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@@ -0,0 +1,100 @@
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+package logger
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+
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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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+
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+type TestLoggerJSON struct {
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+ *json.Encoder
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+}
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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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+
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+func (l *TestLoggerJSON) Close() error {
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+ return nil
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+}
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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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+
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+type TestLoggerText struct {
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+ *bytes.Buffer
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+}
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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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+
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+func (l *TestLoggerText) Close() error {
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+ return nil
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+}
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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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+
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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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+
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+ var jsonBuf bytes.Buffer
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+
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+ jsonLog := &TestLoggerJSON{Encoder: json.NewEncoder(&jsonBuf)}
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+
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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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+ time.Sleep(100 * time.Millisecond)
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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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