diff --git a/src/tests/test_config.cpp b/src/tests/test_config.cpp
index db6fdef76632..d59c58379700 100644
--- a/src/tests/test_config.cpp
+++ b/src/tests/test_config.cpp
@@ -18,6 +18,7 @@
 #include <cmath>
 
 #include "config.hpp"
+#include "variable_info.hpp"
 
 BOOST_AUTO_TEST_SUITE ( test_config )
 
@@ -172,4 +173,58 @@ BOOST_AUTO_TEST_CASE ( test_config_attribute_value )
 	BOOST_CHECK_EQUAL(cc["x"], c["x"]);
 }
 
+BOOST_AUTO_TEST_CASE ( test_variable_info )
+{
+	config c;
+	{
+		variable_access_const access("", c);
+		// We dotn allow empty keys
+		BOOST_CHECK_THROW (access.as_scalar(), invalid_variablename_exception);
+	}
+	{
+		variable_access_const access("some_non_existent.", c);
+		// We dotn allow empty keys
+		BOOST_CHECK_THROW (access.as_scalar(), invalid_variablename_exception);
+	}
+	{
+		variable_access_const access("some_non_existent[0]value", c);
+		// We expect '.' after ']'
+		BOOST_CHECK_THROW (access.as_scalar(), invalid_variablename_exception);
+	}
+	{
+		variable_access_const access("some_non_existent", c);
+		// we return empty be default
+		BOOST_CHECK (!access.exists_as_container());
+		BOOST_CHECK_EQUAL (access.as_container(), config());
+		BOOST_CHECK (!access.exists_as_attribute());
+		BOOST_CHECK_EQUAL (access.as_scalar(), config::attribute_value());
+	}
+	{
+		variable_access_const access("a.b[0].c[1].d.e.f[2]", c);
+		// we return empty be default
+		BOOST_CHECK (!access.exists_as_container());
+		BOOST_CHECK_EQUAL (access.as_container(), config());
+		// Explicit indexes can never be an attribute
+		BOOST_CHECK_THROW (access.as_scalar(), invalid_variablename_exception);
+	}
+	BOOST_CHECK (c.empty());
+	{
+		config c2;
+		variable_access_create access("a.b[0].c[1].d.e.f[2].g", c2);
+		access.as_scalar() = 84;
+		BOOST_CHECK_EQUAL (variable_access_const("a.length", c2).as_scalar(), 1);
+		BOOST_CHECK_EQUAL (variable_access_const("a.b.length", c2).as_scalar(), 1);
+		BOOST_CHECK_EQUAL (variable_access_const("a.b.c.length", c2).as_scalar(), 2);
+		BOOST_CHECK_EQUAL (variable_access_const("a.b.c[1].d.e.f.length", c2).as_scalar(), 3);
+		// we setted g as a scalar
+		BOOST_CHECK_EQUAL (variable_access_const("a.b.c[1].d.e.f[2].g.length", c2).as_scalar(), 0);
+		BOOST_CHECK_EQUAL (variable_access_const("a.b.c[1].d.e.f[2].g", c2).as_scalar(), 84);
+	}
+	{
+		config c2;
+		variable_access_throw access("a.b[9].c", c2);
+		BOOST_CHECK_THROW(access.as_scalar(), invalid_variablename_exception);
+	}
+}
+
 BOOST_AUTO_TEST_SUITE_END()