Increase coverage

Author: dlfivefifty

src/ClassicalOrthogonalPolynomials.jl

@@ -46,7 +46,7 @@ export OrthogonalPolynomial, Normalized, orthonormalpolynomial, LanczosPolynomia
             ∞, Derivative, .., Inclusion, 
             chebyshevt, chebyshevu, legendre, jacobi,
             legendrep, jacobip, ultrasphericalc, laguerrel,hermiteh, normalizedjacobip,
-            jacobimatrix, jacobiweight, legendreweight, chebyshevtweight, chebyshevuweight
+            jacobimatrix, jacobiweight, legendreweight, chebyshevtweight, chebyshevuweight, Weighted
 
 if VERSION < v"1.6-"
     oneto(n) = Base.OneTo(n)

test/test_chebyshev.jl

@@ -130,9 +130,12 @@ import ContinuumArrays: MappedWeightedBasisLayout, Map
 
         @testset "Weighted" begin
             WT = Weighted(ChebyshevT())
+            @test WT == copy(WT)
+            @test WT \ WT == Eye(∞)
             @test wT[0.1,1:10] ≈ WT[0.1,1:10]
             @test WT \ (exp.(x) ./ sqrt.(1 .- x.^2)) ≈ wT \ (exp.(x) ./ sqrt.(1 .- x.^2))
             @test WT[:,1:20] \ (exp.(x) ./ sqrt.(1 .- x.^2)) ≈ (WT \ (exp.(x) ./ sqrt.(1 .- x.^2)))[1:20]
+            @test WT \ (x .* WT) == T \ (x .* T)
         end
 
         @testset "mapped" begin

test/test_normalized.jl

@@ -1,4 +1,4 @@
-using ClassicalOrthogonalPolynomials, FillArrays, BandedMatrices, ContinuumArrays, ArrayLayouts, LazyArrays, Base64, Test
+using ClassicalOrthogonalPolynomials, FillArrays, BandedMatrices, ContinuumArrays, ArrayLayouts, LazyArrays, Base64, LinearAlgebra, Test
 import ClassicalOrthogonalPolynomials: NormalizedBasisLayout, recurrencecoefficients, Normalized, Clenshaw, weighted
 import LazyArrays: CachedVector, PaddedLayout
 import ContinuumArrays: MappedWeightedBasisLayout
@@ -80,6 +80,13 @@ import ContinuumArrays: MappedWeightedBasisLayout
         @testset "show" begin
             @test stringmime("text/plain", Normalized(Legendre())) == "Normalized(Legendre{Float64})"
         end
+
+        @testset "qr" begin
+            P = Legendre()
+            Q,R = qr(P)
+            @test Q == Normalized(Legendre())
+            @test R[1:10,1:10] == (P\Q)[1:10,1:10]
+        end
     end
 
     @testset "Chebyshev" begin