text: # -*- coding: utf-8 -*-
  
  from mock import patch
  from sphinx_testing import with_app
  
  import sys
  import unittest
  
  
  class TestSphinxcontribActdiagErrors(unittest.TestCase):
      @with_app(srcdir='tests/docs/basic', write_docstring=True)
      def test_parse_error(self, app, status, warning):
          """
          .. actdiag::
  
             { A -> B;
          """
          app.builder.build_all()
          self.assertIn('got unexpected token:', warning.getvalue())
  
      @with_app(srcdir='tests/docs/basic', confoverrides=dict(actdiag_html_image_format='JPG'))
      def test_unknown_format_error(self, app, status, warning):
          app.builder.build_all()
          self.assertIn('unknown format: JPG', warning.getvalue())
  
      @with_app(srcdir='tests/docs/basic', confoverrides=dict(actdiag_html_image_format='PDF'))
      def test_reportlab_not_found_error(self, app, status, warning):
          try:
              # unload reportlab and make loading it impossible
              sys.modules.pop('reportlab', None)
              path = sys.path
              sys.path = []
  
              app.builder.build_all()
              self.assertIn('Could not output PDF format. Install reportlab.',
                            warning.getvalue())
          finally:
              sys.path = path
  
      @with_app(srcdir='tests/docs/basic')
      @patch("actdiag.utils.rst.nodes.actdiag.processor.drawer.DiagramDraw")
      def test_rendering_error(self, app, status, warning, DiagramDraw):
          DiagramDraw.side_effect = RuntimeError("UNKNOWN ERROR!")
          app.builder.build_all()
          self.assertIn('UNKNOWN ERROR!', warning.getvalue())
  
      @with_app(srcdir='tests/docs/basic')
      @patch("sphinxcontrib.actdiag.actdiag.drawer.DiagramDraw.draw")
      def test_font_settings_error(self, app, status, warning, draw):
          draw.side_effect = UnicodeEncodeError("", "", 0, 0, "")
          app.builder.build_all()
          self.assertIn('UnicodeEncodeError caught (check your font settings)',
                        warning.getvalue())
  