Fix window method and add more tests

src/concrete_generators.jl

@@ -160,6 +160,7 @@ for F in generate_window_functions_expr()
     @eval function $(F[1])(::Type{T}, size::NTuple{N, Int};
                            offset=CtrFT,
                            scale=ScaFTEdge, border_in=0.8, border_out=1.0) where{N, T} 
+        scale = get_scale(size, scale)
         offset = get_offset(size, offset)
         IndexFunArray(T, $(F[2]), size) 
     end

test/runtests.jl

@@ -3,6 +3,9 @@ using Random
 
 using IndexFunArrays
 
+include("test_center_scaling.jl")
+include("constructors.jl")
+include("concrete_generators.jl")
 
 
 @testset "Test defined array operation" begin
@@ -60,9 +63,4 @@ end
 end
 
 
-
-include("constructors.jl")
-
-include("concrete_generators.jl")
-
 return

test/test_center_scaling.jl

@@ -0,0 +1,25 @@
+@testset "Check center and scaling methods" begin
+
+    @testset "Check center" begin
+
+        @test IndexFunArrays.get_offset((5,), CtrCorner) == (1.0,)
+        @test IndexFunArrays.get_offset((4,), CtrCorner) == (1.0,)
+        @test IndexFunArrays.get_offset((5, 2), CtrFT) == (3.0, 2.0)
+        @test IndexFunArrays.get_offset((5, 1), CtrFT) == (3.0, 1.0)
+        @test IndexFunArrays.get_offset((5, 2), CtrFFT) == (1.0, 1.0)
+
+        @test IndexFunArrays.get_offset((5, 2), CtrMid) == (3.0, 1.5)
+        @test IndexFunArrays.get_offset((5, 3), CtrMid) == (3.0, 2.0)
+
+        @test IndexFunArrays.get_offset((5, 4), CtrEnd) == (5.0, 4.0)
+    end
+
+
+    @testset "Check scaling" begin
+        @test IndexFunArrays.get_scale((5, 4), ScaFT) === (0.25, 0.25)
+        @test IndexFunArrays.get_scale((5, 4), ScaUnit) == (1, 1)
+        @test IndexFunArrays.get_scale((6, 5), ScaNorm) == (0.2, 0.25)
+        @test IndexFunArrays.get_scale((6, 5), ScaNorm) == (0.2, 0.25)
+        @test IndexFunArrays.get_scale((5,3), (2,11)) == (2,11)
+    end
+end