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41 lines
863 B
41 lines
863 B
package log
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import (
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"io"
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"os"
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"sync"
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"testing"
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)
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var (
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// reuse the same logger across all tests
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testingLoggerMtx = sync.Mutex{}
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testingLogger Logger
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)
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// TestingLogger returns a Logger which writes to STDOUT if test(s) are being
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// run with the verbose (-v) flag, NopLogger otherwise.
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//
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// NOTE:
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// - A call to NewTestingLogger() must be made inside a test (not in the init func)
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// because verbose flag only set at the time of testing.
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func TestingLogger() Logger {
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return TestingLoggerWithOutput(os.Stdout)
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}
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func TestingLoggerWithOutput(w io.Writer) Logger {
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testingLoggerMtx.Lock()
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defer testingLoggerMtx.Unlock()
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if testingLogger != nil {
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return testingLogger
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}
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if testing.Verbose() {
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testingLogger = MustNewDefaultLogger(LogFormatText, LogLevelDebug, true)
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} else {
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testingLogger = NewNopLogger()
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}
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return testingLogger
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}
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