35 lines
1.1 KiB
JavaScript
35 lines
1.1 KiB
JavaScript
const { setDatabaseContents } = TestHelpers.database;
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// TODO use testRunId in refs to prevent multiple test instances interfering with each other
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describe('database()', () => {
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before(() => setDatabaseContents());
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describe('ref.transaction()', () => {
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it('increments a value', async () => {
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let valueBefore = 1;
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const ref = firebase.database().ref('tests/transaction');
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const { committed, snapshot } = await ref.transaction(currentData => {
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if (currentData === null) {
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return valueBefore + 10;
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}
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valueBefore = currentData;
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return valueBefore + 10;
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}, true);
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should.equal(committed, true, 'Transaction did not commit.');
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snapshot.val().should.equal(valueBefore + 10);
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});
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it('aborts if undefined returned', async () => {
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const ref = firebase.database().ref('tests/transaction');
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const { committed } = await ref.transaction(() => undefined, true);
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should.equal(
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committed,
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false,
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'Transaction committed and did not abort.'
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);
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});
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});
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});
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