use modules for tests to keep the namespace clean

Author: ranocha

test/bicgstabl.jl

@@ -1,3 +1,5 @@
+module TestBiCGStabl
+
 using IterativeSolvers
 using Test
 using Random
@@ -40,3 +42,5 @@ n = 20
     end
 end
 end
+
+end # module

test/cg.jl

@@ -1,3 +1,5 @@
+module TestCG
+
 using IterativeSolvers
 using LinearMaps
 using Test
@@ -93,3 +95,5 @@ end
 end
 
 end
+
+end # module

test/chebyshev.jl

@@ -1,3 +1,5 @@
+module TestChebyshev
+
 using IterativeSolvers
 using Test
 using Random
@@ -58,3 +60,5 @@ Random.seed!(1234321)
     end
 end
 end
+
+end # module

test/common.jl

@@ -1,3 +1,5 @@
+module TestCommon
+
 using Documenter
 using LinearAlgebra
 using IterativeSolvers
@@ -29,3 +31,5 @@ end
 
 DocMeta.setdocmeta!(IterativeSolvers, :DocTestSetup, :(using IterativeSolvers); recursive=true)
 doctest(IterativeSolvers, manual=false)
+
+end # module

test/gmres.jl

@@ -1,3 +1,5 @@
+module TestGMRES
+
 using IterativeSolvers
 using Test
 using LinearMaps
@@ -70,3 +72,5 @@ end
     @test all(x .== b)
 end
 end
+
+end # module

test/hessenberg.jl

@@ -1,3 +1,6 @@
+module TestHessenberg
+
+using LinearAlgebra
 using IterativeSolvers
 using Test
 
@@ -40,3 +43,5 @@ using Test
         @test abs(last(solution_with_residual)) ≈ norm(H * solution - rhs)
     end
 end
+
+end # module

test/history.jl

@@ -1,3 +1,5 @@
+module TestHistory
+
 using IterativeSolvers
 using RecipesBase
 using Test
@@ -75,3 +77,5 @@ using Test
         end
     end
 end
+
+end # module

test/idrs.jl

@@ -1,7 +1,10 @@
+module TestIDRs
+
 using IterativeSolvers
 using Test
 using Random
 using LinearAlgebra
+using SparseArrays
 
 @testset "IDR(s)" begin
 
@@ -58,3 +61,5 @@ end
 end
 
 end
+
+end # module

test/lobpcg.jl

@@ -1,19 +1,20 @@
+module TestLOBPCG
+
 using IterativeSolvers
 using LinearMaps
 using LinearAlgebra
 using Test
 using Random
+using SparseArrays
+
 
-# Already defined in another file
-#=
 include("laplace_matrix.jl")
 
 struct JacobiPrec{TD}
     diagonal::TD
 end
 
-Base.ldiv!(y, P::JacobiPrec, x) = y .= x ./ P.diagonal
-=#
+LinearAlgebra.ldiv!(y, P::JacobiPrec, x) = y .= x ./ P.diagonal
 
 function max_err(R)
     r = zeros(real(eltype(R)), size(R, 2))
@@ -358,3 +359,5 @@ end
         end
     end
 end
+
+end # module

test/lsmr.jl

@@ -1,3 +1,5 @@
+module TestLSMR
+
 using IterativeSolvers
 using Test
 using LinearAlgebra
@@ -97,3 +99,5 @@ end
         @test norm((A'A + Matrix(Diagonal(v)) .^ 2)x - A'b) ≤ 1e-3
     end
 end
+
+end # module