release/src/router/busybox/testsuite/grep.tests

   1 #!/bin/sh
   2
   3 # Copyright 2005 by Rob Landley <rob@landley.net>
   4 # Licensed under GPL v2, see file LICENSE for details.
   5
   6 # AUDIT:
   7
   8 . testing.sh
   9
  10 # testing "test name" "options" "expected result" "file input" "stdin"
  11 #   file input will be file called "input"
  12 #   test can create a file "actual" instead of writing to stdout
  13
  14 # Test exit status
  15
  16 testing "grep (exit with error)" "grep nonexistent 2> /dev/null ; echo \$?" \
  17         "1\n" "" ""
  18 testing "grep (exit success)" "grep grep $0 > /dev/null 2>&1 ; echo \$?" "0\n" \
  19         "" ""
  20 # Test various data sources and destinations
  21
  22 testing "grep (default to stdin)" "grep two" "two\n" "" \
  23         "one\ntwo\nthree\nthree\nthree\n"
  24 testing "grep - (specify stdin)" "grep two -" "two\n" "" \
  25         "one\ntwo\nthree\nthree\nthree\n"
  26 testing "grep input (specify file)" "grep two input" "two\n" \
  27         "one\ntwo\nthree\nthree\nthree\n" ""
  28
  29 # GNU grep 2.5.3 outputs a new line character after the located string
  30 # even if there is no new line character in the input
  31 testing "grep (no newline at EOL)" "grep bug input" "bug\n" "bug" ""
  32
  33 >empty
  34 testing "grep two files" "grep two input empty 2>/dev/null" \
  35         "input:two\n" "one\ntwo\nthree\nthree\nthree\n" ""
  36 rm empty
  37
  38 testing "grep - infile (specify stdin and file)" "grep two - input" \
  39         "(standard input):two\ninput:two\n" "one\ntwo\nthree\n" \
  40         "one\ntwo\ntoo\nthree\nthree\n"
  41
  42 # Check if we see the correct return value if both stdin and non-existing file
  43 # are given.
  44 testing "grep - nofile (specify stdin and nonexisting file)" \
  45         "grep two - nonexistent 2> /dev/null ; echo \$?" \
  46         "(standard input):two\n(standard input):two\n2\n" \
  47         "" "one\ntwo\ntwo\nthree\nthree\nthree\n"
  48 testing "grep -q - nofile (specify stdin and nonexisting file, no match)" \
  49         "grep -q nomatch - nonexistent 2> /dev/null ; echo \$?" \
  50         "2\n" "" "one\ntwo\ntwo\nthree\nthree\nthree\n"
  51 # SUSv3: If the -q option is specified, the exit status shall be zero
  52 #        if an input line is selected, even if an error was detected.
  53 testing "grep -q - nofile (specify stdin and nonexisting file, match)" \
  54         "grep -q two - nonexistent ; echo \$?" \
  55         "0\n" "" "one\ntwo\ntwo\nthree\nthree\nthree\n"
  56
  57 # Test various command line options
  58 # -s no error messages
  59 testing "grep -s nofile (nonexisting file, no match)" \
  60         "grep -s nomatch nonexistent ; echo \$?" "2\n" "" ""
  61 testing "grep -s nofile - (stdin and nonexisting file, match)" \
  62         "grep -s domatch nonexistent - ; echo \$?" \
  63         "(standard input):domatch\n2\n" "" "nomatch\ndomatch\nend\n"
  64
  65 testing "grep handles NUL in files" "grep -a foo input" "\0foo\n" "\0foo\n\n" ""
  66 testing "grep handles NUL on stdin" "grep -a foo" "\0foo\n" "" "\0foo\n\n"
  67
  68 testing "grep matches NUL" "grep . input > /dev/null 2>&1 ; echo \$?" \
  69         "0\n" "\0\n" ""
  70
  71 # -e regex
  72 testing "grep handles multiple regexps" "grep -e one -e two input ; echo \$?" \
  73         "one\ntwo\n0\n" "one\ntwo\n" ""
  74 testing "grep -F handles multiple expessions" "grep -F -e one -e two input ; echo \$?" \
  75         "one\ntwo\n0\n" "one\ntwo\n" ""
  76
  77 # -f file/-
  78 testing "grep can read regexps from stdin" "grep -f - input ; echo \$?" \
  79         "two\nthree\n0\n" "tw\ntwo\nthree\n" "tw.\nthr\n"
  80
  81 optional FEATURE_GREP_EGREP_ALIAS
  82 testing "grep -E supports extended regexps" "grep -E fo+" "foo\n" "" \
  83         "b\ar\nfoo\nbaz"
  84 testing "grep is also egrep" "egrep foo" "foo\n" "" "foo\nbar\n"
  85 testing "egrep is not case insensitive" \
  86         "egrep foo ; [ \$? -ne 0 ] && echo yes" "yes\n" "" "FOO\n"
  87
  88 exit $FAILCOUNT