github.com/sdbaiguanghe/helm@v2.16.7+incompatible/cmd/helm/release_testing.go (about) 1 /* 2 Copyright The Helm Authors. 3 4 Licensed under the Apache License, Version 2.0 (the "License"); 5 you may not use this file except in compliance with the License. 6 You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10 Unless required by applicable law or agreed to in writing, software 11 distributed under the License is distributed on an "AS IS" BASIS, 12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 See the License for the specific language governing permissions and 14 limitations under the License. 15 */ 16 17 package main 18 19 import ( 20 "fmt" 21 "io" 22 23 "github.com/spf13/cobra" 24 25 "k8s.io/helm/pkg/helm" 26 "k8s.io/helm/pkg/proto/hapi/release" 27 ) 28 29 const releaseTestDesc = ` 30 The test command runs the tests for a release. 31 32 The argument this command takes is the name of a deployed release. 33 The tests to be run are defined in the chart that was installed. 34 ` 35 36 type releaseTestCmd struct { 37 name string 38 out io.Writer 39 client helm.Interface 40 timeout int64 41 cleanup bool 42 parallel bool 43 maxParallel uint32 44 logs bool 45 } 46 47 func newReleaseTestCmd(c helm.Interface, out io.Writer) *cobra.Command { 48 rlsTest := &releaseTestCmd{ 49 out: out, 50 client: c, 51 } 52 53 cmd := &cobra.Command{ 54 Use: "test [RELEASE]", 55 Short: "Test a release", 56 Long: releaseTestDesc, 57 PreRunE: func(_ *cobra.Command, _ []string) error { return setupConnection() }, 58 RunE: func(cmd *cobra.Command, args []string) error { 59 if err := checkArgsLength(len(args), "release name"); err != nil { 60 return err 61 } 62 63 rlsTest.name = args[0] 64 rlsTest.client = ensureHelmClient(rlsTest.client) 65 return rlsTest.run() 66 }, 67 } 68 69 f := cmd.Flags() 70 settings.AddFlagsTLS(f) 71 f.Int64Var(&rlsTest.timeout, "timeout", 300, "Time in seconds to wait for any individual Kubernetes operation (like Jobs for hooks)") 72 f.BoolVar(&rlsTest.cleanup, "cleanup", false, "Delete test pods upon completion") 73 f.BoolVar(&rlsTest.parallel, "parallel", false, "Run test pods in parallel") 74 f.Uint32Var(&rlsTest.maxParallel, "max", 20, "Maximum number of test pods to run in parallel") 75 f.BoolVar(&rlsTest.logs, "logs", false, "Dump the logs from test pods (this runs after all tests are complete, but before any cleanup") 76 77 // set defaults from environment 78 settings.InitTLS(f) 79 80 return cmd 81 } 82 83 func (t *releaseTestCmd) run() (err error) { 84 c, errc := t.client.RunReleaseTest( 85 t.name, 86 helm.ReleaseTestTimeout(t.timeout), 87 helm.ReleaseTestCleanup(t.cleanup), 88 helm.ReleaseTestParallel(t.parallel), 89 helm.ReleaseTestMaxParallel(t.maxParallel), 90 helm.ReleaseTestLogs(t.logs), 91 ) 92 testErr := &testErr{} 93 94 for { 95 select { 96 case err := <-errc: 97 if prettyError(err) == nil && testErr.failed > 0 { 98 return testErr.Error() 99 } 100 return prettyError(err) 101 case res, ok := <-c: 102 if !ok { 103 break 104 } 105 106 if res.Status == release.TestRun_FAILURE { 107 testErr.failed++ 108 } 109 110 fmt.Fprintf(t.out, res.Msg+"\n") 111 112 } 113 } 114 115 } 116 117 type testErr struct { 118 failed int 119 } 120 121 func (err *testErr) Error() error { 122 return fmt.Errorf("%v test(s) failed", err.failed) 123 }