1 files changed, 41 insertions, 0 deletions
diff --git a/tests/run-make/rustdoc-map-file/validate_json.py b/tests/run-make/rustdoc-map-file/validate_json.py
new file mode 100755
index 000000000..5c14c90b7
--- /dev/null
+++ b/tests/run-make/rustdoc-map-file/validate_json.py
@@ -0,0 +1,41 @@
+#!/usr/bin/env python
+
+import os
+import sys
+import json
+
+
+def find_redirect_map_file(folder, errors):
+    for root, dirs, files in os.walk(folder):
+        for name in files:
+            if not name.endswith("redirect-map.json"):
+                continue
+            with open(os.path.join(root, name)) as f:
+                data = json.load(f)
+            with open("expected.json") as f:
+                expected = json.load(f)
+            for key in expected:
+                if expected[key] != data.get(key):
+                    errors.append("Expected `{}` for key `{}`, found: `{}`".format(
+                        expected[key], key, data.get(key)))
+                else:
+                    del data[key]
+            for key in data:
+                errors.append("Extra data not expected: key: `{}`, data: `{}`".format(
+                    key, data[key]))
+            return True
+    return False
+
+
+if len(sys.argv) != 2:
+    print("Expected doc directory to check!")
+    sys.exit(1)
+
+errors = []
+if not find_redirect_map_file(sys.argv[1], errors):
+    print("Didn't find the map file in `{}`...".format(sys.argv[1]))
+    sys.exit(1)
+for err in errors:
+    print("=> {}".format(err))
+if len(errors) != 0:
+    sys.exit(1)