commit for version used in evaluation of thesis

internal/collector/log_test.go

@@ -0,0 +1,45 @@
+package collector
+
+import (
+	"os"
+	"testing"
+	"time"
+
+	"codeberg.org/pata1704/guenther/internal/config"
+	"codeberg.org/pata1704/guenther/pkg/types"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestLogCollector_ProcessLine(t *testing.T) {
+	// 1. Create temporary log file
+	tmpFile, err := os.CreateTemp("", "test_log_*.log")
+	assert.NoError(t, err)
+	defer os.Remove(tmpFile.Name())
+
+	outputChan := make(chan types.LogEvent, 10)
+	healthChan := make(chan types.StageHealth, 10)
+
+	cfg := &config.Config{}
+	cfg.Ingestion.LogPath = tmpFile.Name()
+	cfg.Drain.Depth = 4
+	cfg.Drain.SimThreshold = 0.5
+	cfg.Drain.MaxChildren = 100
+	collector := NewLogCollector(cfg, outputChan, healthChan)
+
+	// 2. Test line processing with specific regex patterns
+	testLine := "2026-02-26 13:00:00.123456 INFO Transfer from 192.168.1.1:8080 completed (duration=1.23)"
+	collector.processLine(testLine)
+
+	select {
+	case ev := <-outputChan:
+		assert.Equal(t, "INFO", ev.Severity)
+		assert.Greater(t, ev.TemplateID, 0)
+
+		t.Logf("Extracted parameters: %v", ev.Params)
+
+		// Unconfigured Drain3 template yields empty map
+		assert.GreaterOrEqual(t, len(ev.Params), 0)
+	case <-time.After(1 * time.Second):
+		t.Fatal("Timeout waiting for LogEvent")
+	}
+}