mirror of
https://github.com/moby/moby.git
synced 2022-11-09 12:21:53 -05:00
109 lines
2.2 KiB
Go
109 lines
2.2 KiB
Go
package logger
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import (
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"bytes"
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"encoding/json"
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"io"
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"testing"
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"time"
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)
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type TestLoggerJSON struct {
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*json.Encoder
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}
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func (l *TestLoggerJSON) Log(m *Message) error {
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return l.Encode(m)
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}
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func (l *TestLoggerJSON) Close() error {
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return nil
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}
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func (l *TestLoggerJSON) Name() string {
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return "json"
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}
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type TestLoggerText struct {
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*bytes.Buffer
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}
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func (l *TestLoggerText) Log(m *Message) error {
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_, err := l.WriteString(m.ContainerID + " " + m.Source + " " + string(m.Line) + "\n")
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return err
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}
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func (l *TestLoggerText) Close() error {
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return nil
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}
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func (l *TestLoggerText) Name() string {
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return "text"
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}
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func TestCopier(t *testing.T) {
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stdoutLine := "Line that thinks that it is log line from docker stdout"
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stderrLine := "Line that thinks that it is log line from docker stderr"
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var stdout bytes.Buffer
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var stderr bytes.Buffer
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for i := 0; i < 30; i++ {
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if _, err := stdout.WriteString(stdoutLine + "\n"); err != nil {
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t.Fatal(err)
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}
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if _, err := stderr.WriteString(stderrLine + "\n"); err != nil {
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t.Fatal(err)
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}
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}
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var jsonBuf bytes.Buffer
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jsonLog := &TestLoggerJSON{Encoder: json.NewEncoder(&jsonBuf)}
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cid := "a7317399f3f857173c6179d44823594f8294678dea9999662e5c625b5a1c7657"
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c, err := NewCopier(cid,
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map[string]io.Reader{
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"stdout": &stdout,
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"stderr": &stderr,
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},
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jsonLog)
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if err != nil {
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t.Fatal(err)
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}
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c.Run()
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wait := make(chan struct{})
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go func() {
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c.Wait()
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close(wait)
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}()
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select {
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case <-time.After(1 * time.Second):
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t.Fatal("Copier failed to do its work in 1 second")
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case <-wait:
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}
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dec := json.NewDecoder(&jsonBuf)
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for {
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var msg Message
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if err := dec.Decode(&msg); err != nil {
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if err == io.EOF {
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break
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}
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t.Fatal(err)
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}
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if msg.Source != "stdout" && msg.Source != "stderr" {
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t.Fatalf("Wrong Source: %q, should be %q or %q", msg.Source, "stdout", "stderr")
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}
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if msg.ContainerID != cid {
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t.Fatalf("Wrong ContainerID: %q, expected %q", msg.ContainerID, cid)
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}
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if msg.Source == "stdout" {
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if string(msg.Line) != stdoutLine {
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t.Fatalf("Wrong Line: %q, expected %q", msg.Line, stdoutLine)
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}
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}
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if msg.Source == "stderr" {
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if string(msg.Line) != stderrLine {
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t.Fatalf("Wrong Line: %q, expected %q", msg.Line, stderrLine)
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}
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}
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}
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}
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