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From ce027f67d29066f188891c94447e50c12168a693 Mon Sep 17 00:00:00 2001
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From: Yu Watanabe <watanabe.yu+github@gmail.com>
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Date: Tue, 14 Jun 2022 09:02:00 +0900
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Subject: [PATCH] test: support debian/ubuntu specific timezone config file
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(cherry picked from commit aab61a8c990a54703ae70ca951d0502860010267)
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Related: #2087652
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---
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 test/units/testsuite-45.sh | 24 ++++++++++++++++++++++++
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 1 file changed, 24 insertions(+)
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diff --git a/test/units/testsuite-45.sh b/test/units/testsuite-45.sh
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index 2069d2437f..d0f9dd9461 100755
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--- a/test/units/testsuite-45.sh
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+++ b/test/units/testsuite-45.sh
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@@ -7,9 +7,24 @@ set -o pipefail
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 # shellcheck source=test/units/assert.sh
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 . "$(dirname "$0")"/assert.sh
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+restore_timezone() {
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+    if [[ -f /tmp/timezone.bak ]]; then
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+        mv /tmp/timezone.bak /etc/timezone
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+    else
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+        rm -f /etc/timezone
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+    fi
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+}
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+
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 test_timezone() {
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     local ORIG_TZ=
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+    # Debian/Ubuntu specific file
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+    if [[ -f /etc/timezone ]]; then
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+        mv /etc/timezone /tmp/timezone.bak
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+    fi
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+
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+    trap restore_timezone EXIT
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+
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     if [[ -L /etc/localtime ]]; then
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         ORIG_TZ=$(readlink /etc/localtime | sed 's#^.*zoneinfo/##')
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         echo "original tz: $ORIG_TZ"
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@@ -21,13 +36,22 @@ test_timezone() {
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     echo 'change timezone'
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     assert_eq "$(timedatectl --no-pager set-timezone Europe/Kiev 2>&1)" ""
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     assert_eq "$(readlink /etc/localtime | sed 's#^.*zoneinfo/##')" "Europe/Kiev"
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+    if [[ -f /etc/timezone ]]; then
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+        assert_eq "$(cat /etc/timezone)" "Europe/Kiev"
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+    fi
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     assert_in "Time zone: Europe/Kiev \(EEST, \+0[0-9]00\)" "$(timedatectl)"
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     if [[ -n "$ORIG_TZ" ]]; then
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         echo 'reset timezone to original'
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         assert_eq "$(timedatectl set-timezone "$ORIG_TZ" 2>&1)" ""
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         assert_eq "$(readlink /etc/localtime | sed 's#^.*zoneinfo/##')" "$ORIG_TZ"
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+        if [[ -f /etc/timezone ]]; then
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+            assert_eq "$(cat /etc/timezone)" "$ORIG_TZ"
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+        fi
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     fi
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+
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+    restore_timezone
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+    trap - EXIT
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 }
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 restore_adjtime() {