Add a test

ranjanan · ranjanan · commit b908b6e1a235 · 2021-11-02T18:33:55.000-04:00
diff --git a/test/runtests.jl b/test/runtests.jl
@@ -322,3 +322,9 @@ for f in (smoothed_aggregation, ruge_stuben)
 end
 
 end
+
+# Issue #56
+X = poisson(27_000)+24.0*I
+ml = ruge_stuben(X)
+b = rand(27_000)
+@test solve(ml, b, reltol = 1e-10) ≈ X \ b rtol = 1e-10
