tests/errors.tests

   1 # These should all be safe
   2 LC_ALL=C
   3 LC_CTYPE=C
   4 LC_COLLATE=C
   5 LC_MESSAGES=C
   6
   7 # these tests should all generate errors
   8
   9 # make sure we don't exit prematurely
  10 set +e
  11 set +o posix
  12
  13 # various alias/unalias errors
  14
  15 # at some point, this may mean to `export' an alias, like ksh, but
  16 # for now it is an error
  17 alias -x foo=barz
  18 unalias -x fooaha
  19 alias hoowah
  20 unalias hoowah
  21
  22 # the iteration variable must be a valid identifier
  23 for 1 in a b c; do echo $1; done
  24
  25 # try to rebind a read-only function
  26 func()
  27 {
  28         echo func
  29 }
  30 readonly -f func
  31 # make sure `readonly' and `declare' play well together
  32 declare -Fr
  33 func()
  34 {
  35         echo bar
  36 }
  37
  38 # bad option
  39 unset -x func
  40
  41 # cannot unset readonly functions or variables
  42 unset -f func
  43 # or make them not readonly
  44 declare -fr func
  45 declare -f +r func
  46
  47 XPATH=$PATH
  48 declare -r XPATH
  49 unset -v XPATH
  50
  51 # cannot unset invalid identifiers
  52 unset /bin/sh
  53
  54 # cannot unset function and variable at the same time
  55 unset -f -v SHELL
  56
  57 # bad option
  58 declare -z
  59 # cannot declare invalid identifiers
  60 declare -- -z
  61 declare /bin/sh
  62
  63 # this is the syntax used to export functions in the environment, but
  64 # it cannot be used with `declare'
  65 declare -f func='() { echo "this is func"; }'
  66
  67 # bad option to exec -- this should not exit the script
  68 exec -i /bin/sh
  69
  70 # try to export -f something that is not a function -- this should be
  71 # an error, not create an `invisible function'
  72 export -f XPATH
  73
  74 # this depends on the setting of BREAK_COMPLAINS in config.h.in
  75 break
  76 continue
  77
  78 # this should not exit the shell; it did in versions before 2.01
  79 shift label
  80
  81 # other shells do not complain about the extra arguments; maybe someday
  82 # we won't either
  83 set -- a b c
  84 shift $# label
  85 # and get rid of the positional parameters
  86 shift $#
  87
  88 # let without an expression is an error, though maybe it should just return
  89 # success
  90 let
  91
  92 # local outside a function is an error
  93 local
  94
  95 # logout of a non-login shell is an error
  96 logout
  97
  98 # try to hash a non-existant command
  99 hash notthere
 100
 101 # bad option to hash, although it may mean `verbose' at some future point
 102 hash -v
 103
 104 # turn off hashing, then try to hash something
 105 set +o hashall
 106 hash -p ${THIS_SH} ${THIS_SH##*/}
 107
 108 # bad identifiers to declare/readonly/export
 109 export AA[4]
 110 readonly AA[4]
 111
 112 declare -a AA
 113 unset AA[-2]
 114
 115 # try to assign to a readonly array
 116 declare -r AA
 117 AA=( one two three )
 118
 119 # make sure `readonly -n' doesn't turn off readonly status
 120 readonly -n AA
 121 AA=(one two three)
 122
 123 # try to assign a readonly array with bad assignment syntax
 124 readonly -a ZZZ=bbb
 125
 126 # bad counts to `shift'
 127 shopt -s shift_verbose
 128 shift $(( $# + 5 ))
 129 shift -2
 130
 131 # bad shell options
 132 shopt -s no_such_option
 133 shopt no_such_option
 134
 135 # non-octal digits for umask and other errors
 136 umask 09
 137 umask -S u=rwx:g=rwx:o=rx >/dev/null # 002
 138 umask -S u:rwx,g:rwx,o:rx >/dev/null # 002
 139
 140 # at some point, this may mean `invert', but for now it is an error
 141 umask -i
 142
 143 # bad assignments shouldn't change the umask
 144 mask=$(umask)
 145 umask g=u
 146 mask2=$(umask)
 147 if [ "$mask" != "$mask2" ]; then
 148         echo "umask errors change process umask"
 149 fi
 150
 151 # assignment to a readonly variable in environment
 152 VAR=4
 153 readonly VAR
 154 VAR=7 :
 155
 156 # more readonly variable tests
 157 declare VAR=88
 158 declare +r VAR
 159
 160 declare -p unset
 161
 162 # iteration variable in a for statement being readonly
 163 for VAR in 1 2 3 ; do echo $VAR; done
 164
 165 # parser errors
 166 : $( for z in 1 2 3; do )
 167 : $( for z in 1 2 3; done )
 168
 169 # various `cd' errors
 170 ( unset HOME ; cd )
 171 ( HOME=/tmp/xyz.bash ; cd )
 172 # errors from cd
 173 cd -
 174 cd /bin/sh      # error - not a directory
 175 OLDPWD=/tmp/cd-notthere
 176 cd -
 177
 178 # various `source/.' errors
 179 .
 180 source
 181
 182 # maybe someday this will work like in rc
 183 . -i /dev/tty
 184
 185 # make sure that this gives an error rather than setting $1
 186 set -q
 187
 188 # enable non-builtins
 189 enable sh bash
 190
 191 # try to set and unset shell options simultaneously
 192 shopt -s -u checkhash
 193
 194 # this is an error -- bad timeout spec
 195 read -t var < /dev/null
 196
 197 # try to read into an invalid identifier
 198 read /bin/sh < /dev/null
 199
 200 # try to read into a readonly variable
 201 read VAR < /dev/null
 202
 203 # bad option to readonly/export
 204 readonly -x foo
 205
 206 # someday these may mean something, but for now they're errors
 207 eval -i "echo $-"
 208 command -i "echo $-"
 209
 210 # this caused a core dump in bash-2.01 (fixed in bash-2.01.1)
 211 eval echo \$[/bin/sh + 0]
 212 eval echo '$((/bin/sh + 0))'
 213
 214 # error to list trap for an unknown signal
 215 trap -p NOSIG
 216
 217 # maybe someday trap will take a -s argument like kill, but not now
 218 trap -p -s NOSIG
 219
 220 # maybe someday we will have a ksh-like ERR trap, but not yet
 221 trap 'echo [$LINENO] -- error' ERR
 222
 223 # can only return from a function or sourced script
 224 return 2
 225
 226 # break and continue with arguments <= 0
 227 for z in 1 2 3; do
 228         break 0
 229         echo $x
 230 done
 231 for z in 1 2 3; do
 232         continue 0
 233         echo $x
 234 done
 235
 236 # builtin with non-builtin
 237 builtin bash
 238
 239 # maybe someday you will be able to use fg/bg when job control is not really
 240 # active, but for now they are errors
 241 bg
 242 fg
 243
 244 # argument required
 245 kill -s
 246 # bad argument
 247 kill -S
 248 # null argument
 249 kill -INT ''
 250 # argument required
 251 kill -INT
 252
 253 # bad shell option names
 254 set -o trackall         # bash is not ksh
 255
 256 # this must be last!
 257 # in posix mode, a function name must be a valid identifier
 258 # this can't go in posix2.tests, since it causes the shell to exit
 259 # immediately
 260 set -o posix
 261 function !! () { fc -s "$@" ; }
 262 set +o posix
 263
 264 echo end