1 files changed, 41 insertions, 0 deletions
diff --git a/tests/wpt/web-platform-tests/common/security-features/tools/util.py b/tests/wpt/web-platform-tests/common/security-features/tools/util.py
new file mode 100644
index 00000000000..77b89769ca2
--- /dev/null
+++ b/tests/wpt/web-platform-tests/common/security-features/tools/util.py
@@ -0,0 +1,41 @@
+from __future__ import print_function
+
+import os, sys, json, re
+
+script_directory = os.path.dirname(os.path.abspath(__file__))
+template_directory = os.path.abspath(os.path.join(script_directory,
+                                                  'template'))
+test_root_directory = os.path.abspath(os.path.join(script_directory,
+                                                   '..', '..', '..'))
+
+
+def get_template(basename):
+    with open(os.path.join(template_directory, basename), "r") as f:
+        return f.read()
+
+
+def write_file(filename, contents):
+    with open(filename, "w") as f:
+        f.write(contents)
+
+
+def read_nth_line(fp, line_number):
+  fp.seek(0)
+  for i, line in enumerate(fp):
+    if (i + 1) == line_number:
+      return line
+
+
+def load_spec_json(path_to_spec):
+    re_error_location = re.compile('line ([0-9]+) column ([0-9]+)')
+    with open(path_to_spec, "r") as f:
+        try:
+          return json.load(f)
+        except ValueError as ex:
+          print(ex.message)
+          match = re_error_location.search(ex.message)
+          if match:
+            line_number, column = int(match.group(1)), int(match.group(2))
+            print(read_nth_line(f, line_number).rstrip())
+            print(" " * (column - 1) + "^")
+          sys.exit(1)