Function TestRevCacheHitMultiCollection

db/revision_cache_test.go:1378–1419

TestRevCacheHitMultiCollection: - Create db with two collections - Add docs of the same ID to each collection the database - Perform a Get for each doc in each collection - Assert each doc returned is the correct one (correct rev ID etc) - Assert that each doc is found at the rev cache and no misses

(t *testing.T)

//   - Assert each doc returned is the correct one (correct rev ID etc)
//   - Assert that each doc is found at the rev cache and no misses are reported
func TestRevCacheHitMultiCollection(t *testing.T) {
	base.TestRequiresCollections(t)

	tb := base.GetTestBucket(t)
	defer tb.Close(base.TestCtx(t))
	dbOptions := DatabaseContextOptions{}
	dbOptions.Scopes = GetScopesOptions(t, tb, 2)

	db, ctx := SetupTestDBForBucketWithOptions(t, tb, dbOptions)
	defer db.Close(ctx)

	var collectionList []*DatabaseCollectionWithUser
	var revList []string
	// add a doc with the same docs id to each collection on the database
	for _, collection := range db.CollectionByID {
		collWIthUser := &DatabaseCollectionWithUser{
			DatabaseCollection: collection,
		}
		collectionList = append(collectionList, collWIthUser)
	}

	// add a doc to each collection on the db with the same document id (testing the cache still gets unique keys)
	for i, collection := range collectionList {
		ctx := collection.AddCollectionContext(ctx)
		docRevID, _, err := collection.Put(ctx, "doc", Body{"test": fmt.Sprintf("doc%d", i)})
		require.NoError(t, err)
		revList = append(revList, docRevID)
	}

	// Perform a get for the doc in each collection
	for i, collection := range collectionList {
		ctx := collection.AddCollectionContext(ctx)
		docRev, err := collection.GetRev(ctx, "doc", revList[i], false, nil)
		require.NoError(t, err)
		assert.Equal(t, "doc", docRev.DocID)
		assert.Equal(t, revList[i], docRev.RevID)
	}

	// assert that both docs were found in rev cache and no cache misses are being reported
	assert.Equal(t, int64(2), db.DbStats.Cache().RevisionCacheHits.Value())
	assert.Equal(t, int64(0), db.DbStats.Cache().RevisionCacheMisses.Value())
}

// TestRevCacheHitMultiCollectionLoadFromBucket:
//   - Create db with two collections and have rev cache size of 1