code: def test_polar_rlim_zero():
      ax = plt.figure().add_subplot(projection="polar")
      ax.plot(np.arange(10), np.arange(10) + 0.01)
      assert ax.get_ylim()[0] == 0
  
imports: import numpy
  from numpy.testing import assert_allclose
  import pytest
  import matplotlib
  from matplotlib import pyplot
  from matplotlib.testing.decorators import image_comparison, check_figures_equal
label_desc: Use image node_id 18 for calling a global function with example usage: test_polar_rlim_zero() without return types