proc setup {} {
    assert_bash_exec {unset COMP_CWORD COMP_LINE COMP_POINT COMP_WORDS}
    save_env
}


proc teardown {} {
    assert_bash_exec {unset COMP_CWORD COMP_LINE COMP_POINT COMP_WORDS}
    # Delete 'COMP_WORDBREAKS' occupying two lines
    assert_env_unmodified {
        /COMP_WORDBREAKS=/{N
        d
        }
    }
}


setup


set test "_get_cword should run without errors"
assert_bash_exec {_get_cword > /dev/null} $test


sync_after_int


# See also ./lib/completions/alias.exp.  Here `_get_cword' is actually tested
# by moving the cursor left into the current word.


set test "a b| should return b";  # | = cursor position
set cmd {COMP_WORDS=(a b); COMP_CWORD=1; COMP_LINE='a b'; COMP_POINT=3; _get_cword; echo}
assert_bash_list b $cmd $test


sync_after_int


set test "a | should return nothing";  # | = cursor position
set cmd {COMP_WORDS=(a); COMP_CWORD=1; COMP_LINE='a '; COMP_POINT=2; _get_cword}
send "$cmd\r"
expect -ex "$cmd\r\n/@" {pass "$test"}


sync_after_int


set test "a b | should return nothing";  # | = cursor position
set cmd {COMP_WORDS=(a b ''); COMP_CWORD=2; COMP_LINE='a b '; COMP_POINT=4; _get_cword}
send "$cmd\r"
expect -ex "$cmd\r\n/@" {pass "$test"}


sync_after_int


set test "a b | with WORDBREAKS -= : should return nothing";  # | = cursor position
set cmd {COMP_WORDS=(a b ''); COMP_CWORD=2; COMP_LINE='a b '; COMP_POINT=4; _get_cword :}
send "$cmd\r"
expect -ex "$cmd\r\n/@" {pass "$test"}


sync_after_int


set test "a b|c should return b";  # | = cursor position
set cmd {COMP_WORDS=(a bc); COMP_CWORD=1; COMP_LINE='a bc'; COMP_POINT=3; _get_cword; echo}
assert_bash_list b $cmd $test


sync_after_int


set test {a b\ c| should return b\ c};  # | = cursor position
set cmd {COMP_WORDS=(a 'b\ c'); COMP_CWORD=1; COMP_LINE='a b\ c'; COMP_POINT=6; _get_cword; echo}
assert_bash_list {"b\\ c"} $cmd $test


sync_after_int


set test {a b\| c should return b\ };  # | = cursor position
set cmd {COMP_WORDS=(a 'b\ c'); COMP_CWORD=1; COMP_LINE='a b\ c'; COMP_POINT=4; _get_cword; echo}
assert_bash_list {"b\\"} $cmd $test


sync_after_int


set test {a "b\| should return "b\ };  # | = cursor position
set cmd {COMP_WORDS=(a '"b\'); COMP_CWORD=1; COMP_LINE='a "b\'; COMP_POINT=5; _get_cword; echo}
assert_bash_list {"\"b\\"} $cmd $test


sync_after_int


set test {a 'b c| should return 'b c};  # | = cursor position
if {
    [lindex $::BASH_VERSINFO 0] == 4 && 
    [lindex $::BASH_VERSINFO 1] == 0 &&
    [lindex $::BASH_VERSINFO 2] < 35
} {
    set cmd {COMP_WORDS=(a "'" b c); COMP_CWORD=3}
} else {
    set cmd {COMP_WORDS=(a "'b c"); COMP_CWORD=1}
}
append cmd {; COMP_LINE="a 'b c"; COMP_POINT=6; _get_cword}
send "$cmd\r"
expect -ex "$cmd\r\n"
expect {
    -ex "'b c/@" { pass "$test" }
    -ex "c/@" { 
        if {
            [lindex $::BASH_VERSINFO 0] == 4 &&
            [lindex $::BASH_VERSINFO 1] == 0 &&
            [lindex $::BASH_VERSINFO 2] < 35
        } {xfail "$test"} {fail "$test"}
    }
}


sync_after_int


set test {a "b c| should return "b c};  # | = cursor position
if {
    [lindex $::BASH_VERSINFO 0] == 4 && 
    [lindex $::BASH_VERSINFO 1] == 0 &&
    [lindex $::BASH_VERSINFO 2] < 35
} {
    set cmd {COMP_WORDS=(a "\"" b c); COMP_CWORD=3}
} else {
    set cmd {COMP_WORDS=(a "\"b c"); COMP_CWORD=1}
}
append cmd {; COMP_LINE="a \"b c"; COMP_POINT=6; _get_cword};
send "$cmd\r"
expect -ex "$cmd\r\n"
expect {
    -ex "\"b c/@" { pass "$test" }
    -ex "c/@" {
        if {
            [lindex $::BASH_VERSINFO 0] == 4 &&
            [lindex $::BASH_VERSINFO 1] == 0 &&
            [lindex $::BASH_VERSINFO 2] < 35
        } {xfail "$test"} {fail "$test"}
    }
}


sync_after_int


set test {a b:c| with WORDBREAKS += : should return b:c (bash-3) or c (bash-4)};  # | = cursor position
if {[lindex $::BASH_VERSINFO 0] <= 3} {
    set cmd {COMP_WORDS=(a "b:c"); COMP_CWORD=1}
    set expected b:c
} else {
    set cmd {add_comp_wordbreak_char :; COMP_WORDS=(a b : c); COMP_CWORD=3}
    set expected c
}
append cmd {; COMP_LINE='a b:c'; COMP_POINT=5; _get_cword; echo}
assert_bash_list $expected $cmd $test


sync_after_int


set test {a b:c| with WORDBREAKS -= : should return b:c};  # | = cursor position
if {[lindex $::BASH_VERSINFO 0] <= 3} {
    set cmd {COMP_WORDS=(a "b:c"); COMP_CWORD=1}
} else {
    set cmd {COMP_WORDS=(a b : c); COMP_CWORD=3}
}
append cmd {; COMP_LINE='a b:c'; COMP_POINT=5; _get_cword :; echo}
assert_bash_list b:c $cmd $test


sync_after_int


set test {a b c:| with WORDBREAKS -= : should return c:};  # | = cursor position
if {[lindex $::BASH_VERSINFO 0] <= 3} {
    set cmd {COMP_WORDS=(a b c:); COMP_CWORD=2}
} else {
    set cmd {COMP_WORDS=(a b c :); COMP_CWORD=3}
}
append cmd {; COMP_LINE='a b c:'; COMP_POINT=6; _get_cword :; echo}
assert_bash_list c: $cmd $test


sync_after_int


set test {a :| with WORDBREAKS -= : should return :};  # | = cursor position
set cmd {COMP_WORDS=(a :); COMP_CWORD=1; COMP_LINE='a :'; COMP_POINT=3; _get_cword :; echo}
assert_bash_list : $cmd $test


sync_after_int


set test {a b::| with WORDBREAKS -= : should return b::};  # | = cursor position
if {[lindex $::BASH_VERSINFO 0] <= 3} {
    set cmd {COMP_WORDS=(a "b::"); COMP_CWORD=1}
} else {
    set cmd {COMP_WORDS=(a b ::); COMP_CWORD=2}
}
append cmd {; COMP_LINE='a b::'; COMP_POINT=5; _get_cword :; echo}
assert_bash_list b:: $cmd $test


sync_after_int


# This test makes sure `_get_cword' doesn't use `echo' to return it's value,
# because -n might be interpreted by `echo' and thus will not be returned.
set test "a -n| should return -n";  # | = cursor position
set cmd {COMP_WORDS=(a -n); COMP_CWORD=1; COMP_LINE='a -n'; COMP_POINT=4; _get_cword; echo}
assert_bash_list -n $cmd $test


sync_after_int


set test {a b>c| should return c};  # | = cursor position
set cmd {COMP_WORDS=(a b \> c); COMP_CWORD=3; COMP_LINE='a b>c'; COMP_POINT=5; _get_cword; echo}
assert_bash_list c $cmd $test


sync_after_int


set test {a b=c| should return b=c (bash-3) or c (bash-4)};  # | = cursor position
if {[lindex $::BASH_VERSINFO] <= 3} {
    set cmd {COMP_WORDS=(a "b=c"); COMP_CWORD=1}
    set expected b=c
} else {
    set cmd {COMP_WORDS=(a b = c); COMP_CWORD=3}
    set expected c
}
append cmd {; COMP_LINE='a b=c'; COMP_POINT=5; _get_cword; echo}
assert_bash_list $expected $cmd $test


sync_after_int


set test {a *| should return *};  # | = cursor position
set cmd {COMP_WORDS=(a \*); COMP_CWORD=1; COMP_LINE='a *'; COMP_POINT=4; _get_cword; echo}
assert_bash_list * $cmd $test


sync_after_int


set test {a $(b c| should return $(b c};  # | = cursor position
set cmd {COMP_WORDS=(a '$(b c'); COMP_CWORD=1; COMP_LINE='a $(b c'; COMP_POINT=7; _get_cword}
#assert_bash_list {{$(b\ c}} $cmd $test
send "$cmd\r"
expect -ex "$cmd\r\n"
expect {
    -ex "\$(b c/@" { pass "$test" }
    # Expected failure on bash-4
    -ex "c/@" { xfail "$test" }
}


sync_after_int


set test {a $(b c\ d| should return $(b c\ d};  # | = cursor position
set cmd {COMP_WORDS=(a '$(b c\ d'); COMP_CWORD=1; COMP_LINE='a $(b c\ d'; COMP_POINT=10; _get_cword}
#assert_bash_list {{$(b\ c\\\ d}} $cmd $test
send "$cmd\r"
expect -ex "$cmd\r\n"
expect {
    -ex "\$(b c\\ d/@" { pass "$test" }
    # Expected failure on bash-4
    -ex "c\\ d/@" { xfail "$test" }
}


sync_after_int


set test {a 'b&c| should return 'b&c};  # | = cursor position
if {
    [lindex $::BASH_VERSINFO 0] == 4 && 
    [lindex $::BASH_VERSINFO 1] == 0 &&
    [lindex $::BASH_VERSINFO 2] < 35
} {
    set cmd {COMP_WORDS=(a "'" b "&" c); COMP_CWORD=4}
} else {
    set cmd {COMP_WORDS=(a "'b&c"); COMP_CWORD=1}
}
append cmd {; COMP_LINE="a 'b&c"; COMP_POINT=6; _get_cword}
send "$cmd\r"
expect -ex "$cmd\r\n"
expect {
    -ex "'b&c/@" { pass "$test" }
    -ex "c/@" { 
        if {
            [lindex $::BASH_VERSINFO 0] == 4 &&
            [lindex $::BASH_VERSINFO 1] == 0 &&
            [lindex $::BASH_VERSINFO 2] < 35
        } {xfail "$test"} {fail "$test"}
    }
}


sync_after_int


teardown