text: #!/usr/bin/env python3
  
  import unittest
  from vppapigen import VPPAPI, Option, ParseError, Union
  
  # TODO
  # - test parsing of options, typedefs, enums, defines, CRC
  # - test JSON, C output
  
  
  class TestVersion(unittest.TestCase):
      @classmethod
      def setUpClass(cls):
          cls.parser = VPPAPI()
  
      def test_version(self):
          version_string = 'option version = "1.0.0";'
          r = self.parser.parse_string(version_string)
          self.assertTrue(isinstance(r[0], Option))
  
  class TestUnion(unittest.TestCase):
      @classmethod
      def setUpClass(cls):
          cls.parser = VPPAPI()
  
      def test_union(self):
          test_string = '''
          union foo_union {
          u32 a;
          u8 b;
          };
          '''
          r = self.parser.parse_string(test_string)
          self.assertTrue(isinstance(r[0], Union))
  
      def test_union_vla(self):
          test_string = '''
          union foo_union_vla {
          u32 a;
          u8 b[a];
          };
          autoreply define foo {
          vl_api_foo_union_vla_t v;
          };
          '''
          r = self.parser.parse_string(test_string)
          self.assertTrue(isinstance(r[0], Union))
          self.assertTrue(r[0].vla)
          s = self.parser.process(r)
  
  
          test_string2 = '''
          union foo_union_vla2 {
          u32 a;
          u8 b[a];
          u32 c;
          };
          autoreply define foo2 {
          vl_api_foo_union_vla2_t v;
          };
          '''
          self.assertRaises(ValueError, self.parser.parse_string, test_string2)
  
          test_string3 = '''
          union foo_union_vla3 {
          u32 a;
          u8 b[a];
          };
          autoreply define foo3 {
          vl_api_foo_union_vla3_t v;
          u32 x;
          };
          '''
          self.assertRaises(ValueError, self.parser.parse_string, test_string3)
  
  class TestTypedef(unittest.TestCase):
      @classmethod
      def setUpClass(cls):
          cls.parser = VPPAPI()
  
      @unittest.skip('Not yet implemented on 19.08')
      def test_duplicatetype(self):
          test_string = '''
          typedef foo1 { u8 dummy; };
          typedef foo1 { u8 dummy; };
          '''
          self.assertRaises(KeyError, self.parser.parse_string, test_string)
  
  
  class TestDefine(unittest.TestCase):
      @classmethod
      def setUpClass(cls):
          cls.parser = VPPAPI()
  
      def test_unknowntype(self):
          test_string = 'define foo { foobar foo;};'
          with self.assertRaises(ParseError) as ctx:
              self.parser.parse_string(test_string)
          self.assertIn('Undefined type: foobar', str(ctx.exception))
  
          test_string = 'define { u8 foo;};'
          with self.assertRaises(ParseError) as ctx:
              self.parser.parse_string(test_string)
  
      def test_flags(self):
          test_string = '''
            manual_print dont_trace manual_endian define foo { u8 foo; };
            define foo_reply {u32 context; i32 retval; };
          '''
          r = self.parser.parse_string(test_string)
          self.assertIsNotNone(r)
          s = self.parser.process(r)
          self.assertIsNotNone(s)
          for d in s['Define']:
              if d.name == 'foo':
                  self.assertTrue(d.dont_trace)
                  self.assertTrue(d.manual_endian)
                  self.assertTrue(d.manual_print)
                  self.assertFalse(d.autoreply)
  
          test_string = '''
            nonexisting_flag define foo { u8 foo; };
          '''
          with self.assertRaises(ParseError):
              self.parser.parse_string(test_string)
  
  
  class TestService(unittest.TestCase):
      @classmethod
      def setUpClass(cls):
          cls.parser = VPPAPI()
  
      def test_service(self):
          test_string = '''
           autoreply define show_version { u8 foo;};
           service { rpc show_version returns show_version_reply; };
          '''
          r = self.parser.parse_string(test_string)
          s = self.parser.process(r)
          self.assertEqual(s['Service'][0].caller, 'show_version')
          self.assertEqual(s['Service'][0].reply, 'show_version_reply')
  
  
  if __name__ == '__main__':
      unittest.main(verbosity=2)
  