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testInfo.go
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testInfo.go
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// Copyright 2017 Istio Authors
//
// 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 framework
import (
"bufio"
"encoding/json"
"flag"
"fmt"
"io/ioutil"
"os"
"path"
"path/filepath"
"strings"
"time"
"github.com/google/uuid"
"istio.io/istio/pkg/log"
"istio.io/istio/tests/util"
)
var (
testLogsPath = flag.String("test_logs_path", "", "Local path to store logs in")
)
const (
tmpPrefix = "istio.e2e."
idMaxLength = 36
)
// TestInfo gathers Test Information
type testInfo struct {
RunID string
TestID string
TempDir string
}
// Test information
type testStatus struct {
TestID string `json:"test_id"`
Status int `json:"status"`
RunID string `json:"run_id"`
Date time.Time `json:"date"`
}
// NewTestInfo creates a TestInfo given a test id.
func newTestInfo(testID string) (*testInfo, error) {
id, err := generateRunID(testID)
if err != nil {
return nil, err
}
var tmpDir string
// testLogsPath will be used when called by Prow.
// Bootstrap already gather stdout and stdin so we don't need to keep the logs from glog.
if *testLogsPath != "" {
tmpDir = path.Join(*testLogsPath, id)
err = os.MkdirAll(tmpDir, 0777)
} else {
tmpDir, err = ioutil.TempDir(os.TempDir(), tmpPrefix)
}
if err != nil {
return nil, fmt.Errorf("could not create a temporary dir: %v", err)
}
log.Infof("Using temp dir %s", tmpDir)
// Need to setup logging here
return &testInfo{
TestID: testID,
RunID: id,
TempDir: tmpDir,
}, nil
}
func (t testInfo) Setup() error {
return nil
}
// Update sets the test status.
func (t testInfo) Update(r int) error {
return t.createStatusFile(r)
}
func (t testInfo) FetchAndSaveClusterLogs(namespace string, kubeconfig string) error {
return util.FetchAndSaveClusterLogs(namespace, t.TempDir, kubeconfig)
}
func (t testInfo) createStatusFile(r int) error {
log.Info("Creating status file")
ts := testStatus{
Status: r,
Date: time.Now(),
TestID: t.TestID,
RunID: t.RunID,
}
fp := filepath.Join(t.TempDir, fmt.Sprintf("%s.json", t.TestID))
f, err := os.Create(fp)
if err != nil {
log.Errorf("Could not create %s. Error %s", fp, err)
return err
}
w := bufio.NewWriter(f)
e := json.NewEncoder(w)
e.SetIndent("", " ")
if err = e.Encode(ts); err == nil {
if err = w.Flush(); err == nil {
if err = f.Close(); err == nil {
log.Infof("Created Status file %s", fp)
}
}
}
return err
}
func (t testInfo) Teardown() error {
return nil
}
func generateRunID(t string) (string, error) {
u := uuid.New().String()
u = strings.Replace(u, "-", "", -1)
t = strings.Replace(t, "_", "-", -1)
// We want at least 6 characters of uuid padding
padding := idMaxLength - len(t)
if padding < 6 {
return "", fmt.Errorf("test name should be less that %d characters", idMaxLength-6)
}
return fmt.Sprintf("%s-%s", t, u[0:padding]), nil
}