diff --git a/src/lib/spinel/CMakeLists.txt b/src/lib/spinel/CMakeLists.txt
index 9e8339768..0e41c8798 100644
--- a/src/lib/spinel/CMakeLists.txt
+++ b/src/lib/spinel/CMakeLists.txt
@@ -85,10 +85,12 @@ target_link_libraries(openthread-spinel-rcp
         ot-config
 )
 
-add_executable(ot-test-spinel
-    spinel.c
-)
-target_compile_definitions(ot-test-spinel
-    PRIVATE -DSPINEL_SELF_TEST=1 -D_GNU_SOURCE
-)
-add_test(NAME ot-test-spinel COMMAND ot-test-spinel)
+if(BUILD_TESTING)
+    add_executable(ot-test-spinel
+        spinel.c
+    )
+    target_compile_definitions(ot-test-spinel
+        PRIVATE -DSPINEL_SELF_TEST=1 -D_GNU_SOURCE
+    )
+    add_test(NAME ot-test-spinel COMMAND ot-test-spinel)
+endif()
diff --git a/src/lib/url/CMakeLists.txt b/src/lib/url/CMakeLists.txt
index 8dd0f2fd0..0ed677bc1 100644
--- a/src/lib/url/CMakeLists.txt
+++ b/src/lib/url/CMakeLists.txt
@@ -32,13 +32,15 @@ add_library(openthread-url EXCLUDE_FROM_ALL
 
 target_link_libraries(openthread-url PRIVATE ot-config)
 
-add_executable(ot-test-url
-    url.cpp
-)
-target_compile_definitions(ot-test-url
-    PRIVATE -DSELF_TEST=1
-)
-target_link_libraries(ot-test-url
-    PRIVATE ot-config
-)
-add_test(NAME ot-test-url COMMAND ot-test-url)
+if(BUILD_TESTING)
+    add_executable(ot-test-url
+        url.cpp
+    )
+    target_compile_definitions(ot-test-url
+        PRIVATE -DSELF_TEST=1
+    )
+    target_link_libraries(ot-test-url
+        PRIVATE ot-config
+    )
+    add_test(NAME ot-test-url COMMAND ot-test-url)
+endif()