66 lines
1.6 KiB
Go
66 lines
1.6 KiB
Go
package log
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import (
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"bytes"
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"strings"
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"testing"
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"log/slog"
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"github.com/stretchr/testify/assert"
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)
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func TestLoggedReadWriter(t *testing.T) {
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t.Run("Read method logs and passes data", func(t *testing.T) {
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// Setup
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inputData := "test input data"
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reader := strings.NewReader(inputData)
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// Create logger with buffer to capture output
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var logBuffer bytes.Buffer
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logger := slog.New(slog.NewTextHandler(&logBuffer, &slog.HandlerOptions{ReplaceAttr: removeTimeAttr}))
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lrw := NewIOLogger(reader, nil, logger)
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// Test Read
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buf := make([]byte, 100)
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n, err := lrw.Read(buf)
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// Assertions
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assert.NoError(t, err)
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assert.Equal(t, len(inputData), n)
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assert.Equal(t, inputData, string(buf[:n]))
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assert.Contains(t, logBuffer.String(), "[stdin]")
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assert.Contains(t, logBuffer.String(), inputData)
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})
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t.Run("Write method logs and passes data", func(t *testing.T) {
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// Setup
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outputData := "test output data"
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var writeBuffer bytes.Buffer
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// Create logger with buffer to capture output
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var logBuffer bytes.Buffer
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logger := slog.New(slog.NewTextHandler(&logBuffer, &slog.HandlerOptions{ReplaceAttr: removeTimeAttr}))
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lrw := NewIOLogger(nil, &writeBuffer, logger)
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// Test Write
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n, err := lrw.Write([]byte(outputData))
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// Assertions
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assert.NoError(t, err)
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assert.Equal(t, len(outputData), n)
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assert.Equal(t, outputData, writeBuffer.String())
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assert.Contains(t, logBuffer.String(), "[stdout]")
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assert.Contains(t, logBuffer.String(), outputData)
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})
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}
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func removeTimeAttr(groups []string, a slog.Attr) slog.Attr {
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if a.Key == slog.TimeKey && len(groups) == 0 {
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return slog.Attr{}
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}
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return a
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}
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