Load balancing tests #218
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| // | ||
| // DISCLAIMER | ||
| // | ||
| // Copyright 2018 ArangoDB GmbH, Cologne, Germany | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
| // | ||
| // Copyright holder is ArangoDB GmbH, Cologne, Germany | ||
| // | ||
| // Author Ewout Prangsma | ||
| // | ||
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| package tests | ||
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| import ( | ||
| "context" | ||
| "reflect" | ||
| "testing" | ||
| "time" | ||
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| "github.com/dchest/uniuri" | ||
| "github.com/stretchr/testify/assert" | ||
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| driver "github.com/arangodb/go-driver" | ||
| api "github.com/arangodb/kube-arangodb/pkg/apis/deployment/v1alpha" | ||
| "github.com/arangodb/kube-arangodb/pkg/client" | ||
| "github.com/arangodb/kube-arangodb/pkg/util" | ||
| ) | ||
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| type queryTest struct { | ||
| Query string | ||
| BindVars map[string]interface{} | ||
| ExpectSuccess bool | ||
| ExpectedDocuments []interface{} | ||
| DocumentType reflect.Type | ||
| } | ||
|
|
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| type queryTestContext struct { | ||
| Context context.Context | ||
| ExpectCount bool | ||
| } | ||
|
|
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| func TestLoadBalancingCursorVST(t *testing.T) { | ||
| // run with VST | ||
| TestLoadBalancingCursorSubtest(t, true) | ||
| } | ||
|
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| func TestLoadBalancingCursorHTTP(t *testing.T) { | ||
| // run with HTTP | ||
| TestCursorLoadBalancingTestSubtest(t, false) | ||
| } | ||
|
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| // TestLoadBalancerCursorVST tests cursor forwarding with load-balanced conn. | ||
| func TestLoadBalancingCursorSubtest(t *testing.T, useVst bool) { | ||
| c := client.MustNewInCluster() | ||
| kubecli := mustNewKubeClient(t) | ||
| ns := getNamespace(t) | ||
|
|
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| // Prepare deployment config | ||
| depl := newDeployment("test-lb-" + uniuri.NewLen(4)) | ||
| depl.Spec.Mode = api.NewMode(api.DeploymentModeCluster) | ||
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| // Create deployment | ||
| _, err := c.DatabaseV1alpha().ArangoDeployments(ns).Create(depl) | ||
| if err != nil { | ||
| t.Fatalf("Create deployment failed: %v", err) | ||
| } | ||
| // Prepare cleanup | ||
| defer removeDeployment(c, depl.GetName(), ns) | ||
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| // Wait for deployment to be ready | ||
| apiObject, err := waitUntilDeployment(c, depl.GetName(), ns, deploymentIsReady()) | ||
| if err != nil { | ||
| t.Fatalf("Deployment not running in time: %v", err) | ||
| } | ||
|
|
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| // Create a database client | ||
| ctx := context.Background() | ||
| client := mustNewArangodDatabaseClient(ctx, kubecli, apiObject, t, useVst) | ||
|
|
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| // Wait for cluster to be available | ||
| if err := waitUntilVersionUp(client, nil); err != nil { | ||
| t.Fatalf("Cluster not running returning version in time: %v", err) | ||
| } | ||
|
|
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| // Create data set | ||
| collectionData := map[string][]interface{}{ | ||
| "books": []interface{}{ | ||
| Book{Title: "Book 01"}, | ||
| Book{Title: "Book 02"}, | ||
| Book{Title: "Book 03"}, | ||
| Book{Title: "Book 04"}, | ||
| Book{Title: "Book 05"}, | ||
| Book{Title: "Book 06"}, | ||
| Book{Title: "Book 07"}, | ||
| Book{Title: "Book 08"}, | ||
| Book{Title: "Book 09"}, | ||
| Book{Title: "Book 10"}, | ||
| Book{Title: "Book 11"}, | ||
| Book{Title: "Book 12"}, | ||
| Book{Title: "Book 13"}, | ||
| Book{Title: "Book 14"}, | ||
| Book{Title: "Book 15"}, | ||
| Book{Title: "Book 16"}, | ||
| Book{Title: "Book 17"}, | ||
| Book{Title: "Book 18"}, | ||
| Book{Title: "Book 19"}, | ||
| Book{Title: "Book 20"}, | ||
| }, | ||
| "users": []interface{}{ | ||
| UserDoc{Name: "John", Age: 13}, | ||
| UserDoc{Name: "Jake", Age: 25}, | ||
| UserDoc{Name: "Clair", Age: 12}, | ||
| UserDoc{Name: "Johnny", Age: 42}, | ||
| UserDoc{Name: "Blair", Age: 67}, | ||
| UserDoc{Name: "Zz", Age: 12}, | ||
| }, | ||
| } | ||
| for colName, colDocs := range collectionData { | ||
| col := ensureCollection(ctx, db, colName, nil, t) | ||
| if _, _, err := col.CreateDocuments(ctx, colDocs); err != nil { | ||
| t.Fatalf("Expected success, got %s", describe(err)) | ||
| } | ||
| } | ||
|
|
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| // Setup tests | ||
| tests := []queryTest{ | ||
| queryTest{ | ||
| Query: "FOR d IN books SORT d.Title RETURN d", | ||
| ExpectSuccess: true, | ||
| ExpectedDocuments: collectionData["books"], | ||
| DocumentType: reflect.TypeOf(Book{}), | ||
| }, | ||
| queryTest{ | ||
| Query: "FOR d IN books FILTER d.Title==@title SORT d.Title RETURN d", | ||
| BindVars: map[string]interface{}{"title": "Book 02"}, | ||
| ExpectSuccess: true, | ||
| ExpectedDocuments: []interface{}{collectionData["books"][1]}, | ||
| DocumentType: reflect.TypeOf(Book{}), | ||
| }, | ||
| queryTest{ | ||
| Query: "FOR d IN books FILTER d.Title==@title SORT d.Title RETURN d", | ||
| BindVars: map[string]interface{}{"somethingelse": "Book 02"}, | ||
| ExpectSuccess: false, // Unknown `@title` | ||
| }, | ||
| queryTest{ | ||
| Query: "FOR u IN users FILTER u.age>100 SORT u.name RETURN u", | ||
| ExpectSuccess: true, | ||
| ExpectedDocuments: []interface{}{}, | ||
| DocumentType: reflect.TypeOf(UserDoc{}), | ||
| }, | ||
| queryTest{ | ||
| Query: "FOR u IN users FILTER u.age<@maxAge SORT u.name RETURN u", | ||
| BindVars: map[string]interface{}{"maxAge": 20}, | ||
| ExpectSuccess: true, | ||
| ExpectedDocuments: []interface{}{collectionData["users"][2], collectionData["users"][0], collectionData["users"][5]}, | ||
| DocumentType: reflect.TypeOf(UserDoc{}), | ||
| }, | ||
| queryTest{ | ||
| Query: "FOR u IN users FILTER u.age<@maxAge SORT u.name RETURN u", | ||
| BindVars: map[string]interface{}{"maxage": 20}, | ||
| ExpectSuccess: false, // `@maxage` versus `@maxAge` | ||
| }, | ||
| queryTest{ | ||
| Query: "FOR u IN users SORT u.age RETURN u.age", | ||
| ExpectedDocuments: []interface{}{12, 12, 13, 25, 42, 67}, | ||
| DocumentType: reflect.TypeOf(12), | ||
| ExpectSuccess: true, | ||
| }, | ||
| queryTest{ | ||
| Query: "FOR p IN users COLLECT a = p.age WITH COUNT INTO c SORT a RETURN [a, c]", | ||
| ExpectedDocuments: []interface{}{[]int{12, 2}, []int{13, 1}, []int{25, 1}, []int{42, 1}, []int{67, 1}}, | ||
| DocumentType: reflect.TypeOf([]int{}), | ||
| ExpectSuccess: true, | ||
| }, | ||
| queryTest{ | ||
| Query: "FOR u IN users SORT u.name RETURN u.name", | ||
| ExpectedDocuments: []interface{}{"Blair", "Clair", "Jake", "John", "Johnny", "Zz"}, | ||
| DocumentType: reflect.TypeOf("foo"), | ||
| ExpectSuccess: true, | ||
| }, | ||
| } | ||
|
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| // Setup context alternatives | ||
| contexts := []queryTestContext{ | ||
| queryTestContext{driver.WithUseVST(nil, true), false}, | ||
| queryTestContext{driver.WithUseVST(context.Background(), true), false}, | ||
| queryTestContext{driver.WithUseVST(driver.WithQueryCount(nil), true), true}, | ||
| queryTestContext{driver.WithUseVST(driver.WithQueryCount(nil, true), true), true}, | ||
| queryTestContext{driver.WithUseVST(driver.WithQueryCount(nil, false), true), false}, | ||
| queryTestContext{driver.WithUseVST(driver.WithQueryBatchSize(nil, 1), true), false}, | ||
| queryTestContext{driver.WithUseVST(driver.WithQueryCache(nil), true), false}, | ||
| queryTestContext{driver.WithUseVST(driver.WithQueryCache(nil, true), true), false}, | ||
| queryTestContext{driver.WithUseVST(driver.WithQueryCache(nil, false), true), false}, | ||
| queryTestContext{driver.WithUseVST(driver.WithQueryMemoryLimit(nil, 60000), true), false}, | ||
| queryTestContext{driver.WithUseVST(driver.WithQueryTTL(nil, time.Minute), true), false}, | ||
| queryTestContext{driver.WithUseVST(driver.WithQueryBatchSize(driver.WithQueryCount(nil), 1), true), true}, | ||
| queryTestContext{driver.WithUseVST(driver.WithQueryCache(driver.WithQueryCount(driver.WithQueryBatchSize(nil, 2))), true), true}, | ||
| } | ||
|
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| // Run tests for every context alternative | ||
| for _, qctx := range contexts { | ||
| ctx := qctx.Context | ||
| for i, test := range tests { | ||
| cursor, err := db.Query(ctx, test.Query, test.BindVars) | ||
| if err == nil { | ||
| // Close upon exit of the function | ||
| defer cursor.Close() | ||
| } | ||
| if test.ExpectSuccess { | ||
|
There was a problem hiding this comment. This entire file needs |
||
| if err != nil { | ||
| t.Errorf("Expected success in query %d (%s), got '%s'", i, test.Query, describe(err)) | ||
| continue | ||
| } | ||
| count := cursor.Count() | ||
| if qctx.ExpectCount { | ||
| if count != int64(len(test.ExpectedDocuments)) { | ||
| t.Errorf("Expected count of %d, got %d in query %d (%s)", len(test.ExpectedDocuments), count, i, test.Query) | ||
| } | ||
| } else { | ||
| if count != 0 { | ||
| t.Errorf("Expected count of 0, got %d in query %d (%s)", count, i, test.Query) | ||
| } | ||
| } | ||
| var result []interface{} | ||
| for { | ||
| hasMore := cursor.HasMore() | ||
| doc := reflect.New(test.DocumentType) | ||
| if _, err := cursor.ReadDocument(ctx, doc.Interface()); driver.IsNoMoreDocuments(err) { | ||
| if hasMore { | ||
| t.Error("HasMore returned true, but ReadDocument returns a IsNoMoreDocuments error") | ||
| } | ||
| break | ||
| } else if err != nil { | ||
| t.Errorf("Failed to result document %d: %s", len(result), describe(err)) | ||
| } | ||
| if !hasMore { | ||
| t.Error("HasMore returned false, but ReadDocument returns a document") | ||
| } | ||
| result = append(result, doc.Elem().Interface()) | ||
| } | ||
| if len(result) != len(test.ExpectedDocuments) { | ||
| t.Errorf("Expected %d documents, got %d in query %d (%s)", len(test.ExpectedDocuments), len(result), i, test.Query) | ||
| } else { | ||
| for resultIdx, resultDoc := range result { | ||
| if !reflect.DeepEqual(resultDoc, test.ExpectedDocuments[resultIdx]) { | ||
| t.Errorf("Unexpected document in query %d (%s) at index %d: got %+v, expected %+v", i, test.Query, resultIdx, resultDoc, test.ExpectedDocuments[resultIdx]) | ||
| } | ||
| } | ||
| } | ||
| // Close anyway (this tests calling Close more than once) | ||
| if err := cursor.Close(); err != nil { | ||
| t.Errorf("Expected success in Close of cursor from query %d (%s), got '%s'", i, test.Query, describe(err)) | ||
| } | ||
| } else { | ||
| if err == nil { | ||
| t.Errorf("Expected error in query %d (%s), got '%s'", i, test.Query, describe(err)) | ||
| continue | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
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remove WithUseVST