DockerCLI/command/node/list_test.go

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package node
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"
// Import builders to get the builder function as package function
. "github.com/docker/docker/cli/internal/test/builders"
"github.com/docker/docker/pkg/testutil/assert"
)
func TestNodeListErrorOnAPIFailure(t *testing.T) {
testCases := []struct {
nodeListFunc func() ([]swarm.Node, error)
infoFunc func() (types.Info, error)
expectedError string
}{
{
nodeListFunc: func() ([]swarm.Node, error) {
return []swarm.Node{}, fmt.Errorf("error listing nodes")
},
expectedError: "error listing nodes",
},
{
nodeListFunc: func() ([]swarm.Node, error) {
return []swarm.Node{
{
ID: "nodeID",
},
}, nil
},
infoFunc: func() (types.Info, error) {
return types.Info{}, fmt.Errorf("error asking for node info")
},
expectedError: "error asking for node info",
},
}
for _, tc := range testCases {
buf := new(bytes.Buffer)
cmd := newListCommand(
test.NewFakeCli(&fakeClient{
nodeListFunc: tc.nodeListFunc,
infoFunc: tc.infoFunc,
}, buf))
cmd.SetOutput(ioutil.Discard)
assert.Error(t, cmd.Execute(), tc.expectedError)
}
}
func TestNodeList(t *testing.T) {
buf := new(bytes.Buffer)
cmd := newListCommand(
test.NewFakeCli(&fakeClient{
nodeListFunc: func() ([]swarm.Node, error) {
return []swarm.Node{
*Node(NodeID("nodeID1"), Hostname("nodeHostname1"), Manager(Leader())),
*Node(NodeID("nodeID2"), Hostname("nodeHostname2"), Manager()),
*Node(NodeID("nodeID3"), Hostname("nodeHostname3")),
}, nil
},
infoFunc: func() (types.Info, error) {
return types.Info{
Swarm: swarm.Info{
NodeID: "nodeID1",
},
}, nil
},
}, buf))
assert.NilError(t, cmd.Execute())
assert.Contains(t, buf.String(), `nodeID1 * nodeHostname1 Ready Active Leader`)
assert.Contains(t, buf.String(), `nodeID2 nodeHostname2 Ready Active Reachable`)
assert.Contains(t, buf.String(), `nodeID3 nodeHostname3 Ready Active`)
}
func TestNodeListQuietShouldOnlyPrintIDs(t *testing.T) {
buf := new(bytes.Buffer)
cmd := newListCommand(
test.NewFakeCli(&fakeClient{
nodeListFunc: func() ([]swarm.Node, error) {
return []swarm.Node{
*Node(),
}, nil
},
}, buf))
cmd.Flags().Set("quiet", "true")
assert.NilError(t, cmd.Execute())
assert.Contains(t, buf.String(), "nodeID")
}
// Test case for #24090
func TestNodeListContainsHostname(t *testing.T) {
buf := new(bytes.Buffer)
cmd := newListCommand(test.NewFakeCli(&fakeClient{}, buf))
assert.NilError(t, cmd.Execute())
assert.Contains(t, buf.String(), "HOSTNAME")
}