--- a
+++ b/third_party/nucleus/testdata/BUILD
@@ -0,0 +1,14 @@
+package(
+    #default_applicable_licenses = ["//third_party/nucleus:license"],
+    default_visibility = ["//visibility:public"],
+)
+
+licenses(["notice"])
+
+filegroup(
+    name = "testdata",
+    srcs = glob([
+        "*",
+        "*/*",
+    ]),
+)