Add tests for *cat involving sparse is sparse, and that dense *cat is…

… still dense.
JuliaLang · Feb 29, 2016 · 31f0b7d · 31f0b7d
1 parent 86f89ee
commit 31f0b7d
Showing 1 changed file with 14 additions and 0 deletions.
diff --git a/test/sparsedir/sparse.jl b/test/sparsedir/sparse.jl
@@ -1282,3 +1282,17 @@ let
     @test issparse(UpperTriangular(full(m))) == false
     @test issparse(LinAlg.UnitUpperTriangular(full(m))) == false
 end
+
+# dense sparse concatenation -> sparse return type
+@test issparse([sprand(10,10,.1) rand(10,10)])
+@test issparse([sprand(10,10,.1); rand(10,10)])
+@test issparse([sprand(10,10,.1) rand(10,10); rand(10,10) rand(10,10)])
+#---
+# Matrix vector cat not supported for sparse #13130
+#@test issparse([sprand(10,10,.1) rand(10)])
+#@test issparse([sprand(10,10,.1) sprand(10,.1)])
+# ---
+@test !issparse([rand(10,10)  rand(10,10)])
+@test !issparse([rand(10,10); rand(10,10)])
+@test !issparse([rand(10,10)  rand(10,10); rand(10,10) rand(10,10)])
+