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#!/usr/bin/env bats
#
# This suite is dedicated to calculating BATS_ROOT when going through various
# permutations of symlinks. It was inspired by the report in issue #113 that the
# calculation was broken on CentOS, where /bin is symlinked to /usr/bin.
#
# The basic test environment is (all paths relative to BATS_TEST_TMPDIR):
#
# - /bin is a relative symlink to /usr/bin, exercising the symlink resolution of
# the `bats` parent directory (i.e. "${0%/*}")
# - /usr/bin/bats is an absolute symlink to /opt/bats-core/bin/bats, exercising
# the symlink resolution of the `bats` executable itself (i.e. "${0##*/}")
load test_helper
# bats file_tags=dep:install_sh
setup() {
# give each test their own tmpdir to allow for parallelization without interference
# shellcheck disable=SC2103,SC2164
cd "$BATS_TEST_TMPDIR"
PATH_TO_INSTALL_SHELL="${BATS_TEST_DIRNAME%/*}/install.sh"
mkdir -p {usr/bin,opt/bats-core}
ls -lR .
"$PATH_TO_INSTALL_SHELL" "opt/bats-core"
ln -s "usr/bin" "bin"
if [[ ! -L "bin" ]]; then
# shellcheck disable=SC2103,SC2164
cd - >/dev/null
skip "symbolic links aren't functional on OSTYPE=$OSTYPE"
fi
ln -s "$BATS_TEST_TMPDIR/opt/bats-core/bin/bats" \
"$BATS_TEST_TMPDIR/usr/bin/bats"
# shellcheck disable=SC2103,SC2164
cd - >/dev/null
}
@test "#113: set BATS_ROOT when /bin is a symlink to /usr/bin" {
reentrant_run "$BATS_TEST_TMPDIR/bin/bats" -v
[ "$status" -eq 0 ]
[ "${output%% *}" == 'Bats' ]
}
# The resolution scheme here is:
#
# Set in setup
# - /bin => /usr/bin (relative directory)
@test "set BATS_ROOT with extreme symlink resolution" {
# shellcheck disable=SC2103
cd "$BATS_TEST_TMPDIR"
mkdir -p "opt/bats/bin2"
pwd
# - /usr/bin/foo => /usr/bin/bar (relative executable)
ln -s bar usr/bin/foo
# - /usr/bin/bar => /opt/bats/bin0/bar (absolute executable)
ln -s "$BATS_TEST_TMPDIR/opt/bats/bin0/bar" usr/bin/bar
# - /opt/bats/bin0 => /opt/bats/bin1 (relative directory)
ln -s bin1 opt/bats/bin0
# - /opt/bats/bin1 => /opt/bats/bin2 (absolute directory)
ln -s "$BATS_TEST_TMPDIR/opt/bats/bin2" opt/bats/bin1
# - /opt/bats/bin2/bar => /opt/bats-core/bin/bar (absolute executable)
ln -s "$BATS_TEST_TMPDIR/opt/bats-core/bin/bar" opt/bats/bin2/bar
# - /opt/bats-core/bin/bar => /opt/bats-core/bin/baz (relative executable)
ln -s baz opt/bats-core/bin/bar
# - /opt/bats-core/bin/baz => /opt/bats-core/bin/bats (relative executable)
ln -s bats opt/bats-core/bin/baz
# shellcheck disable=SC2103,SC2164
cd - >/dev/null
reentrant_run "$BATS_TEST_TMPDIR/bin/foo" -v
echo "$output"
[ "$status" -eq 0 ]
[ "${output%% *}" == 'Bats' ]
}
@test "set BATS_ROOT when calling from same dir" {
cd "$BATS_TEST_TMPDIR"
reentrant_run ./bin/bats -v
[ "$status" -eq 0 ]
[ "${output%% *}" == 'Bats' ]
}
@test "set BATS_ROOT from PATH" {
cd /tmp
# shellcheck disable=SC2031,SC2030
PATH="$PATH:$BATS_TEST_TMPDIR/bin"
reentrant_run bats -v
[ "$status" -eq 0 ]
[ "${output%% *}" == 'Bats' ]
}
@test "#182 and probably #184 as well" {
cd /tmp
# shellcheck disable=SC2031,SC2030
PATH="$PATH:$BATS_TEST_TMPDIR/bin"
reentrant_run bash bats -v
[ "$status" -eq 0 ]
[ "${output%% *}" == 'Bats' ]
}
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