#!/usr/bin/python

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"""Unit test for text_style.py."""

import unittest

import text as text_style

from text import TextChecker

class TextStyleTestCase(unittest.TestCase):

    """TestCase for text_style.py"""

    def assertNoError(self, lines):

        """Asserts that the specified lines has no errors."""

        self.had_error = False

        def error_for_test(line_number, category, confidence, message):

            """Records if an error occurs."""

            self.had_error = True

        text_style.process_file_data('', lines, error_for_test)

        self.assert_(not self.had_error, '%s should not have any errors.' % lines)

    def assertError(self, lines, expected_line_number):

        """Asserts that the specified lines has an error."""

        self.had_error = False

        def error_for_test(line_number, category, confidence, message):

            """Checks if the expected error occurs."""

            self.assertEquals(expected_line_number, line_number)

            self.assertEquals('whitespace/tab', category)

            self.had_error = True

        text_style.process_file_data('', lines, error_for_test)

        self.assert_(self.had_error, '%s should have an error [whitespace/tab].' % lines)

    def test_no_error(self):

        """Tests for no error cases."""

        self.assertNoError([''])

        self.assertNoError(['abc def', 'ggg'])

    def test_error(self):

        """Tests for error cases."""

        self.assertError(['2009-12-16\tKent Tamura\t<tkent@chromium.org>'], 1)

        self.assertError(['2009-12-16 Kent Tamura <tkent@chromium.org>',

                          '',

                          '\tReviewed by NOBODY.'], 3)

class TextCheckerTest(unittest.TestCase):

    """Tests TextChecker class."""

    def mock_handle_style_error(self):

        pass

    def test_init(self):

        """Test __init__ constructor."""

        checker = TextChecker("foo.txt", self.mock_handle_style_error)

        self.assertEquals(checker.file_path, "foo.txt")

        self.assertEquals(checker.handle_style_error, self.mock_handle_style_error)

if __name__ == '__main__':

    unittest.main()