Tab completion for commands

Change-Id: Ia38120da7b45cb75effcb2c93eee148419c2fa09
diff --git a/CMakeLists.txt b/CMakeLists.txt
index c03cb47..5656ee8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -175,6 +175,7 @@
     target_include_directories(test_sysrepo PRIVATE ${PROJECT_SOURCE_DIR}/tests/mock)
     cli_test(utils)
     cli_test(path_completion)
+    cli_test(command_completion)
 endif()
 
 if(WITH_DOCS)