Merge pull request #367 from apache/cleanup

minor cleanup
diff --git a/common/test/CMakeLists.txt b/common/test/CMakeLists.txt
index 3d2c8c8..1927d26 100644
--- a/common/test/CMakeLists.txt
+++ b/common/test/CMakeLists.txt
@@ -74,7 +74,7 @@
 # now the integration test part
 add_executable(integration_test)
 
-target_link_libraries(integration_test cpc fi hll kll req sampling theta tuple common_test_lib)
+target_link_libraries(integration_test count cpc density fi hll kll req sampling theta tuple common_test_lib)
 
 set_target_properties(integration_test PROPERTIES
   CXX_STANDARD 11
diff --git a/common/test/integration_test.cpp b/common/test/integration_test.cpp
index 1e01bd6..c734b93 100644
--- a/common/test/integration_test.cpp
+++ b/common/test/integration_test.cpp
@@ -19,8 +19,10 @@
 
 #include <catch2/catch.hpp>
 
+#include "count_min.hpp"
 #include "cpc_sketch.hpp"
 #include "cpc_union.hpp"
+#include "density_sketch.hpp"
 #include "frequent_items_sketch.hpp"
 #include "hll.hpp"
 #include "kll_sketch.hpp"
@@ -48,9 +50,13 @@
 using tuple_intersection_float = tuple_intersection<float, subtracting_intersection_policy<float>>;
 
 TEST_CASE("integration: declare all sketches", "[integration]") {
+  count_min_sketch<double> cm(5, 128);
+
   cpc_sketch cpc(12);
   cpc_union cpc_u(12);
 
+  density_sketch<double> ds(32, 3);
+
   frequent_items_sketch<std::string> fi(100);
 
   hll_sketch hll(13);