(namespace test
  (def target (lookup __test__ null))

  (defmacro if-target [then]
    (if-eq (test.target null) :null (seq $%%)))

  (defmacro case [name] (test.if-target
    (builtins.errors.try
      (scope $%& (trace "Running test \"" $name "\": OK ✅"))
      #(trace "Running test \"" $name "\": FAILED ❌ (" %2 ": " %1 ")"))))

  (defmacro space [name] (if
    (bool.or (eq? test.target $name) (eq? test.target "."))
    (namespace $name (seq $%&))
  ))
)