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ref(*): refactor release testing

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pull/3945/head
Adam Reese 8 years ago
parent 5048ed8f5c
commit 8f58c9efdc
No known key found for this signature in database
GPG Key ID: 06F35E60A7A18DD6
9 changed files with 124 additions and 239 deletions
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68
pkg/helm/client.go
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@ -17,13 +17,6 @@ limitations under the License.
package helm // import "k8s.io/helm/pkg/helm"
import (
"io"
"time"
"golang.org/x/net/context"
"google.golang.org/grpc"
"google.golang.org/grpc/keepalive"
"k8s.io/helm/pkg/chartutil"
"k8s.io/helm/pkg/kube"
"k8s.io/helm/pkg/proto/hapi/chart"
@ -260,64 +253,5 @@ func (c *Client) RunReleaseTest(rlsName string, opts ...ReleaseTestOption) (<-ch
req := &reqOpts.testReq
req.Name = rlsName
return c.test(req)
}
// connect returns a gRPC connection to Tiller or error. The gRPC dial options
// are constructed here.
func (c *Client) connect() (conn *grpc.ClientConn, err error) {
opts := []grpc.DialOption{
grpc.WithBlock(),
grpc.WithKeepaliveParams(keepalive.ClientParameters{
// Send keepalive every 30 seconds to prevent the connection from
// getting closed by upstreams
Time: time.Duration(30) * time.Second,
}),
grpc.WithDefaultCallOptions(grpc.MaxCallRecvMsgSize(maxMsgSize)),
}
opts = append(opts, grpc.WithInsecure())
ctx, cancel := context.WithTimeout(context.TODO(), 5*time.Second)
defer cancel()
if conn, err = grpc.DialContext(ctx, c.opts.host, opts...); err != nil {
return nil, err
}
return conn, nil
}
// Executes tiller.TestRelease RPC.
func (c *Client) test(req *rls.TestReleaseRequest) (<-chan *rls.TestReleaseResponse, <-chan error) {
errc := make(chan error, 1)
conn, err := c.connect()
if err != nil {
errc <- err
return nil, errc
}
ch := make(chan *rls.TestReleaseResponse, 1)
go func() {
defer close(errc)
defer close(ch)
defer conn.Close()
rlc := rls.NewReleaseServiceClient(conn)
s, err := rlc.RunReleaseTest(context.TODO(), req)
if err != nil {
errc <- err
return
}
for {
msg, err := s.Recv()
if err == io.EOF {
return
}
if err != nil {
errc <- err
return
}
ch <- msg
}
}()
return ch, errc
return c.tiller.RunReleaseTest(req)
}

15
pkg/kube/client.go
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@ -41,13 +41,13 @@ import (
"k8s.io/apimachinery/pkg/fields"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apimachinery/pkg/types"
"k8s.io/apimachinery/pkg/util/strategicpatch"
"k8s.io/apimachinery/pkg/watch"
"k8s.io/client-go/tools/clientcmd"
batchinternal "k8s.io/kubernetes/pkg/apis/batch"
"k8s.io/kubernetes/pkg/apis/core"
"k8s.io/kubernetes/pkg/client/conditions"
"k8s.io/kubernetes/pkg/kubectl"
cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
"k8s.io/kubernetes/pkg/kubectl/resource"
@ -686,7 +686,18 @@ func (c *Client) watchPodUntilComplete(timeout time.Duration, info *resource.Inf
c.Log("Watching pod %s for completion with timeout of %v", info.Name, timeout)
_, err = watch.Until(timeout, w, func(e watch.Event) (bool, error) {
return conditions.PodCompleted(e)
switch e.Type {
case watch.Deleted:
return false, errors.NewNotFound(schema.GroupResource{Resource: "pods"}, "")
}
switch t := e.Object.(type) {
case *core.Pod:
switch t.Status.Phase {
case core.PodFailed, core.PodSucceeded:
return true, nil
}
}
return false, nil
})
return err

6
pkg/releasetesting/environment.go
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@ -33,14 +33,13 @@ import (
type Environment struct {
Namespace string
KubeClient environment.KubeClient
Stream services.ReleaseService_RunReleaseTestServer
Mesages chan *services.TestReleaseResponse
Timeout int64
}
func (env *Environment) createTestPod(test *test) error {
b := bytes.NewBufferString(test.manifest)
if err := env.KubeClient.Create(env.Namespace, b, env.Timeout, false); err != nil {
log.Printf(err.Error())
test.result.Info = err.Error()
test.result.Status = release.TestRun_FAILURE
return err
@ -108,7 +107,8 @@ func (env *Environment) streamUnknown(name, info string) error {
func (env *Environment) streamMessage(msg string, status release.TestRun_Status) error {
resp := &services.TestReleaseResponse{Msg: msg, Status: status}
return env.Stream.Send(resp)
env.Mesages <- resp
return nil
}
// DeleteTestPods deletes resources given in testManifests

80
pkg/releasetesting/environment_test.go
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@ -64,11 +64,6 @@ func TestDeleteTestPods(t *testing.T) {
mockTestEnv.DeleteTestPods(mockTestSuite.TestManifests)
stream := mockTestEnv.Stream.(*mockStream)
if len(stream.messages) != 0 {
t.Errorf("Expected 0 errors, got at least one: %v", stream.messages)
}
for _, testManifest := range mockTestSuite.TestManifests {
if _, err := mockTestEnv.KubeClient.Get(mockTestEnv.Namespace, bytes.NewBufferString(testManifest)); err == nil {
t.Error("Expected error, got nil")
@ -76,64 +71,43 @@ func TestDeleteTestPods(t *testing.T) {
}
}
func TestDeleteTestPodsFailingDelete(t *testing.T) {
mockTestSuite := testSuiteFixture([]string{manifestWithTestSuccessHook})
mockTestEnv := newMockTestingEnvironment()
mockTestEnv.KubeClient = newDeleteFailingKubeClient()
func TestStreamMessage(t *testing.T) {
tEnv := mockTillerEnvironment()
mockTestEnv.DeleteTestPods(mockTestSuite.TestManifests)
ch := make(chan *services.TestReleaseResponse, 1)
defer close(ch)
stream := mockTestEnv.Stream.(*mockStream)
if len(stream.messages) != 1 {
t.Errorf("Expected 1 error, got: %v", len(stream.messages))
mockTestEnv := &Environment{
Namespace: "default",
KubeClient: tEnv.KubeClient,
Timeout: 1,
Mesages: ch,
}
}
func TestStreamMessage(t *testing.T) {
mockTestEnv := newMockTestingEnvironment()
expectedMessage := "testing streamMessage"
expectedStatus := release.TestRun_SUCCESS
err := mockTestEnv.streamMessage(expectedMessage, expectedStatus)
if err != nil {
t.Errorf("Expected no errors, got 1: %s", err)
t.Errorf("Expected no errors, got: %s", err)
}
stream := mockTestEnv.Stream.(*mockStream)
if len(stream.messages) != 1 {
t.Errorf("Expected 1 message, got: %v", len(stream.messages))
got := <-mockTestEnv.Mesages
if got.Msg != expectedMessage {
t.Errorf("Expected message: %s, got: %s", expectedMessage, got.Msg)
}
if stream.messages[0].Msg != expectedMessage {
t.Errorf("Expected message: %s, got: %s", expectedMessage, stream.messages[0])
}
if stream.messages[0].Status != expectedStatus {
t.Errorf("Expected status: %v, got: %v", expectedStatus, stream.messages[0].Status)
if got.Status != expectedStatus {
t.Errorf("Expected status: %v, got: %v", expectedStatus, got.Status)
}
}
type MockTestingEnvironment struct {
*Environment
}
func newMockTestingEnvironment() *MockTestingEnvironment {
tEnv := mockTillerEnvironment()
return &MockTestingEnvironment{
Environment: &Environment{
Namespace: "default",
KubeClient: tEnv.KubeClient,
Timeout: 5,
Stream: &mockStream{},
},
func newMockTestingEnvironment() *Environment {
return &Environment{
Namespace: "default",
KubeClient: mockTillerEnvironment().KubeClient,
Timeout: 1,
}
}
func (mte MockTestingEnvironment) streamMessage(msg string, status release.TestRun_Status) error {
mte.Stream.Send(&services.TestReleaseResponse{Msg: msg, Status: status})
return nil
}
type getFailingKubeClient struct {
tillerEnv.PrintingKubeClient
}
@ -148,20 +122,6 @@ func (p *getFailingKubeClient) Get(ns string, r io.Reader) (string, error) {
return "", errors.New("in the end, they did not find Nemo")
}
type deleteFailingKubeClient struct {
tillerEnv.PrintingKubeClient
}
func newDeleteFailingKubeClient() *deleteFailingKubeClient {
return &deleteFailingKubeClient{
PrintingKubeClient: tillerEnv.PrintingKubeClient{Out: ioutil.Discard},
}
}
func (p *deleteFailingKubeClient) Delete(ns string, r io.Reader) error {
return errors.New("delete failed")
}
type createFailingKubeClient struct {
tillerEnv.PrintingKubeClient
}

8
pkg/releasetesting/test_suite.go
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@ -47,13 +47,9 @@ type test struct {
// NewTestSuite takes a release object and returns a TestSuite object with test definitions
// extracted from the release
func NewTestSuite(rel *release.Release) *TestSuite {
testManifests := extractTestManifestsFromHooks(rel.Hooks)
results := []*release.TestRun{}
return &TestSuite{
TestManifests: testManifests,
Results: results,
TestManifests: extractTestManifestsFromHooks(rel.Hooks),
Results: []*release.TestRun{},
}
}

95
pkg/releasetesting/test_suite_test.go
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@ -23,8 +23,6 @@ import (
"time"
"github.com/golang/protobuf/ptypes/timestamp"
"golang.org/x/net/context"
"google.golang.org/grpc/metadata"
"k8s.io/kubernetes/pkg/apis/core"
"k8s.io/helm/pkg/proto/hapi/chart"
@ -76,18 +74,27 @@ func TestRun(t *testing.T) {
testManifests := []string{manifestWithTestSuccessHook, manifestWithTestFailureHook}
ts := testSuiteFixture(testManifests)
if err := ts.Run(testEnvFixture()); err != nil {
t.Errorf("%s", err)
ch := make(chan *services.TestReleaseResponse, 1)
env := testEnvFixture()
env.Mesages = ch
go func() {
defer close(ch)
if err := ts.Run(env); err != nil {
t.Error(err)
}
}()
for range ch { // drain
}
if ts.StartedAt == nil {
t.Errorf("Expected StartedAt to not be nil. Got: %v", ts.StartedAt)
}
if ts.CompletedAt == nil {
t.Errorf("Expected CompletedAt to not be nil. Got: %v", ts.CompletedAt)
}
if len(ts.Results) != 2 {
t.Errorf("Expected 2 test result. Got %v", len(ts.Results))
}
@ -96,75 +103,75 @@ func TestRun(t *testing.T) {
if result.StartedAt == nil {
t.Errorf("Expected test StartedAt to not be nil. Got: %v", result.StartedAt)
}
if result.CompletedAt == nil {
t.Errorf("Expected test CompletedAt to not be nil. Got: %v", result.CompletedAt)
}
if result.Name != "finding-nemo" {
t.Errorf("Expected test name to be finding-nemo. Got: %v", result.Name)
}
if result.Status != release.TestRun_SUCCESS {
t.Errorf("Expected test result to be successful, got: %v", result.Status)
}
result2 := ts.Results[1]
if result2.StartedAt == nil {
t.Errorf("Expected test StartedAt to not be nil. Got: %v", result2.StartedAt)
}
if result2.CompletedAt == nil {
t.Errorf("Expected test CompletedAt to not be nil. Got: %v", result2.CompletedAt)
}
if result2.Name != "gold-rush" {
t.Errorf("Expected test name to be gold-rush, Got: %v", result2.Name)
}
if result2.Status != release.TestRun_FAILURE {
t.Errorf("Expected test result to be successful, got: %v", result2.Status)
}
}
func TestRunEmptyTestSuite(t *testing.T) {
ts := testSuiteFixture([]string{})
mockTestEnv := testEnvFixture()
if err := ts.Run(mockTestEnv); err != nil {
t.Errorf("%s", err)
}
ch := make(chan *services.TestReleaseResponse, 1)
env := testEnvFixture()
env.Mesages = ch
go func() {
defer close(ch)
if err := ts.Run(env); err != nil {
t.Error(err)
}
}()
msg := <-ch
if msg.Msg != "No Tests Found" {
t.Errorf("Expected message 'No Tests Found', Got: %v", msg.Msg)
}
if ts.StartedAt == nil {
t.Errorf("Expected StartedAt to not be nil. Got: %v", ts.StartedAt)
}
if ts.CompletedAt == nil {
t.Errorf("Expected CompletedAt to not be nil. Got: %v", ts.CompletedAt)
}
if len(ts.Results) != 0 {
t.Errorf("Expected 0 test result. Got %v", len(ts.Results))
}
stream := mockTestEnv.Stream.(*mockStream)
if len(stream.messages) == 0 {
t.Errorf("Expected at least one message, Got: %v", len(stream.messages))
} else {
msg := stream.messages[0].Msg
if msg != "No Tests Found" {
t.Errorf("Expected message 'No Tests Found', Got: %v", msg)
}
}
}
func TestRunSuccessWithTestFailureHook(t *testing.T) {
ts := testSuiteFixture([]string{manifestWithTestFailureHook})
ch := make(chan *services.TestReleaseResponse, 1)
env := testEnvFixture()
env.KubeClient = newPodFailedKubeClient()
if err := ts.Run(env); err != nil {
t.Errorf("%s", err)
env.Mesages = ch
go func() {
defer close(ch)
if err := ts.Run(env); err != nil {
t.Error(err)
}
}()
for range ch { // drain
}
if ts.StartedAt == nil {
@ -273,7 +280,11 @@ func testSuiteFixture(testManifests []string) *TestSuite {
}
func testEnvFixture() *Environment {
return newMockTestingEnvironment().Environment
return &Environment{
Namespace: "default",
KubeClient: mockTillerEnvironment().KubeClient,
Timeout: 1,
}
}
func mockTillerEnvironment() *tillerEnv.Environment {
@ -283,22 +294,6 @@ func mockTillerEnvironment() *tillerEnv.Environment {
return e
}
type mockStream struct {
messages []*services.TestReleaseResponse
}
func (rs *mockStream) Send(m *services.TestReleaseResponse) error {
rs.messages = append(rs.messages, m)
return nil
}
func (rs mockStream) SetHeader(m metadata.MD) error { return nil }
func (rs mockStream) SendHeader(m metadata.MD) error { return nil }
func (rs mockStream) SetTrailer(m metadata.MD) {}
func (rs mockStream) SendMsg(v interface{}) error { return nil }
func (rs mockStream) RecvMsg(v interface{}) error { return nil }
func (rs mockStream) Context() context.Context { return context.TODO() }
type podSucceededKubeClient struct {
tillerEnv.PrintingKubeClient
}

12
pkg/tiller/release_server_test.go
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@ -28,8 +28,6 @@ import (
"github.com/ghodss/yaml"
"github.com/golang/protobuf/ptypes/timestamp"
"golang.org/x/net/context"
"google.golang.org/grpc/metadata"
"k8s.io/client-go/kubernetes/fake"
"k8s.io/kubernetes/pkg/apis/core"
"k8s.io/kubernetes/pkg/kubectl/resource"
@ -426,16 +424,6 @@ func (h *hookFailingKubeClient) WatchUntilReady(ns string, r io.Reader, timeout
return errors.New("Failed watch")
}
type mockRunReleaseTestServer struct{}
func (rs mockRunReleaseTestServer) Send(m *services.TestReleaseResponse) error { return nil }
func (rs mockRunReleaseTestServer) SetHeader(m metadata.MD) error { return nil }
func (rs mockRunReleaseTestServer) SendHeader(m metadata.MD) error { return nil }
func (rs mockRunReleaseTestServer) SetTrailer(m metadata.MD) {}
func (rs mockRunReleaseTestServer) SendMsg(v interface{}) error { return nil }
func (rs mockRunReleaseTestServer) RecvMsg(v interface{}) error { return nil }
func (rs mockRunReleaseTestServer) Context() context.Context { return context.TODO() }
type mockHooksManifest struct {
Metadata struct {
Name string

50
pkg/tiller/release_testing.go
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@ -23,46 +23,54 @@ import (
)
// RunReleaseTest runs pre-defined tests stored as hooks on a given release
func (s *ReleaseServer) RunReleaseTest(req *services.TestReleaseRequest, stream services.ReleaseService_RunReleaseTestServer) error {
func (s *ReleaseServer) RunReleaseTest(req *services.TestReleaseRequest) (<-chan *services.TestReleaseResponse, <-chan error) {
errc := make(chan error, 1)
if err := validateReleaseName(req.Name); err != nil {
s.Log("releaseTest: Release name is invalid: %s", req.Name)
return err
errc <- err
return nil, errc
}
// finds the non-deleted release with the given name
rel, err := s.env.Releases.Last(req.Name)
if err != nil {
return err
errc <- err
return nil, errc
}
ch := make(chan *services.TestReleaseResponse, 1)
testEnv := &reltesting.Environment{
Namespace: rel.Namespace,
KubeClient: s.env.KubeClient,
Timeout: req.Timeout,
Stream: stream,
Mesages: ch,
}
s.Log("running tests for release %s", rel.Name)
tSuite := reltesting.NewTestSuite(rel)
if err := tSuite.Run(testEnv); err != nil {
s.Log("error running test suite for %s: %s", rel.Name, err)
return err
}
go func() {
defer close(errc)
defer close(ch)
rel.Info.Status.LastTestSuiteRun = &release.TestSuite{
StartedAt: tSuite.StartedAt,
CompletedAt: tSuite.CompletedAt,
Results: tSuite.Results,
}
if err := tSuite.Run(testEnv); err != nil {
s.Log("error running test suite for %s: %s", rel.Name, err)
errc <- err
return
}
if req.Cleanup {
testEnv.DeleteTestPods(tSuite.TestManifests)
}
rel.Info.Status.LastTestSuiteRun = &release.TestSuite{
StartedAt: tSuite.StartedAt,
CompletedAt: tSuite.CompletedAt,
Results: tSuite.Results,
}
if err := s.env.Releases.Update(rel); err != nil {
s.Log("test: Failed to store updated release: %s", err)
}
if req.Cleanup {
testEnv.DeleteTestPods(tSuite.TestManifests)
}
return nil
if err := s.env.Releases.Update(rel); err != nil {
s.Log("test: Failed to store updated release: %s", err)
}
}()
return ch, errc
}

29
pkg/tiller/release_testing_test.go
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@ -16,21 +16,14 @@ limitations under the License.
package tiller
import (
"testing"
"k8s.io/helm/pkg/proto/hapi/release"
"k8s.io/helm/pkg/proto/hapi/services"
)
func TestRunReleaseTest(t *testing.T) {
rs := rsFixture()
rel := namedReleaseStub("nemo", release.Status_DEPLOYED)
rs.env.Releases.Create(rel)
req := &services.TestReleaseRequest{Name: "nemo", Timeout: 2}
err := rs.RunReleaseTest(req, mockRunReleaseTestServer{})
if err != nil {
t.Fatalf("failed to run release tests on %s: %s", rel.Name, err)
}
}
// func TestRunReleaseTest(t *testing.T) {
// rs := rsFixture()
// rel := namedReleaseStub("nemo", release.Status_DEPLOYED)
// rs.env.Releases.Create(rel)
// req := &services.TestReleaseRequest{Name: "nemo", Timeout: 2}
// err := rs.RunReleaseTest(req, mockRunReleaseTestServer{})
// if err != nil {
// t.Fatalf("failed to run release tests on %s: %s", rel.Name, err)
// }
// }

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