Add test for sympy/sympy#4231

skirpichev · Feb 22, 2016 · fb411d5 · fb411d5
1 parent bc98dd2
commit fb411d5
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/sympy/integrals/tests/test_integrals.py b/sympy/integrals/tests/test_integrals.py
@@ -1114,3 +1114,9 @@ def test_issue_10567():
     vt = Matrix([a*t, b, c])
     assert integrate(vt, t) == Integral(vt, t).doit()
     assert integrate(vt, t) == Matrix([[a*t**2/2], [b*t], [c*t]])
+
+
+def test_issue_4231():
+    e = (1 + 2*x + sqrt(x + log(x))*(1 + 3*x) +
+         x**2)/(x*(x + sqrt(x + log(x)))*sqrt(x + log(x)))
+    assert integrate(e, x) == 2*log(x + sqrt(x + log(x))) + 2*sqrt(x + log(x))