def test_dvc_sets_some_options_on_less_if_less_env_defined(
mocker, monkeypatch, env):
if env:
monkeypatch.setenv(env, "less")
mocker.patch("sys.stdout.isatty", return_value=True)
mocker.patch("os.system", return_value=0)
monkeypatch.setenv(LESS, "-R")
assert find_pager() == "less --RAW-CONTROL-CHARS --chop-long-lines"
def test_dvc_sets_default_options_on_less_without_less_env(
mocker, monkeypatch, env):
if env:
monkeypatch.setenv(env, "less")
mocker.patch("sys.stdout.isatty", return_value=True)
mocker.patch("os.system", return_value=0)
assert find_pager() == ("less --quit-if-one-screen --RAW-CONTROL-CHARS"
" --chop-long-lines --no-init")
def test_find_pager_fails_to_find_any_pager(mocker):
mocker.patch("os.system", return_value=1)
mocker.patch("sys.stdout.isatty", return_value=True)
assert find_pager() is None
def test_find_pager_uses_default_pager_when_found(mocker):
mocker.patch("sys.stdout.isatty", return_value=True)
mocker.patch("os.system", return_value=0)
assert DEFAULT_PAGER in find_pager()
def test_find_pager_uses_custom_pager_when_pager_env_is_defined(
mocker, monkeypatch):
monkeypatch.setenv(PAGER_ENV, "my-pager")
mocker.patch("sys.stdout.isatty", return_value=True)
assert find_pager() == "my-pager"
def test_find_pager_when_not_isatty(mocker):
mocker.patch("sys.stdout.isatty", return_value=False)
assert find_pager() is None