DockerCLI/command/swarm/init_test.go

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package swarm
import (
"bytes"
"fmt"
"io/ioutil"
"testing"
"github.com/docker/docker/api/types"
"github.com/docker/docker/api/types/swarm"
"github.com/docker/docker/cli/internal/test"
"github.com/docker/docker/pkg/testutil/assert"
"github.com/docker/docker/pkg/testutil/golden"
)
func TestSwarmInitErrorOnAPIFailure(t *testing.T) {
testCases := []struct {
name string
flags map[string]string
swarmInitFunc func() (string, error)
swarmInspectFunc func() (swarm.Swarm, error)
swarmGetUnlockKeyFunc func() (types.SwarmUnlockKeyResponse, error)
nodeInspectFunc func() (swarm.Node, []byte, error)
expectedError string
}{
{
name: "init-failed",
swarmInitFunc: func() (string, error) {
return "", fmt.Errorf("error initializing the swarm")
},
expectedError: "error initializing the swarm",
},
{
name: "init-faild-with-ip-choice",
swarmInitFunc: func() (string, error) {
return "", fmt.Errorf("could not choose an IP address to advertise")
},
expectedError: "could not choose an IP address to advertise - specify one with --advertise-addr",
},
{
name: "swarm-inspect-after-init-failed",
swarmInspectFunc: func() (swarm.Swarm, error) {
return swarm.Swarm{}, fmt.Errorf("error inspecting the swarm")
},
expectedError: "error inspecting the swarm",
},
{
name: "node-inspect-after-init-failed",
nodeInspectFunc: func() (swarm.Node, []byte, error) {
return swarm.Node{}, []byte{}, fmt.Errorf("error inspecting the node")
},
expectedError: "error inspecting the node",
},
{
name: "swarm-get-unlock-key-after-init-failed",
flags: map[string]string{
flagAutolock: "true",
},
swarmGetUnlockKeyFunc: func() (types.SwarmUnlockKeyResponse, error) {
return types.SwarmUnlockKeyResponse{}, fmt.Errorf("error getting swarm unlock key")
},
expectedError: "could not fetch unlock key: error getting swarm unlock key",
},
}
for _, tc := range testCases {
buf := new(bytes.Buffer)
cmd := newInitCommand(
test.NewFakeCli(&fakeClient{
swarmInitFunc: tc.swarmInitFunc,
swarmInspectFunc: tc.swarmInspectFunc,
swarmGetUnlockKeyFunc: tc.swarmGetUnlockKeyFunc,
nodeInspectFunc: tc.nodeInspectFunc,
}, buf))
for key, value := range tc.flags {
cmd.Flags().Set(key, value)
}
cmd.SetOutput(ioutil.Discard)
assert.Error(t, cmd.Execute(), tc.expectedError)
}
}
func TestSwarmInit(t *testing.T) {
testCases := []struct {
name string
flags map[string]string
swarmInitFunc func() (string, error)
swarmInspectFunc func() (swarm.Swarm, error)
swarmGetUnlockKeyFunc func() (types.SwarmUnlockKeyResponse, error)
nodeInspectFunc func() (swarm.Node, []byte, error)
}{
{
name: "init",
swarmInitFunc: func() (string, error) {
return "nodeID", nil
},
},
{
name: "init-autolock",
flags: map[string]string{
flagAutolock: "true",
},
swarmInitFunc: func() (string, error) {
return "nodeID", nil
},
swarmGetUnlockKeyFunc: func() (types.SwarmUnlockKeyResponse, error) {
return types.SwarmUnlockKeyResponse{
UnlockKey: "unlock-key",
}, nil
},
},
}
for _, tc := range testCases {
buf := new(bytes.Buffer)
cmd := newInitCommand(
test.NewFakeCli(&fakeClient{
swarmInitFunc: tc.swarmInitFunc,
swarmInspectFunc: tc.swarmInspectFunc,
swarmGetUnlockKeyFunc: tc.swarmGetUnlockKeyFunc,
nodeInspectFunc: tc.nodeInspectFunc,
}, buf))
for key, value := range tc.flags {
cmd.Flags().Set(key, value)
}
assert.NilError(t, cmd.Execute())
actual := buf.String()
expected := golden.Get(t, []byte(actual), fmt.Sprintf("init-%s.golden", tc.name))
assert.EqualNormalizedString(t, assert.RemoveSpace, actual, string(expected))
}
}