Add regression test

Closes sympy/sympy#22248
skirpichev · Oct 11, 2021 · d1e5e61 · d1e5e61
1 parent 4b36d1a
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diff --git a/diofant/tests/solvers/test_solvers.py b/diofant/tests/solvers/test_solvers.py
@@ -1756,3 +1756,15 @@ def test_sympyissue_22058():
     assert solve(-sqrt(t)*x**2 + 2*x + sqrt(t),
                  x) == [{x: -sqrt(1 + 1/t) + 1/sqrt(t)},
                         {x: sqrt(1 + 1/t) + 1/sqrt(t)}]
+
+
+def test_sympyissue_22248():
+    g = 9.81
+    y0 = 100
+    v0 = 55
+    m = 80
+    c = 15
+    y = y0 + (m/c)*(v0 + ((m*g)/c))*(1 - exp(- (c/m)*x)) - ((m*g)/c)*x
+
+    assert solve(y) == [{x: Float('-1.4164130909148258', dps=15)},
+                        {x: Float('11.61083847106101', dps=15)}]
diff --git a/docs/release/notes-0.13.rst b/docs/release/notes-0.13.rst
@@ -137,3 +137,4 @@ These Sympy issues also were addressed:
 * :sympyissue:`22093`: sympy.polys.polyerrors.HeuristicGCDFailed: no luck
 * :sympyissue:`22155`: Problem with solving simple separable ODE
 * :sympyissue:`22220`: Bug in the evaluation of a log limit
+* :sympyissue:`22248`: solve running forever