Fixed 2d real forward test

Author: dannys4

test/twodim/real_backward.jl

@@ -3,9 +3,9 @@ test_nums = [8, 11, 15, 16, 27, 100]
 @testset "backward" begin
     for N in test_nums
         x = ones(Float64, N, N)
-        y = bfft(x)
+        y = brfft(x, 2*N-1)
         y_ref = 0*y
-        y_ref[1] = length(x)
-        @test y_ref ≈ y
+        y_ref[1] = N*(2*(N-1))
+        @test y_ref ≈ y atol=1e-12
     end
 end

test/twodim/real_forward.jl

@@ -3,7 +3,7 @@ test_nums = [8, 11, 15, 16, 27, 100]
 @testset " forward" begin 
     for N in test_nums
         x = ones(Float64, N, N)
-        y = fft(x)
+        y = rfft(x)
         y_ref = 0*y
         y_ref[1] = length(x)
         @test y ≈ y_ref