Add regression test

Closes sympy/sympy#23845
diofant · Jul 30, 2022 · 202500a · 202500a
1 parent 7de5be1
commit 202500a
Show file tree

Hide file tree

Showing 2 changed files with 11 additions and 0 deletions.
diff --git a/diofant/tests/series/test_gruntz.py b/diofant/tests/series/test_gruntz.py
@@ -458,3 +458,13 @@ def test_issue_75():
 def test_sympyissue_8241():
     e = x/log(x)**(log(x)/(m*log(log(x))))
     assert isinstance(limit(e, x, oo), Limit)
+
+
+def test_sympyissue_23845():
+    e = ((-sqrt(5)*(-sqrt(5)/2 + Rational(3, 2))**x +
+          5*(-sqrt(5)/2 + Rational(3, 2))**x +
+          (sqrt(5)/2 + Rational(3, 2))**x*(sqrt(5) + 5)) /
+         (-3*sqrt(5)*(-sqrt(5)/2 + Rational(3, 2))**x +
+          5*(-sqrt(5)/2 + Rational(3, 2))**x +
+          (5 + 3*sqrt(5))*(sqrt(5)/2 + Rational(3, 2))**x))
+    assert limit(e, x, oo) == (sqrt(5) + 5)/(5 + 3*sqrt(5))
diff --git a/docs/release/notes-0.14.rst b/docs/release/notes-0.14.rst
@@ -94,3 +94,4 @@ These Sympy issues also were addressed:
 * :sympyissue:`22605`: Incorrect result from minpoly(cos(pi/9))
 * :sympyissue:`23677`: minimal_polynomial fails for very complicated algebraic number
 * :sympyissue:`23836`: Incorrect results for limits of Piecewise at discontinuity
+* :sympyissue:`23845`: Gruntz should have been free of _w, value error, recursion error