def test_issue_4023():
sage.var("a x")
log = sage.log
i = sympy.integrate(log(x)/a, (x, a, a + 1))
i2 = sympy.simplify(i)
s = sage.SR(i2)
assert s == (a*log(1 + a) - a*log(a) + log(1 + a) - 1)/a
# This string contains Sage doctests, that execute all the functions above.
# When you add a new function, please add it here as well.
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