Do not compile tests of AWS and GSC if they are not enabled

Author: dzenanz

test/CMakeLists.txt

@@ -79,11 +79,17 @@ include_directories(${GTEST_INCLUDE_DIRS} SYSTEM)
 set(XTENSOR_ZARR_TESTS
     main.cpp
     test_zarr.cpp
-    test_gcs.cpp
-    test_aws.cpp
     test_gdal.cpp
 )
 
+if(${storage_client_FOUND})
+  list(APPEND XTENSOR_ZARR_TESTS test_gcs.cpp)
+endif()
+
+if(${AWSSDK_FOUND})
+  list(APPEND XTENSOR_ZARR_TESTS test_aws.cpp)
+endif()
+
 add_executable(test_xtensor_zarr ${XTENSOR_ZARR_TESTS} ${XTENSOR_ZARR_HEADERS})
 if(DOWNLOAD_GTEST OR GTEST_SRC_DIR)
     add_dependencies(test_xtensor_zarr gtest_main)