#!/bin/bash
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[ -f testing.sh ] && . testing.sh
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#testing "name" "command" "result" "infile" "stdin"
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BIGTEST="one\ntwo\nthree\nfour\nfive\nsix\nseven\neight\nnine\nten\neleven\n"
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echo -ne "$BIGTEST" > file1
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testing "tail" "tail && echo yes" "oneyes\n" "" "one"
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testing "file" "tail file1" \
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"two\nthree\nfour\nfive\nsix\nseven\neight\nnine\nten\neleven\n" "" ""
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testing "-n in bounds" "tail -n 3 file1" "nine\nten\neleven\n" "" ""
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testing "-n out of bounds" "tail -n 999 file1" "$BIGTEST" "" ""
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testing "-n+ in bounds" "tail -n +3 file1" \
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"three\nfour\nfive\nsix\nseven\neight\nnine\nten\neleven\n" "" ""
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testing "-n+ outof bounds" "tail -n +999 file1" "" "" ""
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testing "-c in bounds" "tail -c 27 file1" \
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"even\neight\nnine\nten\neleven\n" "" ""
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testing "-c out of bounds" "tail -c 999 file1" "$BIGTEST" "" ""
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testing "-c+ in bounds" "tail -c +27 file1" \
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"x\nseven\neight\nnine\nten\neleven\n" "" ""
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testing "-c+ out of bonds" "tail -c +999 file1" "" "" ""
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testing "-N" "tail -1 file1" "eleven\n" "" ""
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rm file1
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testing "stdin no trailing newline" "tail -n 1 - " "c" "" "a\nb\nc"
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testing "file no trailing newline" "tail -n 1 input" "c" "a\nb\nc" ""
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optional TAIL_SEEK
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testing "noseek -n in bounds" "tail -n 3" "nine\nten\neleven\n" \
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"" "$BIGTEST"
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testing "noseek -n out of bounds" "tail -n 999" "$BIGTEST" "" "$BIGTEST"
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testing "noseek -n+ in bounds" "tail -n +3" \
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"three\nfour\nfive\nsix\nseven\neight\nnine\nten\neleven\n" "" \
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"$BIGTEST"
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testing "noseek -n+ outof bounds" "tail -n +999" "" "" "$BIGTEST"
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testing "noseek -c in bounds" "tail -c 27" \
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"even\neight\nnine\nten\neleven\n" "" "$BIGTEST"
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testing "noseek -c out of bounds" "tail -c 999" "$BIGTEST" "" "$BIGTEST"
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testing "noseek -c+ in bounds" "tail -c +27" \
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"x\nseven\neight\nnine\nten\neleven\n" "" "$BIGTEST"
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testing "noseek -c+ out of bonds" "tail -c +999" "" "" "$BIGTEST"
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makebigfile()
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{
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for j in $(seq 1 100)
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do
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echo -n "$j "
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for i in $(seq 1 100)
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do
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echo -n 123456789abcefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
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done
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echo
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done
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}
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makebigfile > bigfile
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testing "-c 12345 -n 3 bigfile" "tail -c 12345 -n 3 bigfile | md5sum" \
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"347bbdcbad8a313f4dc7bd558c5bfcb8 -\n" "" ""
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testing "-n 3 -c 12345 bigfile" "tail -n 3 -c 12345 bigfile | md5sum" \
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"1698825a750288284ec3ba7d8a59f302 -\n" "" ""
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rm bigfile
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echo 111 > one
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testing "-f one" \
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'tail -f one & sleep .25 ; echo two >> one; sleep .25; echo three >> one; sleep .25; kill $! >/dev/null' \
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"111\ntwo\nthree\n" "" ""
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rm one
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echo uno > one
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echo dos > two
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echo tres > three
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testing "-f one two three" \
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'tail -f one two three & sleep .25 ; echo more >> three ; echo also >> one; sleep .25; kill $! >/dev/null' \
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"==> one <==\nuno\n\n==> two <==\ndos\n\n==> three <==\ntres\nmore\n\n==> one <==\nalso\n" "" ""
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rm one two three
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