me dumb and fixed wire tests, though there's an anomaly in compilation

Author: lsaca05

SampleProjects/TestSomething/test/wire.cpp

@@ -3,6 +3,7 @@
 #include <vector>
 
 #include <Wire.h>
+using namespace std;
 
 unittest(beginAsMaster) {
     Wire.begin();
@@ -27,19 +28,19 @@ unittest(getSlaveAddress) {
 unittest(begin_write_end) {
     Wire.begin();
     Wire.beginTransmission(14);
-    assertEqual(14, txAddress);
+    assertEqual(14, Wire.getAddress());
 
-    assertTrue(Wire.getTxBuffer().empty());
+    assertTrue(Wire.isTxBufferEmpty());
 
     Wire.write(0x07);
     Wire.write(0x0E);
-    assertEqual(0x07, getTxBuffer().at(0));
-    assertEqual(0x0E, getTxBuffer().at(1));
+    assertEqual(0x07, Wire.getTxBufferElement(0));
+    assertEqual(0x0E, Wire.getTxBufferElement(1));
 
     Wire.endTransmission(true);
-    assertTrue(txBuffer.empty());
-    assertEqual(0x07, getWriteData.at(0));
-    assertEqual(0x0E, getWriteData.at(1));
+    assertTrue(Wire.isTxBufferEmpty());
+    assertEqual(0x07, Wire.getWriteDataElement(0));
+    assertEqual(0x0E, Wire.getWriteDataElement(1));
 }
 
 // want to add read test, though it seems to depend on requestFrom

cpp/arduino/Wire.h

@@ -6,6 +6,7 @@
 #include <cassert>
 #include "Stream.h"
 
+using std::vector;
 
 // Some inspiration taken from https://github.com/arduino/ArduinoCore-megaavr/blob/d2a81093ba66d22dbda14c30d146c231c5910734/libraries/Wire/src/Wire.cpp
 class TwoWire : public ObservableDataStream
@@ -161,8 +162,9 @@ class TwoWire : public ObservableDataStream
   // testing methods
   bool getIsMaster() { return isMaster; }
   int getAddress() { return txAddress; }
-  vector<uint8_t> getTxBuffer() { return txBuffer; }
-  vector<uint8_t> getWriteData() { return writeData; }
+  bool isTxBufferEmpty() { return txBuffer.empty(); }
+  uint8_t getTxBufferElement(int index) { return txBuffer.at(index); }
+  uint8_t getWriteDataElement(int index) { return writeData.at(index); }
 
 private:
   bool isMaster = false;