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57 lines
1.6 KiB
Python
57 lines
1.6 KiB
Python
import pytest
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from textual.errors import DuplicateKeyHandlers
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from textual.events import Key
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from textual.widget import Widget
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class ValidWidget(Widget):
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called_by = None
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def key_x(self):
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self.called_by = self.key_x
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def key_ctrl_i(self):
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self.called_by = self.key_ctrl_i
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async def test_dispatch_key_valid_key():
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widget = ValidWidget()
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result = await widget.dispatch_key(Key(widget, key="x", char="x"))
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assert result is True
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assert widget.called_by == widget.key_x
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async def test_dispatch_key_valid_key_alias():
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"""When you press tab or ctrl+i, it comes through as a tab key event, but handlers for
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tab and ctrl+i are both considered valid."""
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widget = ValidWidget()
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result = await widget.dispatch_key(Key(widget, key="tab", char="\t"))
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assert result is True
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assert widget.called_by == widget.key_ctrl_i
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class DuplicateHandlersWidget(Widget):
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called_by = None
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def key_x(self):
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self.called_by = self.key_x
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def _key_x(self):
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self.called_by = self._key_x
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def key_tab(self):
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self.called_by = self.key_tab
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def key_ctrl_i(self):
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self.called_by = self.key_ctrl_i
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async def test_dispatch_key_raises_when_conflicting_handler_aliases():
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"""If you've got a handler for e.g. ctrl+i and a handler for tab, that's probably a mistake.
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In the terminal, they're the same thing, so we fail fast via exception here."""
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widget = DuplicateHandlersWidget()
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with pytest.raises(DuplicateKeyHandlers):
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await widget.dispatch_key(Key(widget, key="tab", char="\t"))
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assert widget.called_by == widget.key_tab
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