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deepseek-harness/packages/client/ui-primitives/tests/tooltip.spec.tsx
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// @vitest-environment jsdom
import { act, cleanup, fireEvent, render, screen } from '@testing-library/react'
import { afterEach, describe, expect, it, vi } from 'vitest'
import { Tooltip } from '@deepseek-ai/dsh-client-ui-primitives'
afterEach(cleanup)
describe('Tooltip', () => {
it('can delay pointer hover without delaying keyboard focus', () => {
vi.useFakeTimers()
try {
render(
<Tooltip label="Timing details" delayMs={500}>
<button type="button">anchor</button>
</Tooltip>,
)
const anchor = screen.getByText('anchor')
fireEvent.mouseEnter(anchor)
act(() => { vi.advanceTimersByTime(499) })
expect(screen.queryByRole('tooltip')).toBeNull()
fireEvent.mouseLeave(anchor)
act(() => { vi.advanceTimersByTime(1) })
expect(screen.queryByRole('tooltip')).toBeNull()
fireEvent.mouseEnter(anchor)
act(() => { vi.advanceTimersByTime(500) })
expect(screen.getByRole('tooltip').textContent).toBe('Timing details')
fireEvent.mouseLeave(anchor)
fireEvent.focus(anchor)
expect(screen.getByRole('tooltip').textContent).toBe('Timing details')
} finally {
vi.useRealTimers()
}
})
it('shows the bubble to the right on hover and hides it on leave', () => {
render(
<Tooltip label="Open sidebar">
<button type="button">anchor</button>
</Tooltip>,
)
const anchor = screen.getByText('anchor')
fireEvent.mouseEnter(anchor)
const bubble = screen.getByRole('tooltip')
expect(bubble.textContent).toBe('Open sidebar')
expect(bubble.getAttribute('data-side')).toBe('right')
// jsdom rects are all-zero: right placement lands at the +10 gutter, then
// the zero-width measured rect clamps to the 12px edge margin (10 + 12).
expect(bubble.style.left).toBe('22px')
expect(bubble.style.top).toBe('0px')
fireEvent.mouseLeave(anchor)
expect(screen.queryByRole('tooltip')).toBeNull()
})
it('supports bottom placement and the focus/blur channel', () => {
render(
<Tooltip label="Below" side="bottom">
<button type="button">anchor</button>
</Tooltip>,
)
const anchor = screen.getByText('anchor')
fireEvent.focus(anchor)
const bubble = screen.getByRole('tooltip')
expect(bubble.getAttribute('data-side')).toBe('bottom')
// Zero-width jsdom rect at x=0 clamps to the 12px edge margin.
expect(bubble.style.left).toBe('12px')
expect(bubble.style.top).toBe('8px')
fireEvent.blur(anchor)
expect(screen.queryByRole('tooltip')).toBeNull()
})
// jsdom's default rects are all-zero, so the clamp tests stub the measured
// rect (anchor and bubble share the prototype stub) and derive expectations
// from it: pos.x = anchor center, then shifted by the measured overflow.
const rect = (left: number, right: number): DOMRect =>
({ left, right, top: 0, bottom: 20, width: right - left, height: 20, x: left, y: 0, toJSON: () => ({}) })
it('clamps a bubble overflowing the right viewport edge back inside', () => {
const spy = vi.spyOn(Element.prototype, 'getBoundingClientRect').mockReturnValue(rect(900, 1100))
try {
render(
<Tooltip label="Wide" side="bottom">
<button type="button">anchor</button>
</Tooltip>,
)
fireEvent.mouseEnter(screen.getByText('anchor'))
// pos.x = 1000 (anchor center); measured right edge 1100 overflows the
// 1024 viewport's 12px safe margin (limit 1012) by 88, so the clamp
// shifts left to 912.
expect(screen.getByRole('tooltip').style.left).toBe('912px')
} finally {
spy.mockRestore()
}
})
it('reclamps after label and viewport width changes', () => {
const originalWidth = window.innerWidth
const spy = vi.spyOn(Element.prototype, 'getBoundingClientRect').mockImplementation(function (this: Element) {
if (this.getAttribute('role') !== 'tooltip') return rect(900, 1000)
return this.textContent === 'Wide' ? rect(900, 1100) : rect(850, 950)
})
try {
const view = render(
<Tooltip label="Wide" side="bottom">
<button type="button">anchor</button>
</Tooltip>,
)
fireEvent.mouseEnter(screen.getByText('anchor'))
expect(screen.getByRole('tooltip').style.left).toBe('862px')
view.rerender(
<Tooltip label="Short" side="bottom">
<button type="button">anchor</button>
</Tooltip>,
)
expect(screen.getByRole('tooltip').style.left).toBe('950px')
Object.defineProperty(window, 'innerWidth', { configurable: true, value: 900 })
fireEvent(window, new Event('resize'))
expect(screen.getByRole('tooltip').style.left).toBe('888px')
} finally {
Object.defineProperty(window, 'innerWidth', { configurable: true, value: originalWidth })
spy.mockRestore()
}
})
it('clamps a bubble past the left viewport edge back inside', () => {
const spy = vi.spyOn(Element.prototype, 'getBoundingClientRect').mockReturnValue(rect(-20, 80))
try {
render(
<Tooltip label="Wide" side="bottom">
<button type="button">anchor</button>
</Tooltip>,
)
fireEvent.mouseEnter(screen.getByText('anchor'))
// pos.x = 30 (anchor center); measured left edge -20 underflows the
// 12px safe margin by 32, so the clamp shifts right to 62.
expect(screen.getByRole('tooltip').style.left).toBe('62px')
} finally {
spy.mockRestore()
}
})
it('supports top placement for anchors at the viewport bottom', () => {
render(
<Tooltip label="Above" side="top">
<button type="button">anchor</button>
</Tooltip>,
)
fireEvent.mouseEnter(screen.getByText('anchor'))
const bubble = screen.getByRole('tooltip')
expect(bubble.getAttribute('data-side')).toBe('top')
// jsdom rects are all-zero: top placement lands at the -8 gutter and the
// zero-width measured rect clamps left to the 12px edge margin.
expect(bubble.style.left).toBe('12px')
expect(bubble.style.top).toBe('-8px')
})
it('chains the anchor\'s own handlers ahead of the tooltip\'s', () => {
const onMouseEnter = vi.fn()
const onMouseLeave = vi.fn()
const onFocus = vi.fn()
const onBlur = vi.fn()
render(
<Tooltip label="Chained">
<button type="button" onMouseEnter={onMouseEnter} onMouseLeave={onMouseLeave} onFocus={onFocus} onBlur={onBlur}>anchor</button>
</Tooltip>,
)
const anchor = screen.getByText('anchor')
fireEvent.mouseEnter(anchor)
fireEvent.mouseLeave(anchor)
fireEvent.focus(anchor)
fireEvent.blur(anchor)
expect(onMouseEnter).toHaveBeenCalledOnce()
expect(onMouseLeave).toHaveBeenCalledOnce()
expect(onFocus).toHaveBeenCalledOnce()
expect(onBlur).toHaveBeenCalledOnce()
})
it('suppresses the bubble while disabled without remounting the anchor', () => {
const { rerender } = render(
<Tooltip label="Rail" disabled>
<button type="button">anchor</button>
</Tooltip>,
)
const anchor = screen.getByText('anchor')
fireEvent.mouseEnter(anchor)
expect(screen.queryByRole('tooltip')).toBeNull()
rerender(
<Tooltip label="Rail">
<button type="button">anchor</button>
</Tooltip>,
)
// Same DOM node: toggling disabled never remounted the anchor.
expect(screen.getByText('anchor')).toBe(anchor)
fireEvent.mouseEnter(anchor)
expect(screen.getByRole('tooltip')).toBeTruthy()
})
it('mouse leave hides the bubble immediately, even while the anchor stays focused', () => {
render(
<Tooltip label="Sticky">
<button type="button">anchor</button>
</Tooltip>,
)
const anchor = screen.getByText('anchor')
// Focused AND hovered: leaving with the mouse drops the bubble at once.
fireEvent.focus(anchor)
fireEvent.mouseEnter(anchor)
fireEvent.mouseLeave(anchor)
expect(screen.queryByRole('tooltip')).toBeNull()
// Re-entering shows it again; blurring while still hovered keeps it.
fireEvent.mouseEnter(anchor)
fireEvent.blur(anchor)
expect(screen.getByRole('tooltip')).toBeTruthy()
fireEvent.mouseLeave(anchor)
expect(screen.queryByRole('tooltip')).toBeNull()
})
it('forwards the anchor element to the child ref (object and callback)', () => {
const objectRef = { current: null as HTMLButtonElement | null }
const callbackRef = vi.fn()
const { rerender } = render(
<Tooltip label="Add">
<button type="button" ref={objectRef}>anchor</button>
</Tooltip>,
)
expect(objectRef.current).toBe(screen.getByText('anchor'))
// Tooltip's own positioning still works through the merged ref.
fireEvent.mouseEnter(screen.getByText('anchor'))
expect(screen.getByRole('tooltip')).toBeTruthy()
rerender(
<Tooltip label="Add">
<button type="button" ref={callbackRef}>anchor</button>
</Tooltip>,
)
expect(callbackRef).toHaveBeenCalledWith(screen.getByText('anchor'))
})
it('drops an already-visible bubble when disabled flips mid-hover', () => {
const { rerender } = render(
<Tooltip label="Rail">
<button type="button">anchor</button>
</Tooltip>,
)
fireEvent.mouseEnter(screen.getByText('anchor'))
expect(screen.getByRole('tooltip')).toBeTruthy()
// e.g. clicking a rail control expands the sidebar: no mouseleave fires.
rerender(
<Tooltip label="Rail" disabled>
<button type="button">anchor</button>
</Tooltip>,
)
expect(screen.queryByRole('tooltip')).toBeNull()
})
})