package require testing section "basic dict" test dict-1.1 "Basic dict" { set d [dict create] dict set d fruit apple dict set d car holden #puts "d=$d" #puts "d(fruit)=$d(fruit)" dict get $d car } {holden} catch {unset d} test dict-2.1 "Dict via reference" { set d [dict create] dict set d fruit apple dict set d car holden # now create a dictionary reference set dref [ref $d dict] dict get [getref $dref] car } {holden} test dict-2.2 "Modify dict via reference" { # Get the value out of the refernence set d [getref $dref] # Modify it dict set d car toyota # And put the new value back setref $dref $d # Finally check it dict get [getref $dref] car } {toyota} test dict-2.3 "Modify dict via reference - one line" { # Get the value out of the refernence set d [getref $dref] setref $dref [dict set d car toyota] # Finally check it dict get [getref $dref] car } {toyota} testreport