135 lines
3.4 KiB
Python
135 lines
3.4 KiB
Python
from dataclasses import dataclass
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import pytest
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from fasthtml.components import Label, Input
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from myutils.observable import collect_return_values
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from myfasthtml.core.bindings import BindingsManager, Binding, DetectionMode
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@dataclass
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class Data:
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value: str = "Hello World"
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@pytest.fixture(autouse=True)
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def reset_binding_manager():
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BindingsManager.reset()
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@pytest.fixture()
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def data():
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return Data()
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def test_i_can_register_a_binding(data):
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binding = Binding(data, "value")
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assert binding.id is not None
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assert binding.data is data
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assert binding.data_attr == 'value'
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def test_i_can_register_a_binding_with_default_attr(data):
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binding = Binding(data)
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assert binding.id is not None
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assert binding.data is data
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assert binding.data_attr == 'value'
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def test_i_can_retrieve_a_registered_binding(data):
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binding = Binding(data)
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assert BindingsManager.get_binding(binding.id) is binding
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def test_i_can_reset_bindings(data):
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Binding(data)
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assert len(BindingsManager.bindings) != 0
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BindingsManager.reset()
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assert len(BindingsManager.bindings) == 0
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def test_i_can_bind_an_element_to_a_binding(data):
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elt = Label("hello", id="label_id")
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Binding(data, ft=elt)
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data.value = "new value"
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assert elt.children[0] == "new value"
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assert elt.attrs["hx-swap-oob"] == "true"
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assert elt.attrs["id"] == "label_id"
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def test_i_can_bind_an_element_attr_to_a_binding(data):
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elt = Input(value="somme value", id="input_id")
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Binding(data, ft=elt, ft_attr="value")
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data.value = "new value"
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assert elt.attrs["value"] == "new value"
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assert elt.attrs["hx-swap-oob"] == "true"
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assert elt.attrs["id"] == "input_id"
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def test_bound_element_has_an_id():
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elt = Label("hello")
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assert elt.attrs.get("id", None) is None
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Binding(Data(), ft=elt)
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assert elt.attrs.get("id", None) is not None
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def test_i_can_collect_updates_values(data):
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elt = Label("hello")
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Binding(data, ft=elt)
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data.value = "new value"
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collected = collect_return_values(data)
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assert collected == [elt]
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# a second time to ensure no side effect
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data.value = "another value"
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collected = collect_return_values(data)
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assert collected == [elt]
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def test_i_can_react_to_value_change(data):
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elt = Input(name="input_elt", value="hello")
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binding = Binding(data, ft=elt, ft_name="input_elt", ft_attr="value")
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res = binding.update({"input_elt": "new value"})
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assert len(res) == 1
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def test_i_do_not_react_to_other_value_change(data):
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elt = Input(name="input_elt", value="hello")
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binding = Binding(data, ft=elt, ft_name="input_elt", ft_attr="value")
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res = binding.update({"other_input_elt": "new value"})
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assert res is None
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def test_i_can_react_to_attr_presence(data):
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elt = Input(name="input_elt", type="checkbox")
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binding = Binding(data, ft=elt, ft_name="input_elt", ft_attr="checked",
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detection_mode=DetectionMode.AttributePresence)
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res = binding.update({"checked": "true"})
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assert len(res) == 1
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def test_i_can_react_to_attr_non_presence(data):
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elt = Input(name="input_elt", type="checkbox")
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binding = Binding(data, ft=elt, ft_name="input_elt", ft_attr="checked",
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detection_mode=DetectionMode.AttributePresence)
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res = binding.update({})
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assert len(res) == 1
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