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54 lines
1.4 KiB
Go
54 lines
1.4 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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package loggerx
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import (
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"fmt"
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"io"
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"strings"
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"testing"
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"tailscale.com/types/logger"
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)
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func TestDebugLogging(t *testing.T) {
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var normal, verbose strings.Builder
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SetForTest(t, logfTo(&normal), logfTo(&verbose))
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checkOutput := func(wantNormal, wantVerbose string) {
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t.Helper()
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if gotNormal := normal.String(); gotNormal != wantNormal {
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t.Errorf("Unexpected normal output: got %q; want %q", gotNormal, wantNormal)
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}
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if gotVerbose := verbose.String(); gotVerbose != wantVerbose {
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t.Errorf("Unexpected verbose output: got %q; want %q", gotVerbose, wantVerbose)
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}
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normal.Reset()
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verbose.Reset()
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}
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Errorf("This is an error message: %v", 42)
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checkOutput("This is an error message: 42", "")
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Verbosef("This is a verbose message: %v", 17)
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checkOutput("", "This is a verbose message: 17")
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SetDebugLoggingEnabled(true)
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Errorf("This is an error message: %v", 42)
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checkOutput("This is an error message: 42", "")
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Verbosef("This is a verbose message: %v", 17)
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checkOutput("This is a verbose message: 17", "")
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SetDebugLoggingEnabled(false)
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Errorf("This is an error message: %v", 42)
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checkOutput("This is an error message: 42", "")
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Verbosef("This is a verbose message: %v", 17)
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checkOutput("", "This is a verbose message: 17")
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}
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func logfTo(w io.Writer) logger.Logf {
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return func(format string, args ...any) {
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fmt.Fprintf(w, format, args...)
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}
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}
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