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-rw-r--r--spec/support/shared_examples/lib/gitlab/regex_shared_examples.rb8
1 files changed, 8 insertions, 0 deletions
diff --git a/spec/support/shared_examples/lib/gitlab/regex_shared_examples.rb b/spec/support/shared_examples/lib/gitlab/regex_shared_examples.rb
new file mode 100644
index 00000000000..150741c6344
--- /dev/null
+++ b/spec/support/shared_examples/lib/gitlab/regex_shared_examples.rb
@@ -0,0 +1,8 @@
+# frozen_string_literal: true
+
+RSpec.shared_examples 'regex rejecting path traversal' do
+ it { is_expected.not_to match('a../b') }
+ it { is_expected.not_to match('a..%2fb') }
+ it { is_expected.not_to match('a%2e%2e%2fb') }
+ it { is_expected.not_to match('a%2e%2e/b') }
+end