add tests from #179

Author: MikaelSlevinsky

test/libfasttransformstests.jl

@@ -28,20 +28,37 @@ FastTransforms.ft_set_num_threads(ceil(Int, Base.Sys.CPU_THREADS/2))
         y = p1*x
         z = p2*y
         @test z ≈ x
+        y = p1*view(x, :)
+        z = p2*view(y, :)
+        @test z ≈ x
         y = p1*x
         z = p1'y
         y = transpose(p1)*z
         z = transpose(p1)\y
         y = p1'\z
         z = p1\y
         @test z ≈ x
+        y = p1*view(x, :)
+        z = p1'view(y, :)
+        y = transpose(p1)*view(z, :)
+        z = transpose(p1)\view(y, :)
+        y = p1'\view(z, :)
+        z = p1\view(y, :)
+        @test z ≈ x
         y = p2*x
         z = p2'y
         y = transpose(p2)*z
         z = transpose(p2)\y
         y = p2'\z
         z = p2\y
         @test z ≈ x
+        y = p2*view(x, :)
+        z = p2'view(y, :)
+        y = transpose(p2)*view(z, :)
+        z = transpose(p2)\view(y, :)
+        y = p2'\view(z, :)
+        z = p2\view(y, :)
+        @test z ≈ x
         P = p1*I
         Q = p2*P
         @test Q ≈ I