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feat(file) write state to stdout when output file flag is
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,112 @@ | ||
| package file | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "fmt" | ||
| "io" | ||
| "log" | ||
| "os" | ||
| "sync" | ||
| "testing" | ||
|
|
||
| "github.com/stretchr/testify/assert" | ||
|
|
||
| "github.com/hbagdi/deck/state" | ||
| "github.com/hbagdi/go-kong/kong" | ||
| ) | ||
|
|
||
| func captureOutput(f func()) string { | ||
| reader, writer, err := os.Pipe() | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| stdout := os.Stdout | ||
| stderr := os.Stderr | ||
| defer func() { | ||
| os.Stdout = stdout | ||
| os.Stderr = stderr | ||
| log.SetOutput(os.Stderr) | ||
| }() | ||
| os.Stdout = writer | ||
| os.Stderr = writer | ||
|
|
||
| log.SetOutput(writer) | ||
| out := make(chan string) | ||
| wg := new(sync.WaitGroup) | ||
| wg.Add(1) | ||
| go func() { | ||
| var buf bytes.Buffer | ||
| wg.Done() | ||
| io.Copy(&buf, reader) | ||
| out <- buf.String() | ||
| }() | ||
| wg.Wait() | ||
| f() | ||
| writer.Close() | ||
| return <-out | ||
| } | ||
| func TestWriteKongStateToStdoutEmptyState(t *testing.T) { | ||
| var ks, _ = state.NewKongState() | ||
| var filename = "-" | ||
| assert := assert.New(t) | ||
| assert.Equal("-", filename) | ||
| assert.NotEmpty(t, ks) | ||
| output := captureOutput(func() { | ||
| KongStateToFile(ks, filename) | ||
| }) | ||
| assert.Equal("{}\n", output) | ||
|
|
||
| } | ||
| func TestWriteKongStateToStdoutStateWithOneService(t *testing.T) { | ||
| var ks, _ = state.NewKongState() | ||
| var filename = "-" | ||
| assert := assert.New(t) | ||
| var service state.Service | ||
| service.ID = kong.String("first") | ||
| service.Host = kong.String("example.com") | ||
| service.Name = kong.String("my-service") | ||
| ks.Services.Add(service) | ||
| output := captureOutput(func() { | ||
| KongStateToFile(ks, filename) | ||
| }) | ||
| fmt.Print(service.Host) | ||
| expected := fmt.Sprintf("services:\n- host: %s\n name: %s\n", *service.Host, *service.Name) | ||
| assert.Equal(expected, output) | ||
|
|
||
| } | ||
| func TestWriteKongStateToStdoutStateWithOneServiceOneRoute(t *testing.T) { | ||
| var ks, _ = state.NewKongState() | ||
| var filename = "-" | ||
| assert := assert.New(t) | ||
| var service state.Service | ||
| service.ID = kong.String("first") | ||
| service.Host = kong.String("example.com") | ||
| service.Name = kong.String("my-service") | ||
| ks.Services.Add(service) | ||
|
|
||
| var route state.Route | ||
| route.Name = kong.String("my-route") | ||
| route.ID = kong.String("first") | ||
| route.Hosts = kong.StringSlice("example.com", "demo.example.com") | ||
| route.Service = &kong.Service{ | ||
| ID: kong.String(*service.ID), | ||
| Name: kong.String(*service.Name), | ||
| } | ||
|
|
||
| ks.Routes.Add(route) | ||
|
|
||
| output := captureOutput(func() { | ||
| KongStateToFile(ks, filename) | ||
| }) | ||
| fmt.Print(service.Host) | ||
| expected := fmt.Sprintf(`services: | ||
| - host: %s | ||
| name: %s | ||
| routes: | ||
| - hosts: | ||
| - %s | ||
| - %s | ||
| name: %s | ||
| `, *service.Host, *service.Name, *route.Hosts[0], *route.Hosts[1], *route.Name) | ||
| assert.Equal(expected, output) | ||
| } |
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