Files
git/t/lib-terminal.sh
Jonathan Nieder 996621eb4d test_terminal: catch use without TTY prerequisite
It is easy to forget to declare the TTY prerequisite when
writing tests on a system where it would always be satisfied
(because IO::Pty is installed; see v1.7.3-rc0~33^2, 2010-08-16
for example).  Automatically detect this problem so there is
no need to remember.

	test_terminal: need to declare TTY prerequisite
	test_must_fail: command not found: test_terminal echo hi

test_terminal returns status 127 in this case to simulate
not being available.

Also replace the SIMPLEPAGERTTY prerequisite on one test with
"SIMPLEPAGER,TTY", since (1) the latter is supported now and
(2) the prerequisite detection relies on the TTY prereq being
explicitly declared.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-10-18 16:20:19 -07:00

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#!/bin/sh
test_expect_success 'set up terminal for tests' '
if test -t 1 && test -t 2
then
>have_tty
elif
test_have_prereq PERL &&
"$PERL_PATH" "$TEST_DIRECTORY"/test-terminal.perl \
sh -c "test -t 1 && test -t 2"
then
>test_terminal_works
fi
'
if test -e have_tty
then
test_terminal_() { "$@"; }
test_set_prereq TTY
elif test -e test_terminal_works
then
test_terminal_() {
"$PERL_PATH" "$TEST_DIRECTORY"/test-terminal.perl "$@"
}
test_set_prereq TTY
else
say "# no usable terminal, so skipping some tests"
fi
test_terminal () {
if ! test_declared_prereq TTY
then
echo >&2 'test_terminal: need to declare TTY prerequisite'
return 127
fi
test_terminal_ "$@"
}