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Merge pull request #5 from gubernator-io/thrawn/optional-config-file
Fixed regression, gubernator should start without a config file
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,117 @@ | ||
| package main_test | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "context" | ||
| "crypto/tls" | ||
| "errors" | ||
| "flag" | ||
| "fmt" | ||
| "net" | ||
| "os" | ||
| "os/exec" | ||
| "strings" | ||
| "syscall" | ||
| "testing" | ||
| "time" | ||
|
|
||
| cli "github.com/gubernator-io/gubernator/v2/cmd/gubernator" | ||
| "github.com/stretchr/testify/assert" | ||
| "github.com/stretchr/testify/require" | ||
| "golang.org/x/net/proxy" | ||
| ) | ||
|
|
||
| var cliRunning = flag.Bool("test_cli_running", false, "True if running as a child process; used by TestCLI") | ||
|
|
||
| func TestCLI(t *testing.T) { | ||
| if *cliRunning { | ||
| if err := cli.Main(context.Background()); err != nil { | ||
| //if !strings.Contains(err.Error(), "context deadline exceeded") { | ||
| // log.Print(err.Error()) | ||
| // os.Exit(1) | ||
| //} | ||
| fmt.Print(err.Error()) | ||
| os.Exit(1) | ||
| } | ||
| os.Exit(0) | ||
| } | ||
|
|
||
| tests := []struct { | ||
| args []string | ||
| env []string | ||
| name string | ||
| contains string | ||
| }{ | ||
| { | ||
| name: "Should start with no config provided", | ||
| env: []string{ | ||
| "GUBER_GRPC_ADDRESS=localhost:8080", | ||
| "GUBER_HTTP_ADDRESS=localhost:8081", | ||
| }, | ||
| args: []string{}, | ||
| contains: "HTTP Gateway Listening on", | ||
| }, | ||
| } | ||
| for _, tt := range tests { | ||
| t.Run(tt.name, func(t *testing.T) { | ||
| c := exec.Command(os.Args[0], append([]string{"--test.run=TestCLI", "--test_cli_running"}, tt.args...)...) | ||
| var out bytes.Buffer | ||
| c.Stdout = &out | ||
| c.Stderr = &out | ||
| c.Env = tt.env | ||
|
|
||
| if err := c.Start(); err != nil { | ||
| t.Fatal("failed to start child process: ", err) | ||
| } | ||
|
|
||
| ctx, cancel := context.WithTimeout(context.Background(), time.Second*5) | ||
| defer cancel() | ||
|
|
||
| waitCh := make(chan struct{}) | ||
| go func() { | ||
| _ = c.Wait() | ||
| close(waitCh) | ||
| }() | ||
|
|
||
| err := waitForConnect(ctx, "localhost:8080", nil) | ||
| assert.NoError(t, err) | ||
| time.Sleep(time.Second * 1) | ||
|
|
||
| err = c.Process.Signal(syscall.SIGTERM) | ||
| require.NoError(t, err) | ||
|
|
||
| <-waitCh | ||
| assert.Contains(t, out.String(), tt.contains) | ||
| }) | ||
| } | ||
| } | ||
|
|
||
| // waitForConnect waits until the passed address is accepting connections. | ||
| // It will continue to attempt a connection until context is canceled. | ||
| func waitForConnect(ctx context.Context, address string, cfg *tls.Config) error { | ||
| if address == "" { | ||
| return fmt.Errorf("waitForConnect() requires a valid address") | ||
| } | ||
|
|
||
| var errs []string | ||
| for { | ||
| var d proxy.ContextDialer | ||
| if cfg != nil { | ||
| d = &tls.Dialer{Config: cfg} | ||
| } else { | ||
| d = &net.Dialer{} | ||
| } | ||
| conn, err := d.DialContext(ctx, "tcp", address) | ||
| if err == nil { | ||
| _ = conn.Close() | ||
| return nil | ||
| } | ||
| errs = append(errs, err.Error()) | ||
| if ctx.Err() != nil { | ||
| errs = append(errs, ctx.Err().Error()) | ||
| return errors.New(strings.Join(errs, "\n")) | ||
| } | ||
| time.Sleep(time.Millisecond * 100) | ||
| continue | ||
| } | ||
| } |