cmd/builtin/tail.tst

# regression tests for the tail utilitiy

KEEP "*.dat"

TWD

export LC_ALL=C

function DATA
{
    typeset f
    integer n
    for f
    do  test -f $f && continue
        case $f in
        10.dat) for ((i = 1; i <= 10; i++))
            do  print $i
            done
            ;;
        100.dat)for ((i = 1; i <= 100; i++))
            do  print $i
            done
            ;;
        500000.dat)
            for ((i = 1; i <= 500000; i++))
            do  print $i
            done
            ;;
        a.dat)  print a
            ;;
        b.dat)  print b
            ;;
        esac > $f
    done
}

TEST 01 'explicit file operands'
    DO  DATA 10.dat 100.dat
    EXEC    10.dat
        OUTPUT - $'1\n2\n3\n4\n5\n6\n7\n8\n9\n10'
    EXEC    +0 10.dat
    EXEC    -n +0 10.dat
    EXEC    +1 10.dat
    EXEC    -n +1 10.dat
    EXEC    +2 10.dat
        OUTPUT - $'2\n3\n4\n5\n6\n7\n8\n9\n10'
    EXEC    -n +2 10.dat
    EXEC    -9 10.dat
    EXEC    -n -9 10.dat
    EXEC    -1 10.dat
        OUTPUT - $'10'
    EXEC    -n -1 10.dat
    EXEC    +10 10.dat
    EXEC    -n +10 10.dat
    EXEC    100.dat
        OUTPUT - $'91\n92\n93\n94\n95\n96\n97\n98\n99\n100'
    EXEC    -1 100.dat
        OUTPUT - $'100'
    EXEC    -n -1 100.dat
    EXEC    +100 100.dat
    EXEC    -n +100 100.dat
    EXEC    -2 100.dat
        OUTPUT - $'99\n100'
    EXEC    -n -2 100.dat
    EXEC    +99 100.dat
    EXEC    -n +99 100.dat
    EXEC    -c 6 100.dat
        OUTPUT - $'9\n100'
    EXEC    -6c 100.dat
    EXEC    -c +287 100.dat
    EXEC    +287c 100.dat

TEST 02 'headers'
    DO  DATA a.dat b.dat
    EXEC    a.dat
        OUTPUT - $'a'
    EXEC    -v a.dat
        OUTPUT - $'==> a.dat <==\na'
    EXEC    a.dat b.dat
        OUTPUT - $'==> a.dat <==\na\n\n==> b.dat <==\nb'
    EXEC    -v a.dat b.dat
    EXEC    -h a.dat
        OUTPUT - $'a'
    EXEC    -h a.dat b.dat
        OUTPUT - $'a\nb'

TEST 03 'timeouts'
    DO  DATA a.dat b.dat
    EXEC    -f -t 2 a.dat
        OUTPUT - $'a'
        ERROR - $'tail: warning: a.dat: 2.00s timeout'
    EXEC    -f -t 2 a.dat b.dat
        OUTPUT - $'==> a.dat <==\na\n\n==> b.dat <==\nb'
        ERROR - $'tail: warning: a.dat: 2.00s timeout\ntail: warning: b.dat: 2.00s timeout'
    EXEC    -s -f -t 2 a.dat
        OUTPUT - $'a'
        ERROR -
    EXEC    -s -f -t 2 a.dat b.dat
        OUTPUT - $'==> a.dat <==\na\n\n==> b.dat <==\nb'
    EXEC    -h -s -f -t 2 a.dat
        OUTPUT - $'a'
    EXEC    -h -s -f -t 2 a.dat b.dat
        OUTPUT - $'a\nb'
    EXEC    -h -f -t 2 a.dat
        OUTPUT - $'a'
        ERROR - $'tail: warning: a.dat: 2.00s timeout'
    EXEC    -h -f -t 2 a.dat b.dat
        OUTPUT - $'a\nb'
        ERROR - $'tail: warning: a.dat: 2.00s timeout\ntail: warning: b.dat: 2.00s timeout'

SET pipe-input

TEST 04 'standard input'
    DO  DATA 10.dat 100.dat
    EXEC
        SAME INPUT 10.dat
        OUTPUT - $'1\n2\n3\n4\n5\n6\n7\n8\n9\n10'
    EXEC    -
    EXEC    +0
    EXEC    -n +0
    EXEC    +1
    EXEC    -n +1
    EXEC    +2
        OUTPUT - $'2\n3\n4\n5\n6\n7\n8\n9\n10'
    EXEC    -n +2
    EXEC    -9
    EXEC    -n -9
    EXEC    -1
        OUTPUT - $'10'
    EXEC    -n -1
    EXEC    +10
    EXEC    -n +10
    EXEC    --
        SAME INPUT 100.dat
        OUTPUT - $'91\n92\n93\n94\n95\n96\n97\n98\n99\n100'
    EXEC    -
    EXEC    -1
        OUTPUT - $'100'
    EXEC    -n -1
    EXEC    +100
    EXEC    -n +100
    EXEC    -2
        OUTPUT - $'99\n100'
    EXEC    -n -2
    EXEC    +99
    EXEC    -n +99
    EXEC    -c 6
        OUTPUT - $'9\n100'
    EXEC    -6c
    EXEC    -c +287
    EXEC    +287c

TEST 05 'r combinations'

    EXEC    -r tst.dat
        INPUT tst.dat $'1\n2\n3\n4\n5\n6\n7\n8\n9\n10'
        OUTPUT - $'10\n9\n8\n7\n6\n5\n4\n3\n2\n1'

    EXEC    -1r tst.dat
        OUTPUT - $'10'

    EXEC    -2r tst.dat
        OUTPUT - $'10\n9'

    EXEC    -3r tst.dat
        OUTPUT - $'10\n9\n8'

    EXEC    -4r tst.dat
        OUTPUT - $'10\n9\n8\n7'

    EXEC    -5r tst.dat
        OUTPUT - $'10\n9\n8\n7\n6'

    EXEC    -6r tst.dat
        OUTPUT - $'10\n9\n8\n7\n6\n5'

    EXEC    -7r tst.dat
        OUTPUT - $'10\n9\n8\n7\n6\n5\n4'

    EXEC    -8r tst.dat
        OUTPUT - $'10\n9\n8\n7\n6\n5\n4\n3'

    EXEC    -9r tst.dat
        OUTPUT - $'10\n9\n8\n7\n6\n5\n4\n3\n2'

    EXEC    -10r tst.dat
        OUTPUT - $'10\n9\n8\n7\n6\n5\n4\n3\n2\n1'

    EXEC    -11r tst.dat

    EXEC    +r tst.dat

    EXEC    +1r tst.dat

    EXEC    +2r tst.dat
        OUTPUT - $'10\n9\n8\n7\n6\n5\n4\n3\n2'

    EXEC    +3r tst.dat
        OUTPUT - $'10\n9\n8\n7\n6\n5\n4\n3'

    EXEC    +4r tst.dat
        OUTPUT - $'10\n9\n8\n7\n6\n5\n4'

    EXEC    +5r tst.dat
        OUTPUT - $'10\n9\n8\n7\n6\n5'

    EXEC    +6r tst.dat
        OUTPUT - $'10\n9\n8\n7\n6'

    EXEC    +7r tst.dat
        OUTPUT - $'10\n9\n8\n7'

    EXEC    +8r tst.dat
        OUTPUT - $'10\n9\n8'

    EXEC    +9r tst.dat
        OUTPUT - $'10\n9'

    EXEC    +10r tst.dat
        OUTPUT - $'10'

    EXEC    +11r tst.dat
        OUTPUT -

# the remainder converted from the gnu tail Test.pm

TEST 10 chars

    EXEC    +2c
        INPUT -n - $'abcd'
        OUTPUT -n - $'bcd'

TEST 11 obs-c

    EXEC    +8c
        INPUT -n - $'abcd'
        OUTPUT -

    EXEC    -1c
        INPUT -n - $'abcd'
        OUTPUT -n - $'d'

    EXEC    -9c
        INPUT -n - $'abcd'
        OUTPUT -n - $'abcd'

    EXEC    -12c
        INPUT -n - $'xyyyyyyyyyyyyz'
        OUTPUT -n - $'yyyyyyyyyyyz'

    EXEC    -1l
        INPUT - $'x'
        OUTPUT - $'x'

TEST 12 obs-l

    EXEC    -1l
        INPUT - $'x\ny'
        OUTPUT - $'y'

    EXEC    +1l
        INPUT - $'x\ny'
        OUTPUT - $'x\ny'

    EXEC    +2l
        INPUT - $'x\ny'
        OUTPUT - $'y'

    EXEC    -1
        INPUT - $'x'
        OUTPUT - $'x'

TEST 13 obs

    EXEC    -1
        INPUT - $'x\ny'
        OUTPUT - $'y'

    EXEC    +1
        INPUT - $'x\ny'
        OUTPUT - $'x\ny'

    EXEC    +2
        INPUT - $'x\ny'
        OUTPUT - $'y'

    EXEC    +c
        INPUT - $'xyyyyyyyyyyz'
        OUTPUT - $'yyz'

    EXEC    -c
        OUTPUT - $'yyyyyyyyz'

    EXEC    +c
        INPUT -n - $'xyyyyyyyyyyz'
        OUTPUT -n - $'yyz'

    EXEC    -c
        OUTPUT -n - $'yyyyyyyyyz'

TEST 14 obsx

    EXEC    +l
        INPUT -n - $'x\ny\ny\ny\ny\ny\ny\ny\ny\ny\ny\nz'
        OUTPUT -n - $'y\ny\nz'

    EXEC    +cl

    EXEC    -l
        INPUT - $'x\ny\ny\ny\ny\ny\ny\ny\ny\ny\ny\nz'
        OUTPUT - $'y\ny\ny\ny\ny\ny\ny\ny\ny\nz'

    EXEC    -cl

TEST 15 empty

    EXEC    -

    EXEC    -c

TEST 16 err

    EXEC    +2cz
        ERROR - $'tail: z: invalid suffix
Usage: tail [-bfhlLqrsv] [-n lines] [-c[chars]] [-t timeout] [file ...]'
            EXIT 2

    EXEC    -2cX
        ERROR - $'tail: X: invalid suffix
Usage: tail [-bfhlLqrsv] [-n lines] [-c[chars]] [-t timeout] [file ...]'

    EXEC    -c99999999999999999999
        ERROR - $'tail: -c: 99999999999999999999: invalid numeric argument -- out of range
Usage: tail [-bfhlLqrsv] [-n lines] [-c[chars]] [-t timeout] [file ...]'

TEST 17 minus

    EXEC    -
        INPUT - $'x\ny\ny\ny\ny\ny\ny\ny\ny\ny\ny\nz'
        OUTPUT - $'y\ny\ny\ny\ny\ny\ny\ny\ny\nz'

    EXEC    -n 10

TEST 18 n

    EXEC    -n -10
        INPUT - $'x\ny\ny\ny\ny\ny\ny\ny\ny\ny\ny\nz'
        OUTPUT - $'y\ny\ny\ny\ny\ny\ny\ny\ny\nz'

    EXEC    -n +10
        INPUT - $'x\ny\ny\ny\ny\ny\ny\ny\ny\ny\ny\nz'
        OUTPUT - $'y\ny\nz'

    EXEC    -n +0
        INPUT - $'y\ny\ny\ny\ny'
        OUTPUT - $'y\ny\ny\ny\ny'

    EXEC    -n +1
        INPUT - $'y\ny\ny\ny\ny'
        OUTPUT - $'y\ny\ny\ny\ny'

    EXEC    -n -0
        INPUT - $'y\ny\ny\ny\ny'
        OUTPUT -

    EXEC    -n -1
        INPUT - $'y\ny\ny\ny\ny'
        OUTPUT - $'y'

    EXEC    -n  0
        INPUT - $'y\ny\ny\ny\ny'
        OUTPUT -

TEST 19 VSC#4,5,14,15,1001,1003

    EXEC    - more
        INPUT more $'111\n222\n333\n444\n555\n666\n777\n888\n999\naaa\nbbb\nccc'
        OUTPUT - $'333\n444\n555\n666\n777\n888\n999\naaa\nbbb\nccc'

    EXEC    -10 more

    EXEC    -l more

    EXEC    -10l more

    EXEC    + more
        OUTPUT - $'aaa\nbbb\nccc'

    EXEC    +10 more

    EXEC    +l more

    EXEC    +10l more

    EXEC    - less
        INPUT less $'111\n222\n333\n444\n555'
        OUTPUT - $'111\n222\n333\n444\n555'

    EXEC    -l less

    EXEC    +c less
        OUTPUT - $'33\n444\n555'

    EXEC    +c mini
        INPUT mini $'111\n222'
        OUTPUT -

    EXEC    +512c big
        INPUT big $'1bcdefgh2bcdefgh3bcdefgh4bcdefgh5bcdefgh6bcdefgh7bcdefgh8bcdefgh
2bcdefgh2bcdefgh3bcdefgh4bcdefgh5bcdefgh6bcdefgh7bcdefgh8bcdefgh
3bcdefgh2bcdefgh3bcdefgh4bcdefgh5bcdefgh6bcdefgh7bcdefgh8bcdefgh
4bcdefgh2bcdefgh3bcdefgh4bcdefgh5bcdefgh6bcdefgh7bcdefgh8bcdefgh
5bcdefgh2bcdefgh3bcdefgh4bcdefgh5bcdefgh6bcdefgh7bcdefgh8bcdefgh
6bcdefgh2bcdefgh3bcdefgh4bcdefgh5bcdefgh6bcdefgh7bcdefgh8bcdefgh
7bcdefgh2bcdefgh3bcdefgh4bcdefgh5bcdefgh6bcdefgh7bcdefgh8bcdefgh
8bcdefgh2bcdefgh3bcdefgh4bcdefgh5bcdefgh6bcdefgh7bcdefgh8bcdefgh'
        OUTPUT - $'8bcdefgh'

    EXEC    +1b big

    EXEC    -512c big
        OUTPUT - $'2bcdefgh3bcdefgh4bcdefgh5bcdefgh6bcdefgh7bcdefgh8bcdefgh
2bcdefgh2bcdefgh3bcdefgh4bcdefgh5bcdefgh6bcdefgh7bcdefgh8bcdefgh
3bcdefgh2bcdefgh3bcdefgh4bcdefgh5bcdefgh6bcdefgh7bcdefgh8bcdefgh
4bcdefgh2bcdefgh3bcdefgh4bcdefgh5bcdefgh6bcdefgh7bcdefgh8bcdefgh
5bcdefgh2bcdefgh3bcdefgh4bcdefgh5bcdefgh6bcdefgh7bcdefgh8bcdefgh
6bcdefgh2bcdefgh3bcdefgh4bcdefgh5bcdefgh6bcdefgh7bcdefgh8bcdefgh
7bcdefgh2bcdefgh3bcdefgh4bcdefgh5bcdefgh6bcdefgh7bcdefgh8bcdefgh
8bcdefgh2bcdefgh3bcdefgh4bcdefgh5bcdefgh6bcdefgh7bcdefgh8bcdefgh'

    EXEC    -1b big

TEST 20 VSC#20

    EXEC    -t1s -s -f -c -7 more
        INPUT more $'111\n222\n333\n444\n555\n666\n777\n888\n999\naaa\nbbb\nccc'
        OUTPUT - $'bb\nccc'

    EXEC    -c -7 more #21

    EXEC    -t1s -s -f -n +10 more
        OUTPUT - $'aaa\nbbb\nccc'

    EXEC    -n +10 more

    EXEC    -t1s -s -f -n -4 more
        OUTPUT - $'999\naaa\nbbb\nccc'

    EXEC    -n -4 more

    EXEC    -t1s -s -f -n +4 more
        OUTPUT - $'444\n555\n666\n777\n888\n999\naaa\nbbb\nccc'

    EXEC    -n +4 more

    EXEC    -t1s -s -7lf more
        OUTPUT - $'666\n777\n888\n999\naaa\nbbb\nccc'

    EXEC    -7l more

    EXEC    -t1s -s -7cf more
        OUTPUT - $'bb\nccc'

    EXEC    -7c more

    EXEC    -t1s -s +33cf more
        OUTPUT - $'999\naaa\nbbb\nccc'

    EXEC    +33c more

    EXEC    -t1s -s +12lf more
        OUTPUT - $'ccc'

    EXEC    +12l more

TEST 21 xpg4

    EXEC    -t1s -s -f1 more
        INPUT more $'111\n222\n333\n444\n555\n666\n777\n888\n999\naaa\nbbb\nccc'
        OUTPUT - $'ccc'

    EXEC    -t1s -s -f10 more
        OUTPUT - $'333\n444\n555\n666\n777\n888\n999\naaa\nbbb\nccc'

    EXEC    -t1s -s -f more

SET nopipe-input

TEST 30 'fifo by redirection'

    JOB -f
        FIFO INPUT - $'1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n11\n12\n13\n14\n15\n16\n17\n18\n19\n20'
        OUTPUT - $'11\n12\n13\n14\n15\n16\n17\n18\n19\n20'
    EXITED

TEST 31 'fifo by path'

    JOB -f fifo
        FIFO INPUT fifo $'1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n11\n12\n13\n14\n15\n16\n17\n18\n19\n20'
        OUTPUT - $'11\n12\n13\n14\n15\n16\n17\n18\n19\n20'
    CONTINUE
        INPUT fifo $'1\n2\n3\n4\n5\n6\n7\n8\n9\n10'
        OUTPUT - $'1\n2\n3\n4\n5\n6\n7\n8\n9\n10'
    CONTINUE

function partial
{
    integer n=${1:-4} s=1 i j
    typeset -A f

    for ((i = 1; i <= n; i++))
    do  f[$i]=1
        {
            print $i
            for ((j = 1; j <= i; j++))
            do  print -n "$i $j ... "
                sleep $s
                print $i $j ok
            done
        } > $i &
    done
}

TEST 32 'tail -f with partial lines'

    PROG partial 4

    EXEC -t2 -f 1 2 3 4
        OUTPUT -e 'egrep -v "^$|^==" | sort' - $'1
1 1 ... 1 1 ok
2
2 1 ... 2 1 ok
2 2 ... 2 2 ok
3
3 1 ... 3 1 ok
3 2 ... 3 2 ok
3 3 ... 3 3 ok
4
4 1 ... 4 1 ok
4 2 ... 4 2 ok
4 3 ... 4 3 ok
4 4 ... 4 4 ok'
        ERROR - $'tail: warning: 1: 2.00s timeout
tail: warning: 2: 2.00s timeout
tail: warning: 3: 2.00s timeout
tail: warning: 4: 2.00s timeout'

    PROG wait
        OUTPUT -
        ERROR -

TEST 33 "-f large initial context"

    DO  DATA 500000.dat

    EXEC    -n 600000 -f -t 1 500000.dat
        SAME OUTPUT 500000.dat
        ERROR - 'tail: warning: 500000.dat: 1.00s timeout'

TEST 34 "no initial context"

    DO  DATA 10.dat

    EXEC    -n 0 10.dat
        OUTPUT -

    EXEC    -n -0 10.dat
        OUTPUT -

    EXEC    -0 10.dat
        OUTPUT -

    EXEC    -n 0 -f -t 1 10.dat
        ERROR - 'tail: warning: 10.dat: 1.00s timeout'

    EXEC    -n -0 -f -t 1 10.dat

    EXEC    -0 -f -t 1 10.dat

    EXEC    -0f -t 1 10.dat