DockerCLI/cli/command/system/version_test.go

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package system
import (
"fmt"
"strings"
"testing"
"github.com/docker/cli/cli/command"
"github.com/docker/cli/internal/test"
"github.com/docker/docker/api"
"github.com/docker/docker/api/types"
"github.com/stretchr/testify/assert"
"golang.org/x/net/context"
)
func TestVersionWithoutServer(t *testing.T) {
cli := test.NewFakeCli(&fakeClient{
serverVersion: func(ctx context.Context) (types.Version, error) {
return types.Version{}, fmt.Errorf("no server")
},
})
cmd := NewVersionCommand(cli)
cmd.SetOutput(cli.Err())
assert.Error(t, cmd.Execute())
assert.Contains(t, cleanTabs(cli.OutBuffer().String()), "Client:")
assert.NotContains(t, cleanTabs(cli.OutBuffer().String()), "Server:")
}
func fakeServerVersion(ctx context.Context) (types.Version, error) {
return types.Version{
Version: "docker-dev",
APIVersion: api.DefaultVersion,
}, nil
}
func TestVersionWithOrchestrator(t *testing.T) {
cli := test.NewFakeCli(&fakeClient{serverVersion: fakeServerVersion})
cli.SetClientInfo(func() command.ClientInfo { return command.ClientInfo{Orchestrator: "swarm"} })
cmd := NewVersionCommand(cli)
assert.NoError(t, cmd.Execute())
assert.Contains(t, cleanTabs(cli.OutBuffer().String()), "Orchestrator: swarm")
}
func cleanTabs(line string) string {
return strings.Join(strings.Fields(line), " ")
}