tests/tail.test

   1 #!/bin/bash
   2
   3 [ -f testing.sh ] && . testing.sh
   4
   5 #testing "name" "command" "result" "infile" "stdin"
   6
   7 BIGTEST="one\ntwo\nthree\nfour\nfive\nsix\nseven\neight\nnine\nten\neleven\n"
   8 echo -ne "$BIGTEST" > file1
   9 testing "tail" "tail && echo yes" "oneyes\n" "" "one"
  10 testing "file" "tail file1" \
  11         "two\nthree\nfour\nfive\nsix\nseven\neight\nnine\nten\neleven\n" "" ""
  12 testing "-n in bounds" "tail -n 3 file1" "nine\nten\neleven\n" "" ""
  13 testing "-n out of bounds" "tail -n 999 file1" "$BIGTEST" "" ""
  14 testing "-n+ in bounds" "tail -n +3 file1" \
  15         "three\nfour\nfive\nsix\nseven\neight\nnine\nten\neleven\n" "" ""
  16 testing "-n+ outof bounds" "tail -n +999 file1" "" "" ""
  17 testing "-c in bounds" "tail -c 27 file1" \
  18         "even\neight\nnine\nten\neleven\n" "" ""
  19 testing "-c out of bounds" "tail -c 999 file1" "$BIGTEST" "" ""
  20 testing "-c+ in bounds" "tail -c +27 file1" \
  21         "x\nseven\neight\nnine\nten\neleven\n" "" ""
  22 testing "-c+ out of bonds" "tail -c +999 file1" "" "" ""
  23 testing "-N" "tail -1 file1" "eleven\n" "" ""
  24 rm file1
  25
  26 testing "stdin no trailing newline" "tail -n 1 - " "c" "" "a\nb\nc"
  27 testing "file no trailing newline" "tail -n 1 input" "c" "a\nb\nc" ""
  28
  29 optional TAIL_SEEK
  30 testing "noseek -n in bounds" "tail -n 3" "nine\nten\neleven\n" \
  31         "" "$BIGTEST"
  32 testing "noseek -n out of bounds" "tail -n 999" "$BIGTEST" "" "$BIGTEST"
  33 testing "noseek -n+ in bounds" "tail -n +3" \
  34         "three\nfour\nfive\nsix\nseven\neight\nnine\nten\neleven\n" "" \
  35         "$BIGTEST"
  36 testing "noseek -n+ outof bounds" "tail -n +999" "" "" "$BIGTEST"
  37 testing "noseek -c in bounds" "tail -c 27" \
  38         "even\neight\nnine\nten\neleven\n" "" "$BIGTEST"
  39 testing "noseek -c out of bounds" "tail -c 999" "$BIGTEST" "" "$BIGTEST"
  40 testing "noseek -c+ in bounds" "tail -c +27" \
  41         "x\nseven\neight\nnine\nten\neleven\n" "" "$BIGTEST"
  42 testing "noseek -c+ out of bonds" "tail -c +999" "" "" "$BIGTEST"
  43
  44 makebigfile()
  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 }
  56 makebigfile > bigfile
  57
  58 testing "-c 12345 -n 3 bigfile" "tail -c 12345 -n 3 bigfile | md5sum" \
  59   "347bbdcbad8a313f4dc7bd558c5bfcb8  -\n" "" ""
  60 testing "-n 3 -c 12345 bigfile" "tail -n 3 -c 12345 bigfile | md5sum" \
  61   "1698825a750288284ec3ba7d8a59f302  -\n" "" ""
  62 rm bigfile
  63
  64 echo 111 > one
  65 testing "-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" "" ""
  68 rm one
  69
  70 echo uno > one
  71 echo dos > two
  72 echo tres > three
  73 testing "-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" "" ""
  76 rm one two three