added single byte test

Author: BlackstoneEngineering

TESTS/API/I2C/I2C.cpp

@@ -38,7 +38,7 @@ void test_lm75b(){
 // Template to write arbitrary data to arbitrary address and check the data is written correctly
 template<PinName sda, PinName scl,int size_of_data, int address>
 void flash_WR(){
-    I2CEeprom memory(sda,scl,address,32,0);
+    I2CEeprom memory(sda,scl,MBED_CONF_APP_I2C_EEPROM_ADDR,32,0);
     int num_read = 0;
     int num_written = 0;
     char test_string[size_of_data] = {0};
@@ -57,47 +57,20 @@ void flash_WR(){
 
 }
 
-//// A test to write the EEprom
-//void test_eeprom_W(){
-//    I2CEeprom memory(sda,scl, address, 32, 0);
-//    int num_bytes = 0;
-//    num_bytes = memory.write(addr,I2C_TEST_STRING, I2C_TEST_STRING_MAX);
-//    printf("\r\n****\r\n WRITE: Num bytes written = `%d`\r\n****\r\n",num_bytes);
-//	TEST_ASSERT_EQUAL_MESSAGE(num_bytes, I2C_TEST_STRING_MAX,"All data not written."); // check data was written
-//}
-//
-//
-//// A test to read the EEprom
-//void test_eeprom_R(){
-//    I2CEeprom memory(MBED_CONF_APP_I2C_SDA,MBED_CONF_APP_I2C_SCL, MBED_CONF_APP_I2C_EEPROM_ADDR, 32, 0);
-//	char read_string[I2C_TEST_STRING_MAX] = {0};
-//    int read_bytes = 0;
-//    read_bytes = memory.read(addr,read_string,I2C_TEST_STRING_MAX);
-//
-//    printf("\r\n****\r\nREAD: Num bytes read = `%d`, string read = `%s`\r\n****\r\n",read_bytes,read_string);
-//    TEST_ASSERT_EQUAL_MESSAGE(read_bytes, I2C_TEST_STRING_MAX,"Failed to read the correct number of bytes.");
-//    TEST_ASSERT_EQUAL_STRING_MESSAGE(I2C_TEST_STRING,read_string,"data read does not match data written! bad EEPROM?"); // check data integrity
-//    TEST_ASSERT_MESSAGE(strcmp(I2C_TEST_STRING,read_string) == 0,"String written does not match string read"); // double check strings with strcmp
-//}
-//
-//// A test to Write then read the eeprom
-// void test_eeprom_WR(){
-//    int address = rand()%250000;
-//    I2CEeprom memory(MBED_CONF_APP_I2C_SDA,MBED_CONF_APP_I2C_SCL, MBED_CONF_APP_I2C_EEPROM_ADDR, 32, 0);
-//    int read_bytes = 0;
-//    int write_bytes = 0;
-//    char read_string[I2C_TEST_STRING_MAX] = {0};
-//
-//    write_bytes = memory.write(address,I2C_TEST_STRING,I2C_TEST_STRING_MAX);
-//    read_bytes  = memory.read(address,read_string,I2C_TEST_STRING_MAX);
-//
-//    printf("\r\n*****\r\nWRITE READ: Bytes Written = `%d`\r\nBytes Read = `%d` \r\nString Written = `%s`\r\nString Read = `%s`\r\n*****\r\n",write_bytes,read_bytes,I2C_TEST_STRING,read_string);
-//
-//    TEST_ASSERT_MESSAGE(write_bytes == read_bytes,"Number of bytes written does not match number of bytes read");
-//    TEST_ASSERT_EQUAL_STRING_MESSAGE(I2C_TEST_STRING,read_string,"String read does not match string written");
-//    TEST_ASSERT_MESSAGE(strcmp(I2C_TEST_STRING,read_string) == 0,"String written does not match string read"); // double check strings with strcmp
-//
-// }
+// Test single byte R/W
+template<PinName sda, PinName scl, int address>
+void single_byte_WR(){
+    I2CEeprom memory(sda,scl,MBED_CONF_APP_I2C_EEPROM_ADDR,32,0);
+    char test = 'A' + rand()%26;
+    char read;
+    memory.write(address,test);
+    memory.read(address,read);
+    printf("\r\n****\r\n Read byte = %d \r\n Written Byte = %d \r\n****\r\n",&read,&test);
+
+    TEST_ASSERT_EQUAL_MESSAGE(test,read,"Character Read does not equal character written!");
+    TEST_ASSERT_MESSAGE(test == read, "character written does not match character read")
+
+}
 
 utest::v1::status_t test_setup(const size_t number_of_cases) {
     // Setup Greentea using a reasonable timeout in seconds
@@ -114,12 +87,10 @@ utest::v1::status_t greentea_failure_handler(const Case *const source, const fai
 // Test cases
 Case cases[] = {
     Case("I2C -  LM75B Temperature Read",test_lm75b<MBED_CONF_APP_I2C_SDA,MBED_CONF_APP_I2C_SCL,25,20>,greentea_failure_handler),
-	//Case("I2C -  EEProm Write",test_eeprom_W,greentea_failure_handler),
-	//Case("I2C -  EEProm Read",test_eeprom_R,greentea_failure_handler),
-	//Case("I2C -  EEProm WR",test_eeprom_WR,greentea_failure_handler),
     //Case("I2C -  EEProm WR 2Bytes",flash_WR<MBED_CONF_APP_I2C_SDA,MBED_CONF_APP_I2C_SCL,2,1>,greentea_failure_handler),
     Case("I2C -  EEProm WR 10Bytes",flash_WR<MBED_CONF_APP_I2C_SDA,MBED_CONF_APP_I2C_SCL,10,1>,greentea_failure_handler),
     Case("I2C -  EEProm WR 100 Bytes",flash_WR<MBED_CONF_APP_I2C_SDA,MBED_CONF_APP_I2C_SCL,100,1>,greentea_failure_handler),
+    Case("I2C -  EEProm WR 100 Bytes",single_byte_WR<MBED_CONF_APP_I2C_SDA,MBED_CONF_APP_I2C_SCL,1>,greentea_failure_handler),
 };
 
 Specification specification(test_setup, cases);