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add unit test for fifo write_n and read_n

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hathach 2020-05-14 11:59:51 +07:00
parent 7a5c0ee802
commit f445274634
1 changed files with 58 additions and 0 deletions
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58
test/test/test_fifo.c
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@ -54,6 +54,64 @@ void test_normal(void)
}
}
void test_read_n(void)
{
// prepare data
uint8_t data[20];
for(int i=0; i<sizeof(data); i++) data[i] = i;
for(uint8_t i=0; i < FIFO_SIZE; i++) tu_fifo_write(&ff, data+i);
uint8_t rd[10];
uint16_t rd_count;
// case 1: Read index + count < depth
// read 0 -> 5
rd_count = tu_fifo_read_n(&ff, rd, 5);
TEST_ASSERT_EQUAL( 5, rd_count );
TEST_ASSERT_EQUAL_MEMORY( data, rd, rd_count ); // 0 -> 4
// case 2: Read index + count > depth
// write 10, 11, 12
tu_fifo_write(&ff, data+10);
tu_fifo_write(&ff, data+11);
tu_fifo_write(&ff, data+12);
rd_count = tu_fifo_read_n(&ff, rd, 7);
TEST_ASSERT_EQUAL( 7, rd_count );
TEST_ASSERT_EQUAL_MEMORY( data+5, rd, rd_count ); // 5 -> 11
// Should only read until empty
TEST_ASSERT_EQUAL( 1, tu_fifo_read_n(&ff, rd, 100) );
}
void test_write_n(void)
{
// prepare data
uint8_t data[20];
for(int i=0; i<sizeof(data); i++) data[i] = i;
// case 1: wr + count < depth
tu_fifo_write_n(&ff, data, 8); // wr = 8, count = 8
uint8_t rd[10];
uint16_t rd_count;
rd_count = tu_fifo_read_n(&ff, rd, 5); // wr = 8, count = 3
TEST_ASSERT_EQUAL( 5, rd_count );
TEST_ASSERT_EQUAL_MEMORY( data, rd, rd_count ); // 0 -> 4
// case 2: wr + count > depth
tu_fifo_write_n(&ff, data+8, 6); // wr = 3, count = 9
for(rd_count=0; rd_count<7; rd_count++) tu_fifo_read(&ff, rd+rd_count); // wr = 3, count = 2
TEST_ASSERT_EQUAL_MEMORY( data+5, rd, rd_count); // 5 -> 11
TEST_ASSERT_EQUAL(2, tu_fifo_count(&ff));
}
void test_peek(void)
{
uint8_t temp;