Polish workbench keyboard focus

backend/tests/test_sprint79_accessibility_focus_polish.py

@@ -0,0 +1,43 @@
+from pathlib import Path
+
+
+ROOT = Path(__file__).resolve().parents[2]
+
+
+def test_global_focus_visible_contracts_are_defined() -> None:
+    css = (ROOT / "frontend" / "src" / "styles" / "app.css").read_text(encoding="utf-8")
+
+    assert "--focus-ring" in css
+    assert "--focus-ring-soft" in css
+    assert "button:focus-visible" in css
+    assert ".nav-item:focus-visible" in css
+    assert ".command-chip:focus-visible" in css
+    assert ".inspector-tab:focus-visible" in css
+    assert ".dataset-action-button:focus-visible" in css
+    assert "outline: 3px solid var(--focus-ring);" in css
+    assert "outline-offset: 2px;" in css
+
+
+def test_primary_navigation_has_keyboard_labels() -> None:
+    app = (ROOT / "frontend" / "src" / "App.tsx").read_text(encoding="utf-8")
+
+    assert 'aria-label={`Open ${item.label} workspace: ${item.description}`}' in app
+    assert 'aria-label={`Switch to ${item.label} workspace`}' in app
+    assert 'aria-label="Open data setup workspace"' in app
+    assert 'aria-label="Inspect map workspace"' in app
+    assert 'aria-label="Review QA/QC workspace"' in app
+    assert 'aria-label="Manage exports workspace"' in app
+
+
+def test_inspector_tabs_are_bound_to_tab_panels() -> None:
+    inspector = (ROOT / "frontend" / "src" / "components" / "inspector" / "WorkbenchInspector.tsx").read_text(
+        encoding="utf-8"
+    )
+
+    assert "const activeTabId = `inspector-tab-${activeTab}`" in inspector
+    assert "const activePanelId = `inspector-panel-${activeTab}`" in inspector
+    assert "aria-controls={`inspector-panel-${tab.key}`}" in inspector
+    assert "id={`inspector-tab-${tab.key}`}" in inspector
+    assert 'role="tabpanel"' in inspector
+    assert "id={activePanelId}" in inspector
+    assert "aria-labelledby={activeTabId}" in inspector