test ChebyshevTransform

Author: yuehhua

test/operator_kernel.jl

@@ -142,3 +142,21 @@ end
     @test SpectralConv(ch, modes) isa OperatorConv
     @test SpectralConv(ch, modes).transform isa FourierTransform
 end
+
+@testset "1D OperatorConv with ChebyshevTransform" begin
+    modes = (16,)
+    ch = 64 => 128
+
+    m = Chain(Dense(2, 64),
+              OperatorConv(ch, modes, ChebyshevTransform))
+    @test ndims(OperatorConv(ch, modes, ChebyshevTransform)) == 1
+    @test repr(OperatorConv(ch, modes, ChebyshevTransform)) ==
+          "OperatorConv(64 => 128, (16,), ChebyshevTransform, permuted=false)"
+
+    𝐱 = rand(Float32, 2, 1024, 5)
+    @test size(m(𝐱)) == (128, 1024, 5)
+
+    loss(x, y) = Flux.mse(m(x), y)
+    data = [(𝐱, rand(Float32, 128, 1024, 5))]
+    Flux.train!(loss, Flux.params(m), data, Flux.Adam())
+end