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package node
import (
"bytes"
"io/ioutil"
"testing"
"github.com/docker/cli/cli/internal/test"
"github.com/docker/docker/api/types/swarm"
"github.com/pkg/errors"
// Import builders to get the builder function as package function
. "github.com/docker/cli/cli/internal/test/builders"
"github.com/docker/docker/pkg/testutil"
"github.com/stretchr/testify/assert"
)
func TestNodeDemoteErrors(t *testing.T) {
testCases := []struct {
args []string
nodeInspectFunc func() (swarm.Node, []byte, error)
nodeUpdateFunc func(nodeID string, version swarm.Version, node swarm.NodeSpec) error
expectedError string
}{
{
expectedError: "requires at least 1 argument",
},
{
args: []string{"nodeID"},
nodeInspectFunc: func() (swarm.Node, []byte, error) {
return swarm.Node{}, []byte{}, errors.Errorf("error inspecting the node")
},
expectedError: "error inspecting the node",
},
{
args: []string{"nodeID"},
nodeUpdateFunc: func(nodeID string, version swarm.Version, node swarm.NodeSpec) error {
return errors.Errorf("error updating the node")
},
expectedError: "error updating the node",
},
}
for _, tc := range testCases {
buf := new(bytes.Buffer)
cmd := newDemoteCommand(
test.NewFakeCli(&fakeClient{
nodeInspectFunc: tc.nodeInspectFunc,
nodeUpdateFunc: tc.nodeUpdateFunc,
}, buf))
cmd.SetArgs(tc.args)
cmd.SetOutput(ioutil.Discard)
testutil.ErrorContains(t, cmd.Execute(), tc.expectedError)
}
}
func TestNodeDemoteNoChange(t *testing.T) {
buf := new(bytes.Buffer)
cmd := newDemoteCommand(
test.NewFakeCli(&fakeClient{
nodeInspectFunc: func() (swarm.Node, []byte, error) {
return *Node(), []byte{}, nil
},
nodeUpdateFunc: func(nodeID string, version swarm.Version, node swarm.NodeSpec) error {
if node.Role != swarm.NodeRoleWorker {
return errors.Errorf("expected role worker, got %s", node.Role)
}
return nil
},
}, buf))
cmd.SetArgs([]string{"nodeID"})
assert.NoError(t, cmd.Execute())
}
func TestNodeDemoteMultipleNode(t *testing.T) {
buf := new(bytes.Buffer)
cmd := newDemoteCommand(
test.NewFakeCli(&fakeClient{
nodeInspectFunc: func() (swarm.Node, []byte, error) {
return *Node(Manager()), []byte{}, nil
},
nodeUpdateFunc: func(nodeID string, version swarm.Version, node swarm.NodeSpec) error {
if node.Role != swarm.NodeRoleWorker {
return errors.Errorf("expected role worker, got %s", node.Role)
}
return nil
},
}, buf))
cmd.SetArgs([]string{"nodeID1", "nodeID2"})
assert.NoError(t, cmd.Execute())
}