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fix: messages
deepCopy
mutates src
arguments
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Original file line number | Diff line number | Diff line change |
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import { deepCopy } from '../src/index' | ||
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test('deepCopy merges without mutating src argument', () => { | ||
const msg1 = { | ||
hello: 'Greetings', | ||
about: { | ||
title: 'About us' | ||
}, | ||
overwritten: 'Original text', | ||
fruit: [{ name: 'Apple' }] | ||
} | ||
const copy1 = structuredClone(msg1) | ||
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const msg2 = { | ||
bye: 'Goodbye', | ||
about: { | ||
content: 'Some text' | ||
}, | ||
overwritten: 'New text', | ||
fruit: [{ name: 'Strawberry' }], | ||
// @ts-ignore | ||
car: ({ plural }) => plural(['car', 'cars']) | ||
} | ||
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const merged = {} | ||
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deepCopy(msg1, merged) | ||
deepCopy(msg2, merged) | ||
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expect(merged).toMatchInlineSnapshot(` | ||
{ | ||
"about": { | ||
"content": "Some text", | ||
"title": "About us", | ||
}, | ||
"bye": "Goodbye", | ||
"car": [Function], | ||
"fruit": [ | ||
{ | ||
"name": "Strawberry", | ||
}, | ||
], | ||
"hello": "Greetings", | ||
"overwritten": "New text", | ||
} | ||
`) | ||
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// should not mutate source object | ||
expect(msg1).toStrictEqual(copy1) | ||
}) |