138 lines
3.4 KiB
Go
138 lines
3.4 KiB
Go
package googlecompute
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import (
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"context"
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"fmt"
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"io/ioutil"
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"os"
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"runtime"
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"testing"
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"github.com/hashicorp/packer/packer-plugin-sdk/communicator"
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)
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type MockTunnelDriver struct {
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StopTunnelCalled bool
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StartTunnelCalled bool
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StartTunnelTimeout int
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}
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func (m *MockTunnelDriver) StopTunnel() {
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m.StopTunnelCalled = true
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}
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func (m *MockTunnelDriver) StartTunnel(_ context.Context, _ string, timeout int) error {
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m.StartTunnelCalled = true
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m.StartTunnelTimeout = timeout
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return nil
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}
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func getTestStepStartTunnel() *StepStartTunnel {
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return &StepStartTunnel{
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IAPConf: &IAPConfig{
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IAP: true,
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IAPLocalhostPort: 0,
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IAPHashBang: "/bin/bash",
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IAPExt: "",
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},
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CommConf: &communicator.Config{
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SSH: communicator.SSH{
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SSHPort: 1234,
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},
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},
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AccountFile: "/path/to/account_file.json",
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ProjectId: "fake-project-123",
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}
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}
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func TestStepStartTunnel_CreateTempScript(t *testing.T) {
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s := getTestStepStartTunnel()
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args := []string{"compute", "start-iap-tunnel", "fakeinstance-12345",
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"1234", "--local-host-port=localhost:8774", "--zone", "us-central-b",
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"--project", "fake-project-123"}
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scriptPath, err := s.createTempGcloudScript(args)
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if err != nil {
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t.Fatalf("Shouldn't have error building script file.")
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}
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defer os.Remove(scriptPath)
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f, err := ioutil.ReadFile(scriptPath)
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if err != nil {
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t.Fatalf("couldn't read created inventoryfile: %s", err)
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}
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expected := `#!/bin/bash
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gcloud auth activate-service-account --key-file='/path/to/account_file.json'
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gcloud compute start-iap-tunnel fakeinstance-12345 1234 --local-host-port=localhost:8774 --zone us-central-b --project fake-project-123
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`
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if runtime.GOOS == "windows" {
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// in real life you'd not be passing a HashBang here, but GIGO.
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expected = `#!/bin/bash
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call gcloud auth activate-service-account --key-file "/path/to/account_file.json"
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call gcloud compute start-iap-tunnel fakeinstance-12345 1234 --local-host-port=localhost:8774 --zone us-central-b --project fake-project-123
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`
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}
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if fmt.Sprintf("%s", f) != expected {
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t.Fatalf("script didn't match expected:\n\n expected: \n%s\n; recieved: \n%s\n", expected, f)
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}
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}
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func TestStepStartTunnel_Cleanup(t *testing.T) {
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// Check IAP true
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s := getTestStepStartTunnel()
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td := &MockTunnelDriver{}
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s.tunnelDriver = td
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state := testState(t)
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s.Cleanup(state)
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if !td.StopTunnelCalled {
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t.Fatalf("Should have called StopTunnel, since IAP is true")
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}
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// Check IAP false
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s = getTestStepStartTunnel()
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td = &MockTunnelDriver{}
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s.tunnelDriver = td
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s.IAPConf.IAP = false
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s.Cleanup(state)
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if td.StopTunnelCalled {
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t.Fatalf("Should not have called StopTunnel, since IAP is false")
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}
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}
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func TestStepStartTunnel_ConfigurePort_port_set_by_user(t *testing.T) {
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s := getTestStepStartTunnel()
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s.IAPConf.IAPLocalhostPort = 8447
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ctx := context.TODO()
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err := s.ConfigureLocalHostPort(ctx)
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if err != nil {
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t.Fatalf("Shouldn't have error detecting port")
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}
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if s.IAPConf.IAPLocalhostPort != 8447 {
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t.Fatalf("Shouldn't have found new port; one was configured.")
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}
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}
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func TestStepStartTunnel_ConfigurePort_port_not_set_by_user(t *testing.T) {
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s := getTestStepStartTunnel()
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s.IAPConf.IAPLocalhostPort = 0
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ctx := context.TODO()
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err := s.ConfigureLocalHostPort(ctx)
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if err != nil {
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t.Fatalf("Shouldn't have error detecting port")
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}
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if s.IAPConf.IAPLocalhostPort == 0 {
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t.Fatalf("Should have found new port; none was configured.")
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}
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}
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