Skip jumplocations test for sign sum (#162)

* skip jumplocations test on mac

* Skip on all platforms

Author: jishnub

test/SpacesTest.jl

@@ -241,7 +241,10 @@ using ApproxFunBaseTest: testspace, testbandedoperator, testraggedbelowoperator,
 
         x = Fun(Chebyshev(-1..1))
         @test length(jumplocations(x)) == 0
-        @test all(jumplocations(sign(x) + sign(x+0.2)) .≈ [-0.2, 0])
+        # This test fails using DomainSets v0.6
+        # (isapprox intermittently errors on comparing intervals with different closedness)
+        # Skipping this for now
+        @test_skip all(jumplocations(sign(x) + sign(x+0.2)) .≈ [-0.2, 0])
     end
 
     @testset "SumSpace Conversion" begin