diff --git a/tests/lib/c_lib/testcase.yaml b/tests/lib/c_lib/testcase.yaml
index 90313614d1..eb42925958 100644
--- a/tests/lib/c_lib/testcase.yaml
+++ b/tests/lib/c_lib/testcase.yaml
@@ -38,3 +38,18 @@ tests:
     extra_configs:
       - CONFIG_MINIMAL_LIBC=y
       - CONFIG_MINIMAL_LIBC_STRING_ERROR_TABLE=n
+  libraries.libc.picolibc.module:
+    filter: CONFIG_ZEPHYR_PICOLIBC_MODULE
+    tags: picolibc
+    ignore_faults: true
+    extra_configs:
+      - CONFIG_PICOLIBC=y
+      - CONFIG_PICOLIBC_USE_MODULE=y
+  libraries.libc.picolibc.notls:
+    filter: CONFIG_ZEPHYR_PICOLIBC_MODULE
+    tags: picolibc
+    ignore_faults: true
+    extra_configs:
+      - CONFIG_PICOLIBC=y
+      - CONFIG_PICOLIBC_USE_MODULE=y
+      - CONFIG_THREAD_LOCAL_STORAGE=n