68 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			68 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
package log
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import (
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	"bytes"
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	"os"
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	"strings"
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	"testing"
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)
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// TestLoggingWithTrace checks that if BackTraceAt is set, then the
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// gloghandler is capable of spitting out a stacktrace
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func TestLoggingWithTrace(t *testing.T) {
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	defer stackEnabled.Store(stackEnabled.Load())
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	out := new(bytes.Buffer)
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	logger := New()
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	{
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		glog := NewGlogHandler(StreamHandler(out, TerminalFormat(false)))
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		glog.Verbosity(LvlTrace)
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		if err := glog.BacktraceAt("logger_test.go:24"); err != nil {
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			t.Fatal(err)
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		}
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		logger.SetHandler(glog)
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	}
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	logger.Trace("a message", "foo", "bar") // Will be bumped to INFO
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	have := out.String()
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	if !strings.HasPrefix(have, "INFO") {
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		t.Fatalf("backtraceat should bump level to info: %s", have)
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	}
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	// The timestamp is locale-dependent, so we want to trim that off
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	// "INFO [01-01|00:00:00.000] a messag ..." -> "a messag..."
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	have = strings.Split(have, "]")[1]
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	wantPrefix := " a message\n\ngoroutine"
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	if !strings.HasPrefix(have, wantPrefix) {
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		t.Errorf("\nhave: %q\nwant: %q\n", have, wantPrefix)
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	}
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}
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// TestLoggingWithVmodule checks that vmodule works.
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func TestLoggingWithVmodule(t *testing.T) {
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	defer stackEnabled.Store(stackEnabled.Load())
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	out := new(bytes.Buffer)
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	logger := New()
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	{
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		glog := NewGlogHandler(StreamHandler(out, TerminalFormat(false)))
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		glog.Verbosity(LvlCrit)
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		logger.SetHandler(glog)
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		logger.Warn("This should not be seen", "ignored", "true")
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		glog.Vmodule("logger_test.go=5")
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	}
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	logger.Trace("a message", "foo", "bar")
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	have := out.String()
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	// The timestamp is locale-dependent, so we want to trim that off
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	// "INFO [01-01|00:00:00.000] a messag ..." -> "a messag..."
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	have = strings.Split(have, "]")[1]
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	want := " a message                                foo=bar\n"
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	if have != want {
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		t.Errorf("\nhave: %q\nwant: %q\n", have, want)
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	}
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}
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func BenchmarkTraceLogging(b *testing.B) {
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	Root().SetHandler(LvlFilterHandler(LvlInfo, StreamHandler(os.Stderr, TerminalFormat(true))))
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	b.ResetTimer()
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	for i := 0; i < b.N; i++ {
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		Trace("a message", "v", i)
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	}
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}
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