updated I2C tests to use LM75B instead of TMP102 sensor

LM75B.lib

@@ -0,0 +1 @@
+https://developer.mbed.org/users/neilt6/code/LM75B/#7ac462ba84ac

TESTS/API/I2C/I2C.cpp

@@ -3,7 +3,7 @@
 #include "unity.h"
 #include "utest.h"
 #include "rtos.h"
-#include "TMP102.h"
+#include "LM75B.h"
 #include <I2CEeprom.h>
 
 using namespace utest::v1;
@@ -12,29 +12,33 @@ using namespace utest::v1;
 
 const char *convBool(bool value) { return value ? "true" : "false"; }
 
-#define I2C_SENTINAL 'Z'
+#define I2C_SENTINAL 'Z' //TODO: make this a random letter or string
 #define TMP102_ADDR 0x90
 #define EEPROM_ADDR 0xA0
 
 // a test to see if the temperature can be read. A I2C failure returns a 0
 void test_tmp102(){
-    TMP102 temperature(I2C_SDA, I2C_SCL, TMP102_ADDR); //A0 pin is connected to ground
-	TEST_ASSERT(0 != temperature.read());
+    //TMP102 temperature(I2C_SDA, I2C_SCL, TMP102_ADDR); //A0 pin is connected to ground
+    LM75B  temperature(I2C_SDA, I2C_SCL);
+	TEST_ASSERT_MESSAGE(0 != temperature.open(),"Failed to open sensor");
+    TEST_ASSERT_MESSAGE(NULL != temperature.temp(),"Invalid value NULL returned");
+    TEST_ASSERT_MESSAGE(50 > temperature.temp(),"Its too Hot (>10C), Faulty Sensor?");
+    TEST_ASSERT_MESSAGE(0 < temperature.temp(),"Its Too Cold (<0C), Faulty Sensor?");
 }
 
 // A test to write the EEprom
 void test_eeprom_W(){
     I2CEeprom memory(I2C_SDA,I2C_SCL, EEPROM_ADDR, 32, 0);
-	TEST_ASSERT(memory.write(1, I2C_SENTINAL) == 1); // check data was written
+	TEST_ASSERT_MESSAGE(memory.write(1, I2C_SENTINAL) == 1,"data not written, error with EEPROM?"); // check data was written
 }
 
 
 // A test to read the EEprom
 void test_eeprom_R(){
     I2CEeprom memory(I2C_SDA,I2C_SCL, EEPROM_ADDR, 32, 0);
 	char value = 'a';
-    TEST_ASSERT(memory.read(1,value) == 1); // check data was read
-    TEST_ASSERT(I2C_SENTINAL == value); // check data integrity
+    TEST_ASSERT_MESSAGE(memory.read(1,value) == 1,"data failed to be read correctly"); // check data was read
+    TEST_ASSERT_MESSAGE(I2C_SENTINAL == value,"data read does not match data written! bad EEPROM?"); // check data integrity
 }
 
 // A test to Write then read the eeprom