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# a start at a test suite for what it means for an array to be set or unset and
# how to test that state
typeset -A A
A[a]=1
typeset -a a
a[1]=1
if [ -v A ]; then echo assoc 1; else echo assoc 1 unset; fi
if [ -v a ]; then echo array 1; else echo array 1 unset; fi
if [ -v "${A[@]}" ]; then echo assoc 2; else echo assoc 2 unset; fi
if [ -v "${a[@]}" ]; then echo array 2; else echo array 2 unset; fi
echo ${A-unset1}
echo ${a-unset2}
echo ${A[@]-unset3}
echo ${a[@]-unset4}
echo ${#A[@]}
echo ${#a[@]}
typeset -A B
typeset -a b
scalar1=foo
scalar2=
if [ -v A[@] ]; then echo assoc A; else echo assoc A unset; fi
if [ -v a[@] ]; then echo array a; else echo array a unset; fi
if [ -v B[@] ]; then echo assoc B; else echo assoc B unset; fi
if [ -v b[@] ]; then echo array b; else echo array b unset; fi
if [ -v scalar1[@] ]; then echo scalar 1; else echo scalar 1 unset; fi
if [ -v scalar2[@] ]; then echo scalar 2; else echo scalar 2 unset; fi
if [ -v scalar3[@] ]; then echo scalar 3; else echo scalar 3 unset; fi
unset a A
declare -A assoc=([one]=one [two]=two [three]=three)
declare -a array=(one two three)
scalar="one two three"
scalar2=
recho "${scalar[@]}"
echo assoc: ${#assoc[@]}
echo array: ${#array[@]}
echo scalar: ${#scalar}
echo scalar: ${#scalar[@]}
echo scalar: ${#scalar2}
echo scalar: ${#scalar2[@]}
echo scalar: ${#scalar3}
echo scalar: ${#scalar3[@]}
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