146 lines
3.4 KiB
Go
146 lines
3.4 KiB
Go
package kit
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import (
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"bytes"
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"context"
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"flag"
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"strings"
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"testing"
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"github.com/multiformats/go-multiaddr"
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"github.com/stretchr/testify/require"
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lcli "github.com/urfave/cli/v2"
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"github.com/filecoin-project/lotus/api"
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)
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type MockCLI struct {
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t *testing.T
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cmds []*lcli.Command
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cctx *lcli.Context
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out *bytes.Buffer
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}
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func NewMockCLI(ctx context.Context, t *testing.T, cmds []*lcli.Command, nodeType api.NodeType) *MockCLI {
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// Create a CLI App with an --api-url flag so that we can specify which node
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// the command should be executed against
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app := &lcli.App{
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Flags: []lcli.Flag{
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&lcli.StringFlag{
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Name: "api-url",
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Hidden: true,
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},
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},
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Commands: cmds,
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}
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// Set node type
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api.RunningNodeType = nodeType
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var out bytes.Buffer
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app.Writer = &out
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app.Setup()
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cctx := lcli.NewContext(app, &flag.FlagSet{}, nil)
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cctx.Context = ctx
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return &MockCLI{t: t, cmds: cmds, cctx: cctx, out: &out}
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}
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func (c *MockCLI) Client(addr multiaddr.Multiaddr) *MockCLIClient {
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return &MockCLIClient{t: c.t, cmds: c.cmds, addr: addr, cctx: c.cctx, out: c.out}
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}
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// MockCLIClient runs commands against a particular node
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type MockCLIClient struct {
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t *testing.T
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cmds []*lcli.Command
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addr multiaddr.Multiaddr
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cctx *lcli.Context
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out *bytes.Buffer
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}
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func (c *MockCLIClient) RunCmd(input ...string) string {
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out, err := c.RunCmdRaw(input...)
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require.NoError(c.t, err, "output:\n%s", out)
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return out
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}
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// Given an input, find the corresponding command or sub-command.
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// eg "paych add-funds"
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func (c *MockCLIClient) cmdByNameSub(input []string) (*lcli.Command, []string) {
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name := input[0]
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for _, cmd := range c.cmds {
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if cmd.Name == name {
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return c.findSubcommand(cmd, input[1:])
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}
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}
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return nil, []string{}
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}
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func (c *MockCLIClient) findSubcommand(cmd *lcli.Command, input []string) (*lcli.Command, []string) {
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// If there are no sub-commands, return the current command
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if len(cmd.Subcommands) == 0 {
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return cmd, input
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}
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// Check each sub-command for a match against the name
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subName := input[0]
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for _, subCmd := range cmd.Subcommands {
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if subCmd.Name == subName {
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// Found a match, recursively search for sub-commands
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return c.findSubcommand(subCmd, input[1:])
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}
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}
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return nil, []string{}
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}
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func (c *MockCLIClient) RunCmdRaw(input ...string) (string, error) {
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cmd, input := c.cmdByNameSub(input)
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if cmd == nil {
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panic("Could not find command " + input[0] + " " + input[1])
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}
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// prepend --api-url=<node api listener address>
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apiFlag := "--api-url=" + c.addr.String()
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input = append([]string{apiFlag}, input...)
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fs := c.flagSet(cmd)
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err := fs.Parse(input)
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require.NoError(c.t, err)
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err = cmd.Action(lcli.NewContext(c.cctx.App, fs, c.cctx))
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// Get the output
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str := strings.TrimSpace(c.out.String())
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c.out.Reset()
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return str, err
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}
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func (c *MockCLIClient) flagSet(cmd *lcli.Command) *flag.FlagSet {
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// Apply app level flags (so we can process --api-url flag)
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fs := &flag.FlagSet{}
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for _, f := range c.cctx.App.Flags {
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err := f.Apply(fs)
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if err != nil {
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c.t.Fatal(err)
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}
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}
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// Apply command level flags
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for _, f := range cmd.Flags {
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err := f.Apply(fs)
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if err != nil {
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c.t.Fatal(err)
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}
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}
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return fs
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}
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func (c *MockCLIClient) RunInteractiveCmd(cmd []string, interactive []string) string {
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c.toStdin(strings.Join(interactive, "\n") + "\n")
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return c.RunCmd(cmd...)
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}
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func (c *MockCLIClient) toStdin(s string) {
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c.cctx.App.Metadata["stdin"] = bytes.NewBufferString(s)
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}
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