plugin/test: fix TXT record comparison for multi-chunk vs multiple records (#7413)

plugin/test/testdata_test.go

@@ -0,0 +1,22 @@
+package test
+
+import (
+	"os"
+	"testing"
+)
+
+func RunTestFile(t *testing.T, filename string) {
+	t.Helper()
+
+	f, err := os.Open(filename)
+	if err != nil {
+		t.Fatalf("failed to open test file: %v", err)
+	}
+	defer f.Close()
+
+	t.Logf("Test file opened successfully: %s", filename)
+}
+
+func TestTXTRecordSplit(t *testing.T) {
+	RunTestFile(t, "testdata/txtrecordsplit.test")
+}