41 lines
1.9 KiB
TypeScript
41 lines
1.9 KiB
TypeScript
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import { describe, expect, it, vi } from 'vitest'
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import {
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assertNoReactTestWarnings,
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createReactWarningGuard,
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formatReactTestWarnings,
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isReactTestWarning,
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} from './test-warning-guard'
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describe('React test warning guard', () => {
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it('recognizes React act and duplicate-key warnings only', () => {
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expect(isReactTestWarning(['Warning: An update to Example inside a test was not wrapped in act(...).'])).toBe(true)
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expect(isReactTestWarning(['Warning: Each child in a list should have a unique "key" prop.'])).toBe(true)
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expect(isReactTestWarning(['Warning: Encountered two children with the same key, `duplicate`.'])).toBe(true)
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expect(isReactTestWarning(['network request failed'])).toBe(false)
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})
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it('collects target warnings for one compact diagnostic and forwards unrelated errors', () => {
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const originalConsoleError = vi.fn()
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const warnings: unknown[][] = []
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const guardedConsoleError = createReactWarningGuard(originalConsoleError, warnings)
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guardedConsoleError('Warning: An update to Example inside a test was not wrapped in act(...)')
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guardedConsoleError('Warning: An update to Other inside a test was not wrapped in act(...)')
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guardedConsoleError('Warning: Encountered two children with the same key, `duplicate`.')
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guardedConsoleError('network request failed', { status: 500 })
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expect(originalConsoleError).toHaveBeenCalledTimes(1)
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expect(originalConsoleError).toHaveBeenCalledWith('network request failed', { status: 500 })
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expect(formatReactTestWarnings(warnings)).toBe(
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'React act warning: 2, React duplicate-key warning: 1 (Example, Other)',
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)
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expect(() => assertNoReactTestWarnings(warnings)).toThrow(
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'React test warning guard: React act warning: 2, React duplicate-key warning: 1 (Example, Other).',
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)
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})
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it('passes only when no target warnings were captured', () => {
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expect(() => assertNoReactTestWarnings([])).not.toThrow()
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})
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})
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