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| 1 | +import camelcaseKeys from './camelcase-keys.js' |
| 2 | +import {describe, expect, test} from 'vitest' |
| 3 | + |
| 4 | +describe('camelcaseKeys', () => { |
| 5 | + test('converts snake_case keys', () => { |
| 6 | + expect(camelcaseKeys({foo_bar: 1, baz_qux: 2})).toEqual({fooBar: 1, bazQux: 2}) |
| 7 | + }) |
| 8 | + |
| 9 | + test('converts kebab-case keys', () => { |
| 10 | + expect(camelcaseKeys({'foo-bar': 1, 'baz-qux': 2})).toEqual({fooBar: 1, bazQux: 2}) |
| 11 | + }) |
| 12 | + |
| 13 | + test('leaves camelCase keys unchanged', () => { |
| 14 | + expect(camelcaseKeys({alreadyCamel: 1})).toEqual({alreadyCamel: 1}) |
| 15 | + }) |
| 16 | + |
| 17 | + test('handles null and undefined values', () => { |
| 18 | + expect(camelcaseKeys({foo_bar: null, baz_qux: undefined})).toEqual({fooBar: null, bazQux: undefined}) |
| 19 | + }) |
| 20 | + |
| 21 | + test('handles arrays at top level', () => { |
| 22 | + expect(camelcaseKeys([{foo_bar: 1}])).toEqual([{foo_bar: 1}]) |
| 23 | + }) |
| 24 | + |
| 25 | + test('does not recurse by default', () => { |
| 26 | + expect(camelcaseKeys({foo_bar: {nested_key: 1}})).toEqual({fooBar: {nested_key: 1}}) |
| 27 | + }) |
| 28 | + |
| 29 | + test('recurses with deep: true', () => { |
| 30 | + expect(camelcaseKeys({foo_bar: {nested_key: 1}}, {deep: true})).toEqual({fooBar: {nestedKey: 1}}) |
| 31 | + }) |
| 32 | + |
| 33 | + test('recurses into arrays with deep: true', () => { |
| 34 | + expect(camelcaseKeys({arr: [{nested_key: 1}]}, {deep: true})).toEqual({arr: [{nestedKey: 1}]}) |
| 35 | + }) |
| 36 | + |
| 37 | + test('handles top-level arrays with deep: true', () => { |
| 38 | + expect(camelcaseKeys([{foo_bar: 1}], {deep: true})).toEqual([{fooBar: 1}]) |
| 39 | + }) |
| 40 | + |
| 41 | + test('returns primitives unchanged', () => { |
| 42 | + expect(camelcaseKeys(null as any)).toBeNull() |
| 43 | + expect(camelcaseKeys('hello' as any)).toBe('hello') |
| 44 | + }) |
| 45 | + |
| 46 | + test('handles empty object', () => { |
| 47 | + expect(camelcaseKeys({})).toEqual({}) |
| 48 | + }) |
| 49 | + |
| 50 | + test('preserves Date values with deep: true', () => { |
| 51 | + const date = new Date('2024-01-01') |
| 52 | + const result = camelcaseKeys({created_at: date}, {deep: true}) |
| 53 | + expect(result).toEqual({createdAt: date}) |
| 54 | + }) |
| 55 | + |
| 56 | + test('does not recurse into Date objects with deep: true', () => { |
| 57 | + const date = new Date('2024-01-01') |
| 58 | + const result: Record<string, unknown> = camelcaseKeys({foo_bar: date}, {deep: true}) |
| 59 | + expect(result.fooBar).toBeInstanceOf(Date) |
| 60 | + }) |
| 61 | +}) |
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