add dynamo

Signed-off-by: Taylor Skinner <tskinn12@gmail.com> add some comments Signed-off-by: Taylor Skinner <tskinn12@gmail.com> update readmes make test runnable Signed-off-by: Taylor Skinner <tskinn12@gmail.com> make test squash! add dynamo add glide.lock format imports gofmt update glide.lock fixes for review golint clean up and reorganize tests add dynamodb integration test remove default region. clean up tests. consistent docs forgot the region is required DRY make validate update readme and commit dependencies
2017-03-08 18:53:34 -07:00 · 2017-03-08 18:53:34 -07:00 · 72e35af39f
commit 72e35af39f
parent 2a61c9049f
25 changed files with 11312 additions and 4 deletions
--- a/provider/dynamodb_test.go
+++ b/provider/dynamodb_test.go
@ -0,0 +1,140 @@
+package provider
+
+import (
+	"errors"
+	"reflect"
+	"testing"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/service/dynamodb"
+	"github.com/aws/aws-sdk-go/service/dynamodb/dynamodbattribute"
+	"github.com/aws/aws-sdk-go/service/dynamodb/dynamodbiface"
+	"github.com/containous/traefik/types"
+)
+
+type mockDynamoDBCLient struct {
+	dynamodbiface.DynamoDBAPI
+	testWithError bool
+}
+
+var backend = &types.Backend{
+	HealthCheck: &types.HealthCheck{
+		URL: "/build",
+	},
+	Servers: map[string]types.Server{
+		"server1": {
+			URL: "http://test.traefik.io",
+		},
+	},
+}
+
+var frontend = &types.Frontend{
+	EntryPoints: []string{"http"},
+	Backend:     "test.traefik.io",
+	Routes: map[string]types.Route{
+		"route1": {
+			Rule: "Host:test.traefik.io",
+		},
+	},
+}
+
+// ScanPages simulates a call to ScanPages (see https://docs.aws.amazon.com/sdk-for-go/api/service/dynamodb/#DynamoDB.ScanPages)
+// by running the fn function twice and returning an item each time.
+func (m *mockDynamoDBCLient) ScanPages(input *dynamodb.ScanInput, fn func(*dynamodb.ScanOutput, bool) bool) error {
+	if m.testWithError {
+		return errors.New("fake error")
+	}
+	attributeBackend, err := dynamodbattribute.Marshal(backend)
+	if err != nil {
+		return err
+	}
+
+	attributeFrontend, err := dynamodbattribute.Marshal(frontend)
+	if err != nil {
+		return err
+	}
+
+	fn(&dynamodb.ScanOutput{
+		Items: []map[string]*dynamodb.AttributeValue{
+			{
+				"id": &dynamodb.AttributeValue{
+					S: aws.String("test.traefik.io_backend"),
+				},
+				"name": &dynamodb.AttributeValue{
+					S: aws.String("test.traefik.io"),
+				},
+				"backend": attributeBackend,
+			},
+		},
+	}, false)
+
+	fn(&dynamodb.ScanOutput{
+		Items: []map[string]*dynamodb.AttributeValue{
+			{
+				"id": &dynamodb.AttributeValue{
+					S: aws.String("test.traefik.io_frontend"),
+				},
+				"name": &dynamodb.AttributeValue{
+					S: aws.String("test.traefik.io"),
+				},
+				"frontend": attributeFrontend,
+			},
+		},
+	}, true)
+	return nil
+}
+
+func TestLoadDynamoConfigSuccessful(t *testing.T) {
+	dbiface := &dynamoClient{
+		db: &mockDynamoDBCLient{
+			testWithError: false,
+		},
+	}
+	provider := DynamoDB{}
+	loadedConfig, err := provider.loadDynamoConfig(dbiface)
+	if err != nil {
+		t.Fatal(err)
+	}
+	expectedConfig := &types.Configuration{
+		Backends: map[string]*types.Backend{
+			"test.traefik.io": backend,
+		},
+		Frontends: map[string]*types.Frontend{
+			"test.traefik.io": frontend,
+		},
+	}
+	if !reflect.DeepEqual(loadedConfig, expectedConfig) {
+		t.Fatalf("Configurations did not match: %v %v", loadedConfig, expectedConfig)
+	}
+}
+
+func TestLoadDynamoConfigFailure(t *testing.T) {
+	dbiface := &dynamoClient{
+		db: &mockDynamoDBCLient{
+			testWithError: true,
+		},
+	}
+	provider := DynamoDB{}
+	_, err := provider.loadDynamoConfig(dbiface)
+	if err == nil {
+		t.Fatal("Expected error")
+	}
+}
+
+func TestCreateClientSuccessful(t *testing.T) {
+	provider := DynamoDB{
+		Region: "us-east-1",
+	}
+	_, err := provider.createClient()
+	if err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestCreateClientFailure(t *testing.T) {
+	provider := DynamoDB{}
+	_, err := provider.createClient()
+	if err == nil {
+		t.Fatal("Expected error")
+	}
+}