devices modbus rtu 1.0

2026-04-07 14:20:04 +08:00
parent 28b5082742
commit 51175ffd18
38 changed files with 1006 additions and 745 deletions
--- a/tests/modbus_rtu_framing_predict_test.cpp
+++ b/tests/modbus_rtu_framing_predict_test.cpp
@@ -0,0 +1,57 @@
+#include "plugins/protocols/modbusrtu/framer/ModbusRtuFraming.h"
+
+#include <QtTest/QtTest>
+
+using softbus::message_bus::pipeline::protocol::modbusrtu::predictAduLength;
+using softbus::message_bus::pipeline::protocol::modbusrtu::crc16;
+
+namespace
+{
+void appendCrc(QByteArray& b)
+{
+    const auto c = crc16(reinterpret_cast<const std::uint8_t*>(b.constData()), static_cast<std::size_t>(b.size()));
+    b.append(static_cast<char>(c & 0xFF));
+    b.append(static_cast<char>((c >> 8) & 0xFF));
+}
+} // namespace
+
+class ModbusRtuFramingPredictTest : public QObject
+{
+    Q_OBJECT
+private slots:
+    void readRequestWaitsUntilEightBytes();
+    void readResponseNeedsWholeAndCrc();
+};
+
+void ModbusRtuFramingPredictTest::readRequestWaitsUntilEightBytes()
+{
+    QByteArray partial;
+    partial.append('\x01');
+    partial.append('\x03');
+    partial.append('\x00');
+    partial.append('\x00');
+    partial.append('\x00');
+    partial.append('\x0A');
+    partial.append('\xC5'); // missing last crc byte
+    auto pred = predictAduLength(reinterpret_cast<const std::uint8_t*>(partial.constData()),
+                                 static_cast<std::size_t>(partial.size()), 256);
+    QVERIFY(!pred.has_value());
+}
+
+void ModbusRtuFramingPredictTest::readResponseNeedsWholeAndCrc()
+{
+    QByteArray resp;
+    resp.append('\x01');
+    resp.append('\x03');
+    resp.append('\x02');
+    resp.append('\x12');
+    resp.append('\x34');
+    appendCrc(resp);
+    auto pred = predictAduLength(reinterpret_cast<const std::uint8_t*>(resp.constData()),
+                                 static_cast<std::size_t>(resp.size()), 256);
+    QVERIFY(pred.has_value());
+    QCOMPARE(static_cast<int>(*pred), resp.size());
+}
+
+QTEST_MAIN(ModbusRtuFramingPredictTest)
+#include "modbus_rtu_framing_predict_test.moc"