rpm: add gbp.rpm.changelog module

This new module contains basic containers and functionality for parsing
and updating rpm changelogs. It is coupled with the rpm packaging policy
class which now has definitions for rpm changelog formatting.

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>

1 files changed, 226 insertions, 0 deletions

diff --git a/tests/test_rpm_changelog.py b/tests/test_rpm_changelog.py
new file mode 100644
index 0000000..b31824a
--- /dev/null
+++ b/tests/test_rpm_changelog.py
@@ -0,0 +1,226 @@
+# vim: set fileencoding=utf-8 :
+#
+# (C) 2014-2015 Intel Corporation <markus.lehtonen@linux.intel.com>
+#    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 2 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, please see
+#    <http://www.gnu.org/licenses/>
+"""Test RPM changelog classes and parsing"""
+
+from datetime import datetime
+from nose.tools import assert_raises, eq_, ok_  # pylint: disable=E0611
+from tempfile import NamedTemporaryFile
+
+from gbp.rpm.changelog import _ChangelogHeader, _ChangelogEntry
+from gbp.rpm.changelog import _ChangelogSection, Changelog
+from gbp.rpm.changelog import ChangelogParser, ChangelogError
+from gbp.rpm.policy import RpmPkgPolicy
+
+
+class TestChangelogHeader(object):
+    """Test the _ChangelogHeader class"""
+
+    def test_str_format(self):
+        """Basic test for header"""
+        time = datetime(2014, 01, 29, 12, 13, 14)
+        header = _ChangelogHeader(RpmPkgPolicy, time, name="John Doe",
+                                        email="user@host.com", revision="1")
+        eq_(str(header), "* Wed Jan 29 2014 John Doe <user@host.com> 1\n")
+
+    def test_str_format_err(self):
+        """Test missing properties"""
+        time = datetime(2014, 01, 29, 12, 13, 14)
+        header = _ChangelogHeader(RpmPkgPolicy, time, name="John", revision="1")
+        with assert_raises(ChangelogError):
+            str(header)
+
+    def test_container(self):
+        """Test the container methods of the class"""
+        header = _ChangelogHeader(RpmPkgPolicy, datetime(2014, 1, 1), name="N",
+                                  revision="1")
+        # Test __getitem__()
+        eq_(header['name'], "N")
+        eq_(header['email'], None)
+        # Test __contains__()
+        ok_('name' in header)
+        ok_('foo' not in header)
+
+
+class TestChangelogEntry(object):
+    """Test the _ChangelogEntry class"""
+
+    def test_str_format(self):
+        """Basic test"""
+        entry = _ChangelogEntry(RpmPkgPolicy, author="John Doe",
+                                text="- foo\n  bar")
+        eq_(str(entry), "- foo\n  bar\n")
+
+
+class TestChangelogSection(object):
+    """Test the _ChangelogSection class"""
+
+    def setup(self):
+        """Initialize test"""
+        time = datetime(2014, 01, 29, 12, 13, 14)
+        self.default_sect = _ChangelogSection(RpmPkgPolicy, time, name="J. D.",
+                                              email="u@h", revision="1")
+        entry = _ChangelogEntry(RpmPkgPolicy, "J. D.", "- my change")
+        self.default_sect.entries = [entry]
+
+    def test_str_format(self):
+        """Basic test"""
+        section = self.default_sect
+        eq_(str(section), "* Wed Jan 29 2014 J. D. <u@h> 1\n- my change\n\n")
+
+    def test_append_entry(self):
+        """Test add_entry() method"""
+        section = self.default_sect
+        entry = _ChangelogEntry(RpmPkgPolicy, author="",
+                                text="- another\n  change")
+        new_entry = section.append_entry(entry)
+        eq_(str(section), "* Wed Jan 29 2014 J. D. <u@h> 1\n- my change\n"
+                          "- another\n  change\n\n")
+        eq_(new_entry, section.entries[-1])
+
+
+    def test_set_header(self):
+        """Test set_header() method"""
+        section = self.default_sect
+        time = datetime(2014, 01, 30)
+        section.set_header(time=time, name="Jane", email="u@h", revision="1.1")
+        eq_(str(section), "* Thu Jan 30 2014 Jane <u@h> 1.1\n- my change\n\n")
+
+class TestChangelogParser(object):
+    """Test the default changelog parser"""
+
+    cl_default_style = """\
+* Wed Jan 29 2014 Markus Lehtonen <markus.lehtonen@linux.intel.com> 0.3-1
+- Version bump
+- Drop foo.patch
+
+* Tue Jan 28 2014 Markus Lehtonen <markus.lehtonen@linux.intel.com> 0.2
+- Update to 0.2
+
+* Mon Jan 27 2014 Markus Lehtonen <markus.lehtonen@linux.intel.com> 0.1
+- Initial version
+"""
+    cl_with_authors = """\
+* Wed Jan 29 2014 Markus Lehtonen <markus.lehtonen@linux.intel.com> 0.3-1
+[Markus Lehtonen]
+- Version bump
+[John Doe]
+- Bug fix
+"""
+    # Invalid timestamp / name
+    cl_broken_header_1 = """\
+* Wed Jan 29 2014Markus Lehtonen <markus.lehtonen@linux.intel.com> 0.3-1
+- Version bump
+"""
+    # Whitespace before the asterisk in the header
+    cl_broken_header_2 = """\
+ * Wed Jan 29 2014 Markus Lehtonen <markus.lehtonen@linux.intel.com> 0.3-1
+- Version bump
+"""
+    # Invalid timestamp
+    cl_broken_header_3 = """\
+* Wed Jan 32 2014 Markus Lehtonen <markus.lehtonen@linux.intel.com> 0.3-1
+- Version bump
+"""
+    # Missing email
+    cl_broken_header_4 = """\
+* Wed Jan 29 2014 Markus Lehtonen 0.3-1
+- Version bump
+"""
+    # Garbage before section header
+    cl_broken_header_5 = """\
+---garbage---
+* Wed Jan 29 2014 Markus Lehtonen <markus.lehtonen@linux.intel.com> 0.3-1
+- Version bump
+"""
+
+    parser = ChangelogParser(RpmPkgPolicy)
+
+    def test_parse_changelog(self):
+        """Basic tests for successful parsing"""
+        # Raw parsing of changelog
+        changelog = self.parser.raw_parse_string(self.cl_default_style)
+        eq_(len(changelog.sections), 3)
+
+        # Check that re-creating the changelog doesn't mangle it
+        eq_(str(changelog), self.cl_default_style)
+
+        # Parse and check section
+        section = self.parser.parse_section(changelog.sections[0])
+
+        eq_(section.header['time'], datetime(2014, 1, 29))
+        eq_(section.header['name'], "Markus Lehtonen")
+        eq_(section.header['email'], "markus.lehtonen@linux.intel.com")
+        eq_(section.header['revision'], "0.3-1")
+
+        # Check that re-creating section doesn't mangle it
+        eq_(str(section), changelog.sections[0])
+
+    def test_parse_authors(self):
+        """Test parsing of authors from changelog entries"""
+        section = self.parser.parse_section(self.cl_with_authors)
+        eq_(section.entries[0].author, "Markus Lehtonen")
+        eq_(section.entries[1].author, "John Doe")
+
+    def test_parse_changelog_file(self):
+        """Basic tests for parsing a file"""
+        # Create file and parse it
+        tmpfile = NamedTemporaryFile()
+        tmpfile.write(self.cl_default_style)
+        tmpfile.file.flush()
+        changelog = self.parser.raw_parse_file(tmpfile.name)
+        # Check parsing results
+        eq_(len(changelog.sections), 3)
+        eq_(str(changelog), self.cl_default_style)
+        # Cleanup
+        tmpfile.close()
+
+    def test_parse_section_fail(self):
+        """Basic tests for failures of changelog section parsing"""
+        with assert_raises(ChangelogError):
+            self.parser.parse_section(self.cl_broken_header_1)
+
+        with assert_raises(ChangelogError):
+            self.parser.parse_section(self.cl_broken_header_2)
+
+        with assert_raises(ChangelogError):
+            self.parser.parse_section(self.cl_broken_header_3)
+
+        with assert_raises(ChangelogError):
+            self.parser.parse_section(self.cl_broken_header_4)
+
+    def test_parse_changelog_fail(self):
+        """Basic tests for changelog parsing failures"""
+        with assert_raises(ChangelogError):
+            self.parser.raw_parse_string(self.cl_broken_header_5)
+
+
+class TestChangelog(object):
+    """Unit tests for the Changelog class"""
+
+    def basic_test(self):
+        """Test basic initialization"""
+        changelog = Changelog(RpmPkgPolicy)
+        eq_(str(changelog), "")
+
+    def test_add_section(self):
+        """Test the add_section() method"""
+        changelog = Changelog(RpmPkgPolicy)
+        time = datetime(2014, 01, 30)
+        new_section = changelog.add_section(time=time, name="Jane Doe",
+                                            email="j@doe.com", revision="1.2")
+        eq_(str(changelog), "* Thu Jan 30 2014 Jane Doe <j@doe.com> 1.2\n\n")
+        eq_(new_section, changelog.sections[0])