1 files changed, 43 insertions, 0 deletions
diff --git a/modules/log/manager_test.go b/modules/log/manager_test.go
new file mode 100644
index 0000000..3839080
--- /dev/null
+++ b/modules/log/manager_test.go
@@ -0,0 +1,43 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package log
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestSharedWorker(t *testing.T) {
+	RegisterEventWriter("dummy", func(writerName string, writerMode WriterMode) EventWriter {
+		return newDummyWriter(writerName, writerMode.Level, 0)
+	})
+
+	m := NewManager()
+	_, err := m.NewSharedWriter("dummy-1", "dummy", WriterMode{Level: DEBUG, Flags: FlagsFromBits(0)})
+	require.NoError(t, err)
+
+	w := m.GetSharedWriter("dummy-1")
+	assert.NotNil(t, w)
+	loggerTest := m.GetLogger("test")
+	loggerTest.AddWriters(w)
+	loggerTest.Info("msg-1")
+	loggerTest.ReplaceAllWriters() // the shared writer is not closed here
+	loggerTest.Info("never seen")
+
+	// the shared writer can still be used later
+	w = m.GetSharedWriter("dummy-1")
+	assert.NotNil(t, w)
+	loggerTest.AddWriters(w)
+	loggerTest.Info("msg-2")
+
+	m.GetLogger("test-another").AddWriters(w)
+	m.GetLogger("test-another").Info("msg-3")
+
+	m.Close()
+
+	logs := w.(*dummyWriter).GetLogs()
+	assert.Equal(t, []string{"msg-1\n", "msg-2\n", "msg-3\n"}, logs)
+}