如何使用 bats 测试 read -p
How to test `read -p` using bats
我有一个要获取的实用程序脚本,其中包含两个提示用户输入的函数; anykey
和 yesno
.
如何测试提示? $output
.
中未显示提示文本
此外,如何强制 yesno
中的 while 循环从测试中跳出 while 循环?
function anykey() { read -n 1 -r -s -p "${1:-Press any key to continue ...}"; }
function yesno() {
local -u yn
while true; do
# shellcheck disable=SC2162
read -N1 -p "${1:-Yes or no?} " yn
case $yn in
Y | N)
printf '%s' "$yn"
return
;;
Q)
warn 'Exiting...'
exit 1
;;
*)
warn 'Please enter a Y or a N'
;;
esac
done
}
我的 utility.bats
文件中有以下内容:
#------------------------------------------------------------
# test yesno
if [[ -z "$(type -t yesno)" ]]; then
echo "yesno not defined after sourcing utility" >&2
exit 1
fi
@test 'yesno function exists' {
run type -t yesno
[ "$output" == 'function' ]
}
@test 'yesno accepts y' {
run yesno <<< 'y'
[[ "$status" == 0 ]]
[[ "$output" == 'Y' ]]
}
@test 'yesno accepts Y' {
run yesno <<< 'Y'
[[ "$status" == 0 ]]
[[ "$output" == 'Y' ]]
}
@test 'yesno accepts n' {
run yesno <<< 'n'
[[ "$status" == 0 ]]
[[ "$output" == 'N' ]]
}
@test 'yesno accepts N' {
run yesno <<< 'N'
[[ "$status" == 0 ]]
[[ "$output" == 'N' ]]
}
@test 'yesno accepts q' {
run yesno <<< 'q'
[[ "$status" == 1 ]]
[[ "$output" == 'Exiting...' ]]
}
@test 'yesno accepts Q' {
run yesno <<< 'Q'
[[ "$status" == 1 ]]
[[ "$output" == 'Exiting...' ]]
}
@test 'yesno rejects x' {
run yesno <<< 'x'
[[ "$output" == 'Please enter a Y or a N' ]]
}
除了最后一个 yesno rejects x
之外的所有测试似乎都在正常工作。由于 while true
循环,最后一个挂起。如何在测试中模拟多个键盘输入?
编辑:warn 函数很简单:
warn() { printf '%s\n' "$*" >&2; }
对我来说似乎有用的是提供足够的答案以摆脱循环:
@test 'yesno rejects x, then accepts N' {
run yesno <<< "xN"
[[ "${lines[0]}" == 'Please enter a Y or a N' ]]
[[ "${lines[1]}" == 'N' ]]
[[ "${lines[3]}" == '' ]]
}
@test 'yesno rejects x and space, then accepts Y' {
run yesno <<< 'x Y'
[[ "${lines[0]}" == 'Please enter a Y or a N' ]]
[[ "${lines[1]}" == 'Please enter a Y or a N' ]]
[[ "${lines[2]}" == 'Y' ]]
[[ "${lines[3]}" == '' ]]
}
我有一个要获取的实用程序脚本,其中包含两个提示用户输入的函数; anykey
和 yesno
.
如何测试提示? $output
.
此外,如何强制 yesno
中的 while 循环从测试中跳出 while 循环?
function anykey() { read -n 1 -r -s -p "${1:-Press any key to continue ...}"; }
function yesno() {
local -u yn
while true; do
# shellcheck disable=SC2162
read -N1 -p "${1:-Yes or no?} " yn
case $yn in
Y | N)
printf '%s' "$yn"
return
;;
Q)
warn 'Exiting...'
exit 1
;;
*)
warn 'Please enter a Y or a N'
;;
esac
done
}
我的 utility.bats
文件中有以下内容:
#------------------------------------------------------------
# test yesno
if [[ -z "$(type -t yesno)" ]]; then
echo "yesno not defined after sourcing utility" >&2
exit 1
fi
@test 'yesno function exists' {
run type -t yesno
[ "$output" == 'function' ]
}
@test 'yesno accepts y' {
run yesno <<< 'y'
[[ "$status" == 0 ]]
[[ "$output" == 'Y' ]]
}
@test 'yesno accepts Y' {
run yesno <<< 'Y'
[[ "$status" == 0 ]]
[[ "$output" == 'Y' ]]
}
@test 'yesno accepts n' {
run yesno <<< 'n'
[[ "$status" == 0 ]]
[[ "$output" == 'N' ]]
}
@test 'yesno accepts N' {
run yesno <<< 'N'
[[ "$status" == 0 ]]
[[ "$output" == 'N' ]]
}
@test 'yesno accepts q' {
run yesno <<< 'q'
[[ "$status" == 1 ]]
[[ "$output" == 'Exiting...' ]]
}
@test 'yesno accepts Q' {
run yesno <<< 'Q'
[[ "$status" == 1 ]]
[[ "$output" == 'Exiting...' ]]
}
@test 'yesno rejects x' {
run yesno <<< 'x'
[[ "$output" == 'Please enter a Y or a N' ]]
}
除了最后一个 yesno rejects x
之外的所有测试似乎都在正常工作。由于 while true
循环,最后一个挂起。如何在测试中模拟多个键盘输入?
编辑:warn 函数很简单:
warn() { printf '%s\n' "$*" >&2; }
对我来说似乎有用的是提供足够的答案以摆脱循环:
@test 'yesno rejects x, then accepts N' {
run yesno <<< "xN"
[[ "${lines[0]}" == 'Please enter a Y or a N' ]]
[[ "${lines[1]}" == 'N' ]]
[[ "${lines[3]}" == '' ]]
}
@test 'yesno rejects x and space, then accepts Y' {
run yesno <<< 'x Y'
[[ "${lines[0]}" == 'Please enter a Y or a N' ]]
[[ "${lines[1]}" == 'Please enter a Y or a N' ]]
[[ "${lines[2]}" == 'Y' ]]
[[ "${lines[3]}" == '' ]]
}