code: def test_singularityintegrate():
      assert singularityintegrate(x, x) is None
      assert (
          singularityintegrate(x + SingularityFunction(x, 9, 1), x)
          is None
      )
  
      assert (
          4 * singularityintegrate(SingularityFunction(x, a, 3), x)
          == 4 * SingularityFunction(x, a, 4) / 4
      )
      assert singularityintegrate(
          5 * SingularityFunction(x, 5, -2), x
      ) == 5 * SingularityFunction(x, 5, -1)
      assert singularityintegrate(
          6 * SingularityFunction(x, 5, -1), x
      ) == 6 * SingularityFunction(x, 5, 0)
      assert (
          singularityintegrate(x * SingularityFunction(x, 0, -1), x)
          == 0
      )
      assert (
          singularityintegrate(
              (x - 5) * SingularityFunction(x, 5, -1), x
          )
          == 0
      )
      assert singularityintegrate(
          SingularityFunction(x, 0, -1) * f(x), x
      ) == f(0) * SingularityFunction(x, 0, 0)
      assert singularityintegrate(
          SingularityFunction(x, 1, -1) * f(x), x
      ) == f(1) * SingularityFunction(x, 1, 0)
      assert singularityintegrate(
          y * SingularityFunction(x, 0, -1) ** 2, x
      ) == y * SingularityFunction(0, 0, -1) * SingularityFunction(
          x, 0, 0
      )
  
imports: from sympy.integrals.singularityfunctions import singularityintegrate
  from sympy.core.function import Function
  from sympy.core.symbol import symbols
  from sympy.functions.special.singularity_functions import SingularityFunction
label_desc: Use image node_id 1 for calling a global function with example usage: test_singularityintegrate() without return types