200 lines
8.0 KiB
Racket
200 lines
8.0 KiB
Racket
#lang racket
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(require rackunit "main.rkt")
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(define test-grid (grid (list
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(line (point 0 0) (point 0 1) 1)
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(line (point 0 1) (point 1 1) 0)
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(line (point 1 0) (point 1 1) 1)
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(line (point 0 0) (point 1 0) 0)
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(line (point 1 1) (point 2 1) 0)
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(line (point 2 0) (point 2 1) 1)
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(line (point 2 0) (point 3 0) 0)
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(line (point 3 3) (point 3 4) 0)
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(line (point 3 3) (point 4 3) 0)
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(line (point 4 3) (point 4 4) 0)
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(line (point 3 4) (point 4 4) 0)) 6 6))
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(test-case
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"total-moves"
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(check-equal? (total-moves (grid '() 2 2)) 4)
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(check-equal? (total-moves (grid '() 4 5)) 31)
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(check-equal? (total-moves (grid '() 2 6)) 16))
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(test-case
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"same-position?"
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(check-true (same-position? (line (point 0 0) (point 0 1) 1)
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(line (point 0 0) (point 0 1) 0)))
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(check-true (same-position? (line (point 0 0) (point 0 1) 1)
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(line (point 0 1) (point 0 0) 0)))
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(check-true (same-position? (line (point 0 2) (point 0 1) 0)
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(line (point 0 2) (point 0 1) 0)))
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(check-false (same-position? (line (point 0 0) (point 0 1) 1)
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(line (point 2 4) (point 0 3) 0))))
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(test-case
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"valid-length?"
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(check-true (valid-length? (line (point 0 0) (point 0 1) 1)))
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(check-true (valid-length? (line (point 0 1) (point 0 0) 1)))
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(check-false (valid-length? (line (point 0 0) (point 1 1) 0)))
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(check-false (valid-length? (line (point 0 0) (point 0 2) 1)))
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(check-false (valid-length? (line (point 0 0) (point 0 2) 1))))
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(test-case
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"boxes-for"
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(check-equal? (boxes-for (line (point 0 0) (point 0 1) 1) test-grid) (list (point 0 0)))
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(check-equal? (boxes-for (line (point 2 1) (point 2 2) 1) test-grid) (list (point 2 1) (point 1 1)))
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(check-equal? (boxes-for (line (point 0 0) (point 1 0) 1) test-grid) (list (point 0 0)))
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(check-equal? (boxes-for (line (point 1 1) (point 2 1) 1) test-grid) (list (point 1 1) (point 1 0)))
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(check-equal? (boxes-for (line (point 0 5) (point 1 5) 1) test-grid) (list (point 0 4)))
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(check-equal? (boxes-for (line (point 5 0) (point 5 1) 0) test-grid) (list (point 4 0))))
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(test-case
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"vertical?"
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(check-false (vertical? (line (point 2 0) (point 3 0) 0)))
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(check-true (vertical? (line (point 0 5) (point 0 6) 0))))
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(test-case
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"horizontal?"
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(check-true (horizontal? (line (point 2 0) (point 3 0) 0)))
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(check-false (horizontal? (line (point 0 5) (point 0 6) 0))))
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(test-case
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"box-in-grid?"
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(check-true (box-in-grid? test-grid (point 0 0)))
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(check-true (box-in-grid? test-grid (point 2 4)))
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(check-false (box-in-grid? test-grid (point 0 5)))
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(check-false (box-in-grid? test-grid (point 5 0)))
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(check-false (box-in-grid? test-grid (point -1 3))))
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(test-case
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"completes-boxes"
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(define test-grid
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(grid (list
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(line (point 0 0) (point 0 1) 1)
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(line (point 0 1) (point 1 1) 0)
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(line (point 1 0) (point 1 1) 1)
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(line (point 0 2) (point 0 3) 1)
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(line (point 0 3) (point 1 3) 1)
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(line (point 0 2) (point 1 2) 1)
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(line (point 0 4) (point 0 5) 0)
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(line (point 0 4) (point 1 4) 1)
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(line (point 1 4) (point 1 5) 0)
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(line (point 3 0) (point 4 0) 0)
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(line (point 3 0) (point 3 1) 1)
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(line (point 4 0) (point 4 1) 0)
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(line (point 3 5) (point 4 5) 1)
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(line (point 3 4) (point 3 5) 0)
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(line (point 3 4) (point 4 4) 1)
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(line (point 4 5) (point 5 5) 1)
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(line (point 4 4) (point 5 4) 0)
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(line (point 5 4) (point 5 5) 1)) 6 6)) ; all possible unfinished boxes (plus an unfinished double)
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(check-equal? (completes-boxes test-grid (line (point 0 0) (point 1 0) 0)) 1)
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(check-equal? (completes-boxes test-grid (line (point 1 2) (point 1 3) 0)) 1)
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(check-equal? (completes-boxes test-grid (line (point 3 1) (point 4 1) 0)) 1)
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(check-equal? (completes-boxes test-grid (line (point 0 5) (point 1 5) 0)) 1)
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(check-equal? (completes-boxes test-grid (line (point 4 4) (point 4 5) 0)) 2)
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(check-equal? (completes-boxes test-grid (line (point 1 0) (point 2 0) 1)) 0))
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(test-case
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"valid-move?"
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(define test-grid (grid (list
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(line (point 0 0) (point 0 1) 1)
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(line (point 0 1) (point 0 2) 0)
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(line (point 3 2) (point 3 3) 0)) 6 6))
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(check-false (valid-move? (line (point 0 0) (point 0 1) 1) test-grid))
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(check-true (valid-move? (line (point 0 2) (point 0 3) 0) test-grid)) ; not overwriting existing moves
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(check-false (valid-move? (line (point 0 2) (point 0 1) 1) test-grid)) ; moving forward
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(check-false (valid-move? (line (point 0 0) (point 0 2) 1) test-grid)) ; valid length check
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(check-false (valid-move? (line (point (+ (grid-width test-grid) 1) 0) (point 0 2) 1) test-grid))
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(check-false (valid-move? (line (point (+ (grid-width test-grid) 1) 0) (point 0 2) 1) test-grid))) ; out of bounds
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(test-case
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"out-of-bounds?"
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(check-false (out-of-bounds? (point 0 0) test-grid))
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(check-false (out-of-bounds? (point 0 (- (grid-width test-grid) 1)) test-grid))
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(check-true (out-of-bounds? (point (grid-width test-grid) 0) test-grid))
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(check-true (out-of-bounds? (point -2 0) test-grid))
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(check-true (out-of-bounds? (point 0 -2) test-grid)))
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(test-case
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"forwards?"
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(check-true (forwards? (line (point 0 0) (point 0 1) 1)))
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(check-true (forwards? (line (point 0 1) (point 1 1) 1)))
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(check-false (forwards? (line (point 1 1) (point 0 0) 0))))
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(test-case
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"point+"
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(check-equal? (point+ (point 0 0) (point 1 2)) (point 1 2))
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(check-equal? (point+ (point 2 4) (point 5 0)) (point 7 4))
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(check-equal? (point+ (point 0 0) (point 0 0)) (point 0 0)))
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(test-case
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"count-square"
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(check-equal? (count-square (point 0 0) test-grid) 4)
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(check-equal? (count-square (point 1 0) test-grid) 3)
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(check-equal? (count-square (point 2 0) test-grid) 2)
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(check-equal? (count-square (point 3 2) test-grid) 1)
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(check-equal? (count-square (point 0 4) test-grid) 0))
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(test-case
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"append-move"
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(check-equal? (append-move test-grid (line (point 2 2) (point 2 3) 0)) (grid (append
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(grid-lines test-grid)
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(list (line (point 2 2) (point 2 3) 0)))
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(grid-width test-grid) (grid-height test-grid)))
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(check-equal? (append-move test-grid (line (point 0 0) (point 0 1) 0)) test-grid))
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(test-case
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"valid-moves"
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(check-equal? (valid-moves test-grid) (list
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(line (point 0 1) (point 0 2) 1)
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(line (point 0 2) (point 1 2) 1)
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(line (point 0 2) (point 0 3) 1)
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(line (point 0 3) (point 1 3) 1)
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(line (point 0 3) (point 0 4) 1)
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(line (point 0 4) (point 1 4) 1)
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(line (point 0 4) (point 0 5) 1)
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(line (point 0 5) (point 1 5) 1)
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(line (point 1 0) (point 2 0) 1)
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(line (point 1 1) (point 1 2) 1)
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(line (point 1 2) (point 2 2) 1)
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(line (point 1 2) (point 1 3) 1)
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(line (point 1 3) (point 2 3) 1)
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(line (point 1 3) (point 1 4) 1)
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(line (point 1 4) (point 2 4) 1)
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(line (point 1 4) (point 1 5) 1)
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(line (point 1 5) (point 2 5) 1)
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(line (point 2 1) (point 3 1) 1)
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(line (point 2 1) (point 2 2) 1)
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(line (point 2 2) (point 3 2) 1)
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(line (point 2 2) (point 2 3) 1)
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(line (point 2 3) (point 3 3) 1)
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(line (point 2 3) (point 2 4) 1)
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(line (point 2 4) (point 3 4) 1)
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(line (point 2 4) (point 2 5) 1)
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(line (point 2 5) (point 3 5) 1)
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(line (point 3 0) (point 4 0) 1)
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(line (point 3 0) (point 3 1) 1)
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(line (point 3 1) (point 4 1) 1)
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(line (point 3 1) (point 3 2) 1)
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(line (point 3 2) (point 4 2) 1)
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(line (point 3 2) (point 3 3) 1)
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(line (point 3 4) (point 3 5) 1)
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(line (point 3 5) (point 4 5) 1)
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(line (point 4 0) (point 5 0) 1)
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(line (point 4 0) (point 4 1) 1)
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(line (point 4 1) (point 5 1) 1)
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(line (point 4 1) (point 4 2) 1)
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(line (point 4 2) (point 5 2) 1)
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(line (point 4 2) (point 4 3) 1)
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(line (point 4 3) (point 5 3) 1)
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(line (point 4 4) (point 5 4) 1)
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(line (point 4 4) (point 4 5) 1)
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(line (point 4 5) (point 5 5) 1)
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(line (point 5 0) (point 5 1) 1)
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(line (point 5 1) (point 5 2) 1)
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(line (point 5 2) (point 5 3) 1)
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(line (point 5 3) (point 5 4) 1)
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(line (point 5 4) (point 5 5) 1)))) |