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test_diffs_context.py
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/ rhodecode / tests / lib / test_diffs_context.py
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# -*- coding: utf-8 -*-
# Copyright (C) 2010-2019 RhodeCode GmbH
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License, version 3
# (only), as published by the Free Software Foundation.
#
# 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 Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# This program is dual-licensed. If you wish to learn more about the
# RhodeCode Enterprise Edition, including its added features, Support services,
# and proprietary license terms, please see https://rhodecode.com/licenses/
"""
Tests of :mod:`rhodecode.lib.diffs` around the context of a specific line.
"""
import textwrap
import pytest
from rhodecode.lib import diffs
from rhodecode.lib.vcs.backends.git.diff import GitDiff
def test_context_of_new_and_old_line_number_raises(diff_processor):
with pytest.raises(ValueError):
diff_processor.get_context_of_line(
path='file.txt', diff_line=diffs.DiffLineNumber(old=7, new=7))
def test_context_of_an_old_line_number(diff_processor):
context = diff_processor.get_context_of_line(
path='file.txt', diff_line=diffs.DiffLineNumber(old=7, new=None))
expected_context = [
('unmod', 'line04\n'),
('unmod', 'line05\n'),
('unmod', 'line06\n'),
('unmod', 'line07\n'),
('add', 'line07a Add after line07\n'),
('unmod', 'line08\n'),
('unmod', 'line09\n'),
]
assert context == expected_context
def test_context_of_a_new_line_number(diff_processor):
context = diff_processor.get_context_of_line(
path='file.txt', diff_line=diffs.DiffLineNumber(old=None, new=8))
expected_context = [
('unmod', 'line05\n'),
('unmod', 'line06\n'),
('unmod', 'line07\n'),
('add', 'line07a Add after line07\n'),
('unmod', 'line08\n'),
('unmod', 'line09\n'),
('unmod', 'line10\n'),
]
assert context == expected_context
def test_context_of_an_invisible_line_beginning_of_hunk(diff_processor):
# Note: The caller has to pass in a diff which is suitable to satisfy
# its requirements. This test just ensures that we see a sane behavior.
context = diff_processor.get_context_of_line(
path='file.txt', diff_line=diffs.DiffLineNumber(old=None, new=3))
expected_context = [
('unmod', 'line02\n'),
('unmod', 'line03\n'),
('unmod', 'line04\n'),
('unmod', 'line05\n'),
('unmod', 'line06\n'),
]
assert context == expected_context
def test_context_of_an_invisible_line_end_of_hunk(diff_processor):
# Note: The caller has to pass in a diff which is suitable to satisfy
# its requirements. This test just ensures that we see a sane behavior.
context = diff_processor.get_context_of_line(
path='file.txt', diff_line=diffs.DiffLineNumber(old=12, new=None))
expected_context = [
('unmod', 'line09\n'),
('unmod', 'line10\n'),
('unmod', 'line11\n'),
('unmod', 'line12\n'),
('unmod', 'line13\n'),
]
assert context == expected_context
@pytest.mark.parametrize('diff_fixture', ['change-in-beginning.diff'])
def test_context_of_an_incomplete_hunk_in_the_beginning(diff_processor):
context = diff_processor.get_context_of_line(
path='file.txt', diff_line=diffs.DiffLineNumber(old=None, new=2))
expected_context = [
('unmod', 'line01\n'),
('add', 'line01a Add line after line01\n'),
('unmod', 'line02\n'),
('unmod', 'line03\n'),
('unmod', 'line04\n'),
]
assert context == expected_context
@pytest.mark.parametrize('diff_fixture', ['change-in-end.diff'])
def test_context_of_an_incomplete_hunk_in_the_end(diff_processor):
context = diff_processor.get_context_of_line(
path='file.txt', diff_line=diffs.DiffLineNumber(old=None, new=80))
expected_context = [
('unmod', 'line36\n'),
('unmod', 'line37\n'),
('unmod', 'line38\n'),
('add', 'line38a Add line after line38\n'),
('unmod', 'line39\n'),
]
assert context == expected_context
@pytest.mark.parametrize('diff_fixture', [
'single-line.diff',
'single-line-two-files.diff',
])
def test_appends_newline_for_each_context_line(diff_processor):
context = diff_processor.get_context_of_line(
path='file_b', diff_line=diffs.DiffLineNumber(old=None, new=1))
assert context == [('add', 'test_content\n')]
def test_context_of_a_missing_line_raises(diff_processor):
missing_line = 20
with pytest.raises(diffs.LineNotInDiffException):
diff_processor.get_context_of_line(
path='file.txt',
diff_line=diffs.DiffLineNumber(old=None, new=missing_line))
def test_context_of_a_missing_file_raises(diff_processor):
with pytest.raises(diffs.FileNotInDiffException):
diff_processor.get_context_of_line(
path='not_existing_file.txt',
diff_line=diffs.DiffLineNumber(old=None, new=8))
def test_find_context_with_full_context(diff_processor):
context_of_line_7 = [
('unmod', 'line05\n'),
('unmod', 'line06\n'),
('unmod', 'line07\n'),
('add', 'line07a Add after line07\n'),
('unmod', 'line08\n'),
('unmod', 'line09\n'),
('unmod', 'line10\n'),
]
found_line = diff_processor.find_context(
'file.txt', context_of_line_7, offset=3)
assert found_line == [diffs.DiffLineNumber(old=None, new=8)]
@pytest.mark.parametrize('diff_fixture', ['change-duplicated.diff'])
def test_find_context_multiple_times(diff_processor):
context = [
('unmod', 'line04\n'),
('unmod', 'line05\n'),
('unmod', 'line06\n'),
('add', 'line06a add line\n'),
('unmod', 'line07\n'),
('unmod', 'line08\n'),
('unmod', 'line09\n'),
]
found_line = diff_processor.find_context('file.txt', context, offset=3)
assert found_line == [
diffs.DiffLineNumber(old=None, new=7),
diffs.DiffLineNumber(old=None, new=49),
]
@pytest.mark.parametrize('offset', [20, -20, -1, 7])
def test_find_context_offset_param_raises(diff_processor, offset):
context_of_line_7 = [
('unmod', 'line04\n'),
('unmod', 'line05\n'),
('unmod', 'line06\n'),
('unmod', 'line07\n'),
('add', 'line07a Add after line07\n'),
('unmod', 'line08\n'),
('unmod', 'line09\n'),
]
with pytest.raises(ValueError):
diff_processor.find_context(
'file.txt', context_of_line_7, offset=offset)
def test_find_context_beginning_of_chunk(diff_processor):
context_of_first_line = [
('unmod', 'line02\n'),
('unmod', 'line03\n'),
('unmod', 'line04\n'),
('unmod', 'line05\n'),
]
found_line = diff_processor.find_context(
'file.txt', context_of_first_line, offset=0)
assert found_line == [diffs.DiffLineNumber(old=2, new=2)]
@pytest.mark.parametrize('diff_fixture', ['change-in-beginning.diff'])
def test_find_context_beginning_of_file(diff_processor):
context_of_first_line = [
('add', 'line01a Add line after line01\n'),
('unmod', 'line02\n'),
('unmod', 'line03\n'),
('unmod', 'line04\n'),
('unmod', 'line05\n'),
('unmod', 'line06\n'),
('unmod', 'line07\n'),
]
found_line = diff_processor.find_context(
'file.txt', context_of_first_line, offset=3)
assert found_line == [diffs.DiffLineNumber(old=4, new=5)]
def test_find_context_end_of_chunk(diff_processor):
context_of_last_line = [
('unmod', 'line10\n'),
('unmod', 'line11\n'),
('unmod', 'line12\n'),
('unmod', 'line13\n'),
]
found_line = diff_processor.find_context(
'file.txt', context_of_last_line, offset=3)
assert found_line == [diffs.DiffLineNumber(old=13, new=14)]
@pytest.fixture()
def diff_processor(request, diff_fixture):
raw_diff = diffs_store[diff_fixture]
diff = GitDiff(raw_diff)
processor = diffs.DiffProcessor(diff)
processor.prepare()
return processor
@pytest.fixture()
def diff_fixture():
return 'default.diff'
diff_default = textwrap.dedent("""
diff --git a/file.txt b/file.txt
index 76e4f2e..6f8738f 100644
--- a/file.txt
+++ b/file.txt
@@ -2,12 +2,13 @@ line01
line02
line03
line04
line05
line06
line07
+line07a Add after line07
line08
line09
line10
line11
line12
line13
""")
diff_beginning = textwrap.dedent("""
diff --git a/file.txt b/file.txt
index 76e4f2e..47d39f4 100644
--- a/file.txt
+++ b/file.txt
@@ -1,7 +1,8 @@
line01
+line01a Add line after line01
line02
line03
line04
line05
line06
line07
""")
diff_end = textwrap.dedent("""
diff --git a/file.txt b/file.txt
index 76e4f2e..b1304db 100644
--- a/file.txt
+++ b/file.txt
@@ -74,7 +74,8 @@ line32
line33
line34
line35
line36
line37
line38
+line38a Add line after line38
line39
""")
diff_duplicated_change = textwrap.dedent("""
diff --git a/file.txt b/file.txt
index 76e4f2e..55c2781 100644
--- a/file.txt
+++ b/file.txt
@@ -1,12 +1,13 @@
line01
line02
line03
line04
line05
line06
+line06a add line
line07
line08
line09
line10
line11
line12
@@ -42,12 +43,13 @@ line39
line01
line02
line03
line04
line05
line06
+line06a add line
line07
line08
line09
line10
line11
line12
""")
diff_single_line = textwrap.dedent("""
diff --git a/file_b b/file_b
new file mode 100644
index 00000000..915e94ff
--- /dev/null
+++ b/file_b
@@ -0,0 +1 @@
+test_content
""")
diff_single_line_two_files = textwrap.dedent("""
diff --git a/file_b b/file_b
new file mode 100644
index 00000000..915e94ff
--- /dev/null
+++ b/file_b
@@ -0,0 +1 @@
+test_content
diff --git a/file_c b/file_c
new file mode 100644
index 00000000..915e94ff
--- /dev/null
+++ b/file_c
@@ -0,0 +1 @@
+test_content
""")
diffs_store = {
'default.diff': diff_default,
'change-in-beginning.diff': diff_beginning,
'change-in-end.diff': diff_end,
'change-duplicated.diff': diff_duplicated_change,
'single-line.diff': diff_single_line,
'single-line-two-files.diff': diff_single_line_two_files,
}