diff --git a/src/input3.c b/src/input3.c
index 617f464..161f2ab 100644
--- a/src/input3.c
+++ b/src/input3.c
@@ -132,7 +132,7 @@ int juncdata(Project *pr)
 		// apply the default demand pattern and append the data
 		if (p == 0) p = findpattern(net, parser->DefPatID);
 		demand_data = create_demand_data(y, p, NULL);
-		if (demand_data == NULL) return 101;
+	    if (demand_data == NULL) return 101;
 
 		append_list(demand_list, &demand_data);
 	}
diff --git a/src/types.h b/src/types.h
index 01b25af..b848238 100755
--- a/src/types.h
+++ b/src/types.h
@@ -339,14 +339,14 @@ typedef struct             // Curve Object
   double    *Y;            // y-values
 } Scurve;
 
-struct Sdemand             // Demand List Item
-{
-  double Base;             // baseline demand
-  int    Pat;              // pattern index
-  char   *Name;            // demand category name
-  struct Sdemand *next;    // next demand list item
-};
-typedef struct Sdemand *Pdemand; // Pointer to demand list
+//struct Sdemand             // Demand List Item
+//{
+//  double Base;             // baseline demand
+//  int    Pat;              // pattern index
+//  char   *Name;            // demand category name
+//  struct Sdemand *next;    // next demand list item
+//};
+//typedef struct Sdemand *Pdemand; // Pointer to demand list
 
 typedef struct             // Energy Usage Object
 {
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index dd9668e..62f6f00 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -27,7 +27,7 @@ add_executable(test_demand_data test_demand_data.cpp
                                 ../src/demand.c
                                 ../src/util/list.c)
 target_include_directories(test_demand_data PUBLIC ../src/ ../src/util/)
-target_link_libraries(test_demand_data ${Boost_LIBRARIES})
+target_link_libraries(test_demand_data ${Boost_LIBRARIES} epanet2)
 add_test(NAME test_demand_data
     COMMAND ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/test_demand_data
     WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/data)
diff --git a/tests/test_demand_data.cpp b/tests/test_demand_data.cpp
index b78964a..7b61ac4 100644
--- a/tests/test_demand_data.cpp
+++ b/tests/test_demand_data.cpp
@@ -15,6 +15,13 @@
 #include <boost/test/unit_test.hpp>
 
 #include "demand.h"
+#include "epanet2_2.h"
+
+
+#define DATA_PATH_NET1 "./net1.inp"
+#define DATA_PATH_TMP "./tmp.inp"
+#define DATA_PATH_RPT "./test.rpt"
+#define DATA_PATH_OUT "./test.out"
 
 
 boost::test_tools::predicate_result check_string(std::string test, std::string ref)
@@ -62,12 +69,11 @@ struct Fixture {
 		_data = create_demand_data(100.0, 1, "CUB_SCOUT_BASE_CAMP");
 		
 		append_list(dlist, &_data);
-
 	}
 	~Fixture() {
 		delete_list(dlist);
 	}
-	void *_data;
+	demand_data_t *_data;
 	list_t *dlist;
 };
 
@@ -134,5 +140,22 @@ BOOST_FIXTURE_TEST_CASE(test_convert_demand, Fixture)
 	BOOST_TEST(demand == 6.31, boost::test_tools::tolerance(0.01));
 }
 
+BOOST_AUTO_TEST_CASE(test_openclose)
+{
+	int error;
+
+	EN_Project ph = NULL;
+
+	EN_createproject(&ph);
+
+	error = EN_open(ph, DATA_PATH_NET1, DATA_PATH_RPT, DATA_PATH_OUT);
+	BOOST_REQUIRE(error == 0);
+
+	error = EN_close(ph);
+	BOOST_REQUIRE(error == 0);
+
+	EN_deleteproject(&ph);
+}
+
 
 BOOST_AUTO_TEST_SUITE_END()