From 5fa1daa708fb60f48b17a85e3619d9daee17cf95 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1=C5=A1=20Zemanovi=C4=8D?= <tomas@heliax.dev>
Date: Thu, 23 Mar 2023 08:45:45 +0000
Subject: [PATCH] scripts: add a helper to repeat e2e test

---
 scripts/repeat-e2e-test.sh | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100755 scripts/repeat-e2e-test.sh

diff --git a/scripts/repeat-e2e-test.sh b/scripts/repeat-e2e-test.sh
new file mode 100755
index 0000000000..3257e631da
--- /dev/null
+++ b/scripts/repeat-e2e-test.sh
@@ -0,0 +1,29 @@
+#!/bin/sh
+# Run an e2e test at most n times, exit at first failure.
+# This can be handy for testing of non-deterministic issues that are tricky to
+# reproduce.
+#
+# The first arg is the max number of repetitions and second is the exact name 
+# of the test.
+#
+# Usage example:
+# $ scripts/repeat-e2e-test.sh 10 e2e::ledger_tests::run_ledger
+#
+# Adapted from https://gitlab.com/tezos/tezos/-/blob/master/tests_python/scripts/repeat_test.sh
+
+NUM=$1
+TEST=$2
+# Thanks internet https://stackoverflow.com/a/4774063/3210255
+SCRIPTPATH="$( cd -- "$(dirname "$0")" >/dev/null 2>&1 ; pwd -P )"
+NIGHTLY=$(cat "$SCRIPTPATH"/../rust-nightly-version)
+
+for i in $(seq 1 "$NUM")
+do
+    echo "Execution $i/$NUM"
+    if ! RUST_BACKTRACE=1 NAMADA_E2E_KEEP_TEMP=true NAMADA_E2E_DEBUG=true cargo "+$NIGHTLY" test "$TEST" -Z unstable-options -- --exact --test-threads=1 --nocapture; then
+        exit 1
+    fi
+done
+exit 0
+
+