Revert "Remove unused test data files"
This reverts commit ef24980e667debd0cb8f1f26218c452bacbbe084.
diff --git a/tests/data_files/server1.crt b/tests/data_files/server1.crt
new file mode 100644
index 0000000..dfc92b3
--- /dev/null
+++ b/tests/data_files/server1.crt
@@ -0,0 +1,20 @@
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