def test_copyfile_from_symlink(tmp_path):
"""Test that copyfile works correctly when the source is a symlink with a
relative target, and a symlink to a symlink. (This can occur when creating
an environment if Python was installed using stow or homebrew.)"""
# Set up src/link2 -> ../src/link1 -> file.
# We will copy to a different directory, so misinterpreting either symlink
# will be detected.
src_dir = tmp_path / "src"
src_dir.mkdir()
with open(str(src_dir / "file"), "w") as f:
f.write("contents")
os.symlink("file", str(src_dir / "link1"))
os.symlink(str(Path("..") / "src" / "link1"), str(src_dir / "link2"))
# Check that copyfile works on link2.
# This may produce a symlink or a regular file depending on the platform --
# which doesn't matter as long as it has the right contents.
copy_path = tmp_path / "copy"
virtualenv.copyfile(str(src_dir / "link2"), str(copy_path))
with open(str(copy_path), "r") as f:
assert f.read() == "contents"
shutil.rmtree(str(src_dir))
os.remove(str(copy_path))
def test_copyfile_from_symlink(tmp_path):
"""Test that copyfile works correctly when the source is a symlink with a
relative target, and a symlink to a symlink. (This can occur when creating
an environment if Python was installed using stow or homebrew.)"""
# Set up src/link2 -> ../src/link1 -> file.
# We will copy to a different directory, so misinterpreting either symlink
# will be detected.
src_dir = tmp_path / "src"
src_dir.mkdir()
with open(str(src_dir / "file"), "w") as f:
f.write("contents")
os.symlink("file", str(src_dir / "link1"))
os.symlink(str(Path("..") / "src" / "link1"), str(src_dir / "link2"))
# Check that copyfile works on link2.
# This may produce a symlink or a regular file depending on the platform --
# which doesn't matter as long as it has the right contents.
copy_path = tmp_path / "copy"
virtualenv.copyfile(str(src_dir / "link2"), str(copy_path))
with open(str(copy_path), "r") as f:
assert f.read() == "contents"
shutil.rmtree(str(src_dir))
os.remove(str(copy_path))