fish-shell/tests/checks/expansion.fish
Fabian Boehm 4b921cbc08 Clamp error carets to the end instead of refusing to print
This skipped printing a "^" line if the start or length of the error
was longer than the source.

That seems like the correc thing at first glance, however it means
that the caret line isn't skipped *if the file goes on*.

So, for example

```fish
echo "$abc["
```

by itself, in a file or via `fish -c`, would not print an error, but

```fish
echo "$abc["
true
```

would. That's not a great way to print errors.

So instead we just.. imagine the start was at most at the end.

The underlying issue why `echo "$abc["` causes this is that `wcstol`
didn't move the end pointer for the index value (because there is no
number there). I'd fix this, but apparently some of
our recursive variable calls absolutely rely on this position value.
2022-08-12 18:38:47 +02:00

336 lines
7.5 KiB
Fish

# RUN: %fish -C 'set -g fish %fish' %s
# caret position (#5812)
printf '<%s>\n' ($fish -c ' $f[a]' 2>&1)
# CHECK: <fish: Invalid index value>
# CHECK: < $f[a]>
# CHECK: < ^>
printf '<%s>\n' ($fish -c 'if $f[a]; end' 2>&1)
# CHECK: <fish: Invalid index value>
# CHECK: <if $f[a]; end>
# CHECK: < ^>
set a A
set aa AA
set aaa AAA
echo {$aa}a{1,2,3}(for a in 1 2 3; echo $a; end)
#CHECK: AAa11 AAa21 AAa31 AAa12 AAa22 AAa32 AAa13 AAa23 AAa33
# basic expansion test
echo {}
echo {apple}
echo {apple,orange}
#CHECK: {}
#CHECK: {apple}
#CHECK: apple orange
# expansion tests with spaces
echo {apple, orange}
echo { apple, orange, banana }
#CHECK: apple orange
#CHECK: apple orange banana
# expansion with spaces and cartesian products
echo \'{ hello , world }\'
#CHECK: 'hello' 'world'
# expansion with escapes
for phrase in {good\,, beautiful ,morning}
echo -n "$phrase "
end | string trim
echo
for phrase in {goodbye\,,\ cruel\ ,world\n}
echo -n $phrase
end
#CHECK: good, beautiful morning
#CHECK: goodbye, cruel world
# dual expansion cartesian product
echo { alpha, beta }\ {lambda, gamma }, | string replace -r ',$' ''
#CHECK: alpha lambda, beta lambda, alpha gamma, beta gamma
# expansion with subshells
for name in { (echo Meg), (echo Jo) }
echo $name
end
#CHECK: Meg
#CHECK: Jo
# subshells with expansion
for name in (for name in {Beth, Amy}; printf "$name\n"; end)
printf "$name\n"
end
#CHECK: Beth
#CHECK: Amy
echo {{a,b}}
#CHECK: {a} {b}
# Test expansion of variables
# We don't use the test utility function of the same name because we want
# different behavior. Specifically, that the expansion of any variables or
# other strings before we are invoked produce the expected expansion.
function expansion --description 'Prints argument count followed by arguments'
echo (count $argv) $argv
end
set -l foo
expansion "$foo"
expansion $foo
expansion "prefix$foo"
expansion prefix$foo
#CHECK: 1
#CHECK: 0
#CHECK: 1 prefix
#CHECK: 0
expansion "$$foo"
expansion $$foo
expansion "prefix$$foo"
expansion prefix$$foo
#CHECK: 1
#CHECK: 0
#CHECK: 1 prefix
#CHECK: 0
set -l foo ''
expansion "$foo"
expansion $foo
expansion "prefix$foo"
expansion prefix$foo
#CHECK: 1
#CHECK: 1
#CHECK: 1 prefix
#CHECK: 1 prefix
expansion "$$foo"
expansion $$foo
expansion "prefix$$foo"
expansion prefix$$foo
#CHECK: 1
#CHECK: 0
#CHECK: 1 prefix
#CHECK: 0
set -l foo bar
set -l bar
expansion "$$foo"
expansion $$foo
expansion "prefix$$foo"
expansion prefix$$foo
#CHECK: 1
#CHECK: 0
#CHECK: 1 prefix
#CHECK: 0
set -l bar baz
expansion "$$foo"
expansion $$foo
expansion "prefix$$foo"
expansion prefix$$foo
#CHECK: 1 baz
#CHECK: 1 baz
#CHECK: 1 prefixbaz
#CHECK: 1 prefixbaz
set -l bar baz quux
expansion "$$foo"
expansion $$foo
expansion "prefix$$foo"
expansion prefix$$foo
#CHECK: 1 baz quux
#CHECK: 2 baz quux
#CHECK: 1 prefixbaz quux
#CHECK: 2 prefixbaz prefixquux
set -l foo bar fooer fooest
set -l fooer
set -l fooest
expansion "$$foo"
expansion $$foo
expansion "prefix$$foo"
expansion prefix$$foo
#CHECK: 1 baz quux fooer fooest
#CHECK: 2 baz quux
#CHECK: 1 prefixbaz quux fooer fooest
#CHECK: 2 prefixbaz prefixquux
set -l fooer ''
expansion $$foo
expansion prefix$$foo
#CHECK: 3 baz quux
#CHECK: 3 prefixbaz prefixquux prefix
# Slices
set -l foo bar '' fooest
expansion "$$foo"
expansion $$foo
expansion "prefix$$foo"
expansion prefix$$foo
expansion $foo[-5..2] # No result, because the starting index is invalid and we force-reverse.
expansion $foo[-2..-1]
expansion $foo[-10..-5]
expansion (printf '%s\n' $foo)[-5..2]
expansion (printf '%s\n' $foo)[-2..-1]
expansion (printf '%s\n' $foo)[-10..-5]
expansion (echo one)[2..-1]
#CHECK: 1 baz quux fooest
#CHECK: 2 baz quux
#CHECK: 1 prefixbaz quux fooest
#CHECK: 2 prefixbaz prefixquux
#CHECK: 0
#CHECK: 2 fooest
#CHECK: 0
#CHECK: 0
#CHECK: 2 fooest
#CHECK: 0
#CHECK: 0
set -l foo
expansion "$foo[1]"
expansion $foo[1]
expansion "$foo[-1]"
expansion $foo[-1]
expansion "$foo[2]"
expansion $foo[2]
expansion "$foo[1 2]"
expansion $foo[1 2]
expansion "$foo[2 1]"
expansion $foo[2 1]
#CHECK: 1
#CHECK: 0
#CHECK: 1
#CHECK: 0
#CHECK: 1
#CHECK: 0
#CHECK: 1
#CHECK: 0
#CHECK: 1
#CHECK: 0
set -l foo a b c
expansion $foo[17]
expansion $foo[-17]
expansion $foo[17..18]
expansion $foo[4..-2]
#CHECK: 0
#CHECK: 0
#CHECK: 0
#CHECK: 0
set -l foo a
expansion $foo[2..-1]
#CHECK: 0
expansion $foo[0]
#CHECKERR: {{.*}}expansion.fish (line {{\d+}}): array indices start at 1, not 0.
#CHECKERR: expansion $foo[0]
#CHECKERR: ^
# see https://github.com/fish-shell/fish-shell/issues/8213
expansion $foo[1..0]
#CHECKERR: {{.*}}expansion.fish (line {{\d+}}): array indices start at 1, not 0.
#CHECKERR: expansion $foo[1..0]
#CHECKERR: ^
expansion $foo[-0]
#CHECKERR: {{.*}}expansion.fish (line {{\d+}}): array indices start at 1, not 0.
#CHECKERR: expansion $foo[-0]
#CHECKERR: ^
echo "$foo[d]"
#CHECKERR: {{.*}}expansion.fish (line {{\d+}}): Invalid index value
#CHECKERR: echo "$foo[d]"
#CHECKERR: ^
echo $foo[d]
#CHECKERR: {{.*}}expansion.fish (line {{\d+}}): Invalid index value
#CHECKERR: echo $foo[d]
#CHECKERR: ^
echo ()[1]
# No output
echo ()[d]
#CHECKERR: {{.*}}expansion.fish (line {{\d+}}): Invalid index value
#CHECKERR: echo ()[d]
#CHECKERR: ^
set -l outer out1 out2
set -l inner 1 2
echo $outer[$inner[2]]
#CHECK: out2
echo $outer[$inner[2..1]]
#CHECK: out2 out1
# Percent self
echo %selfNOT NOT%self \%self "%self" '%self'
echo %self | string match -qr '^\\d+$'
#CHECK: %selfNOT NOT%self %self %self %self
echo "All digits: $status"
#CHECK: All digits: 0
set paren ')'
echo $$paren
#CHECKERR: {{.*}}expansion.fish (line {{\d+}}): $) is not a valid variable in fish.
#CHECKERR: echo $$paren
#CHECKERR: ^
# Test tilde expansion
# On OS X, /tmp is symlinked to /private/tmp
# $PWD is our best bet for resolving it
set -l saved $PWD
cd (mktemp -d)
set tmpdir $PWD
cd $saved
mkdir $tmpdir/realhome
ln -s $tmpdir/realhome $tmpdir/linkhome
set expandedtilde (env HOME=$tmpdir/linkhome $fish -c 'echo ~')
if test $expandedtilde != $tmpdir/linkhome
echo '~ expands to' $expandedtilde ' - expected ' $tmpdir/linkhome
end
rm $tmpdir/linkhome
rmdir $tmpdir/realhome
rmdir $tmpdir
# Test path variables
set TEST_DELIMITER one two three
set TEST_DELIMITER_PATH one two three
echo TEST_DELIMITER: $TEST_DELIMITER "$TEST_DELIMITER"
echo TEST_DELIMITER_PATH: $TEST_DELIMITER_PATH "$TEST_DELIMITER_PATH"
#CHECK: TEST_DELIMITER: one two three one two three
#CHECK: TEST_DELIMITER_PATH: one two three one:two:three
set testvar ONE:TWO:THREE
echo "Not a path: $testvar" (count $testvar)
#CHECK: Not a path: ONE:TWO:THREE 1
set --path testvar $testvar
echo "As a path: $testvar" (count $testvar)
#CHECK: As a path: ONE:TWO:THREE 3
set testvar "$testvar:FOUR"
echo "Appended path: $testvar" (count $testvar)
#CHECK: Appended path: ONE:TWO:THREE:FOUR 4
set --unpath testvar $testvar
echo "Back to normal variable: $testvar" (count $testvar)
#CHECK: Back to normal variable: ONE TWO THREE FOUR 4
# Test fatal syntax errors
$fish -c 'echo $,foo'
#CHECKERR: fish: $, is not a valid variable in fish.
#CHECKERR: echo $,foo
#CHECKERR: ^
$fish -c 'echo {'
#CHECKERR: fish: Unexpected end of string, incomplete parameter expansion
#CHECKERR: echo {
#CHECKERR: ^
$fish -c 'echo {}}'
#CHECKERR: fish: Unexpected '}' for unopened brace expansion
#CHECKERR: echo {}}
#CHECKERR: ^
printf '<%s>\n' ($fish -c 'command (asd)' 2>&1)
#CHECK: <fish: Command substitutions not allowed>
#CHECK: <command (asd)>
#CHECK: < ^~~~^>
true
printf '<%s>\n' ($fish -c 'echo "$abc["' 2>&1)
#CHECK: <fish: Invalid index value>
#CHECK: <echo "$abc[">
#CHECK: < ^>