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from __future__ import absolute_import, division, unicode_literals
import unittest
from cola import core
from cola.diffparse import _parse_range_str, DiffParser
from test import helper
class ParseDiffTestCase(unittest.TestCase):
def test_diff(self):
fixture_path = helper.fixture('diff.txt')
parser = DiffParser('cola/diffparse.py', core.read(fixture_path))
hunks = parser.hunks
self.assertEqual(len(hunks), 3)
self.assertEqual(hunks[0].first_line_idx, 0)
self.assertEqual(len(hunks[0].lines), 23)
self.assertEqual(
hunks[0].lines[0],
'@@ -6,10 +6,21 @@ from cola import gitcmds')
self.assertEqual(
hunks[0].lines[1],
' from cola import gitcfg')
self.assertEqual(hunks[0].lines[2], ' ')
self.assertEqual(hunks[0].lines[3], ' ')
self.assertEqual(hunks[0].lines[4], '+class DiffSource(object):')
self.assertEqual(
hunks[0].lines[-1],
" self._header_start_re = re.compile('^@@ -(\d+)"
" \+(\d+),(\d+) @@.*')")
self.assertEqual(hunks[1].first_line_idx, 23)
self.assertEqual(len(hunks[1].lines), 18)
self.assertEqual(
hunks[1].lines[0],
'@@ -29,13 +40,11 @@ class DiffParser(object):')
self.assertEqual(
hunks[1].lines[1],
' self.diff_sel = []')
self.assertEqual(
hunks[1].lines[2],
' self.selected = []')
self.assertEqual(
hunks[1].lines[3],
' self.filename = filename')
self.assertEqual(
hunks[1].lines[4],
'+ self.diff_source = diff_source or DiffSource()')
self.assertEqual(
hunks[1].lines[-1],
' self.header = header')
self.assertEqual(hunks[2].first_line_idx, 41)
self.assertEqual(len(hunks[2].lines), 16)
self.assertEqual(
hunks[2].lines[0],
'@@ -43,11 +52,10 @@ class DiffParser(object):')
self.assertEqual(
hunks[2].lines[-1],
' """Writes a new diff corresponding to the user\'s'
' selection."""')
def test_diff_at_start(self):
fixture_path = helper.fixture('diff-start.txt')
parser = DiffParser('foo bar/a', core.read(fixture_path))
hunks = parser.hunks
self.assertEqual(hunks[0].lines[0], '@@ -1 +1,4 @@')
self.assertEqual(hunks[-1].lines[-1], '+c')
self.assertEqual(hunks[0].old_start, 1)
self.assertEqual(hunks[0].old_count, 1)
self.assertEqual(hunks[0].new_start, 1)
self.assertEqual(hunks[0].new_count, 4)
self.assertEqual(parser.generate_patch(1, 3),
'--- a/foo bar/a\n'
'+++ b/foo bar/a\n'
'@@ -1 +1,3 @@\n'
' bar\n'
'+a\n'
'+b\n')
self.assertEqual(parser.generate_patch(0, 4),
'--- a/foo bar/a\n'
'+++ b/foo bar/a\n'
'@@ -1 +1,4 @@\n'
' bar\n'
'+a\n'
'+b\n'
'+c\n')
def test_diff_at_end(self):
fixture_path = helper.fixture('diff-end.txt')
parser = DiffParser('rijndael.js', core.read(fixture_path))
hunks = parser.hunks
self.assertEqual(hunks[0].lines[0], '@@ -1,39 +1 @@')
self.assertEqual(
hunks[-1].lines[-1],
"+module.exports = require('./build/Release/rijndael');")
self.assertEqual(hunks[0].old_start, 1)
self.assertEqual(hunks[0].old_count, 39)
self.assertEqual(hunks[0].new_start, 1)
self.assertEqual(hunks[0].new_count, 1)
def test_diff_that_empties_file(self):
fixture_path = helper.fixture('diff-empty.txt')
parser = DiffParser('filename', core.read(fixture_path))
hunks = parser.hunks
self.assertEqual(hunks[0].lines[0], '@@ -1,2 +0,0 @@')
self.assertEqual(hunks[-1].lines[-1], '-second')
self.assertEqual(hunks[0].old_start, 1)
self.assertEqual(hunks[0].old_count, 2)
self.assertEqual(hunks[0].new_start, 0)
self.assertEqual(hunks[0].new_count, 0)
self.assertEqual(parser.generate_patch(1, 1),
'--- a/filename\n'
'+++ b/filename\n'
'@@ -1,2 +1 @@\n'
'-first\n'
' second\n')
self.assertEqual(parser.generate_patch(0, 2),
'--- a/filename\n'
'+++ b/filename\n'
'@@ -1,2 +0,0 @@\n'
'-first\n'
'-second\n')
class ParseRangeStrTestCase(unittest.TestCase):
def test_parse_range_str(self):
start, count = _parse_range_str('1,2')
self.assertEqual(start, 1)
self.assertEqual(count, 2)
def test_parse_range_str_single_line(self):
start, count = _parse_range_str('2')
self.assertEqual(start, 2)
self.assertEqual(count, 1)
def test_parse_range_str_empty(self):
start, count = _parse_range_str('0,0')
self.assertEqual(start, 0)
self.assertEqual(count, 0)
if __name__ == '__main__':
unittest.main()
|
