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#!/bin/bash
#
# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# The one runnable check for mail-notify.sh. No framework: it sources the
# script as a library and asserts on the pure functions, the ones that take
# text and print text. Nothing here calls notmuch, dunstify or inotify, which
# is why it runs in milliseconds and needs no mail to arrive.
#
# Usage: ./test-mail-notify.sh (exit 0 = all passed)
set -u
MAIL_NOTIFY_LIB=1 . "$(dirname "$0")/mail-notify.sh"
pass=0
fail=0
# Compares two strings and reports. Multi-line values are printed with their
# newlines intact, because half the assertions here are about line structure.
check() {
local name="$1" want="$2" got="$3"
if [[ "$want" == "$got" ]]; then
pass=$((pass + 1))
else
fail=$((fail + 1))
printf 'FAIL: %s\n want: %s\n got: %s\n' "$name" "$want" "$got"
fi
}
check "library guard does not run main" "loaded" "loaded"
# A config with the two traps in it: a key containing dots, and a folder
# value containing a bracket. Both are real shapes from qtmaildir.conf, with
# placeholder names.
read -r -d '' fixture <<'EOF'
[general]
theme = dark
[account.simple]
label = Simple
color = #112233
[account.provider-first.last]
folder = [Gmail]/Bozze
label = Dotted
color = #445566
[account.nolabel]
color = #778899
[ui]
label = NotAnAccount
EOF
check "keys run to the bracket, not the first dot" \
"simple provider-first.last nolabel" \
"$(parse_accounts <<<"$fixture" | cut -f1 | tr '\n' ' ' | sed 's/ $//')"
check "a bracket in a value does not end the section" \
"Dotted" \
"$(parse_accounts <<<"$fixture" | awk -F'\t' '$1=="provider-first.last"{print $2}')"
check "a missing label falls back to the key" \
"nolabel" \
"$(parse_accounts <<<"$fixture" | awk -F'\t' '$1=="nolabel"{print $2}')"
check "a non-account section is not an account" \
"" \
"$(parse_accounts <<<"$fixture" | awk -F'\t' '$1=="ui"{print $2}')"
# The shape notmuch search --format=json actually returns, trimmed to the two
# fields the body uses.
rows_json='[
{"authors":"Alice Example","subject":"First subject"},
{"authors":"Bob Example","subject":"Second subject"},
{"authors":"Carol Example","subject":"Third subject"}
]'
check "a body lists author and subject per row" \
"• Alice Example — First subject
• Bob Example — Second subject
• Carol Example — Third subject" \
"$(build_body "$rows_json" 3)"
check "a batch bigger than the rows shown is elided" \
"• Alice Example — First subject
• Bob Example — Second subject
• Carol Example — Third subject
+7 more" \
"$(build_body "$rows_json" 10)"
check "markup characters are escaped, not rendered" \
"• A & B — <script>" \
"$(build_body '[{"authors":"A & B","subject":"<script>"}]' 1)"
check "a missing subject says so rather than printing nothing" \
"• Alice Example — (no subject)" \
"$(build_body '[{"authors":"Alice Example","subject":null}]' 1)"
check "malformed json yields an empty body rather than an error" \
"" \
"$(build_body 'not json at all' 1 2>/dev/null)"
# A scratch state file, removed at exit. Never the real one: that is the
# user's live notification position, and a test must not move it.
tmpstate="$(mktemp)"
trap 'rm -f "$tmpstate"' EXIT
STATE="$tmpstate"
rm -f "$tmpstate"
check "a missing state file reports no previous revision" \
"" "$(read_prev_rev "uuid-a")"
write_state "uuid-a" 500
check "a revision written is a revision read back" \
"500" "$(read_prev_rev "uuid-a")"
check "a different database UUID discards the revision" \
"" "$(read_prev_rev "uuid-b")"
printf 'uuid-a garbage\n' > "$tmpstate"
check "an unparseable state file reports no previous revision" \
"" "$(read_prev_rev "uuid-a")"
write_state "uuid-a" 600
check "a rewrite replaces rather than appends" \
"1" "$(wc -l < "$tmpstate")"
printf '\n%d passed, %d failed\n' "$pass" "$fail"
[[ "$fail" -eq 0 ]]
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