70 lines
2.9 KiB
Python
70 lines
2.9 KiB
Python
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"""Tests for #838 — slash command dropdown keyboard navigation keeps the
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selected item in view."""
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import os
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import re
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_SRC = os.path.join(os.path.dirname(__file__), "..")
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def _read(name):
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return open(os.path.join(_SRC, name), encoding="utf-8").read()
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class TestNavigateCmdDropdownScroll:
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"""navigateCmdDropdown must scroll the newly selected item into view so
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keyboard navigation on a long list doesn't leave the highlight below the
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visible area of the dropdown."""
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def test_navigate_calls_scroll_into_view(self):
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js = _read("static/commands.js")
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m = re.search(r'function navigateCmdDropdown\(.*?\n\}', js, re.DOTALL)
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assert m, "navigateCmdDropdown not found"
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fn = m.group(0)
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assert 'scrollIntoView' in fn, (
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"navigateCmdDropdown must call scrollIntoView on the newly "
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"selected item so ↓/↑ keeps the highlight visible (#838)"
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)
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def test_scroll_uses_nearest_block_alignment(self):
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"""`{block:'nearest'}` is the correct option: scrolls only when
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needed, minimum distance — won't jump the list around on every
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arrow-key press when the item is already in view."""
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js = _read("static/commands.js")
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m = re.search(r'function navigateCmdDropdown\(.*?\n\}', js, re.DOTALL)
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assert m
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fn = m.group(0)
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assert "block:'nearest'" in fn or 'block: "nearest"' in fn, (
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"scrollIntoView should use {block:'nearest'} to scroll the "
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"minimum amount needed"
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)
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def test_scroll_after_selected_class_update(self):
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"""The scroll call must come AFTER adding the .selected class so
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the correct item is targeted."""
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js = _read("static/commands.js")
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m = re.search(r'function navigateCmdDropdown\(.*?\n\}', js, re.DOTALL)
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assert m
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fn = m.group(0)
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selected_pos = fn.find("classList.add('selected')")
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scroll_pos = fn.find("scrollIntoView")
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assert selected_pos != -1 and scroll_pos != -1
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assert selected_pos < scroll_pos, (
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"scrollIntoView must run after classList.add('selected') so it "
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"scrolls the newly-highlighted item into view"
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)
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def test_cmd_dropdown_is_scroll_container(self):
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"""Regression guard: the .cmd-dropdown must have overflow-y:auto
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(or similar) so scrollIntoView finds it as the scroll ancestor
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rather than bubbling up to the viewport."""
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css = _read("static/style.css")
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m = re.search(r'\.cmd-dropdown\s*\{[^}]+\}', css)
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assert m, ".cmd-dropdown rule not found"
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block = m.group(0)
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assert 'overflow-y:auto' in block or 'overflow-y: auto' in block or \
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'overflow:auto' in block or 'overflow: auto' in block, (
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".cmd-dropdown must have overflow-y:auto so scrollIntoView "
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"scrolls within the dropdown, not the whole page"
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)
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