content: import numpy as np
  import pandas as pd
  from unittest import TestCase
  from framework import draw
  
  X = np.array([1, 2, 3, 4, 5])
  
  class TestSimplePlots(TestCase):
    def test_kinds(self):
      self.assertIsNotNone(draw.draw_kinds)
  
    def test_line(self):
      draw.draw(clear=True, kind='line', x=X, y=X)
      draw.draw(clear=True, kind='line', y=X)
    
    def test_scatter(self):
      draw.draw(clear=True, kind='scatter', x=X, y=X)
      draw.draw(clear=True, kind='scatter', y=X)
  
    def test_stem(self):
      draw.draw(clear=True, kind='stem', x=X, y=X)
      draw.draw(clear=True, kind='stem', y=X)
  
    def test_errorbar(self):
      draw.draw(clear=True, kind='errorbar', x=X, y=X, xerr=X, yerr=X)
      draw.draw(clear=True, kind='errorbar', y=X, yerr=X)
  
    def test_boxplot(self):
      draw.draw(clear=True, kind='boxplot', x=X)
    
    def test_barplot(self):
      draw.draw(clear=True, kind='barplot', x=X, y=X, width=1)
      draw.draw(clear=True, kind='barplot', x=X, y=X)
      draw.draw(clear=True, kind='barplot', y=X)
  
    def test_contour(self):
      draw.draw(clear=True, kind='contour', z=[[1, 2, 3], [4, 5, 6], [7, 8, 9]])
    
    def test_hist(self):
      draw.draw(clear=True, kind='hist', x=X, bins=2)
      draw.draw(clear=True, kind='hist', x=X)
  