351 lines
14 KiB
Python
351 lines
14 KiB
Python
# -*- coding: utf-8 -*-
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import mock
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import errno
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import os
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import stat
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from pungi import linker
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from tests import helpers
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class TestLinkerBase(helpers.PungiTestCase):
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def setUp(self):
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super(TestLinkerBase, self).setUp()
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self.logger = mock.Mock()
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self.linker = linker.Linker(logger=self.logger)
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self.path_src = self.touch("file", "asdf")
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def touch(self, path, contents=None):
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path = os.path.join(self.topdir, path)
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helpers.touch(path, contents)
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return path
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def mkdir(self, path):
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path = os.path.join(self.topdir, path.lstrip("/"))
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try:
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os.makedirs(path)
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except OSError as ex:
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if ex.errno != errno.EEXIST:
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raise
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return path
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def same_inode(self, path1, path2):
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st1 = os.stat(path1)
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st2 = os.stat(path2)
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return (st1.st_dev, st1.st_ino) == (st2.st_dev, st2.st_ino)
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def same_content(self, path1, path2):
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if self.same_inode(path1, path2):
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return True
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data1 = open(path1, "r").read()
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data2 = open(path2, "r").read()
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return data1 == data2
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def same_stat(self, path1, path2):
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st1 = os.stat(path1)
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st2 = os.stat(path2)
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if not stat.S_ISDIR(st1.st_mode) and int(st1.st_mtime) != int(st2.st_mtime):
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return False
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if st1.st_size != st2.st_size:
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return False
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if st1.st_mode != st2.st_mode:
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return False
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return True
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def assertSameStat(self, a, b):
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self.assertTrue(self.same_stat(a, b))
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def assertSameFile(self, a, b):
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self.assertTrue(os.path.samefile(a, b))
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def assertDifferentFile(self, a, b):
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self.assertFalse(os.path.samefile(a, b))
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class TestLinkerSymlink(TestLinkerBase):
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def test_symlink(self):
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path_dst = os.path.join(self.topdir, "symlink")
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# symlink 'symlink' -> 'file'
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self.linker.symlink(self.path_src, path_dst)
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self.assertTrue(os.path.islink(path_dst))
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self.assertEqual(os.readlink(path_dst), "file")
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self.assertSameFile(self.path_src, path_dst)
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# linking existing file must pass
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self.linker.symlink(self.path_src, path_dst)
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# linking existing file with different target must fail
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self.assertRaises(
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OSError, self.linker.symlink, self.path_src, path_dst, relative=False
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)
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def test_symlink_different_type(self):
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# try to symlink 'symlink' -> 'another-file' ('symlink' already exists
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# and points to 'file')
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path_dst = os.path.join(self.topdir, "symlink")
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os.symlink(self.path_src, path_dst)
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path_src = self.touch("another-file")
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self.assertRaises(OSError, self.linker.symlink, path_src, path_dst)
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def test_relative_symlink(self):
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# symlink bar -> ../a
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dir_dst = os.path.join(self.topdir, "foo")
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os.makedirs(dir_dst)
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path_dst = os.path.join(dir_dst, "bar")
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self.linker.symlink(self.path_src, path_dst)
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self.assertTrue(os.path.islink(path_dst))
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self.assertEqual(os.readlink(path_dst), "../file")
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self.assertSameFile(self.path_src, path_dst)
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def test_symlink_to_symlink(self):
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path_dst = os.path.join(self.topdir, "symlink")
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path_dst2 = os.path.join(self.topdir, "symlink-to-symlink")
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# symlink 'symlink' -> 'file'
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self.linker.symlink(self.path_src, path_dst, relative=True)
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self.linker.symlink(path_dst, path_dst2)
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class TestLinkerHardlink(TestLinkerBase):
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def test_hardlink(self):
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path_dst = os.path.join(self.topdir, "hardlink")
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# hardlink 'file' to 'hardlink'
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self.linker.hardlink(self.path_src, path_dst)
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self.assertTrue(os.path.isfile(path_dst))
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self.assertSameFile(self.path_src, path_dst)
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# hardlink 'file' to 'foo/hardlink'
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dir_dst = os.path.join(self.topdir, "foo")
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os.makedirs(dir_dst)
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path_dst = os.path.join(dir_dst, "hardlink")
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self.linker.hardlink(self.path_src, path_dst)
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self.assertTrue(os.path.isfile(path_dst))
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self.assertSameFile(self.path_src, path_dst)
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def test_hardlink_different_type(self):
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# try to hardlink a file to existing dst with incompatible type
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path_dst = os.path.join(self.topdir, "symlink")
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os.symlink(self.path_src, path_dst)
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self.assertRaises(OSError, self.linker.hardlink, self.path_src, path_dst)
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class TestLinkerCopy(TestLinkerBase):
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def test_copy(self):
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path_dst = os.path.join(self.topdir, "b")
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# copy 'file' to 'b'
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self.linker.copy(self.path_src, path_dst)
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self.assertTrue(os.path.isfile(path_dst))
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self.assertDifferentFile(self.path_src, path_dst)
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def test_copy_to_existing_file_with_different_content(self):
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path_dst = os.path.join(self.topdir, "b")
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helpers.touch(path_dst, "xxx")
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self.assertRaises(Exception, self.linker.copy, self.path_src, path_dst)
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def test_copy_to_directory(self):
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dir_dst = os.path.join(self.topdir, "foo")
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os.makedirs(dir_dst)
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path_dst = os.path.join(dir_dst, "bar")
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self.linker.copy(self.path_src, path_dst)
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self.assertTrue(os.path.isfile(path_dst))
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self.assertDifferentFile(self.path_src, path_dst)
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def test_copy_different_type(self):
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# try to copy a file to existing dst with incompatible type
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path_dst = os.path.join(self.topdir, "symlink")
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os.symlink(self.path_src, path_dst)
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self.assertRaises(OSError, self.linker.copy, self.path_src, path_dst)
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class TestLinkerLink(TestLinkerBase):
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def setUp(self):
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# This will create following structure as a source.
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#
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# + src/
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# + file1
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# + file2
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# + symlink2 (-> 'subdir')
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# + symlink3 (-> 'does-not-exist')
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# + hardlink1 (same file as 'file1')
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# + subdir/
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# + file3
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# + symlink1 (-> '../file1')
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#
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# The destination paths are are similar, but in dst/ top-level dir.
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super(TestLinkerLink, self).setUp()
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self.src_dir = self.mkdir("src")
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self.file1 = self.touch("src/file1", "file1")
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self.file2 = self.touch("src/file2", "file2")
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os.utime(self.file2, (-1, 2))
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self.file3 = self.touch("src/subdir/file3", "file3")
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os.utime(self.file3, (-1, 3))
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os.utime(os.path.dirname(self.file3), (-1, 31))
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self.symlink1 = os.path.join(self.topdir, "src/subdir/symlink1")
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os.symlink("../file1", self.symlink1)
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self.symlink2 = os.path.join(self.topdir, "src/symlink2")
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os.symlink("subdir", self.symlink2)
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self.symlink3 = os.path.join(self.topdir, "src/symlink3")
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os.symlink("does-not-exist", self.symlink3)
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self.hardlink1 = os.path.join(self.topdir, "src/hardlink1")
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os.link(self.file1, self.hardlink1)
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self.dst_dir = os.path.join(self.topdir, "dst")
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self.dst_file1 = os.path.join(self.dst_dir, "file1")
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self.dst_file2 = os.path.join(self.dst_dir, "file2")
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self.dst_file3 = os.path.join(self.dst_dir, "subdir", "file3")
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self.dst_symlink1 = os.path.join(self.dst_dir, "subdir", "symlink1")
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self.dst_symlink2 = os.path.join(self.dst_dir, "symlink2")
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self.dst_symlink3 = os.path.join(self.dst_dir, "symlink3")
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self.dst_hardlink1 = os.path.join(self.dst_dir, "hardlink1")
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def test_link_file(self):
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dst = os.path.join(self.topdir, "hardlink")
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self.linker.link(self.path_src, dst, link_type="hardlink")
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self.assertTrue(self.same_inode(self.path_src, dst))
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self.assertFalse(os.path.islink(dst))
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def test_symlink_file(self):
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dst = os.path.join(self.topdir, "symlink")
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self.linker.link(self.path_src, dst, link_type="symlink")
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self.assertEqual(os.readlink(dst), "file")
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self.assertTrue(os.path.islink(dst))
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def test_copy_file(self):
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dst = os.path.join(self.topdir, "copy")
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self.linker.link(self.path_src, dst, link_type="copy")
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self.assertFalse(os.path.islink(dst))
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self.assertFalse(self.same_inode(self.path_src, dst))
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self.assertTrue(self.same_content(self.path_src, dst))
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def test_hardlink_or_copy_file(self):
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dst = os.path.join(self.topdir, "hardlink-or-copy")
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self.linker.link(self.path_src, dst, link_type="hardlink-or-copy")
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self.assertTrue(self.same_inode(self.path_src, dst))
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self.assertFalse(os.path.islink(dst))
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def test_link_file_test_mode(self):
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self.linker = linker.Linker(logger=self.logger, test=True)
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dst = os.path.join(self.topdir, "hardlink")
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self.linker.link(self.path_src, dst, link_type="hardlink")
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self.assertFalse(os.path.isdir(self.dst_dir))
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self.assertEqual(len(self.logger.mock_calls), 1)
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def test_symlink_file_test_mode(self):
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self.linker = linker.Linker(logger=self.logger, test=True)
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dst = os.path.join(self.topdir, "symlink")
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self.linker.link(self.path_src, dst, link_type="symlink")
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self.assertFalse(os.path.isdir(self.dst_dir))
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self.assertEqual(len(self.logger.mock_calls), 1)
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def test_copy_file_test_mode(self):
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self.linker = linker.Linker(logger=self.logger, test=True)
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dst = os.path.join(self.topdir, "copy")
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self.linker.link(self.path_src, dst, link_type="copy")
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self.assertFalse(os.path.isdir(self.dst_dir))
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self.assertEqual(len(self.logger.mock_calls), 1)
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def test_hardlink_or_copy_file_test_mode(self):
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self.linker = linker.Linker(logger=self.logger, test=True)
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dst = os.path.join(self.topdir, "hardlink-or-copy")
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self.linker.link(self.path_src, dst, link_type="hardlink-or-copy")
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self.assertFalse(os.path.isdir(self.dst_dir))
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self.assertEqual(len(self.logger.mock_calls), 1)
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def test_link_file_to_existing_destination(self):
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self.assertRaises(
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OSError, self.linker.link, self.file1, self.file2, link_type="hardlink"
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)
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def test_symlink_file_to_existing_destination(self):
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self.assertRaises(
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OSError, self.linker.link, self.file1, self.file2, link_type="symlink"
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)
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def test_copy_file_to_existing_destination(self):
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self.assertRaises(
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OSError, self.linker.link, self.file1, self.file2, link_type="copy"
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)
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def test_hardlink_or_copy_file_to_existing_destination(self):
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self.assertRaises(
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OSError,
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self.linker.link,
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self.file1,
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self.file2,
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link_type="hardlink-or-copy",
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)
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def test_link_dir_hardlink(self):
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self.linker.link(self.src_dir, self.dst_dir, link_type="hardlink")
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self.assertTrue(os.path.isfile(self.dst_file1))
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self.assertTrue(self.same_inode(self.file1, self.dst_file1))
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self.assertTrue(self.same_inode(self.file3, self.dst_file3))
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self.assertSameStat(
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os.path.dirname(self.file3), os.path.dirname(self.dst_file3)
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)
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# always preserve symlinks
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self.assertEqual(os.readlink(self.dst_symlink1), "../file1")
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self.assertEqual(os.readlink(self.dst_symlink2), "subdir")
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self.assertEqual(os.readlink(self.dst_symlink3), "does-not-exist")
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def test_link_dir_copy(self):
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self.linker.link(self.src_dir, self.dst_dir, link_type="copy")
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self.assertTrue(os.path.isfile(self.dst_file1))
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self.assertFalse(self.same_inode(self.file1, self.dst_file1))
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self.assertFalse(self.same_inode(self.file3, self.dst_file3))
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self.assertSameStat(
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os.path.dirname(self.file3), os.path.dirname(self.dst_file3)
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)
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# always preserve symlinks
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self.assertEqual(os.readlink(self.dst_symlink1), "../file1")
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self.assertEqual(os.readlink(self.dst_symlink2), "subdir")
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self.assertEqual(os.readlink(self.dst_symlink3), "does-not-exist")
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def test_link_dir_copy_test_mode(self):
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# turn test mode on
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self.linker = linker.Linker(logger=self.logger, test=True)
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self.linker.link(self.src_dir, self.dst_dir, link_type="copy")
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# dst_dir should not even exist
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self.assertFalse(os.path.isdir(self.dst_dir))
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def test_link_dir_symlink(self):
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self.linker.link(self.src_dir, self.dst_dir, link_type="symlink")
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self.assertTrue(os.path.isfile(self.dst_file1))
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self.assertTrue(os.path.islink(self.dst_file1))
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self.assertTrue(os.path.isdir(os.path.dirname(self.file3)))
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# always preserve symlinks
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self.assertEqual(os.readlink(self.dst_symlink1), "../file1")
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self.assertEqual(os.readlink(self.dst_symlink2), "subdir")
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self.assertEqual(os.readlink(self.dst_symlink3), "does-not-exist")
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def test_link_dir_abspath_symlink(self):
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self.linker.link(self.src_dir, self.dst_dir, link_type="abspath-symlink")
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self.assertTrue(os.path.isfile(self.dst_file1))
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self.assertTrue(os.path.islink(self.dst_file1))
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self.assertEqual(os.readlink(self.dst_file1), self.file1)
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self.assertSameStat(
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os.path.dirname(self.file3), os.path.dirname(self.dst_file3)
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)
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self.assertTrue(os.path.isdir(os.path.dirname(self.file3)))
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# always preserve symlinks
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self.assertEqual(os.readlink(self.dst_symlink1), "../file1")
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self.assertEqual(os.readlink(self.dst_symlink2), "subdir")
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self.assertEqual(os.readlink(self.dst_symlink3), "does-not-exist")
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def test_copy_preserve_hardlinks(self):
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self.assertTrue(self.same_inode(self.file1, self.hardlink1))
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self.linker.link(self.src_dir, self.dst_dir, link_type="copy")
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self.assertTrue(self.same_inode(self.dst_file1, self.dst_hardlink1))
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