diff --git a/tests/device.rbc b/tests/device.rbc
index 5d4e70c..d9100fd 100644
--- a/tests/device.rbc
+++ b/tests/device.rbc
@@ -22,6 +22,12 @@
 ### include $(LOCAL_PATH)/include1.mk
 ### PRODUCT_PACKAGES += dev_after
 ### PRODUCT_COPY_FILES += $(call find-copy-subdir-files,audio_platform_info*.xml,device/google/redfin/audio,$(TARGET_COPY_OUT_VENDOR)/etc) xyz
+### $(call add_soong_namespace,NS1)
+### $(call add_soong_config_var_value,NS1,v1,abc)
+### $(call add_soong_config_var_value,NS1,v2,def)
+### $(call add_soong_namespace,NS2)
+### $(call add_soong_config_var_value,NS2,v3,abc)
+### $(call add_soong_config_var_value,NS2,v3,xyz)
 
 load("//build/make/core:product_config.rbc", "rblf")
 load(":part1.rbc", _part1_init = "init")
@@ -40,3 +46,10 @@
   cfg["PRODUCT_PACKAGES"] += ["dev_after"]
   cfg["PRODUCT_COPY_FILES"] += (rblf.find_and_copy("audio_platform_info*.xml", "device/google/redfin/audio", "||VENDOR-PATH-PH||/etc") +
       ["xyz"])
+  rblf.add_soong_config_namespace(g, "NS1")
+  rblf.add_soong_config_var_value(g, "NS1", "v1", "abc")
+  rblf.add_soong_config_var_value(g, "NS1", "v2", "def")
+  rblf.add_soong_config_namespace(g, "NS2")
+  rblf.add_soong_config_var_value(g, "NS2", "v3", "abc")
+  rblf.add_soong_config_var_value(g, "NS2", "v3", "xyz")
+
diff --git a/tests/run.rbc b/tests/run.rbc
index 4cda180..da88886 100644
--- a/tests/run.rbc
+++ b/tests/run.rbc
@@ -63,3 +63,17 @@
     },
     { k:v for k, v in sorted(config.items()) }
 )
+
+ns = globals["$SOONG_CONFIG_NAMESPACES"]
+assert_eq(
+    {
+        "NS1": {
+            "v1": "abc",
+            "v2": "def"
+        },
+        "NS2": {
+            "v3": "xyz"
+        }
+    },
+    {k:v for k, v in sorted(ns.items()) }
+)