Add test for ProductSpace domain (#181)

* Add test for ProductSpace domain

* bump AFB version

Author: jishnub

Project.toml

@@ -20,7 +20,7 @@ StaticArrays = "90137ffa-7385-5640-81b9-e52037218182"
 Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 
 [compat]
-ApproxFunBase = "0.7.64"
+ApproxFunBase = "0.7.65"
 ApproxFunBaseTest = "0.1"
 Aqua = "0.5"
 BandedMatrices = "0.16, 0.17"

test/MultivariateTest.jl

@@ -444,7 +444,7 @@ using Base: oneto
 
     @testset "ProductFun" begin
         u0   = ProductFun((x,y)->cos(x)+sin(y) +exp(-50x.^2-40(y-0.1)^2)+.5exp(-30(x+0.5)^2-40(y+0.2)^2))
-
+        @test typeof(domain(u0)) == ApproxFunBase.domaintype(space(u0))
 
         @test values(u0)-values(u0|>LowRankFun)|>norm < 1000eps()
         @test chebyshevtransform(values(u0))-coefficients(u0)|>norm < 100eps()