Add test to detect allocations during broadcasting (#73)

* Add test to detect allocations during broadcasting

Mainly to prevent a regression.

* small changes

* forgot function renaming

Author: judober

test/broadcast.jl

@@ -190,4 +190,21 @@ Broadcast.broadcastable(x::ScalarTest) = Ref(x)
         d = HybridVector{4}([1, 2, 3, 4])
         @test_throws DimensionMismatch a .= d
     end
+
+    @testset "no allocations during broadcasting" begin
+        # HybridArrays issue #64
+        # Fixed in Julia 1.11
+        function test_broadcast_allocs()
+            H = HybridArray{Tuple{2,2,StaticArrays.Dynamic()}}(randn(2,2,2))
+            H2 = HybridArray{Tuple{2,2,StaticArrays.Dynamic()}}(Array{Float64}(undef, 2, 2, 4))
+            @allocated H2[:,:,1:2] .= H
+        end
+        
+        if VERSION >= v"1.11"
+            @test test_broadcast_allocs() == 0
+        else
+            @test_broken test_broadcast_allocs() == 0
+        end
+    end
+    
 end