toybox/tests/tail.test
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   1#!/bin/bash
   2
   3[ -f testing.sh ] && . testing.sh
   4
   5#testing "name" "command" "result" "infile" "stdin"
   6
   7BIGTEST="one\ntwo\nthree\nfour\nfive\nsix\nseven\neight\nnine\nten\neleven\n"
   8echo -ne "$BIGTEST" > file1
   9testing "tail" "tail && echo yes" "oneyes\n" "" "one"
  10testing "file" "tail file1" \
  11        "two\nthree\nfour\nfive\nsix\nseven\neight\nnine\nten\neleven\n" "" ""
  12testing "-n in bounds" "tail -n 3 file1" "nine\nten\neleven\n" "" ""
  13testing "-n out of bounds" "tail -n 999 file1" "$BIGTEST" "" ""
  14testing "-n+ in bounds" "tail -n +3 file1" \
  15        "three\nfour\nfive\nsix\nseven\neight\nnine\nten\neleven\n" "" ""
  16testing "-n+ outof bounds" "tail -n +999 file1" "" "" ""
  17testing "-c in bounds" "tail -c 27 file1" \
  18        "even\neight\nnine\nten\neleven\n" "" ""
  19testing "-c out of bounds" "tail -c 999 file1" "$BIGTEST" "" ""
  20testing "-c+ in bounds" "tail -c +27 file1" \
  21        "x\nseven\neight\nnine\nten\neleven\n" "" ""
  22testing "-c+ out of bonds" "tail -c +999 file1" "" "" ""
  23testing "-N" "tail -1 file1" "eleven\n" "" ""
  24rm file1
  25
  26testing "stdin no trailing newline" "tail -n 1 - " "c" "" "a\nb\nc"
  27testing "file no trailing newline" "tail -n 1 input" "c" "a\nb\nc" ""
  28
  29optional TAIL_SEEK
  30testing "noseek -n in bounds" "tail -n 3" "nine\nten\neleven\n" \
  31        "" "$BIGTEST"
  32testing "noseek -n out of bounds" "tail -n 999" "$BIGTEST" "" "$BIGTEST"
  33testing "noseek -n+ in bounds" "tail -n +3" \
  34        "three\nfour\nfive\nsix\nseven\neight\nnine\nten\neleven\n" "" \
  35        "$BIGTEST"
  36testing "noseek -n+ outof bounds" "tail -n +999" "" "" "$BIGTEST"
  37testing "noseek -c in bounds" "tail -c 27" \
  38        "even\neight\nnine\nten\neleven\n" "" "$BIGTEST"
  39testing "noseek -c out of bounds" "tail -c 999" "$BIGTEST" "" "$BIGTEST"
  40testing "noseek -c+ in bounds" "tail -c +27" \
  41        "x\nseven\neight\nnine\nten\neleven\n" "" "$BIGTEST"
  42testing "noseek -c+ out of bonds" "tail -c +999" "" "" "$BIGTEST"
  43
  44makebigfile()
  45{
  46  for j in $(seq 1 100)
  47  do
  48    echo -n "$j "
  49    for i in $(seq 1 100)
  50    do
  51      echo -n 123456789abcefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
  52    done
  53    echo
  54  done
  55}
  56makebigfile > bigfile
  57
  58testing "-c 12345 -n 3 bigfile" "tail -c 12345 -n 3 bigfile | md5sum" \
  59  "347bbdcbad8a313f4dc7bd558c5bfcb8  -\n" "" ""
  60testing "-n 3 -c 12345 bigfile" "tail -n 3 -c 12345 bigfile | md5sum" \
  61  "1698825a750288284ec3ba7d8a59f302  -\n" "" ""
  62rm bigfile
  63
  64echo 111 > one
  65testing "-f one" \
  66  'tail -f one & sleep .25 ; echo two >> one; sleep .25; echo three >> one; sleep .25; kill $! >/dev/null' \
  67  "111\ntwo\nthree\n" "" ""
  68rm one
  69
  70echo uno > one
  71echo dos > two
  72echo tres > three
  73testing "-f one two three" \
  74  'tail -f one two three & sleep .25 ; echo more >> three ; echo also >> one; sleep .25; kill $! >/dev/null' \
  75  "==> one <==\nuno\n\n==> two <==\ndos\n\n==> three <==\ntres\nmore\n\n==> one <==\nalso\n" "" ""
  76rm one two three
  77