TEST(CircularBufferSingle, TestRewind)
{
const float data[4] = {1,2,3,4};
float out[4] = {0, 0, 0, 0};
float expected[4] = {3, 4, 3, 4};
CircularBuffer *buffer = CircularBufferInit(7);
CircularBufferWrite(buffer, data, 4);
CircularBufferRead(buffer, out, 4);
CircularBufferRewind(buffer, 2);
CircularBufferRead(buffer, out, 2);
CircularBufferFlush(buffer);
CircularBufferFree(buffer);
for (unsigned i = 0; i < 4; ++i)
{
ASSERT_FLOAT_EQ(out[i], expected[i]);
}
}
TEST(CircularBufferSingle, TestWrap)
{
const float data[4] = {1,2,3,4};
float out[4] = {0,0,0,0};
CircularBuffer *buffer = CircularBufferInit(7);
CircularBufferWrite(buffer, data, 4);
CircularBufferWrite(buffer, data, 4);
CircularBufferWrite(buffer, data, 4);
CircularBufferRead(buffer, out, 4);
CircularBufferRead(buffer, out, 4);
CircularBufferRead(buffer, out, 4);
CircularBufferFree(buffer);
for (unsigned i = 0; i < 4; ++i)
{
ASSERT_FLOAT_EQ(out[i], data[i]);
}
}
TEST(CircularBufferSingle, TestError)
{
const float data[8] = {1, 2, 3, 4, 5, 6, 7, 8};
float out[4];
CircularBuffer* buffer = CircularBufferInit(8);
CircularBufferWrite(buffer, data, 4);
ASSERT_EQ(VALUE_ERROR, CircularBufferRead(buffer, out, 5));
CircularBufferFlush(buffer);
CircularBufferWrite(buffer, data, 8);
ASSERT_EQ(VALUE_ERROR, CircularBufferWrite(buffer, data, 1));
}
TEST(CircularBufferSingle, TestCount)
{
const float data[8] = {1, 2, 3, 4, 5, 6, 7, 8};
float out[4];
CircularBuffer* buffer = CircularBufferInit(8);
CircularBufferWrite(buffer, data, 4);
ASSERT_EQ(4, CircularBufferCount(buffer));
CircularBufferRead(buffer, out, 2);
ASSERT_EQ(2, CircularBufferCount(buffer));
CircularBufferFlush(buffer);
ASSERT_EQ(0, CircularBufferCount(buffer));
}
/**
* @details
*/
signed char __hal_UARTReceiveByte(enum PERIPHERAL peripheral, unsigned char * readValue)
{
// If USCI is defined, include the following code.
#if defined(__MCU_MSP430_USCI)
// Check if we are using the USCIA0 peripheral.
if (peripheral == USCIA0)
{
// Read value from receive circular buffer.
return CircularBufferRead(&USCIA0Buffer.rx, readValue);
}
#endif
// NOTE: This return statement should never be reached. If it is, return that
// the read was unsuccessful as an unknown event has occurred.
return 0;
}
int main(int argc, char *argv[])
{
CircularBuffer* que;
unsigned int a = 0,*p=NULL;
int isEmpty;
p = (unsigned int *)calloc(188,sizeof(char));
CircularBufferInit(&que, BUFFER_SIZE);
do{
a += 1;
}while(!CircularBufferWrite(que, &a));
do {
isEmpty = CircularBufferRead(que, p);
printf("%02d ", *p);
} while (!isEmpty);
printf("\n");
free(p);
free(que);
return 0;
}