added tests but need to do rewrites. focus on GPU execution for now

package/test/ExpressionProcessing.jl

@@ -0,0 +1,31 @@
+expressions = Vector{Expr}(undef, 1)
+variables = Matrix{Float64}(undef, 1,2)
+parameters = Vector{Vector{Float64}}(undef, 1)
+
+# Resulting value should be 10
+expressions[1] = :(x1 + 1 * x2 + p1)
+variables[1,1] = 2
+variables[1,2] = 3
+parameters[1] = Vector{Float64}(undef, 1)
+parameters[1][1] = 5
+
+@testset "Test symtable construction" begin
+	symtable = ExpressionExecutorCuda.ExpressionProcessing.construct_symtable(expressions, variables, parameters)
+	@test haskey(symtable, (expressions[1], :x1))
+	@test haskey(symtable, (expressions[1], :x2))
+	@test haskey(symtable, (expressions[1], :p1))
+
+	@test symtable[(expressions[1], :x1)] ≈ 2.0 atol=0.01
+	@test symtable[(expressions[1], :x2)] ≈ 3.0 atol=0.01
+	@test symtable[(expressions[1], :p1)] ≈ 5.0 atol=0.01
+end
+
+@testset "Test variable replacement in expression" begin
+	symtable = ExpressionExecutorCuda.ExpressionProcessing.construct_symtable(expressions, variables, parameters)
+	println(keys(symtable))
+	exprCopy = deepcopy(expressions[1])
+	ExpressionExecutorCuda.ExpressionProcessing.replace_variables!(exprCopy, symtable, expressions[1])
+
+	dump(exprCopy)
+	@test eval(exprCopy) == 10 # If it can be evaluated, it means all variables have been replaced, as there are no globally defined variables
+end

package/test/Project.toml

@@ -0,0 +1,2 @@
+[deps]
+Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"

package/test/runtests.jl

@@ -2,5 +2,5 @@ using ExpressionExecutorCuda
 using Test
 
 @testset "ExpressionExecutorCuda.jl" begin
-    # Write your tests here.
+	include("ExpressionProcessing.jl")
 end