--- a/test/runtests.jl	Fri Jan 10 20:22:04 2025 +0100
+++ b/test/runtests.jl	Sat Jan 11 10:17:12 2025 +0100
@@ -1,4 +1,7 @@
+using Diffinitive
 using Test
+using JET
+using Aqua
 using Glob
 
 """
@@ -18,7 +21,7 @@
     run_testfiles(".", globs)
 end
 
-function  run_testfiles(path, globs)
+function run_testfiles(path, globs)
     for name ∈ readdir(path)
         filepath = joinpath(path, name)
 
@@ -29,25 +32,44 @@
         end
 
         if endswith(name, "_test.jl") && any(occursin.(globs, filepath))
-            printstyled("Running "; bold=true, color=:green)
-            print(filepath)
-
-            t_start = time()
-            @testset "$name" begin
-                include(filepath)
+            log_and_time(filepath) do
+                @testset "$name" begin
+                    include(filepath)
+                end
             end
-            t_end = time()
-
-            Δt = t_end - t_start
-            printstyled(" ($(round(Δt, digits=2)) s)"; color=:light_black)
-            println()
         end
     end
 end
 
+function log_and_time(f, msg)
+    printstyled("Running "; bold=true, color=:green)
+    print(msg)
+
+    t_start = time()
+    f()
+    t_end = time()
+    Δt = t_end - t_start
+    printstyled(" ($(round(Δt, digits=2)) s)"; color=:light_black)
+    println()
+end
+
 testsetname = isempty(ARGS) ? "Diffinitive.jl" : "["*join(ARGS, ", ")*"]"
 
 @testset "$testsetname" begin
+    if isempty(ARGS)
+        log_and_time("code quality tests using Aqua.jl") do
+            @testset "Code quality (Aqua.jl)" begin
+                Aqua.test_all(Diffinitive)
+            end
+        end
+
+        log_and_time("code linting using JET.jl") do
+            @testset "Code linting (JET.jl)" begin
+                JET.test_package(Diffinitive; target_defined_modules = true)
+            end
+        end
+    end
+
     run_testfiles(ARGS)
     println()
 end