1 | ## oils_failures_allowed: 2
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2 | ## compare_shells: dash bash-4.4 mksh zsh
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3 |
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4 | #### Env value doesn't persist
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5 | FOO=foo printenv.py FOO
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6 | echo -$FOO-
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7 | ## STDOUT:
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8 | foo
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9 | --
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10 | ## END
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11 |
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12 | #### Env value with equals
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13 | FOO=foo=foo printenv.py FOO
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14 | ## stdout: foo=foo
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15 |
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16 | #### Env binding can use preceding bindings, but not subsequent ones
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17 | # This means that for ASSIGNMENT_WORD, on the RHS you invoke the parser again!
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18 | # Could be any kind of quoted string.
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19 | FOO="foo" BAR="[$FOO][$BAZ]" BAZ=baz printenv.py FOO BAR BAZ
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20 | ## STDOUT:
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21 | foo
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22 | [foo][]
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23 | baz
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24 | ## BUG mksh STDOUT:
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25 | foo
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26 | [][]
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27 | baz
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28 | ## END
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29 |
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30 | #### Env value with two quotes
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31 | FOO='foo'"adjacent" printenv.py FOO
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32 | ## stdout: fooadjacent
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33 |
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34 | #### Env value with escaped <
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35 | FOO=foo\<foo printenv.py FOO
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36 | ## stdout: foo<foo
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37 |
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38 | #### FOO=foo echo [foo]
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39 | FOO=foo echo "[$foo]"
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40 | ## stdout: []
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41 |
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42 | #### FOO=foo fun
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43 | fun() {
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44 | echo "[$FOO]"
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45 | }
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46 | FOO=foo fun
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47 | ## stdout: [foo]
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48 |
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49 | #### Multiple temporary envs on the stack
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50 | g() {
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51 | echo "$F" "$G1" "$G2"
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52 | echo '--- g() ---'
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53 | P=p printenv.py F G1 G2 A P
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54 | }
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55 | f() {
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56 | # NOTE: G1 doesn't pick up binding f, but G2 picks up a.
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57 | # I don't quite understand why this is, but bash and OSH agree!
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58 | G1=[$f] G2=[$a] g
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59 | echo '--- f() ---'
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60 | printenv.py F G1 G2 A P
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61 | }
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62 | a=A
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63 | F=f f
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64 | ## STDOUT:
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65 | f [] [A]
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66 | --- g() ---
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67 | f
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68 | []
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69 | [A]
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70 | None
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71 | p
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72 | --- f() ---
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73 | f
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74 | None
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75 | None
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76 | None
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77 | None
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78 | ## END
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79 | ## OK mksh STDOUT:
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80 | # G1 and G2 somehow persist. I think that is a bug. They should be local to
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81 | # the G call.
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82 | f [] [A]
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83 | --- g() ---
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84 | f
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85 | []
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86 | [A]
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87 | None
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88 | p
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89 | --- f() ---
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90 | f
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91 | []
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92 | [A]
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93 | None
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94 | None
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95 | ## END
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96 | ## BUG dash STDOUT:
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97 | # dash sets even less stuff. Doesn't appear correct.
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98 | f [] [A]
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99 | --- g() ---
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100 | None
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101 | None
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102 | None
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103 | None
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104 | p
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105 | --- f() ---
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106 | None
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107 | None
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108 | None
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109 | None
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110 | None
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111 | ## END
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112 |
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113 | #### Escaped = in command name
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114 | # foo=bar is in the 'spec/bin' dir.
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115 | foo\=bar
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116 | ## stdout: HI
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117 |
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118 | #### Env binding not allowed before compound command
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119 | # bash gives exit code 2 for syntax error, because of 'do'.
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120 | # dash gives 0 because there is stuff after for? Should really give an error.
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121 | # mksh gives acceptable error of 1.
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122 | FOO=bar for i in a b; do printenv.py $FOO; done
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123 | ## status: 2
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124 | ## OK mksh/zsh status: 1
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125 |
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126 | #### Trying to run keyword 'for'
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127 | FOO=bar for
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128 | ## status: 127
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129 | ## OK zsh status: 1
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130 |
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131 | #### Empty env binding
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132 | EMPTY= printenv.py EMPTY
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133 | ## stdout:
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134 |
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135 | #### Assignment doesn't do word splitting
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136 | words='one two'
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137 | a=$words
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138 | argv.py "$a"
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139 | ## stdout: ['one two']
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140 |
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141 | #### Assignment doesn't do glob expansion
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142 | touch _tmp/z.Z _tmp/zz.Z
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143 | a=_tmp/*.Z
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144 | argv.py "$a"
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145 | ## stdout: ['_tmp/*.Z']
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146 |
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147 | #### Env binding in readonly/declare is NOT exported! (pitfall)
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148 |
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149 | # All shells agree on this, but it's very confusing behavior.
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150 | FOO=foo readonly v=$(printenv.py FOO)
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151 | echo "v=$v"
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152 |
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153 | # bash has probems here:
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154 | FOO=foo readonly v2=$FOO
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155 | echo "v2=$v2"
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156 |
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157 | ## STDOUT:
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158 | v=None
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159 | v2=foo
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160 | ## END
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161 | ## BUG bash STDOUT:
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162 | v=None
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163 | v2=
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164 | ## END
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165 |
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166 | #### assignments / array assignments not interpreted after 'echo'
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167 | a=1 echo b[0]=2 c=3
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168 | ## stdout: b[0]=2 c=3
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169 | # zsh interprets [0] as some kind of glob
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170 | ## OK zsh stdout-json: ""
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171 | ## OK zsh status: 1
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172 |
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173 | #### dynamic local variables (and splitting)
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174 | f() {
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175 | local "$1" # Only x is assigned here
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176 | echo x=\'$x\'
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177 | echo a=\'$a\'
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178 |
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179 | local $1 # x and a are assigned here
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180 | echo x=\'$x\'
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181 | echo a=\'$a\'
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182 | }
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183 | f 'x=y a=b'
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184 | ## OK dash/bash/mksh STDOUT:
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185 | x='y a=b'
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186 | a=''
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187 | x='y'
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188 | a='b'
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189 | ## END
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190 | # osh and zsh don't do word splitting
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191 | ## STDOUT:
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192 | x='y a=b'
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193 | a=''
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194 | x='y a=b'
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195 | a=''
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196 | ## END
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197 |
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198 | #### readonly x= gives empty string (regression)
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199 | readonly x=
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200 | argv.py "$x"
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201 | ## STDOUT:
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202 | ['']
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203 | ## END
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204 |
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205 | #### 'local x' does not set variable
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206 | set -o nounset
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207 | f() {
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208 | local x
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209 | echo $x
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210 | }
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211 | f
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212 | ## status: 1
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213 | ## OK dash status: 2
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214 | ## BUG zsh status: 0
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215 |
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216 | #### 'local -a x' does not set variable
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217 | set -o nounset
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218 | f() {
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219 | local -a x
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220 | echo $x
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221 | }
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222 | f
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223 | ## status: 1
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224 | ## OK dash status: 2
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225 | ## BUG zsh status: 0
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226 |
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227 | #### 'local x' and then array assignment
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228 | f() {
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229 | local x
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230 | x[3]=foo
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231 | echo ${x[3]}
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232 | }
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233 | f
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234 | ## status: 0
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235 | ## stdout: foo
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236 | ## N-I dash status: 2
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237 | ## N-I dash stdout-json: ""
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238 | ## BUG zsh stdout: o
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239 |
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240 | #### 'declare -A' and then dict assignment
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241 | declare -A foo
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242 | key=bar
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243 | foo["$key"]=value
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244 | echo ${foo["bar"]}
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245 | ## status: 0
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246 | ## stdout: value
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247 | ## N-I dash status: 2
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248 | ## N-I dash stdout-json: ""
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249 | ## N-I mksh status: 1
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250 | ## N-I mksh stdout-json: ""
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251 |
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252 | #### declare in an if statement
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253 | # bug caught by my feature detection snippet in bash-completion
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254 | if ! foo=bar; then
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255 | echo BAD
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256 | fi
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257 | echo $foo
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258 | if ! eval 'spam=eggs'; then
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259 | echo BAD
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260 | fi
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261 | echo $spam
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262 | ## STDOUT:
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263 | bar
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264 | eggs
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265 | ## END
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266 |
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267 |
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268 | #### Modify a temporary binding
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269 | # (regression for bug found by Michael Greenberg)
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270 | f() {
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271 | echo "x before = $x"
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272 | x=$((x+1))
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273 | echo "x after = $x"
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274 | }
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275 | x=5 f
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276 | ## STDOUT:
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277 | x before = 5
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278 | x after = 6
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279 | ## END
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280 |
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281 | #### Reveal existence of "temp frame" (All shells disagree here!!!)
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282 | f() {
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283 | echo "x=$x"
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284 |
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285 | x=mutated-temp # mutate temp frame
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286 | echo "x=$x"
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287 |
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288 | # Declare a new local
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289 | local x='local'
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290 | echo "x=$x"
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291 |
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292 | # Unset it
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293 | unset x
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294 | echo "x=$x"
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295 | }
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296 |
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297 | x=global
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298 | x=temp-binding f
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299 | echo "x=$x"
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300 |
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301 | ## STDOUT:
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302 | x=temp-binding
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303 | x=mutated-temp
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304 | x=local
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305 | x=mutated-temp
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306 | x=global
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307 | ## END
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308 | ## OK dash/zsh STDOUT:
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309 | x=temp-binding
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310 | x=mutated-temp
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311 | x=local
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312 | x=
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313 | x=global
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314 | ## END
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315 | ## BUG bash STDOUT:
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316 | x=temp-binding
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317 | x=mutated-temp
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318 | x=local
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319 | x=global
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320 | x=global
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321 | ## END
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322 | ## BUG mksh STDOUT:
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323 | x=temp-binding
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324 | x=mutated-temp
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325 | x=local
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326 | x=mutated-temp
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327 | x=mutated-temp
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328 | ## END
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329 | ## BUG yash STDOUT:
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330 | # yash has no locals
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331 | x=temp-binding
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332 | x=mutated-temp
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333 | x=mutated-temp
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334 | x=
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335 | x=
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336 | ## END
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337 |
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338 | #### Test above without 'local' (which is not POSIX)
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339 | f() {
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340 | echo "x=$x"
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341 |
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342 | x=mutated-temp # mutate temp frame
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343 | echo "x=$x"
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344 |
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345 | # Unset it
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346 | unset x
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347 | echo "x=$x"
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348 | }
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349 |
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350 | x=global
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351 | x=temp-binding f
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352 | echo "x=$x"
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353 |
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354 | ## OK dash/zsh STDOUT:
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355 | x=temp-binding
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356 | x=mutated-temp
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357 | x=
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358 | x=global
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359 | ## END
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360 | ## BUG mksh/yash STDOUT:
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361 | x=temp-binding
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362 | x=mutated-temp
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363 | x=
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364 | x=
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365 | ## END
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366 | ## STDOUT:
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367 | x=temp-binding
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368 | x=mutated-temp
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369 | x=global
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370 | x=global
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371 | ## END
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372 |
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373 | #### Using ${x-default} after unsetting local shadowing a global
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374 | f() {
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375 | echo "x=$x"
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376 | local x='local'
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377 | echo "x=$x"
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378 | unset x
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379 | echo "- operator = ${x-default}"
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380 | echo ":- operator = ${x:-default}"
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381 | }
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382 | x=global
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383 | f
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384 | ## OK dash/bash/zsh STDOUT:
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385 | x=global
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386 | x=local
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387 | - operator = default
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388 | :- operator = default
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389 | ## END
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390 | ## STDOUT:
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391 | x=global
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392 | x=local
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393 | - operator = global
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394 | :- operator = global
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395 | ## END
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396 |
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397 | #### Using ${x-default} after unsetting a temp binding shadowing a global
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398 | f() {
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399 | echo "x=$x"
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400 | local x='local'
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401 | echo "x=$x"
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402 | unset x
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403 | echo "- operator = ${x-default}"
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404 | echo ":- operator = ${x:-default}"
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405 | }
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406 | x=global
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407 | x=temp-binding f
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408 | ## OK dash/zsh STDOUT:
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409 | x=temp-binding
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410 | x=local
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411 | - operator = default
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412 | :- operator = default
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413 | ## END
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414 | ## STDOUT:
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415 | x=temp-binding
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416 | x=local
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417 | - operator = temp-binding
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418 | :- operator = temp-binding
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419 | ## END
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420 | ## BUG bash STDOUT:
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421 | x=temp-binding
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422 | x=local
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423 | - operator = global
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424 | :- operator = global
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425 | ## END
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426 |
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427 | #### static assignment doesn't split
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428 | words='a b c'
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429 | export ex=$words
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430 | glo=$words
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431 | readonly ro=$words
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432 | argv.py "$ex" "$glo" "$ro"
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433 |
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434 | ## STDOUT:
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435 | ['a b c', 'a b c', 'a b c']
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436 | ## END
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437 | ## BUG dash STDOUT:
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438 | ['a', 'a b c', 'a']
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439 | ## END
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440 |
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441 |
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442 | #### aliased assignment doesn't split
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443 | shopt -s expand_aliases || true
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444 | words='a b c'
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445 | alias e=export
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446 | alias r=readonly
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447 | e ex=$words
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448 | r ro=$words
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449 | argv.py "$ex" "$ro"
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450 | ## BUG dash STDOUT:
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451 | ['a', 'a']
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452 | ## END
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453 | ## STDOUT:
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454 | ['a b c', 'a b c']
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455 | ## END
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456 |
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457 |
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458 | #### assignment using dynamic keyword (splits in most shells, not in zsh/osh)
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459 | words='a b c'
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460 | e=export
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461 | r=readonly
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462 | $e ex=$words
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463 | $r ro=$words
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464 | argv.py "$ex" "$ro"
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465 |
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466 | # zsh and OSH are smart
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467 | ## STDOUT:
|
468 | ['a b c', 'a b c']
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469 | ## END
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470 |
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471 | ## OK dash/bash/mksh STDOUT:
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472 | ['a', 'a']
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473 | ## END
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474 |
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475 |
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476 | #### assignment using dynamic var names doesn't split
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477 | words='a b c'
|
478 | arg_ex=ex=$words
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479 | arg_ro=ro=$words
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480 |
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481 | # no quotes, this is split of course
|
482 | export $arg_ex
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483 | readonly $arg_ro
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484 |
|
485 | argv.py "$ex" "$ro"
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486 |
|
487 | arg_ex2=ex2=$words
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488 | arg_ro2=ro2=$words
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489 |
|
490 | # quotes, no splitting
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491 | export "$arg_ex2"
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492 | readonly "$arg_ro2"
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493 |
|
494 | argv.py "$ex2" "$ro2"
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495 |
|
496 | ## STDOUT:
|
497 | ['a b c', 'a b c']
|
498 | ['a b c', 'a b c']
|
499 | ## END
|
500 | ## OK dash/bash/mksh STDOUT:
|
501 | ['a', 'a']
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502 | ['a b c', 'a b c']
|
503 | ## END
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504 |
|
505 | #### assign and glob
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506 | cd $TMP
|
507 | touch foo=a foo=b
|
508 | foo=*
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509 | argv.py "$foo"
|
510 | unset foo
|
511 |
|
512 | export foo=*
|
513 | argv.py "$foo"
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514 | unset foo
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515 |
|
516 | ## STDOUT:
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517 | ['*']
|
518 | ['*']
|
519 | ## END
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520 | ## BUG dash STDOUT:
|
521 | ['*']
|
522 | ['b']
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523 | ## END
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524 |
|
525 | #### declare and glob
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526 | cd $TMP
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527 | touch foo=a foo=b
|
528 | typeset foo=*
|
529 | argv.py "$foo"
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530 | unset foo
|
531 | ## STDOUT:
|
532 | ['*']
|
533 | ## END
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534 | ## N-I dash STDOUT:
|
535 | ['']
|
536 | ## END
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537 |
|
538 | #### readonly $x where x='b c'
|
539 | one=a
|
540 | two='b c'
|
541 | readonly $two $one
|
542 | a=new
|
543 | echo status=$?
|
544 | b=new
|
545 | echo status=$?
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546 | c=new
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547 | echo status=$?
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548 |
|
549 | # in OSH and zsh, this is an invalid variable name
|
550 | ## status: 1
|
551 | ## stdout-json: ""
|
552 |
|
553 | # most shells make two variable read-only
|
554 |
|
555 | ## OK dash/mksh status: 2
|
556 | ## OK bash status: 0
|
557 | ## OK bash STDOUT:
|
558 | status=1
|
559 | status=1
|
560 | status=1
|
561 | ## END
|
562 |
|
563 | #### readonly a=(1 2) no_value c=(3 4) makes 'no_value' readonly
|
564 | readonly a=(1 2) no_value c=(3 4)
|
565 | no_value=x
|
566 | ## status: 1
|
567 | ## stdout-json: ""
|
568 | ## OK dash status: 2
|
569 |
|
570 | #### export a=1 no_value c=2
|
571 | no_value=foo
|
572 | export a=1 no_value c=2
|
573 | printenv.py no_value
|
574 | ## STDOUT:
|
575 | foo
|
576 | ## END
|
577 |
|
578 | #### local a=loc $var c=loc
|
579 | var='b'
|
580 | b=global
|
581 | echo $b
|
582 | f() {
|
583 | local a=loc $var c=loc
|
584 | argv.py "$a" "$b" "$c"
|
585 | }
|
586 | f
|
587 | ## STDOUT:
|
588 | global
|
589 | ['loc', '', 'loc']
|
590 | ## END
|
591 | ## BUG dash STDOUT:
|
592 | global
|
593 | ['loc', 'global', 'loc']
|
594 | ## END
|
595 |
|
596 | #### redirect after assignment builtin (what's going on with dash/bash/mksh here?)
|
597 | readonly x=$(stdout_stderr.py) 2>/dev/null
|
598 | echo done
|
599 | ## STDOUT:
|
600 | done
|
601 | ## END
|
602 | ## STDERR:
|
603 | STDERR
|
604 | ## END
|
605 | ## BUG zsh stderr-json: ""
|
606 |
|
607 | #### redirect after command sub (like case above but without assignment builtin)
|
608 | echo stdout=$(stdout_stderr.py) 2>/dev/null
|
609 | ## STDOUT:
|
610 | stdout=STDOUT
|
611 | ## END
|
612 | ## STDERR:
|
613 | STDERR
|
614 | ## END
|
615 |
|
616 | #### redirect after bare assignment
|
617 | x=$(stdout_stderr.py) 2>/dev/null
|
618 | echo done
|
619 | ## STDOUT:
|
620 | done
|
621 | ## END
|
622 | ## stderr-json: ""
|
623 | ## BUG bash STDERR:
|
624 | STDERR
|
625 | ## END
|
626 |
|
627 | #### redirect after declare -p
|
628 | case $SH in *dash) exit 99 ;; esac # stderr unpredictable
|
629 |
|
630 | foo=bar
|
631 | typeset -p foo 1>&2
|
632 |
|
633 | # zsh and mksh agree on exact output, which we don't really care about
|
634 | ## STDERR:
|
635 | typeset foo=bar
|
636 | ## END
|
637 | ## OK bash STDERR:
|
638 | declare -- foo="bar"
|
639 | ## END
|
640 | ## OK osh STDERR:
|
641 | declare -- foo=bar
|
642 | ## END
|
643 | ## N-I dash status: 99
|
644 | ## N-I dash stderr-json: ""
|
645 | ## stdout-json: ""
|
646 |
|
647 | #### declare -a arr does not remove existing arrays (OSH regression)
|
648 | case $SH in (dash) exit 99;; esac # dash does not support arrays
|
649 |
|
650 | declare -a arr
|
651 | arr=(foo bar baz)
|
652 | declare -a arr
|
653 | echo arr:${#arr[@]}
|
654 | ## STDOUT:
|
655 | arr:3
|
656 | ## END
|
657 | ## N-I dash status: 99
|
658 | ## N-I dash stdout-json: ""
|
659 |
|
660 | #### declare -A dict does not remove existing arrays (OSH regression)
|
661 | case $SH in (dash|mksh) exit 99;; esac # dash/mksh does not support associative arrays
|
662 |
|
663 | declare -A dict
|
664 | dict['foo']=hello
|
665 | dict['bar']=oil
|
666 | dict['baz']=world
|
667 | declare -A dict
|
668 | echo dict:${#dict[@]}
|
669 | ## STDOUT:
|
670 | dict:3
|
671 | ## END
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672 | ## N-I dash/mksh status: 99
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673 | ## N-I dash/mksh stdout-json: ""
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674 |
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