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step_create_instances_test.go
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step_create_instances_test.go
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// Copyright 2017 Google Inc. All Rights Reserved.
//
// 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.
package daisy
import (
"context"
"errors"
"testing"
"time"
daisyCompute "github.com/GoogleCloudPlatform/compute-image-tools/daisy/compute"
"github.com/stretchr/testify/assert"
computeBeta "google.golang.org/api/compute/v0.beta"
"google.golang.org/api/compute/v1"
)
func TestLogSerialOutput(t *testing.T) {
ctx := context.Background()
w := testWorkflow()
w.instances.m = map[string]*Resource{
"i1": {RealName: w.genName("i1"), link: "link"},
"i2": {RealName: w.genName("i2"), link: "link"},
"i3": {RealName: w.genName("i3"), link: "link"},
}
w.ComputeClient.(*daisyCompute.TestClient).GetSerialPortOutputFn = func(_, _, n string, _, s int64) (*compute.SerialPortOutput, error) {
if n == "i3" && s == 0 {
return &compute.SerialPortOutput{Contents: "", Next: 1}, nil
}
return nil, errors.New("fail")
}
w.ComputeClient.(*daisyCompute.TestClient).InstanceStoppedFn = func(_, _, n string) (bool, error) {
if n == "i2" {
return false, nil
}
return true, nil
}
w.bucket = "test-bucket"
tests := []struct {
test, wantMessage1, wantMessage2 string
instance *Instance
instanceBeta *InstanceBeta
}{
{
"Error but instance stopped",
"Streaming instance \"i1\" serial port 0 output to https://storage.cloud.google.com/test-bucket/i1-serial-port0.log",
"",
&Instance{Instance: compute.Instance{Name: "i1"}},
&InstanceBeta{Instance: computeBeta.Instance{Name: "i1"}},
},
{
"Error but instance running",
"Streaming instance \"i2\" serial port 0 output to https://storage.cloud.google.com/test-bucket/i2-serial-port0.log",
"Instance \"i2\": error getting serial port: fail",
&Instance{Instance: compute.Instance{Name: "i2"}},
&InstanceBeta{Instance: computeBeta.Instance{Name: "i2"}},
},
{
"Normal flow",
"Streaming instance \"i3\" serial port 0 output to https://storage.cloud.google.com/test-bucket/i3-serial-port0.log",
"",
&Instance{Instance: compute.Instance{Name: "i3"}},
&InstanceBeta{Instance: computeBeta.Instance{Name: "i3"}},
},
{
"Error but instance deleted",
"Streaming instance \"i4\" serial port 0 output to https://storage.cloud.google.com/test-bucket/i4-serial-port0.log",
"",
&Instance{Instance: compute.Instance{Name: "i4"}},
&InstanceBeta{Instance: computeBeta.Instance{Name: "i4"}},
},
}
assertTest := func(ctx context.Context, ii InstanceInterface, ib *InstanceBase, test, wantMessage1, wantMessage2 string) {
mockLogger := &MockLogger{}
w.Logger = mockLogger
s := &Step{name: "foo", w: w}
logSerialOutput(ctx, s, ii, ib, 0, 1*time.Microsecond)
logEntries := mockLogger.getEntries()
gotStep := logEntries[0].StepName
if gotStep != "foo" {
t.Errorf("%s: got: %q, want: %q", test, gotStep, "foo")
}
gotMessage := logEntries[0].Message
if gotMessage != wantMessage1 {
t.Errorf("%s: got: %q, want: %q", test, gotMessage, wantMessage1)
}
if wantMessage2 != "" {
gotMessage := logEntries[1].Message
if gotMessage != wantMessage2 {
t.Errorf("%s: got: %q, want: %q", test, gotMessage, wantMessage2)
}
}
}
for _, tt := range tests {
assertTest(ctx, tt.instance, &tt.instance.InstanceBase, tt.test, tt.wantMessage1, tt.wantMessage2)
}
}
func TestLogSerialOutputStopsAfterTenRetries(t *testing.T) {
testSerialOutput := func(ii InstanceInterface, ib *InstanceBase) {
w := testWorkflow()
callNum := 0
responses := []string{"", "", "hello", "", " go", "", "", "", "", "", "", "", "", "", "", "", "lang"}
nexts := []int64{0, 0, 0, 5, 5, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8}
w.ComputeClient.(*daisyCompute.TestClient).GetSerialPortOutputFn = func(_, _, n string, _, next int64) (*compute.SerialPortOutput, error) {
response := responses[callNum]
assert.Equal(t, nexts[callNum], next)
callNum++
switch response {
case "":
return nil, errors.New("fail")
default:
return &compute.SerialPortOutput{Contents: response, Next: next + int64(len(response))}, nil
}
}
logSerialOutput(context.Background(), &Step{name: "foo", w: w}, ii, ib, 0, 1*time.Microsecond)
logs := w.Logger.ReadSerialPortLogs()
assert.Equal(t, 1, len(logs))
assert.Equal(t, "hello go", logs[0])
}
i := Instance{Instance: compute.Instance{Name: "i1"}}
testSerialOutput(&i, &i.InstanceBase)
iBeta := InstanceBeta{Instance: computeBeta.Instance{Name: "i1Beta"}}
testSerialOutput(&iBeta, &iBeta.InstanceBase)
}
func TestCreateInstancesRun(t *testing.T) {
ctx := context.Background()
var createErr DError
w := testWorkflow()
w.ComputeClient.(*daisyCompute.TestClient).CreateInstanceFn = func(p, z string, i *compute.Instance) error {
i.SelfLink = "insertedLink"
return createErr
}
w.ComputeClient.(*daisyCompute.TestClient).CreateInstanceBetaFn = func(p, z string, i *computeBeta.Instance) error {
i.SelfLink = "insertedLink"
return createErr
}
s := &Step{w: w}
w.Sources = map[string]string{"file": "gs://some/file"}
w.disks.m = map[string]*Resource{"d": {link: "dLink"}}
w.networks.m = map[string]*Resource{"n": {link: "nLink"}}
w.subnetworks.m = map[string]*Resource{"s": {link: "sLink"}}
// Good case: check disk and network links get resolved.
i0 := &Instance{InstanceBase: InstanceBase{Resource: Resource{daisyName: "i0"}}, Instance: compute.Instance{Name: "realI0", MachineType: "foo-type", Disks: []*compute.AttachedDisk{{Source: "d"}}, NetworkInterfaces: []*compute.NetworkInterface{{Network: "n"}}}}
i1 := &Instance{InstanceBase: InstanceBase{Resource: Resource{daisyName: "i1", Project: "foo"}}, Instance: compute.Instance{Name: "realI1", MachineType: "foo-type", Disks: []*compute.AttachedDisk{{Source: "other"}}, Zone: "bar"}}
i2 := &Instance{InstanceBase: InstanceBase{Resource: Resource{daisyName: "i2"}}, Instance: compute.Instance{Name: "realI0", MachineType: "foo-type", Disks: []*compute.AttachedDisk{{Source: "d"}}, NetworkInterfaces: []*compute.NetworkInterface{{Subnetwork: "s"}}}}
i0Beta := &InstanceBeta{InstanceBase: InstanceBase{Resource: Resource{daisyName: "i0"}}, Instance: computeBeta.Instance{Name: "realI0", MachineType: "foo-type", Disks: []*computeBeta.AttachedDisk{{Source: "d"}}, NetworkInterfaces: []*computeBeta.NetworkInterface{{Network: "n"}}}}
i1Beta := &InstanceBeta{InstanceBase: InstanceBase{Resource: Resource{daisyName: "i1", Project: "foo"}}, Instance: computeBeta.Instance{Name: "realI1", MachineType: "foo-type", Disks: []*computeBeta.AttachedDisk{{Source: "other"}}, Zone: "bar"}}
i2Beta := &InstanceBeta{InstanceBase: InstanceBase{Resource: Resource{daisyName: "i2"}}, Instance: computeBeta.Instance{Name: "realI0", MachineType: "foo-type", Disks: []*computeBeta.AttachedDisk{{Source: "d"}}, NetworkInterfaces: []*computeBeta.NetworkInterface{{Subnetwork: "s"}}}}
ci := &CreateInstances{Instances: []*Instance{i0, i1, i2}, InstancesBeta: []*InstanceBeta{i0Beta, i1Beta, i2Beta}}
if err := ci.run(ctx, s); err != nil {
t.Errorf("unexpected error running CreateInstances.run(): %v", err)
}
if i0.Disks[0].Source != w.disks.m["d"].link {
t.Errorf("instance disk link did not resolve properly: want: %q, got: %q", w.disks.m["d0"].link, i0.Disks[0].Source)
}
if i0.NetworkInterfaces[0].Network != w.networks.m["n"].link {
t.Errorf("instance network link did not resolve properly: want: %q, got: %q", w.networks.m["n"].link, i0.NetworkInterfaces[0].Network)
}
if i1.Disks[0].Source != "other" {
t.Errorf("instance disk link did not resolve properly: want: %q, got: %q", "other", i1.Disks[0].Source)
}
if i2.NetworkInterfaces[0].Subnetwork != w.subnetworks.m["s"].link {
t.Errorf("instance network link did not resolve properly: want: %q, got: %q", w.subnetworks.m["s"].link, i2.NetworkInterfaces[0].Network)
}
// Bad case: compute client Instance error.
w.instances.m = map[string]*Resource{}
createErr = Errf("client error")
ci = &CreateInstances{
Instances: []*Instance{
{InstanceBase: InstanceBase{Resource: Resource{daisyName: "i0"}}, Instance: compute.Instance{Name: "realI0", MachineType: "foo-type", Disks: []*compute.AttachedDisk{{Source: "d0"}}}},
},
}
if err := ci.run(ctx, s); err != createErr {
t.Errorf("CreateInstances.run() should have return compute client error: %v != %v", err, createErr)
}
ci = &CreateInstances{
InstancesBeta: []*InstanceBeta{
{InstanceBase: InstanceBase{Resource: Resource{daisyName: "i0"}}, Instance: computeBeta.Instance{Name: "realI0", MachineType: "foo-type", Disks: []*computeBeta.AttachedDisk{{Source: "d0"}}}},
},
}
if err := ci.run(ctx, s); err != createErr {
t.Errorf("CreateInstances.run() should have return compute client error: %v != %v", err, createErr)
}
}