Replace reattach test code

test/integration/document_test.ts

@@ -815,40 +815,51 @@ describe('Document', function () {
       status: DocumentStatus.Detached,
     });
 
-    // 4. When the document is re-attached, it receives an attached event.
-    await c1.attach(d1, { syncMode: SyncMode.Manual });
-    await eventCollectorD1.waitAndVerifyNthEvent(3, {
+    // 4. When other document is attached, it receives an attached event.
+    const docKey2 = toDocKey(`${task.name}2-${new Date().getTime()}`);
+    const d3 = new yorkie.Document(docKey2);
+    const d4 = new yorkie.Document(docKey2);
+    const eventCollectorD3 = new EventCollector<StatusChangedEvent['value']>();
+    const eventCollectorD4 = new EventCollector<StatusChangedEvent['value']>();
+    const unsub3 = d3.subscribe('status', (event) => {
+      eventCollectorD3.add(event.value);
+    });
+    const unsub4 = d4.subscribe('status', (event) => {
+      eventCollectorD4.add(event.value);
+    });
+    await c1.attach(d3, { syncMode: SyncMode.Manual });
+    await eventCollectorD3.waitAndVerifyNthEvent(1, {
       status: DocumentStatus.Attached,
       actorID: c1ID,
     });
 
     await c2.activate();
     c2ID = c2.getID()!;
-    await c2.attach(d2, { syncMode: SyncMode.Manual });
-    await eventCollectorD2.waitAndVerifyNthEvent(3, {
+    await c2.attach(d4, { syncMode: SyncMode.Manual });
+    await eventCollectorD4.waitAndVerifyNthEvent(1, {
       status: DocumentStatus.Attached,
       actorID: c2ID,
     });
 
     // 5. When c1 removes a document, it receives a removed event.
-    await c1.remove(d1);
-    await eventCollectorD1.waitAndVerifyNthEvent(4, {
+    await c1.remove(d3);
+    await eventCollectorD3.waitAndVerifyNthEvent(2, {
       status: DocumentStatus.Removed,
     });
 
-    // 6. When c4 syncs, it should also receive a removed event.
+    // 6. When c2 syncs, it should also receive a removed event.
     await c2.sync();
-    await eventCollectorD2.waitAndVerifyNthEvent(4, {
+    await eventCollectorD4.waitAndVerifyNthEvent(2, {
       status: DocumentStatus.Removed,
     });
 
     // 7. If the document is in the removed state, a detached event should not occur when deactivating.
-    const eventCount1 = eventCollectorD1.getLength();
-    const eventCount2 = eventCollectorD2.getLength();
+    const eventCount3 = eventCollectorD3.getLength();
+    const eventCount4 = eventCollectorD4.getLength();
     await c1.deactivate();
     await c2.deactivate();
-    assert.equal(eventCollectorD1.getLength(), eventCount1);
-    assert.equal(eventCollectorD2.getLength(), eventCount2);
+    assert.equal(eventCollectorD3.getLength(), eventCount3);
+    assert.equal(eventCollectorD4.getLength(), eventCount4);
 
     unsub1();
     unsub2();