update runtests.jl (#788)

[no important files changed]

Author: depial

exercises/practice/knapsack/runtests.jl

@@ -2,46 +2,43 @@ using Test
 
 include("knapsack.jl")
 
-struct Item
-    weight
-    value
-end
+Item = NamedTuple{(:weight, :value), Tuple{Int, Int}}
 
 @testset verbose = true "tests" begin
     @testset "no items" begin
         @test maximum_value(100, []) == 0
     end
 
     @testset "one item, too heavy" begin
-        @test maximum_value(10, [Item(100, 1),]) == 0
+        @test maximum_value(10, [Item((100, 1)),]) == 0
     end
 
     @testset "five items (cannot be greedy by weight)" begin
-        items = [Item(2, 5), Item(2, 5), Item(2, 5), Item(2, 5), Item(10, 21)]
+        items = [Item((2, 5)), Item((2, 5)), Item((2, 5)), Item((2, 5)), Item((10, 21))]
         @test maximum_value(10, items) == 21
     end
 
     @testset "five items (cannot be greedy by value)" begin
-        items = [Item(2, 20), Item(2, 20), Item(2, 20), Item(2, 20), Item(10, 50)]
+        items = [Item((2, 20)), Item((2, 20)), Item((2, 20)), Item((2, 20)), Item((10, 50))]
         @test maximum_value(10, items) == 80
     end
 
     @testset "example knapsack" begin
-        items = [Item(5, 10), Item(4, 40), Item(6, 30), Item(4, 50)]
+        items = [Item((5, 10)), Item((4, 40)), Item((6, 30)), Item((4, 50))]
         @test maximum_value(10, items) == 90
     end
 
     @testset "8 items" begin
-        items = [Item(25, 350), Item(35, 400), Item(45, 450), Item(5, 20), 
-        Item(25, 70), Item(3, 8), Item(2, 5), Item(2, 5)]
+        items = [Item((25, 350)), Item((35, 400)), Item((45, 450)), Item((5, 20)), 
+        Item((25, 70)), Item((3, 8)), Item((2, 5)), Item((2, 5))]
         @test maximum_value(104, items) == 900
     end
 
     @testset "15 items" begin
-        items = [Item(70, 135), Item(73, 139), Item(77, 149), Item(80, 150), 
-                 Item(82, 156), Item(87, 163), Item(90, 173), Item(94, 184),
-                 Item(98, 192), Item(106, 201), Item(110, 210), Item(113, 214), 
-                 Item(115, 221), Item(118, 229), Item(120, 240)]
+        items = [Item((70, 135)), Item((73, 139)), Item((77, 149)), Item((80, 150)), 
+                 Item((82, 156)), Item((87, 163)), Item((90, 173)), Item((94, 184)),
+                 Item((98, 192)), Item((106, 201)), Item((110, 210)), Item((113, 214)), 
+                 Item((115, 221)), Item((118, 229)), Item((120, 240))]
         @test maximum_value(750, items) == 1458
     end
 end