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start-os/sdk/base/lib/test/util.deepMerge.test.ts
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import { deepEqual } from '../util'
import { deepMerge } from '../util'
describe('deepMerge', () => {
test('deepMerge({}, {a: 1}, {b: 2}) should return {a: 1, b: 2}', () => {
expect(deepMerge({}, { a: 1 }, { b: 2 })).toEqual({ a: 1, b: 2 })
})
test('deepMerge(null, [1,2,3]) should equal [1,2,3]', () => {
expect(deepMerge(null, [1, 2, 3])).toEqual([1, 2, 3])
})
test('deepMerge({a: {b: 1, c:2}}, {a: {b: 3}}) should equal {a: {b: 3, c: 2}}', () => {
expect(deepMerge({ a: { b: 1, c: 2 } }, { a: { b: 3 } })).toEqual({
a: { b: 3, c: 2 },
})
})
test('deepMerge({a: {b: 1, c:2}}, {a: {b: 3}}) should equal {a: {b: 3, c: 2}} with deep equal', () => {
expect(
deepEqual(deepMerge({ a: { b: 1, c: 2 } }, { a: { b: 3 } }), {
a: { b: 3, c: 2 },
}),
).toBeTruthy()
})
test('Test that merging lists has Set semantics', () => {
const merge = deepMerge(['a', 'b'], ['b', 'c'])
expect(merge).toHaveLength(3)
expect(merge).toContain('a')
expect(merge).toContain('b')
expect(merge).toContain('c')
})
})