| import { isAbortError } from '$lib/utils/abort'; |
| import { describe, expect, it } from 'vitest'; |
|
|
| describe('isAbortError', () => { |
| it('returns false for null, undefined and non-error values', () => { |
| expect(isAbortError(null)).toBe(false); |
| expect(isAbortError(undefined)).toBe(false); |
| expect(isAbortError('string error')).toBe(false); |
| expect(isAbortError({ name: 'AbortError' })).toBe(false); |
| expect(isAbortError(42)).toBe(false); |
| }); |
|
|
| it('returns true for DOMException with AbortError name', () => { |
| const err = new DOMException('Operation was aborted', 'AbortError'); |
|
|
| expect(isAbortError(err)).toBe(true); |
| }); |
|
|
| it('returns true for plain Error with AbortError name', () => { |
| const err = new Error('aborted'); |
|
|
| err.name = 'AbortError'; |
| expect(isAbortError(err)).toBe(true); |
| }); |
|
|
| it('returns false for unrelated Error instances', () => { |
| expect(isAbortError(new Error('something failed'))).toBe(false); |
| expect(isAbortError(new TypeError('not related'))).toBe(false); |
| expect(isAbortError(new RangeError('out of range'))).toBe(false); |
| }); |
|
|
| it('recognizes Firefox TypeError "Error in input stream" emitted at page unload', () => { |
| expect(isAbortError(new TypeError('Error in input stream'))).toBe(true); |
| expect(isAbortError(new TypeError('TypeError: Error in input stream'))).toBe(true); |
| }); |
|
|
| it('recognizes Safari "The network connection was lost" during transient drop', () => { |
| expect(isAbortError(new TypeError('The network connection was lost.'))).toBe(true); |
| }); |
|
|
| it('recognizes Safari "Load failed" during page navigation', () => { |
| expect(isAbortError(new TypeError('Load failed'))).toBe(true); |
| }); |
|
|
| it('does NOT recognize generic TypeError messages as aborts', () => { |
| |
| expect(isAbortError(new TypeError('Failed to fetch'))).toBe(false); |
| expect(isAbortError(new TypeError('Cannot read property of undefined'))).toBe(false); |
| expect(isAbortError(new TypeError('NetworkError when attempting to fetch resource'))).toBe( |
| false |
| ); |
| }); |
|
|
| it('is case insensitive on the matched substrings', () => { |
| expect(isAbortError(new TypeError('error in INPUT STREAM'))).toBe(true); |
| expect(isAbortError(new TypeError('the network connection WAS LOST'))).toBe(true); |
| }); |
| }); |
|
|
