Replace Base64.stringmime by sprint (#183)

Author: jishnub

Project.toml

@@ -16,7 +16,6 @@ ArrayLayoutsSparseArraysExt = "SparseArrays"
 
 [compat]
 Aqua = "0.8"
-Base64 = "1.6"
 FillArrays = "1.2.1"
 LinearAlgebra = "1.6"
 Random = "1.6"
@@ -27,11 +26,10 @@ julia = "1.6"
 
 [extras]
 Aqua = "4c88cf16-eb10-579e-8560-4a9242c79595"
-Base64 = "2a0f44e3-6c83-55bd-87e4-b1978d98bd5f"
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 StableRNGs = "860ef19b-820b-49d6-a774-d7a799459cd3"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [targets]
-test = ["Aqua", "Base64", "Random", "StableRNGs", "SparseArrays", "Test"]
+test = ["Aqua", "Random", "StableRNGs", "SparseArrays", "Test"]

test/runtests.jl

@@ -1,6 +1,5 @@
 using ArrayLayouts
 import Aqua
-using Base64
 using FillArrays
 using Random
 using SparseArrays

test/test_layoutarray.jl

@@ -1,4 +1,4 @@
-using ArrayLayouts, LinearAlgebra, FillArrays, Base64, Test
+using ArrayLayouts, LinearAlgebra, FillArrays, Test
 using ArrayLayouts: sub_materialize, MemoryLayout, ColumnNorm, RowMaximum, CRowMaximum
 
 struct MyMatrix <: LayoutMatrix{Float64}
@@ -37,7 +37,7 @@ MemoryLayout(::Type{MyVector}) = DenseColumnMajor()
         @test a[1:3] == a.A[1:3]
         @test a[:] == a
         @test (a')[1,:] == (a')[1,1:3] == a
-        @test stringmime("text/plain", a) == "3-element MyVector{Float64}:\n 1.0\n 2.0\n 3.0"
+        @test sprint(show, "text/plain", a) == "3-element MyVector{Float64}:\n 1.0\n 2.0\n 3.0"
         @test B*a ≈ B*a.A
         @test B'*a ≈ B'*a.A
         @test transpose(B)*a ≈ transpose(B)*a.A
@@ -209,7 +209,7 @@ MemoryLayout(::Type{MyVector}) = DenseColumnMajor()
         end
 
         C = MyMatrix([1 2; 3 4])
-        @test stringmime("text/plain", C) == "2×2 MyMatrix:\n 1.0  2.0\n 3.0  4.0"
+        @test sprint(show, "text/plain", C) == "2×2 MyMatrix:\n 1.0  2.0\n 3.0  4.0"
 
         @testset "layoutldiv" begin
             A = MyMatrix(randn(5,5))