fix according to #13 (comment)

Author: nerdyscout

src/arduino/SPI.h

@@ -70,10 +70,20 @@
 #endif
 
 class SPISettings {
+ private:
+  uint32_t clock;
+  uint8_t bitOrder;
+  uint8_t dataMode;
+
  public:
-  SPISettings(uint32_t clock, uint8_t bitOrder, uint8_t dataMode) {}
+  SPISettings(uint32_t clock, uint8_t bitOrder, uint8_t dataMode): clock(clock), bitOrder(bitOrder), dataMode(dataMode) {}
   SPISettings() { SPISettings(4000000, MSBFIRST, SPI_MODE0); }
   friend class SPIClass;
+
+  bool operator==(const SPISettings &other) const {
+    return (clock == other.clock) && (bitOrder == other.bitOrder) &&
+           (dataMode == other.dataMode);
+  }
 };
 
 class SPIClass {

test/test_spi.h

@@ -11,21 +11,21 @@ void test_basics(void) {
 
   When(OverloadedMethod(ArduinoFake(SPI), begin, void(void))).AlwaysReturn();
   When(OverloadedMethod(ArduinoFake(SPI), end, void(void))).AlwaysReturn();
-//  When(OverloadedMethod(ArduinoFake(SPI), beginTransaction, void(SPISettings)).Using(settings)).AlwaysReturn();
+  When(OverloadedMethod(ArduinoFake(SPI), beginTransaction, void(SPISettings)).Using(settings)).AlwaysReturn();
   When(OverloadedMethod(ArduinoFake(SPI), endTransaction, void(void))).AlwaysReturn();
   When(OverloadedMethod(ArduinoFake(SPI), transfer, uint8_t(uint8_t)).Using(buffer1)).AlwaysReturn();
 //  When(OverloadedMethod(ArduinoFake(SPI), transfer, void(void*, size_t)).Using(buffer2,sizeof(buffer2))).AlwaysReturn();
 
   SPI.begin();
-//  SPI.beginTransaction(settings);
+  SPI.beginTransaction(settings);
   SPI.transfer(0x01);
 //  SPI.transfer(buffer2, sizeof(buffer2));
   SPI.endTransaction();
   SPI.end();
 
   Verify(OverloadedMethod(ArduinoFake(SPI), begin, void(void))).Once();
   Verify(OverloadedMethod(ArduinoFake(SPI), end, void(void))).Once();
-//  Verify(OverloadedMethod(ArduinoFake(SPI), beginTransaction, void(SPISettings))).Once();
+  Verify(OverloadedMethod(ArduinoFake(SPI), beginTransaction, void(SPISettings))).Once();
   Verify(OverloadedMethod(ArduinoFake(SPI), endTransaction, void(void))).Once();
   Verify(OverloadedMethod(ArduinoFake(SPI), transfer, uint8_t(uint8_t))).Once();
 //  Verify(OverloadedMethod(ArduinoFake(SPI), transfer, void(void*, size_t))).Once();