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Merge pull request #226 from appy-one/fix/issue-225
Fix issue #225
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,103 @@ | ||
| import { AceBase } from '..'; | ||
| import { createTempDB } from './tempdb'; | ||
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| describe('issue #225', () => { | ||
| let db: AceBase; | ||
| let removeDB: () => Promise<void>; | ||
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| beforeAll(async () => { | ||
| ({ db, removeDB } = await createTempDB({ logLevel: 'warn' })); | ||
| }); | ||
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| afterAll(async () => { | ||
| await removeDB(); | ||
| }); | ||
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| it('realtime query and indexed deletes', async () => { | ||
| // Create indexes | ||
| await db.indexes.create('items', 'location'); | ||
| await db.indexes.create('items', 'category'); | ||
| await db.indexes.create('items', 'status'); | ||
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| const eventStats = { add: 0, change: 0, remove: 0 }; | ||
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| // Setup realtime query | ||
| const realtimeQuery = db.query('items') | ||
| .filter('category', '==', 'main') | ||
| .filter('status', '==', 1) | ||
| .on('add', event => { | ||
| eventStats.add++; | ||
| const item = event.snapshot.val(); | ||
| console.log(`Added item ${event.ref.key}:`, item); | ||
| }) | ||
| .on('change', event => { | ||
| eventStats.change++; | ||
| const item = event.snapshot.val(); | ||
| console.log(`Changed item ${event.ref.key}:`, item); | ||
| }) | ||
| .on('remove', event => { | ||
| eventStats.remove++; | ||
| console.log(`Removed item ${event.ref.key}`); | ||
| }); | ||
|
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| // Get initial (no) results | ||
| const results = await realtimeQuery.get(); | ||
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| // Add a bunch of items, should trigger "add" events on realtime query | ||
| const TEST_SIZE = 1000; | ||
| const itemIds = [] as string[]; | ||
| const locations = ['Amsterdam', 'Cape Town', 'Sydney', 'Miami', 'Toronto', 'Berlin', 'Paris']; | ||
| for (let i = 0; i < TEST_SIZE; i++) { | ||
| const ref = await db.ref('items').push({ | ||
| location: locations[Math.floor(Math.random() * locations.length)], | ||
| category: 'main', | ||
| status: 1, | ||
| }); | ||
| itemIds.push(ref.key); | ||
| } | ||
|
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| // Update every other item to status 2, should trigger 500 "remove" events on realtime query | ||
| for (let i = 0; i < itemIds.length; i += 2) { | ||
| await db.ref('items').child(itemIds[i]).update({ | ||
| status: 2, | ||
| }); | ||
| } | ||
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| // Update every 3rd item to location 'Amsterdam', should trigger "change" events on realtime query | ||
| for (let i = 0; i < itemIds.length; i += 3) { | ||
| await db.ref('items').child(itemIds[i]).update({ | ||
| location: 'Amsterdam', | ||
| }); | ||
| } | ||
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| // Update every 3rd item to status 3, should trigger some more "remove" events on realtime query | ||
| for (let i = 0; i < itemIds.length; i += 3) { | ||
| await db.ref('items').child(itemIds[i]).update({ | ||
| status: 3, | ||
| }); | ||
| } | ||
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| // Remove items with status 1, should trigger all remaining "remove" events on realtime query (0 results left) | ||
| await db.query('items').filter('status', '==', 1).remove(); | ||
|
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| // Wait for all remove events to fire | ||
| console.log('Waiting for all remove events to fire'); | ||
| await new Promise<void>(resolve => { | ||
| let eventsFired = eventStats.remove; | ||
| const check = () => { | ||
| if (eventsFired === eventStats.remove) { | ||
| // All fired | ||
| return resolve(); | ||
| } | ||
| eventsFired = eventStats.remove; | ||
| setTimeout(check, 100); // Schedule next check | ||
| }; | ||
| setTimeout(check, 1000); // Schedule first check | ||
| }); | ||
|
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| // Stop live query | ||
| await realtimeQuery.stop(); | ||
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| console.log(`${eventStats.add} added, ${eventStats.change} changed, ${eventStats.remove} removed`); | ||
| }, 600_000); | ||
| }); |