remove depedency on DelimitedFiles

Author: SobhanMP

Project.toml

@@ -2,7 +2,6 @@ name = "SparseArrays"
 uuid = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 
 [deps]
-DelimitedFiles = "8bb1440f-4735-579b-a4ab-409b98df4dab"
 Libdl = "8f399da3-3557-5675-b5ff-fb832c97cbdb"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
@@ -16,4 +15,4 @@ Printf = "de0858da-6303-5e67-8744-51eddeeeb8d7"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [targets]
-test = ["Dates", "Test", "Printf", "InteractiveUtils"]
+test = ["Dates", "InteractiveUtils", "Printf", "Test"]

test/cholmod.jl

@@ -4,7 +4,6 @@ module CHOLMODTests
 
 using Test
 using SparseArrays.CHOLMOD
-using DelimitedFiles
 using Random
 using Serialization
 using LinearAlgebra:
@@ -216,20 +215,29 @@ end
 end
 
 @testset "test Sparse constructor and read_sparse" begin
+    # avoid dependenting on delimited files
+    function writedlm(fn, title="", xs...)
+        open(fn, "w") do file
+            println(file, title)
+            for i in xs
+                println(file, i)
+            end
+        end
+    end
     mktempdir() do temp_dir
         testfile = joinpath(temp_dir, "tmp.mtx")
 
-        writedlm(testfile, ["%%MatrixMarket matrix coordinate real symmetric","3 3 4","1 1 1","2 2 1","3 2 0.5","3 3 1"])
+        writedlm(testfile, "%%MatrixMarket matrix coordinate real symmetric","3 3 4","1 1 1","2 2 1","3 2 0.5","3 3 1")
         @test sparse(CHOLMOD.Sparse(testfile)) == [1 0 0;0 1 0.5;0 0.5 1]
         rm(testfile)
 
-        writedlm(testfile, ["%%MatrixMarket matrix coordinate complex Hermitian",
-                        "3 3 4","1 1 1.0 0.0","2 2 1.0 0.0","3 2 0.5 0.5","3 3 1.0 0.0"])
+        writedlm(testfile, "%%MatrixMarket matrix coordinate complex Hermitian",
+                        "3 3 4","1 1 1.0 0.0","2 2 1.0 0.0","3 2 0.5 0.5","3 3 1.0 0.0")
         @test sparse(CHOLMOD.Sparse(testfile)) == [1 0 0;0 1 0.5-0.5im;0 0.5+0.5im 1]
         rm(testfile)
 
         # this also tests that the error message is correctly retrieved from the library
-        writedlm(testfile, ["%%MatrixMarket matrix coordinate real symmetric","%3 3 4","1 1 1","2 2 1","3 2 0.5","3 3 1"])
+        writedlm(testfile, "%%MatrixMarket matrix coordinate real symmetric","%3 3 4","1 1 1","2 2 1","3 2 0.5","3 3 1")
         @test_throws CHOLMOD.CHOLMODException("indices out of range") sparse(CHOLMOD.Sparse(testfile))
         rm(testfile)
     end