# Test basic add and list
abbr __abbr1 alpha beta gamma
abbr | grep __abbr1

# Erasing one that doesn't exist should do nothing
abbr --erase NOT_AN_ABBR
abbr | grep __abbr1

# Adding existing one should be idempotent
abbr __abbr1 alpha beta gamma
abbr | grep __abbr1

# Replacing
abbr __abbr1 delta
abbr | grep __abbr1

# -s and --show tests
abbr -s | grep __abbr1
abbr --show | grep __abbr1

# Test erasing
abbr -e __abbr1
abbr | grep __abbr1

# Ensure we escape special characters on output
abbr '~__abbr2' '$xyz'
abbr | grep __abbr2
abbr -e '~__abbr2'

# Ensure we handle leading dashes in abbreviation names properly
abbr -- '--__abbr3' 'xyz'
abbr | grep __abbr3
abbr -e -- '--__abbr3'

# Ensure we are not recognizing later "=" as separators
abbr d2 env a=b banana
abbr -l | string match -q d2; or echo "= test failed"

abbr "a b c" "d e f"; or true

# Test renaming
abbr __abbr4 omega
abbr | grep __abbr5
abbr -r __abbr4 __abbr5
abbr | grep __abbr5
abbr -e __abbr5
abbr | grep __abbr4

# Test renaming a nonexistent abbreviation
abbr -r __abbr6 __abbr; or true

# Test renaming to a abbreviation with spaces
abbr __abbr4 omega
abbr -r __abbr4 "g h i"; or true
abbr -e __abbr4

# Test renaming without arguments
abbr __abbr7 omega
abbr -r __abbr7; or true

# Test renaming with too many arguments
abbr __abbr8 omega
abbr -r __abbr8 __abbr9 __abbr10; or true
abbr | grep __abbr8
abbr | grep __abbr9; or true
abbr | grep __abbr10; or true

# Test renaming to existing abbreviation
abbr __abbr11 omega11
abbr __abbr12 omega12
abbr -r __abbr11 __abbr12; or true