Add tests

Author: blegat

test/mutable_arithmetics.jl

@@ -0,0 +1,17 @@
+using Test
+using MutableArithmetics
+using SymbolicUtils
+
+@syms x::Real y::Real
+v = repeat([x, y], 10)
+s = sum(v, init = 0)
+@test s.dict[x] == 10
+@test s.dict[y] == 10
+@test isequal(s, 10x + 10y) # ????
+
+a = x + y
+b = 2x + y
+c = add!!(a, b)
+@test c.dict[x] == 3
+@test c.dict[y] == 2
+@test isequal(c, 3x + 2y)

test/runtests.jl

@@ -18,5 +18,6 @@ using Pkg, Test, SafeTestsets
         @safetestset "Adjoints" begin include("adjoints.jl") end
         @safetestset "Hash Consing" begin include("hash_consing.jl") end
         @safetestset "Cache macro" begin include("cache_macro.jl") end
+        @safetestset "Cache macro" begin include("mutable_arithmetics.jl") end
     end
 end