diff --git a/mk2rbc/mk2rbc_test.go b/mk2rbc/mk2rbc_test.go
index ebaae28..46212ee 100644
--- a/mk2rbc/mk2rbc_test.go
+++ b/mk2rbc/mk2rbc_test.go
@@ -669,6 +669,7 @@
 $(call add_soong_config_namespace,snsconfig)
 $(call add_soong_config_var_value,snsconfig,imagetype,odm_image)
 PRODUCT_COPY_FILES := $(call copy-files,$(wildcard foo*.mk),etc)
+PRODUCT_COPY_FILES := $(call product-copy-files-by-pattern,from/%,to/%,a b c)
 `,
 		expected: `load("//build/make/core:product_config.rbc", "rblf")
 
@@ -689,6 +690,7 @@
   rblf.add_soong_config_namespace(g, "snsconfig")
   rblf.add_soong_config_var_value(g, "snsconfig", "imagetype", "odm_image")
   cfg["PRODUCT_COPY_FILES"] = rblf.copy_files(rblf.expand_wildcard("foo*.mk"), "etc")
+  cfg["PRODUCT_COPY_FILES"] = rblf.product_copy_files_by_pattern("from/%", "to/%", "a b c")
 `,
 	},
 	{