diff --git a/testfunctionusage.cpp b/testfunctionusage.cpp
new file mode 100644
index 000000000..06f9af938
--- /dev/null
+++ b/testfunctionusage.cpp
@@ -0,0 +1,77 @@
+/*
+ * c++check - c/c++ syntax checking
+ * Copyright (C) 2007 Daniel Marjamäki
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/
+ */
+
+
+#define UNIT_TESTING
+#include "tokenize.h"
+#include "testsuite.h"
+#include "CheckFunctionUsage.h"
+#include <sstream>
+
+extern std::ostringstream errout;
+
+class TestFunctionUsage : public TestFixture
+{
+public:
+    TestFunctionUsage() : TestFixture("TestFunctionUsage")
+    { }
+
+private:
+
+
+    void run()
+    {
+        TEST_CASE( incondition );
+    }
+
+    void check( const char code[] )
+    {
+        // Tokenize..
+        Tokenizer tokenizer;
+        tokenizer._files.push_back( "test.cpp" );
+        std::istringstream istr(code);
+        tokenizer.TokenizeCode( istr );
+
+        // Clear the error buffer..
+        errout.str("");
+
+        // Check for memory leaks..
+        CheckFunctionUsage checkFunctionUsage(this);
+        checkFunctionUsage.parseTokens( tokenizer );
+        checkFunctionUsage.check();
+    }
+
+    void incondition()
+    {
+        check( "int f1()\n"
+               "{\n"
+               "    f2();\n"
+               "}\n"
+               "\n"
+               "void f2()\n"
+               "{\n"
+               "    if (f1())\n"
+               "    { }\n"
+               "}\n" );
+        std::string err( errout.str() );
+        ASSERT_EQUALS( std::string(""), errout.str() );
+    }
+};
+
+REGISTER_TEST( TestFunctionUsage )
+