test: add Aqua and fix errors

- Fix method ambiguity for `integrated_interaction`.
- Fix compat entries.

Author: FedericoStra

Project.toml

@@ -12,15 +12,19 @@ RecursiveArrayTools = "731186ca-8d62-57ce-b412-fbd966d074cd"
 SpecialFunctions = "276daf66-3868-5448-9aa4-cd146d93841b"
 
 [compat]
+Aqua = "0.8"
 DocStringExtensions = "0.9"
 RecipesBase = "1"
 RecursiveArrayTools = "2, 3"
 SpecialFunctions = "2"
+Test = "1"
+TestSetExtensions = "2, 3"
 julia = "1.4"
 
 [extras]
+Aqua = "4c88cf16-eb10-579e-8560-4a9242c79595"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 TestSetExtensions = "98d24dd4-01ad-11ea-1b02-c9a08f80db04"
 
 [targets]
-test = ["Test", "TestSetExtensions"]
+test = ["Aqua", "Test", "TestSetExtensions"]

src/interactions.jl

@@ -49,7 +49,7 @@ See also [`sampled_interaction`](@ref), [`compute_interaction`](@ref).
 """
 function integrated_interaction end
 
-function integrated_interaction(x::Real, W, ys::AbstractVector{<:Real}, dens_diff::AbstractVector{<:Real}=diff(pwc_density(ys)))
+function integrated_interaction(x::Real, W::Function, ys::AbstractVector{<:Real}, dens_diff::AbstractVector{<:Real}=diff(pwc_density(ys)))
     # eachindex(dens_diff) == eachindex(ys) || throw(DimensionMismatch("`ys` and `dens_diff` must have the same indices"))
     # -sum(i -> (@inbounds W(x - ys[i]) * dens_diff[i]), eachindex(ys, dens_diff))
     -sum(p -> W(x - p[1]) * p[2], zip(ys, dens_diff))

test/Aqua.jl

@@ -0,0 +1,4 @@
+@testset "Aqua tests" begin
+    import Aqua
+    Aqua.test_all(ConservationLawsParticles)
+end

test/runtests.jl

@@ -3,6 +3,8 @@ using RecursiveArrayTools
 using Test
 using TestSetExtensions
 
+include("Aqua.jl")
+
 @testset ExtendedTestSet "ConservationLawsParticles.jl" begin
     @testset "densities" begin
         include("test_densities.jl")