| // Copyright 2021 Google LLC |
| // |
| // 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 systemd |
| |
| import ( |
| "errors" |
| "fmt" |
| "testing" |
| ) |
| |
| const systemctlCmd = "testdata/systemctl.sh" |
| |
| func TestIsUnitActiveRunning(t *testing.T) { |
| tests := []struct { |
| name string |
| unitName string |
| cmdStdout []byte |
| isActive bool |
| cmdErr error |
| expectActiveRunning bool |
| expectError bool |
| }{ |
| { |
| name: "UnitIsActiveRunning", |
| unitName: "stackdriver-logging.service", |
| cmdStdout: []byte("ActiveState=active\nSubState=running\n"), |
| isActive: true, |
| cmdErr: nil, |
| expectActiveRunning: true, |
| expectError: false, |
| }, |
| { |
| name: "UnitIsActiveNotRunning", |
| unitName: "node-problem-detector.service", |
| cmdStdout: []byte("ActiveState=active\nSubState=starting\n"), |
| isActive: true, |
| cmdErr: nil, |
| expectActiveRunning: true, |
| expectError: false, |
| }, |
| { |
| name: "UnitIsInactiveNotRunning", |
| unitName: "node-problem-detector.service", |
| cmdStdout: []byte("ActiveState=inactive\nSubState=dead\n"), |
| isActive: false, |
| cmdErr: nil, |
| expectActiveRunning: false, |
| expectError: false, |
| }, |
| |
| { |
| name: "UnitIsFailed", |
| unitName: "node-problem-detector.service", |
| cmdStdout: []byte("ActiveState=failed\nSubState=failed\n"), |
| isActive: false, |
| cmdErr: nil, |
| expectActiveRunning: false, |
| expectError: false, |
| }, |
| { |
| name: "UnitIsActivating", |
| unitName: "node-problem-detector.service", |
| cmdStdout: []byte("ActiveState=activating\nSubState=starting\n"), |
| isActive: false, |
| cmdErr: nil, |
| expectActiveRunning: false, |
| expectError: false, |
| }, |
| { |
| name: "NotExistUnit", |
| unitName: "thisisnotaunit.nonunit", |
| cmdStdout: []byte("ActiveState=inactive\nSubState=dead\n"), |
| isActive: false, |
| cmdErr: nil, |
| expectActiveRunning: false, |
| expectError: false, |
| }, |
| { |
| name: "IgnoreOutputWhenCommandFailed", |
| unitName: "node-problem-detector.service", |
| cmdStdout: []byte("ActiveState=active\nSubState=running\n"), |
| isActive: true, |
| cmdErr: errors.New("Some error."), |
| expectActiveRunning: false, |
| expectError: true, |
| }, |
| } |
| for _, test := range tests { |
| t.Run(test.name, func(t *testing.T) { |
| systemdClient := NewSystemdClient(systemctlCmd) |
| unitName := fmt.Sprintf("%s,%t,%v", test.unitName, test.isActive, test.cmdErr) |
| activeRunning, err := systemdClient.IsUnitActiveRunning(unitName) |
| if activeRunning != test.expectActiveRunning { |
| t.Errorf("got ActiveState %v, expect to have ActiveState %v", |
| activeRunning, test.expectActiveRunning) |
| } |
| if err != nil && !test.expectError { |
| t.Errorf("got unexpected error: %v", err) |
| } else if err == nil && test.expectError { |
| t.Error("didn't get expected error") |
| } |
| }) |
| } |
| } |
| |
| func TestStartUnit(t *testing.T) { |
| tests := []struct { |
| name string |
| unitName string |
| cmdErr error |
| expectError bool |
| }{ |
| { |
| name: "StartSuccess", |
| unitName: "stackdriver-logging.service", |
| cmdErr: nil, |
| expectError: false, |
| }, |
| { |
| name: "WontReportFailureWhenServiceFailedToStart", |
| unitName: "failed-to-start.service", |
| cmdErr: nil, |
| expectError: false, |
| }, |
| { |
| name: "UnitIsAlreadyStarted", |
| unitName: "already-started.service", |
| cmdErr: nil, |
| expectError: false, |
| }, |
| { |
| name: "WrongUnitName", |
| unitName: "thisisnotaunit.nonunit", |
| cmdErr: errors.New("exit status 5"), |
| expectError: true, |
| }, |
| { |
| name: "SystemctlError", |
| unitName: "node-problem-detector.service", |
| cmdErr: errors.New("Some error."), |
| expectError: true, |
| }, |
| } |
| for _, test := range tests { |
| t.Run(test.name, func(t *testing.T) { |
| systemdClient := NewSystemdClient(systemctlCmd) |
| unitName := fmt.Sprintf("%v,%v", test.unitName, test.cmdErr) |
| err := systemdClient.StartUnit(unitName) |
| if err != nil && !test.expectError { |
| t.Errorf("got unexpected error: %v", err) |
| } else if err == nil && test.expectError { |
| t.Error("didn't get expected error") |
| } |
| }) |
| } |
| } |
| |
| func TestStopUnit(t *testing.T) { |
| tests := []struct { |
| name string |
| unitName string |
| cmdErr error |
| expectError bool |
| }{ |
| { |
| name: "StopSuccess", |
| unitName: "stackdriver-logging.service", |
| cmdErr: nil, |
| expectError: false, |
| }, |
| { |
| name: "ReportFailureWhenServiceFailedToStop", |
| unitName: "stackdriver-logging.service", |
| cmdErr: errors.New("exit status 137"), |
| expectError: true, |
| }, |
| { |
| name: "UnitIsAlreadyStopped", |
| unitName: "already-stopped.service", |
| cmdErr: nil, |
| expectError: false, |
| }, |
| { |
| name: "WrongUnitName", |
| unitName: "thisisnotaunit.nonunit", |
| cmdErr: errors.New("exit status 5"), |
| expectError: true, |
| }, |
| { |
| name: "SystemctlError", |
| unitName: "node-problem-detector.service", |
| cmdErr: errors.New("Some error."), |
| expectError: true, |
| }, |
| } |
| for _, test := range tests { |
| t.Run(test.name, func(t *testing.T) { |
| systemdClient := NewSystemdClient(systemctlCmd) |
| unitName := fmt.Sprintf("%v,%v", test.unitName, test.cmdErr) |
| err := systemdClient.StopUnit(unitName) |
| if err != nil && !test.expectError { |
| t.Errorf("got unexpected error: %v", err) |
| } else if err == nil && test.expectError { |
| t.Error("didn't get expected error") |
| } |
| }) |
| } |
| } |