Fix test

Author: jonniedie

test/runtests.jl

@@ -43,9 +43,9 @@ _a, _b, _c = Val.((:a, :b, :c))
     @test @ballocated(@view $ca[:c]) == 0
     @test @ballocated(@view $cmat[:c, :c]) == 0
 
-    f(out, x) = (out .= x .+ x)
+    f = (out, x) -> (out .= x .+ x)
     out = deepcopy(ca)
-    @test @ballocated(f($out, $ca))
+    @test @ballocated($f($out, $ca)) == 0
 end
 
 @testset "Utilities" begin