mirror of
https://github.com/ceph/go-ceph
synced 2024-12-22 06:10:09 +00:00
72493ed2f7
This change adds two log packages. One for the external go-ceph consumers under common/log, and one for the internal use within the go-ceph code under internal/log. The external package exports two functions for consumers, SetWarnf() and SetDebugf(), that set a logger for warnings and debug messages respectively. They take a log.Printf compatible function as argument. The internal package exports these functions as Warnf() and Debugf(), which can be used by the go-ceph code to log warnings and debug messages. Signed-off-by: Sven Anderson <sven@redhat.com>
80 lines
1.6 KiB
Go
80 lines
1.6 KiB
Go
package log_test
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import (
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"io"
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stdlog "log"
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"os"
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"strings"
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"testing"
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"github.com/ceph/go-ceph/common/log"
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intLog "github.com/ceph/go-ceph/internal/log"
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"github.com/stretchr/testify/assert"
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)
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func testLog() {
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intLog.Debugf("-%s-", "debug")
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intLog.Warnf("-%s-", "warn")
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}
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var testOut = []string{
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"<go-ceph>[DBG]log_test.go:16: -debug-",
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"<go-ceph>[WRN]log_test.go:17: -warn-",
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"",
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}
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func checkLines(t *testing.T, lines []string) {
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for i := range lines {
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assert.Equal(t, testOut[len(testOut)-len(lines)+i], lines[i])
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}
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}
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func captureAllOutput(f func()) string {
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oldout := os.Stdout
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olderr := os.Stderr
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oldlog := stdlog.Writer()
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defer func() {
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os.Stdout = oldout
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os.Stderr = olderr
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stdlog.SetOutput(oldlog)
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}()
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r, w, _ := os.Pipe()
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os.Stdout = w
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os.Stderr = w
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stdlog.SetOutput(w)
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go func() {
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f()
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_ = w.Close()
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}()
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buf, _ := io.ReadAll(r)
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return string(buf)
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}
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func TestLogOffByDefault(t *testing.T) {
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out := captureAllOutput(func() { testLog() })
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assert.Empty(t, out)
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}
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func TestLogLevels(t *testing.T) {
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stdlog.Default()
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var out strings.Builder
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warn := stdlog.New(&out, "<go-ceph>[WRN]", stdlog.Lshortfile)
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log.SetWarnf(warn.Printf)
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t.Run("Warnf", func(t *testing.T) {
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out.Reset()
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testLog()
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lines := strings.Split(out.String(), "\n")
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assert.Len(t, lines, 2)
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checkLines(t, lines)
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})
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debug := stdlog.New(&out, "<go-ceph>[DBG]", stdlog.Lshortfile)
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log.SetDebugf(debug.Printf)
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t.Run("Debugf", func(t *testing.T) {
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out.Reset()
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testLog()
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lines := strings.Split(out.String(), "\n")
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assert.Len(t, lines, 3)
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checkLines(t, lines)
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})
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}
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