Add first unit test for some code in serial.c. Fix compiler warnings in

other tests.

src/test/unit/altitude_hold_unittest.cc

@@ -71,17 +71,17 @@ TEST(AltitudeHoldTest, IsThrustFacingDownwards)
     // given
 
     inclinationExpectation_t inclinationExpectations[] = {
-            { { 0, 0 }, DOWNWARDS_THRUST },
-            { { 799, 799 }, DOWNWARDS_THRUST },
-            { { 800, 799 }, UPWARDS_THRUST },
-            { { 799, 800 }, UPWARDS_THRUST },
-            { { 800, 800 }, UPWARDS_THRUST },
-            { { 801, 801 }, UPWARDS_THRUST },
-            { { -799, -799 }, DOWNWARDS_THRUST },
-            { { -800, -799 }, UPWARDS_THRUST },
-            { { -799, -800 }, UPWARDS_THRUST },
-            { { -800, -800 }, UPWARDS_THRUST },
-            { { -801, -801 }, UPWARDS_THRUST }
+            { {{    0,    0 }}, DOWNWARDS_THRUST },
+            { {{  799,  799 }}, DOWNWARDS_THRUST },
+            { {{  800,  799 }}, UPWARDS_THRUST },
+            { {{  799,  800 }}, UPWARDS_THRUST },
+            { {{  800,  800 }}, UPWARDS_THRUST },
+            { {{  801,  801 }}, UPWARDS_THRUST },
+            { {{ -799, -799 }}, DOWNWARDS_THRUST },
+            { {{ -800, -799 }}, UPWARDS_THRUST },
+            { {{ -799, -800 }}, UPWARDS_THRUST },
+            { {{ -800, -800 }}, UPWARDS_THRUST },
+            { {{ -801, -801 }}, UPWARDS_THRUST }
     };
     uint8_t testIterationCount = sizeof(inclinationExpectations) / sizeof(inclinationExpectation_t);
 
@@ -105,18 +105,18 @@ typedef struct inclinationAngleExpectations_s {
 TEST(AltitudeHoldTest, TestCalculateTiltAngle)
 {
     inclinationAngleExpectations_t inclinationAngleExpectations[] = {
-        { {0, 0}, 0},
-        { {1, 0}, 1},
-        { {0, 1}, 1},
-        { {0, -1}, 1},
-        { {-1, 0}, 1},
-        { {-1, -2}, 2},
-        { {-2, -1}, 2},
-        { {1, 2}, 2},
-        { {2, 1}, 2}
+        { {{ 0,  0}}, 0},
+        { {{ 1,  0}}, 1},
+        { {{ 0,  1}}, 1},
+        { {{ 0, -1}}, 1},
+        { {{-1,  0}}, 1},
+        { {{-1, -2}}, 2},
+        { {{-2, -1}}, 2},
+        { {{ 1,  2}}, 2},
+        { {{ 2,  1}}, 2}
     };
 
-    rollAndPitchInclination_t inclination = {0, 0};
+    rollAndPitchInclination_t inclination = {{0, 0}};
     uint16_t tilt_angle = calculateTiltAngle(&inclination);
     EXPECT_EQ(tilt_angle, 0);
 

src/test/unit/io_serial_unittest.cc

@@ -0,0 +1,73 @@
+/*
+ * This file is part of Cleanflight.
+ *
+ * Cleanflight is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Cleanflight is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Cleanflight.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#include <limits.h>
+
+extern "C" {
+    #include "platform.h"
+
+    #include "drivers/serial.h"
+    #include "io/serial.h"
+
+    void serialInit(serialConfig_t *initialSerialConfig);
+
+}
+
+#include "unittest_macros.h"
+#include "gtest/gtest.h"
+
+//uint32_t testFeatureMask = 0;
+uint8_t cliMode = 0;
+
+TEST(IoSerialTest, TestFindPortConfig)
+{
+    // given
+    serialConfig_t serialConfig;
+    memset(&serialConfig, 0, sizeof(serialConfig));
+
+    // when
+    serialInit(&serialConfig);
+
+    // and
+    serialPortConfig_t *portConfig = findSerialPortConfig(FUNCTION_MSP);
+
+    // then
+    EXPECT_EQ(NULL, portConfig);
+}
+
+
+// STUBS
+
+extern "C" {
+//
+//bool feature(uint32_t mask) {
+//    return (mask & testFeatureMask);
+//}s
+
+void delay(uint32_t) {}
+void cliEnter(serialPort_t *) {}
+void cliProcess(void) {}
+bool isSerialTransmitBufferEmpty(serialPort_t *) {
+    return true;
+}
+void mspProcess(void) {}
+void systemResetToBootloader(void) {}
+
+}

src/test/unit/ledstrip_unittest.cc

@@ -418,6 +418,6 @@ int scaleRange(int x, int srcMin, int srcMax, int destMin, int destMax) {
     return 0;
 }
 
-bool failsafeHasTimerElapsed(void) { }
+bool failsafeHasTimerElapsed(void) { return false; }
 
 }