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driver.go
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driver.go
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/*
Copyright 2014 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 e2e
import (
"math/rand"
"time"
"github.com/GoogleCloudPlatform/kubernetes/pkg/client"
"github.com/GoogleCloudPlatform/kubernetes/pkg/util"
"github.com/golang/glog"
)
type testSpec struct {
// The test to run
test func(c *client.Client) bool
// The human readable name of this test
name string
}
type testInfo struct {
passed bool
spec testSpec
}
// Output a summary in the TAP (test anything protocol) format for automated processing.
// See http://testanything.org/ for more info
func outputTAPSummary(infoList []testInfo) {
glog.Infof("1..%d", len(infoList))
for i, info := range infoList {
if info.passed {
glog.Infof("ok %d - %s", i+1, info.spec.name)
} else {
glog.Infof("not ok %d - %s", i+1, info.spec.name)
}
}
}
// Fisher-Yates shuffle using the given RNG r
func shuffleTests(tests []testSpec, r *rand.Rand) {
for i := len(tests) - 1; i > 0; i-- {
j := r.Intn(i + 1)
tests[i], tests[j] = tests[j], tests[i]
}
}
// Run each Go end-to-end-test. This function assumes the
// creation of a test cluster.
func RunE2ETests(authConfig, certDir, host, repoRoot, provider string, orderseed int64, times int, testList []string) {
testContext = testContextType{authConfig, certDir, host, repoRoot, provider}
util.ReallyCrash = true
util.InitLogs()
defer util.FlushLogs()
// TODO: Associate a timeout with each test individually.
go func() {
defer util.FlushLogs()
time.Sleep(10 * time.Minute)
glog.Fatalf("This test has timed out. Cleanup not guaranteed.")
}()
c := loadClientOrDie()
tests := []testSpec{
{TestKubernetesROService, "TestKubernetesROService"},
{TestKubeletSendsEvent, "TestKubeletSendsEvent"},
{TestImportantURLs, "TestImportantURLs"},
{TestPodUpdate, "TestPodUpdate"},
{TestNetwork, "TestNetwork"},
{TestClusterDNS, "TestClusterDNS"},
{TestPodHasServiceEnvVars, "TestPodHasServiceEnvVars"},
{TestBasic, "TestBasic"},
{TestPrivate, "TestPrivate"},
}
// Check testList for non-existent tests and populate a StringSet with tests to run.
validTestNames := util.NewStringSet()
for _, test := range tests {
validTestNames.Insert(test.name)
}
runTestNames := util.NewStringSet()
for _, testName := range testList {
if validTestNames.Has(testName) {
runTestNames.Insert(testName)
} else {
glog.Warningf("Requested test %s does not exist", testName)
}
}
// if testList was specified, filter down now before we expand and shuffle
if len(testList) > 0 {
newTests := make([]testSpec, 0)
for i, test := range tests {
// Check if this test is supposed to run, either if listed explicitly in
// a --test flag or if no --test flags were supplied.
if !runTestNames.Has(test.name) {
glog.Infof("Skipping test %d %s", i+1, test.name)
continue
}
newTests = append(newTests, test)
}
tests = newTests
}
if times != 1 {
newTests := make([]testSpec, 0, times*len(tests))
for i := 0; i < times; i++ {
newTests = append(newTests, tests...)
}
tests = newTests
}
if orderseed == 0 {
// Use low order bits of NanoTime as the default seed. (Using
// all the bits makes for a long, very similar looking seed
// between runs.)
orderseed = time.Now().UnixNano() & (1<<32 - 1)
}
shuffleTests(tests, rand.New(rand.NewSource(orderseed)))
glog.Infof("Tests shuffled with orderseed %#x\n", orderseed)
info := []testInfo{}
passed := true
for i, test := range tests {
glog.Infof("Running test %d %s", i+1, test.name)
testPassed := test.test(c)
if !testPassed {
glog.Infof(" test %d failed", i+1)
passed = false
} else {
glog.Infof(" test %d passed", i+1)
}
// TODO: clean up objects created during a test after the test, so cases
// are independent.
info = append(info, testInfo{testPassed, test})
}
outputTAPSummary(info)
if !passed {
glog.Fatalf("At least one test failed")
} else {
glog.Infof("All tests pass")
}
}