ -114,6 +117,12 @@ if test "${ac_cv_my_have_gtkgl}" != "no"; then
 fi
 AM_CONDITIONAL(USE_GTKGL, test "${ac_cv_my_have_gtkgl}" != "no")
 
+
+dnl Use cppunit for unit tests?
+PKG_CHECK_MODULES(CPPUNIT, cppunit, [CPPUNIT="yes"], [CPPUNIT="no"])
+AM_CONDITIONAL(USE_CPPUNIT, test "$CPPUNIT" = "yes")
+
+
 # How to use the Lol Engine inside this tree
 LOL_CFLAGS="$LOL_CFLAGS -I \$(top_srcdir)/src $SDL_CFLAGS"
 LOL_LIBS="$LOL_LIBS $SDL_LIBS"
@@ -129,6 +138,7 @@ AC_SUBST(LOL_LIBS)
 AC_CONFIG_FILES([
   Makefile
   src/Makefile
+  test/Makefile
   monsterz/Makefile
   deushax/Makefile
   tools/Makefile

test/Makefile.am

@@ -0,0 +1,18 @@
+
+AM_CPPFLAGS = -I$(top_srcdir)/src
+
+if USE_CPPUNIT
+cppunit_tests = lol-test
+endif
+
+noinst_PROGRAMS = $(cppunit_tests)
+
+TESTS = $(cppunit_tests)
+
+lol_test_SOURCES = lol-test.cpp matrix.cpp
+lol_test_CXXFLAGS = $(CPPUNIT_CFLAGS)
+lol_test_CPPFLAGS = @LOL_CFLAGS@ @PIPI_CFLAGS@
+lol_test_LDADD = $(CPPUNIT_LIBS)
+lol_test_LDFLAGS = $(top_builddir)/src/liblol.a @LOL_LIBS@ @PIPI_LIBS@
+lol_test_DEPENDENCIES = $(top_builddir)/src/liblol.a
+

test/lol-test.cpp

@@ -0,0 +1,25 @@
+//
+// Lol Engine
+//
+// Copyright: (c) 2010-2011 Sam Hocevar <sam@hocevar.net>
+//   This program is free software; you can redistribute it and/or
+//   modify it under the terms of the Do What The Fuck You Want To
+//   Public License, Version 2, as published by Sam Hocevar. See
+//   http://sam.zoy.org/projects/COPYING.WTFPL for more details.
+//
+
+#if defined HAVE_CONFIG_H
+#   include "config.h"
+#endif
+
+#include <cppunit/TextTestRunner.h>
+#include <cppunit/extensions/TestFactoryRegistry.h>
+
+int main(int argc, char *argv[])
+{
+    CppUnit::TextTestRunner runner;
+    runner.addTest(CppUnit::TestFactoryRegistry::getRegistry().makeTest());
+
+    return !runner.run();
+}
+

test/matrix.cpp

@@ -0,0 +1,53 @@
+//
+// Lol Engine
+//
+// Copyright: (c) 2010-2011 Sam Hocevar <sam@hocevar.net>
+//   This program is free software; you can redistribute it and/or
+//   modify it under the terms of the Do What The Fuck You Want To
+//   Public License, Version 2, as published by Sam Hocevar. See
+//   http://sam.zoy.org/projects/COPYING.WTFPL for more details.
+//
+
+#if defined HAVE_CONFIG_H
+#   include "config.h"
+#endif
+
+#include <cppunit/extensions/HelperMacros.h>
+#include <cppunit/TestCaller.h>
+#include <cppunit/TestCase.h>
+#include <cppunit/TestSuite.h>
+
+#include "core.h"
+
+class MatrixTest : public CppUnit::TestCase
+{
+    CPPUNIT_TEST_SUITE(MatrixTest);
+    CPPUNIT_TEST(test_mat_mul);
+    CPPUNIT_TEST_SUITE_END();
+
+public:
+    MatrixTest() : CppUnit::TestCase("Matrix Test") {}
+
+    void setUp() {}
+
+    void tearDown() {}
+
+    void test_mat_mul()
+    {
+        float4 v0(1.0f, 0.0f, 0.0f, 0.0f);
+        float4 v1(0.0f, 1.0f, 0.0f, 0.0f);
+        float4 v2(0.0f, 0.0f, 1.0f, 0.0f);
+        float4 v3(0.0f, 0.0f, 0.0f, 1.0f);
+        float4x4 m0(v0, v1, v2, v3);
+        float4x4 m1(v0, v1, v2, v3);
+        float4x4 m2 = m0 * m1;
+
+        CPPUNIT_ASSERT(m2[0][0] == 1.0f);
+        CPPUNIT_ASSERT(m2[1][1] == 1.0f);
+        CPPUNIT_ASSERT(m2[2][2] == 1.0f);
+        CPPUNIT_ASSERT(m2[3][3] == 1.0f);
+    }
+};
+
+CPPUNIT_TEST_SUITE_REGISTRATION(MatrixTest);
+