From 565f23074f1e8c9f2b41cd7df9188dca970fffd5 Mon Sep 17 00:00:00 2001
From: tbs-fpv <info@team-blacksheep.com>
Date: Mon, 26 Apr 2021 17:09:32 +0800
Subject: [PATCH] add unit test for crsfFrameCmdCRC

---
 src/test/unit/rx_crsf_unittest.cc | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/src/test/unit/rx_crsf_unittest.cc b/src/test/unit/rx_crsf_unittest.cc
index fc366bbc1..987aad1e0 100644
--- a/src/test/unit/rx_crsf_unittest.cc
+++ b/src/test/unit/rx_crsf_unittest.cc
@@ -45,6 +45,7 @@ extern "C" {
 
     void crsfDataReceive(uint16_t c);
     uint8_t crsfFrameCRC(void);
+    uint8_t crsfFrameCmdCRC(void);
     uint8_t crsfFrameStatus(void);
     uint16_t crsfReadRawRC(const rxRuntimeState_t *rxRuntimeState, uint8_t chan);
 
@@ -140,6 +141,20 @@ TEST(CrossFireTest, TestCrsfFrameStatus)
     }
 }
 
+const uint8_t buadrateNegotiationFrame[] = {
+    0xC8,0x0C,0x32,0xC8,0xEC,0x0A,0x70,0x01,0x00,0x1E,0x84,0x80,0x22,0x72
+};
+
+TEST(CrossFireTest, TestCrsfCmdFrameCrc)
+{
+    crsfFrame = *(const crsfFrame_t*)buadrateNegotiationFrame;
+    crsfFrameDone = true;
+    const uint8_t crsfCmdFrameCrc = crsfFrameCmdCRC();
+    const uint8_t crsfFrameCrc = crsfFrameCRC();
+    EXPECT_EQ(crsfCmdFrameCrc, crsfFrame.frame.payload[crsfFrame.frame.frameLength - CRSF_FRAME_LENGTH_ADDRESS - CRSF_FRAME_LENGTH_FRAMELENGTH - 1]);
+    EXPECT_EQ(crsfFrameCrc, crsfFrame.frame.payload[crsfFrame.frame.frameLength - CRSF_FRAME_LENGTH_ADDRESS - CRSF_FRAME_LENGTH_FRAMELENGTH]);
+}
+
 /*
  * Frame is of form
  * <Device address> <Frame length> < Type>  <Payload> < CRC>