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30 lines
775 B
30 lines
775 B
import assert from 'assert'; |
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describe('concat', () => { |
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it('concatenates the supplied Observable arguments', async () => { |
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let list = []; |
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await Observable |
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.from([1, 2, 3, 4]) |
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.concat(Observable.of(5, 6, 7)) |
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.forEach(x => list.push(x)); |
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assert.deepEqual(list, [1, 2, 3, 4, 5, 6, 7]); |
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}); |
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it('can be used multiple times to produce the same results', async () => { |
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const list1 = []; |
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const list2 = []; |
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const concatenated = Observable.from([1, 2, 3, 4]) |
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.concat(Observable.of(5, 6, 7)); |
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await concatenated |
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.forEach(x => list1.push(x)); |
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await concatenated |
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.forEach(x => list2.push(x)); |
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assert.deepEqual(list1, [1, 2, 3, 4, 5, 6, 7]); |
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assert.deepEqual(list2, [1, 2, 3, 4, 5, 6, 7]); |
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}); |
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});
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