125 lines
2.7 KiB
Go
125 lines
2.7 KiB
Go
package test
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import (
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"bytes"
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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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)
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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(t *testing.T, cmds []*lcli.Command) *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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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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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) run(cmd []string, params []string, args []string) string {
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// Add parameter --api-url=<node api listener address>
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apiFlag := "--api-url=" + c.addr.String()
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params = append([]string{apiFlag}, params...)
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err := c.cctx.App.Run(append(append(cmd, params...), args...))
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require.NoError(c.t, err)
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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
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}
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func (c *mockCLIClient) runCmd(input []string) string {
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cmd := c.cmdByNameSub(input[0], input[1])
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out, err := c.runCmdRaw(cmd, input[2:])
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require.NoError(c.t, err)
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return out
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}
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func (c *mockCLIClient) cmdByNameSub(name string, sub string) *lcli.Command {
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for _, c := range c.cmds {
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if c.Name == name {
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for _, s := range c.Subcommands {
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if s.Name == sub {
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return s
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}
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}
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}
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}
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return nil
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}
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func (c *mockCLIClient) runCmdRaw(cmd *lcli.Command, input []string) (string, error) {
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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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