def test_error_if_target_is_missing(self, tmpdir):
# - make a tempdir
# - attempt to make a link from a file to another (nonexisting) file
# - error should be thrown
with sh.pushd(tmpdir):
with pytest.raises(FileNotFoundError):
add_relative_symlink("doesnt_exist.txt", "some_link")
def test_subdir_is_made_when_subdir_doesnt_exist(self, tmpdir):
# - make a tempdir
# - add a file
# - make a link from a location in a non-existing subdir to the file
with sh.pushd(tmpdir):
sh.touch("a.txt")
link = "subdir/b.txt"
add_relative_symlink("a.txt", link)
assert os.path.islink(link)
assert os.readlink(link) == "../a.txt"
def test_error_if_linkloc_exists_but_is_not_a_link(self, tmpdir):
# - make a tempdir
# - add two files
# - make a link from one file to the other
# - making the link should fail since a (non-link) file exists at the
# link location
with sh.pushd(tmpdir):
sh.touch("a.txt")
sh.touch("b.txt")
with pytest.raises(FileExistsError):
add_relative_symlink("a.txt", "b.txt")
def test_make_fresh_link(self, tmpdir):
# - make a temp dir
# - add a file
# - use make_soft_link to make a link to that file from a previously
# non-existing location
target = "abc.txt"
link = "abc.link"
with sh.pushd(tmpdir):
sh.touch(target)
add_relative_symlink(target, link)
assert os.path.islink(link)
assert os.readlink(link) == target
def test_dont_throw_error_if_link_points_to_target(self, tmpdir, mocker):
# - make a temp dir
# - add a file
# - make a soft link to that file from a link-name
# - use make_soft_link to make a link to that file from the same link-name
# - check that the second call did not call os.symlink
target = "abc.txt"
link = "abc.link"
with sh.pushd(tmpdir):
sh.touch(target)
add_relative_symlink(target, link)
add_relative_symlink(target, link)
assert os.path.islink(link)
assert os.readlink(link) == target
def test_throw_error_if_rewriting_link(self, tmpdir, mocker):
# - make a temp dir
# - add two files
# - make a soft link to one file
# - attempt to make the link point to the other file
# - check that the second call throws an error
target1 = "abc.txt"
target2 = "def.txt"
link = "abc.link"
with sh.pushd(tmpdir):
sh.touch(target1)
sh.touch(target2)
add_relative_symlink(target1, link)
with pytest.raises(FileExistsError):
add_relative_symlink(target2, link)
def test_correct_relative_paths(self, tmpdir):
# - make a tempdir
# - add two directories A and B
# - add a file to A
# - make a link to A/the_file from in B using python
# - make a link to A/the_file from in B using relative paths in sh
# - test that the the two links have the same representation
with sh.pushd(tmpdir):
sh.mkdir("A")
sh.mkdir("B")
target = "A/some_file"
sh.touch(target)
link1 = "B/link1"
link2 = "B/link2"
add_relative_symlink(target, link1)
sh.ln("--symbolic", "--relative", target, link2)
assert os.readlink(link1) == os.readlink(link2)