mirror of https://github.com/linkerd/linkerd2.git
360 lines
10 KiB
Go
360 lines
10 KiB
Go
package cmd
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import (
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"bytes"
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"errors"
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"io/ioutil"
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"net/http"
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"testing"
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"github.com/golang/protobuf/ptypes/duration"
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google_protobuf "github.com/golang/protobuf/ptypes/duration"
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"github.com/runconduit/conduit/controller/api/public"
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common "github.com/runconduit/conduit/controller/gen/common"
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pb "github.com/runconduit/conduit/controller/gen/public"
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"github.com/runconduit/conduit/controller/util"
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"github.com/runconduit/conduit/pkg/k8s"
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"google.golang.org/grpc/codes"
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)
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func TestRequestTapFromApi(t *testing.T) {
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t.Run("Should render busy response if everything went well", func(t *testing.T) {
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authority := "localhost"
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targetName := "pod-666"
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resourceType := k8s.KubernetesPods
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scheme := "https"
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method := "GET"
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path := "/some/path"
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sourceIp := "234.234.234.234"
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targetIp := "123.123.123.123"
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mockApiClient := &public.MockConduitApiClient{}
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event1 := createEvent(&common.TapEvent_Http{
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Event: &common.TapEvent_Http_RequestInit_{
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RequestInit: &common.TapEvent_Http_RequestInit{
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Id: &common.TapEvent_Http_StreamId{
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Base: 1,
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},
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Authority: authority,
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Path: path,
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},
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},
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})
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event2 := createEvent(&common.TapEvent_Http{
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Event: &common.TapEvent_Http_ResponseEnd_{
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ResponseEnd: &common.TapEvent_Http_ResponseEnd{
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Id: &common.TapEvent_Http_StreamId{
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Base: 1,
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},
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Eos: &common.Eos{
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End: &common.Eos_GrpcStatusCode{GrpcStatusCode: 666},
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},
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SinceRequestInit: &google_protobuf.Duration{
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Seconds: 10,
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},
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SinceResponseInit: &google_protobuf.Duration{
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Seconds: 100,
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},
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ResponseBytes: 1337,
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},
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},
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})
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mockApiClient.Api_TapClientToReturn = &public.MockApi_TapClient{
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TapEventsToReturn: []common.TapEvent{event1, event2},
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}
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partialReq := &pb.TapRequest{
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MaxRps: 0,
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ToPort: 8080,
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ToIP: targetIp,
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FromPort: 90,
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FromIP: sourceIp,
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Scheme: scheme,
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Method: method,
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Authority: authority,
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Path: path,
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}
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writer := bytes.NewBufferString("")
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err := requestTapFromApi(writer, mockApiClient, targetName, resourceType, partialReq)
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if err != nil {
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t.Fatalf("Unexpected error: %v", err)
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}
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goldenFileBytes, err := ioutil.ReadFile("testdata/tap_busy_output.golden")
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if err != nil {
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t.Fatalf("Unexpected error: %v", err)
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}
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expectedContent := string(goldenFileBytes)
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output := writer.String()
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if expectedContent != output {
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t.Fatalf("Expected function to render:\n%s\bbut got:\n%s", expectedContent, output)
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}
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})
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t.Run("Should render empty response if no events returned", func(t *testing.T) {
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authority := "localhost"
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targetName := "pod-666"
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resourceType := k8s.KubernetesPods
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scheme := "https"
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method := "GET"
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path := "/some/path"
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sourceIp := "234.234.234.234"
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targetIp := "123.123.123.123"
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mockApiClient := &public.MockConduitApiClient{}
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mockApiClient.Api_TapClientToReturn = &public.MockApi_TapClient{
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TapEventsToReturn: []common.TapEvent{},
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}
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partialReq := &pb.TapRequest{
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MaxRps: 0,
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ToPort: 8080,
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ToIP: targetIp,
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FromPort: 90,
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FromIP: sourceIp,
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Scheme: scheme,
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Method: method,
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Authority: authority,
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Path: path,
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}
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writer := bytes.NewBufferString("")
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err := requestTapFromApi(writer, mockApiClient, targetName, resourceType, partialReq)
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if err != nil {
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t.Fatalf("Unexpected error: %v", err)
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}
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goldenFileBytes, err := ioutil.ReadFile("testdata/tap_empty_output.golden")
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if err != nil {
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t.Fatalf("Unexpected error: %v", err)
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}
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expectedContent := string(goldenFileBytes)
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output := writer.String()
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if expectedContent != output {
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t.Fatalf("Expected function to render:\n%s\bbut got:\n%s", expectedContent, output)
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}
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})
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t.Run("Should return error if stream returned error", func(t *testing.T) {
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t.SkipNow()
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authority := "localhost"
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targetName := "pod-666"
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resourceType := k8s.KubernetesPods
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scheme := "https"
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method := "GET"
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path := "/some/path"
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sourceIp := "234.234.234.234"
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targetIp := "123.123.123.123"
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mockApiClient := &public.MockConduitApiClient{}
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mockApiClient.Api_TapClientToReturn = &public.MockApi_TapClient{
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ErrorsToReturn: []error{errors.New("expected")},
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}
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partialReq := &pb.TapRequest{
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MaxRps: 0,
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ToPort: 8080,
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ToIP: targetIp,
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FromPort: 90,
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FromIP: sourceIp,
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Scheme: scheme,
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Method: method,
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Authority: authority,
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Path: path,
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}
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writer := bytes.NewBufferString("")
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err := requestTapFromApi(writer, mockApiClient, targetName, resourceType, partialReq)
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output := writer.String()
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if err == nil {
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t.Fatalf("Expecting error, got nothing but outpus [%s]", output)
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}
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})
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}
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func TestEventToString(t *testing.T) {
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toTapEvent := func(httpEvent *common.TapEvent_Http) *common.TapEvent {
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streamId := &common.TapEvent_Http_StreamId{
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Base: 7,
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Stream: 8,
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}
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switch httpEvent.Event.(type) {
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case *common.TapEvent_Http_RequestInit_:
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httpEvent.GetRequestInit().Id = streamId
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case *common.TapEvent_Http_ResponseInit_:
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httpEvent.GetResponseInit().Id = streamId
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case *common.TapEvent_Http_ResponseEnd_:
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httpEvent.GetResponseEnd().Id = streamId
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}
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return &common.TapEvent{
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Source: &common.TcpAddress{
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Ip: util.IPV4(1, 2, 3, 4),
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Port: 5555,
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},
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Target: &common.TcpAddress{
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Ip: util.IPV4(2, 3, 4, 5),
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Port: 6666,
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},
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Event: &common.TapEvent_Http_{Http: httpEvent},
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}
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}
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t.Run("Converts HTTP request init event to string", func(t *testing.T) {
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event := toTapEvent(&common.TapEvent_Http{
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Event: &common.TapEvent_Http_RequestInit_{
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RequestInit: &common.TapEvent_Http_RequestInit{
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Method: &common.HttpMethod{
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Type: &common.HttpMethod_Registered_{
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Registered: common.HttpMethod_POST,
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},
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},
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Scheme: &common.Scheme{
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Type: &common.Scheme_Registered_{
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Registered: common.Scheme_HTTPS,
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},
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},
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Authority: "hello.default:7777",
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Path: "/hello.v1.HelloService/Hello",
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},
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},
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})
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expectedOutput := "req id=7:8 src=1.2.3.4:5555 dst=2.3.4.5:6666 :method=POST :authority=hello.default:7777 :path=/hello.v1.HelloService/Hello"
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output := renderTapEvent(event)
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if output != expectedOutput {
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t.Fatalf("Expecting command output to be [%s], got [%s]", expectedOutput, output)
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}
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})
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t.Run("Converts HTTP response init event to string", func(t *testing.T) {
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event := toTapEvent(&common.TapEvent_Http{
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Event: &common.TapEvent_Http_ResponseInit_{
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ResponseInit: &common.TapEvent_Http_ResponseInit{
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SinceRequestInit: &duration.Duration{Nanos: 999000},
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HttpStatus: http.StatusOK,
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},
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},
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})
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expectedOutput := "rsp id=7:8 src=1.2.3.4:5555 dst=2.3.4.5:6666 :status=200 latency=999µs"
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output := renderTapEvent(event)
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if output != expectedOutput {
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t.Fatalf("Expecting command output to be [%s], got [%s]", expectedOutput, output)
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}
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})
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t.Run("Converts gRPC response end event to string", func(t *testing.T) {
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event := toTapEvent(&common.TapEvent_Http{
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Event: &common.TapEvent_Http_ResponseEnd_{
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ResponseEnd: &common.TapEvent_Http_ResponseEnd{
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SinceRequestInit: &duration.Duration{Nanos: 999000},
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SinceResponseInit: &duration.Duration{Nanos: 888000},
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ResponseBytes: 111,
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Eos: &common.Eos{
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End: &common.Eos_GrpcStatusCode{GrpcStatusCode: uint32(codes.OK)},
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},
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},
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},
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})
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expectedOutput := "end id=7:8 src=1.2.3.4:5555 dst=2.3.4.5:6666 grpc-status=OK duration=888µs response-length=111B"
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output := renderTapEvent(event)
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if output != expectedOutput {
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t.Fatalf("Expecting command output to be [%s], got [%s]", expectedOutput, output)
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}
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})
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t.Run("Converts HTTP response end event with reset error code to string", func(t *testing.T) {
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event := toTapEvent(&common.TapEvent_Http{
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Event: &common.TapEvent_Http_ResponseEnd_{
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ResponseEnd: &common.TapEvent_Http_ResponseEnd{
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SinceRequestInit: &duration.Duration{Nanos: 999000},
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SinceResponseInit: &duration.Duration{Nanos: 888000},
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ResponseBytes: 111,
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Eos: &common.Eos{
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End: &common.Eos_ResetErrorCode{ResetErrorCode: 123},
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},
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},
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},
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})
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expectedOutput := "end id=7:8 src=1.2.3.4:5555 dst=2.3.4.5:6666 reset-error=123 duration=888µs response-length=111B"
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output := renderTapEvent(event)
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if output != expectedOutput {
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t.Fatalf("Expecting command output to be [%s], got [%s]", expectedOutput, output)
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}
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})
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t.Run("Converts HTTP response end event with empty EOS context string", func(t *testing.T) {
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event := toTapEvent(&common.TapEvent_Http{
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Event: &common.TapEvent_Http_ResponseEnd_{
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ResponseEnd: &common.TapEvent_Http_ResponseEnd{
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SinceRequestInit: &duration.Duration{Nanos: 999000},
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SinceResponseInit: &duration.Duration{Nanos: 888000},
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ResponseBytes: 111,
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Eos: &common.Eos{},
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},
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},
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})
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expectedOutput := "end id=7:8 src=1.2.3.4:5555 dst=2.3.4.5:6666 duration=888µs response-length=111B"
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output := renderTapEvent(event)
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if output != expectedOutput {
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t.Fatalf("Expecting command output to be [%s], got [%s]", expectedOutput, output)
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}
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})
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t.Run("Converts HTTP response end event without EOS context string", func(t *testing.T) {
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event := toTapEvent(&common.TapEvent_Http{
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Event: &common.TapEvent_Http_ResponseEnd_{
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ResponseEnd: &common.TapEvent_Http_ResponseEnd{
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SinceRequestInit: &duration.Duration{Nanos: 999000},
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SinceResponseInit: &duration.Duration{Nanos: 888000},
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ResponseBytes: 111,
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},
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},
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})
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expectedOutput := "end id=7:8 src=1.2.3.4:5555 dst=2.3.4.5:6666 duration=888µs response-length=111B"
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output := renderTapEvent(event)
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if output != expectedOutput {
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t.Fatalf("Expecting command output to be [%s], got [%s]", expectedOutput, output)
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}
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})
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t.Run("Handles unknown event types", func(t *testing.T) {
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event := toTapEvent(&common.TapEvent_Http{})
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expectedOutput := "unknown src=1.2.3.4:5555 dst=2.3.4.5:6666"
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output := renderTapEvent(event)
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if output != expectedOutput {
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t.Fatalf("Expecting command output to be [%s], got [%s]", expectedOutput, output)
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}
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})
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}
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func createEvent(event_http *common.TapEvent_Http) common.TapEvent {
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event := common.TapEvent{
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Source: &common.TcpAddress{
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Ip: &common.IPAddress{
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Ip: &common.IPAddress_Ipv4{
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Ipv4: uint32(1),
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},
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},
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},
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Target: &common.TcpAddress{
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Ip: &common.IPAddress{
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Ip: &common.IPAddress_Ipv4{
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Ipv4: uint32(9),
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},
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},
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},
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Event: &common.TapEvent_Http_{
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Http: event_http,
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},
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}
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return event
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}
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