Per-file setup/teardown support for BATS

test.bats

setup() {
  # Global setup
  if [ $BATS_TEST_NUMBER -eq 1 ]; then
    {
      echo export FOO=bar
    } >${BATS_TMPDIR}/bats.import.$PPID
  fi
  . ${BATS_TMPDIR}/bats.import.$PPID

  # Per-test setup as per documentation

}

teardown() {
  # Global teardown
  if [ "$BATS_TEST_NAME" = "${BATS_TEST_NAMES[((${#BATS_TEST_NAMES[*]}-1))]}" ]; then
    rm -f ${BATS_TMPDIR}/bats.import.$PPID
  fi

  # Per-test teardown as per documentation
}

@test "foo" {
}