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# Copyright 2013 Lars Wirzenius
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# =*= License: GPL-3+ =*=
import unittest
import yarnlib
class BlockParserTests(unittest.TestCase):
def setUp(self):
self.parser = yarnlib.BlockParser()
def test_is_initially_empty(self):
self.assertEqual(self.parser.scenarios, [])
self.assertEqual(self.parser.implementations, [])
def test_skips_examples(self):
self.parser.parse_blocks(['EXAMPLE foo', 'bar'])
self.assertEqual(len(self.parser.scenarios), 0)
def test_parses_simple_elements(self):
self.parser.parse_blocks(
['SCENARIO foo', 'ASSUMING something', 'GIVEN bar',
'WHEN foobar\nTHEN yoyo\nFINALLY yay\nAND yeehaa'])
self.assertEqual(len(self.parser.scenarios), 1)
self.assertEqual(len(self.parser.implementations), 0)
scenario = self.parser.scenarios[0]
self.assertEqual(scenario.name, 'foo')
self.assertEqual(len(scenario.steps), 6)
self.assertEqual(scenario.steps[0].what, 'ASSUMING')
self.assertEqual(scenario.steps[0].text, 'something')
self.assertEqual(scenario.steps[1].what, 'GIVEN')
self.assertEqual(scenario.steps[1].text, 'bar')
self.assertEqual(scenario.steps[2].what, 'WHEN')
self.assertEqual(scenario.steps[2].text, 'foobar')
self.assertEqual(scenario.steps[3].what, 'THEN')
self.assertEqual(scenario.steps[3].text, 'yoyo')
self.assertEqual(scenario.steps[4].what, 'FINALLY')
self.assertEqual(scenario.steps[4].text, 'yay')
self.assertEqual(scenario.steps[5].what, 'FINALLY')
self.assertEqual(scenario.steps[5].text, 'yeehaa')
def test_handles_continuation_line(self):
self.parser.parse_blocks(['SCENARIO foo', 'GIVEN foo', '... and bar'])
scenario = self.parser.scenarios[0]
self.assertEqual(len(self.parser.scenarios), 1)
self.assertEqual(scenario.name, 'foo')
self.assertEqual(scenario.steps[0].what, 'GIVEN')
self.assertEqual(scenario.steps[0].text, 'foo and bar')
def test_normalises_whitespace(self):
self.parser.parse_blocks(['SCENARIO foo bar '])
self.assertEqual(self.parser.scenarios[0].name, 'foo bar')
def test_handles_empty_line(self):
self.parser.parse_blocks(['SCENARIO foo\n\nGIVEN bar\nTHEN foobar'])
self.assertEqual(len(self.parser.scenarios), 1)
def test_raises_error_for_unknown_step(self):
self.assertRaises(
yarnlib.BlockError,
self.parser.parse_blocks,
['SCENARIO foo\nblah'])
def test_raises_error_for_step_outside_scenario(self):
self.assertRaises(
yarnlib.BlockError,
self.parser.parse_blocks,
['GIVEN foo'])
def test_raises_error_for_AND_before_scenario(self):
self.assertRaises(
yarnlib.BlockError,
self.parser.parse_blocks,
['AND bar'])
def test_raises_error_for_AND_before_step(self):
self.assertRaises(
yarnlib.BlockError,
self.parser.parse_blocks,
['SCENARIO foo\nAND bar'])
def test_parses_implements_in_a_block_by_itself(self):
self.parser.parse_blocks(['IMPLEMENTS GIVEN foo\ntrue'])
impls = self.parser.implementations
self.assertEqual(len(impls), 1)
self.assertEqual(impls[0].what, 'GIVEN')
self.assertEqual(impls[0].regexp, 'foo')
self.assertEqual(impls[0].shell, 'true')
def test_parses_implements_with_empty_shell_text(self):
self.parser.parse_blocks(['IMPLEMENTS GIVEN foo'])
impls = self.parser.implementations
self.assertEqual(len(impls), 1)
self.assertEqual(impls[0].what, 'GIVEN')
self.assertEqual(impls[0].regexp, 'foo')
self.assertEqual(impls[0].shell, '')
def test_parses_two_implements_in_a_code_block(self):
self.parser.parse_blocks(
['IMPLEMENTS GIVEN foo\ntrue\nIMPLEMENTS WHEN bar\ncat /dev/null'])
impls = self.parser.implementations
self.assertEqual(len(impls), 2)
self.assertEqual(impls[0].what, 'GIVEN')
self.assertEqual(impls[0].regexp, 'foo')
self.assertEqual(impls[0].shell, 'true')
self.assertEqual(impls[1].what, 'WHEN')
self.assertEqual(impls[1].regexp, 'bar')
self.assertEqual(impls[1].shell, 'cat /dev/null')
def test_raises_error_for_implements_with_no_args(self):
self.assertRaises(
yarnlib.BlockError,
self.parser.parse_blocks,
['IMPLEMENTS'])
def test_raises_error_for_implements_with_one_args(self):
self.assertRaises(
yarnlib.BlockError,
self.parser.parse_blocks,
['IMPLEMENTS GIVEN'])
def test_raises_error_for_implements_with_first_args_not_a_keyword(self):
self.assertRaises(
yarnlib.BlockError,
self.parser.parse_blocks,
['IMPLEMENTS foo'])
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