snapshot of https://github.com/tldraw/tldraw.git (main, 2026-09-23; blobs > 131072B omitted)

packages/commenting/src/ui/reaction-picker.test.ts

@@ -0,0 +1,36 @@
+import { MouseEvent } from 'react'
+import { describe, expect, it } from 'vitest'
+import { isMultiSelectPick } from './reaction-picker'
+
+function click(overrides: Partial<MouseEvent> = {}): MouseEvent {
+	return {
+		metaKey: false,
+		ctrlKey: false,
+		shiftKey: false,
+		altKey: false,
+		button: 0,
+		...overrides,
+	} as MouseEvent
+}
+
+describe('isMultiSelectPick', () => {
+	it('keeps the palette open on a shift pick', () => {
+		expect(isMultiSelectPick(click({ shiftKey: true }))).toBe(true)
+	})
+
+	it('closes on a plain pick', () => {
+		expect(isMultiSelectPick(click())).toBe(false)
+	})
+
+	// custom palettes may call onSelect without an event; that must keep today's close-on-pick
+	it('closes when no event is given', () => {
+		expect(isMultiSelectPick(undefined)).toBe(false)
+	})
+
+	it.each(['metaKey', 'ctrlKey', 'altKey'] as const)(
+		'does not treat a %s pick as multi-select',
+		(modifier) => {
+			expect(isMultiSelectPick(click({ [modifier]: true }))).toBe(false)
+		}
+	)
+})