do not run BlossomV tests on Windows (not supported)

Author: Krastanov

test/Project.toml

@@ -1,11 +1,11 @@
 [deps]
-BlossomV = "6c721016-9dae-5d90-abf6-67daaccb2332"
 Cbc = "9961bab8-2fa3-5c5a-9d89-47fab24efd76"
 Graphs = "86223c79-3864-5bf0-83f7-82e725a168b6"
 Hungarian = "e91730f6-4275-51fb-a7a0-7064cfbd3b39"
 JuMP = "4076af6c-e467-56ae-b986-b466b2749572"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 LEMONGraphs = "14b1564f-c77f-4800-9e89-efd961faef7c"
 MathOptInterface = "b8f27783-ece8-5eb3-8dc8-9495eed66fee"
+Pkg = "44cfe95a-1eb2-52ea-b672-e2afdf69b78f"
 SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"

test/runtests.jl

@@ -5,7 +5,11 @@ using Cbc
 using JuMP
 using LinearAlgebra: I
 
-import BlossomV # to test the extension
+if !Sys.iswindows()
+    using Pkg
+    Pkg.add("BlossomV")
+    import BlossomV # to test the extension
+end
 
 @testset "GraphsMatching" begin
 
@@ -261,10 +265,11 @@ import BlossomV # to test the extension
 
 
     @testset "minimum_weight_perfect_matching" begin
-        for algorithm in [
-            BlossomVAlgorithm(),
-            LEMONMWPMAlgorithm(),
-        ]
+        algos = Any[LEMONMWPMAlgorithm()]
+        if !Sys.iswindows()
+            push!(algos, BlossomVAlgorithm())
+        end
+        for algorithm in algos
 
         w = Dict(Edge(1, 2) => 500)
         g = Graph(2)