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How can I compare truncated test results in DrRacket?
Actual value (make-ta ...) differs from (make-ta ...), the expected value.
I'm not super familiar with DrRacket (when last I used it it was DrScheme, which should tell you how old I am). I downloaded it off flathub, DDG'd ta-solver-starter.rkt, ran it, and here's what I saw: 
Not sure what to tell you!
I appreciate the effort! Further to this, I seems like if I change my function and the expected result to compare lists instead of 'make-ta' they pass!
(check-expect (sub-slot 1 SOBA) (make-ta "Soba" 1 (list 3))) ; subtract one shift <--- FAIL
(check-expect (sub-slot 3 SOBA) (make-ta "Soba" 1 (list 1))) ; subtract a different shift <--- FAIL
(define (sub-slot slot ta)
(cond [(and (> (ta-max ta) 0) (> (length (ta-avail ta)) 1))
(make-ta (ta-name ta)
(sub1 (ta-max ta))
(remq slot (ta-avail ta)))]
[else empty]))
(check-expect (sub-slot 1 SOBA) (make-ta "Soba" 1 (list 3))) ; subtract one shift <--- FAIL
(check-expect (sub-slot 3 SOBA) (list "Soba" 1 (list 1))) ; subtract a different shift <--- PASS
(define (sub-slot slot ta)
(cond [(and (> (ta-max ta) 0) (> (length (ta-avail ta)) 1))
(list (ta-name ta)
(sub1 (ta-max ta))
(remq slot (ta-avail ta)))]
[else empty]))
This is the final problem of the course ๐ . I'm going to try and get to the bottom of this rather than work around with lists (which is what I did last time). I must have some misunderstanding with make- functions...
https://docs.racket-lang.org/guide/define-struct.html#(part._trans-struct) Making the structs transparent seems to be a better work-around for now.