bat-extras/test/suite/lib_pager.sh

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setup() {
source "${LIB}/pager.sh"
}
use_pager() {
unset BAT_PAGER
export PAGER="$1"
_configure_pager
_detect_pager
}
use_no_pager() {
unset BAT_PAGER
unset PAGER
_configure_pager
_detect_pager
}
use_bat_pager() {
unset PAGER
export BAT_PAGER="$1"
_configure_pager
_detect_pager
}
test:less_detection() {
description "Identify less"
(use_pager "less" && expect_equal "$(pager_name)" "less")
(use_pager "less_but_renamed" && expect_equal "$(pager_name)" "less")
(use_pager "stty" && expect_equal "$(pager_name)" "stty")
}
test:bat_detection() {
description "Ensure bat is replaced with less as pager"
use_pager "bat"
expect_equal "$(pager_name)" "less"
expect array_contains "-R" in "${SCRIPT_PAGER_CMD[@]}"
}
test:less_version() {
description "Identify less version"
(
export MOCK_LESS_VERSION=473
use_pager "less" && expect_equal "$(pager_version)" "473"
)
(
export MOCK_LESS_VERSION=551
use_pager "less" && expect_equal "$(pager_version)" "551"
)
}
test:less_args() {
description "Automatically select appropriate less args"
# When pager is "less".
(
export MOCK_LESS_VERSION=473
use_pager "less"
expect array_contains "-R" in "${SCRIPT_PAGER_CMD[@]}"
expect array_contains "--quit-if-one-screen" in "${SCRIPT_PAGER_CMD[@]}"
expect array_contains "--no-init" in "${SCRIPT_PAGER_CMD[@]}"
)
# When pager is equivalent of "less".
(
export MOCK_LESS_VERSION=551
use_pager "less"
expect array_contains "-R" in "${SCRIPT_PAGER_CMD[@]}"
expect array_contains "--quit-if-one-screen" in "${SCRIPT_PAGER_CMD[@]}"
expect ! array_contains "--no-init" in "${SCRIPT_PAGER_CMD[@]}"
)
}
test:less_args_not_less() {
description "Don't give non-less pagers the less args"
use_pager "not_less"
echo "${SCRIPT_PAGER_CMD[@]}"
expect_equal "${#SCRIPT_PAGER_CMD[@]}" 1
}
test:env_bat_pager() {
description "Check that BAT_PAGER is being used"
use_bat_pager "not_less"
expect_equal "${SCRIPT_PAGER_CMD[0]}" "not_less"
use_bat_pager "not_less but not_more"
expect_equal "${SCRIPT_PAGER_CMD[0]}" "not_less"
expect_equal "${SCRIPT_PAGER_CMD[1]}" "but"
expect_equal "${SCRIPT_PAGER_CMD[2]}" "not_more"
}
test:env_no_pager() {
description "Check that no PAGER or BAT_PAGER defaults to less"
use_no_pager
expect_equal "${SCRIPT_PAGER_CMD[0]}" "less"
expect array_contains "-R" in "${SCRIPT_PAGER_CMD[@]}"
}
test:args_copied_from_pager() {
description "Check that the pager args are correct with PAGER."
use_pager "less --some-argument"
expect_equal "${SCRIPT_PAGER_CMD[0]}" "less"
expect_not_equal "${SCRIPT_PAGER_CMD[1]}" "--some-argument"
}
test:args_copied_from_bat_pager() {
description "Check that the pager args are correct with PAGER."
use_bat_pager "less --some-argument"
assert_equal "${#SCRIPT_PAGER_CMD[@]}" 2
expect_equal "${SCRIPT_PAGER_CMD[0]}" "less"
expect_equal "${SCRIPT_PAGER_CMD[1]}" "--some-argument"
}