Add test

Author: faximan

examples/bzlmod/other_module/other_module/pkg/BUILD.bazel

@@ -1,5 +1,6 @@
 load("@rules_python//python:py_binary.bzl", "py_binary")
 load("@rules_python//python:py_library.bzl", "py_library")
+load("@rules_python//python/zipapp:py_zipapp_binary.bzl", "py_zipapp_binary")
 
 py_library(
     name = "lib",
@@ -26,4 +27,13 @@ py_binary(
     ],
 )
 
+# This is used for regression testing runfiles paths in submodules.
+# https://github.com/bazel-contrib/rules_python/issues/3563.
+py_zipapp_binary(
+    name = "bin_zipapp",
+    testonly = True,
+    binary = ":bin",
+    visibility = ["//visibility:public"],
+)
+
 exports_files(["data/data.txt"])

examples/bzlmod/tests/other_module/BUILD.bazel

@@ -5,10 +5,18 @@
 # in the root module.
 
 load("@bazel_skylib//rules:build_test.bzl", "build_test")
+load("@rules_python//python:py_test.bzl", "py_test")
 
 build_test(
     name = "other_module_bin_build_test",
     targets = [
         "@our_other_module//other_module/pkg:bin",
     ],
 )
+
+py_test(
+    name = "other_module_import_test",
+    srcs = ["other_module_import_test.py"],
+    data = ["@our_other_module//other_module/pkg:bin_zipapp"],
+    env = {"ZIPAPP_PATH": "$(location @our_other_module//other_module/pkg:bin_zipapp)"},
+)

examples/bzlmod/tests/other_module/other_module_import_test.py

@@ -0,0 +1,22 @@
+"""Regression test for https://github.com/bazel-contrib/rules_python/issues/3563"""
+import os
+import subprocess
+import sys
+
+def main():
+    # The rlocation path for the bin_zipapp. It is in the "our_other_module" repository.
+    zipapp_path = os.environ.get("ZIPAPP_PATH")
+    print(f"Running bin_zipapp at: {zipapp_path}")
+
+    result = subprocess.run([zipapp_path], capture_output=True, text=True)
+    print("--- bin_zippapp stdout ---")
+    print(result.stdout)
+    print("--- bin_zippapp stderr ---")
+    print(result.stderr)
+
+    if result.returncode != 0:
+        print(f"bin_zippapp failed with return code {result.returncode}")
+        sys.exit(result.returncode)
+
+if __name__ == "__main__":
+    main()