test_dash_validator.py

import pytest
from _plotly_utils.basevalidators import DashValidator


# Constants
# ---------
dash_types = ["solid", "dot", "dash", "longdash", "dashdot", "longdashdot"]


# Fixtures
# --------
@pytest.fixture()
def validator():
    return DashValidator("prop", "parent", dash_types)


# Acceptance
# ----------
@pytest.mark.parametrize("val", dash_types)
def test_acceptance_dash_types(val, validator):
    # Values should be accepted and returned unchanged
    assert validator.validate_coerce(val) == val


@pytest.mark.parametrize(
    "val",
    [
        "2",
        "2.2",
        "2.002",
        "1 2 002",
        "1,2,3",
        "1, 2, 3",
        "1px 2px 3px",
        "1.5px, 2px, 3.9px",
        "23% 18% 13px",
        "200%   3px",
    ],
)
def test_acceptance_dash_lists(val, validator):
    # Values should be accepted and returned unchanged
    assert validator.validate_coerce(val) == val


# Rejection
# ---------
# ### Value Rejection ###
@pytest.mark.parametrize("val", ["bogus", "not-a-dash"])
def test_rejection_by_bad_dash_type(val, validator):
    with pytest.raises(ValueError) as validation_failure:
        validator.validate_coerce(val)

    assert "Invalid value" in str(validation_failure.value)


@pytest.mark.parametrize("val", ["", "1,,3,4", "2 3 C", "2pxx 3 4"])
def test_rejection_by_bad_dash_list(val, validator):
    with pytest.raises(ValueError) as validation_failure:
        validator.validate_coerce(val)

    assert "Invalid value" in str(validation_failure.value)