git rev-parse --parseopt tests: add more usagestr tests
Add tests for the "usagestr" passed to parse-options.c
usage_with_options_internal() through cmd_parseopt().
These test for edge cases in the existing behavior related to the
"--parseopt" interface doing its own line-splitting with
strbuf_getline(), and the native C interface expecting and potentially
needing to handle newlines within the strings in the array it
accepts. The results are probably something that wasn't anticipated,
but let's make sure we stay backwards compatible with it.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/t/t1502-rev-parse-parseopt.sh b/t/t1502-rev-parse-parseopt.sh
index b29563f..284fe18 100755
--- a/t/t1502-rev-parse-parseopt.sh
+++ b/t/t1502-rev-parse-parseopt.sh
@@ -282,4 +282,58 @@
test_cmp expect output
'
+test_expect_success 'test --parseopt help output: "wrapped" options normal "or:" lines' '
+ sed -e "s/^|//" >spec <<-\EOF &&
+ |cmd [--some-option]
+ | [--another-option]
+ |cmd [--yet-another-option]
+ |--
+ |h,help show the help
+ EOF
+
+ sed -e "s/^|//" >expect <<-\END_EXPECT &&
+ |cat <<\EOF
+ |usage: cmd [--some-option]
+ | or: [--another-option]
+ | or: cmd [--yet-another-option]
+ |
+ | -h, --help show the help
+ |
+ |EOF
+ END_EXPECT
+
+ test_must_fail git rev-parse --parseopt -- -h >out <spec >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'test --parseopt help output: multi-line blurb after empty line' '
+ sed -e "s/^|//" >spec <<-\EOF &&
+ |cmd [--some-option]
+ | [--another-option]
+ |
+ |multi
+ |line
+ |blurb
+ |--
+ |h,help show the help
+ EOF
+
+ sed -e "s/^|//" >expect <<-\END_EXPECT &&
+ |cat <<\EOF
+ |usage: cmd [--some-option]
+ | or: [--another-option]
+ |
+ | multi
+ | line
+ | blurb
+ |
+ | -h, --help show the help
+ |
+ |EOF
+ END_EXPECT
+
+ test_must_fail git rev-parse --parseopt -- -h >out <spec >actual &&
+ test_cmp expect actual
+'
+
test_done
