| 29 | using namespace donut; |
| 30 | |
| 31 | void test_circular_buffer() |
| 32 | { |
| 33 | core::circular_buffer<int, 5> cbuf; |
| 34 | |
| 35 | CHECK(cbuf.empty() && (cbuf.size() == 0) && (cbuf.capacity() == 5)); |
| 36 | |
| 37 | cbuf.push_back(1); |
| 38 | cbuf.push_back(2); |
| 39 | cbuf.push_back(3); |
| 40 | CHECK((!cbuf.empty()) && (!cbuf.full()) && (cbuf.size() == 3) && (cbuf.capacity() == 5)); |
| 41 | CHECK((cbuf[0] == 1) && (cbuf[1] == 2) && (cbuf[2] == 3)); |
| 42 | CHECK((cbuf.front() == 1) && (cbuf.back() == 3)); |
| 43 | |
| 44 | cbuf.pop_front(); |
| 45 | CHECK((!cbuf.empty()) && (!cbuf.full()) && (cbuf.size() == 2) && (cbuf.capacity() == 5)); |
| 46 | CHECK((cbuf[0] == 2) && (cbuf[1] == 3)); |
| 47 | CHECK((cbuf.front() == 2) && (cbuf.back() == 3)); |
| 48 | |
| 49 | cbuf.pop_back(); |
| 50 | CHECK((!cbuf.empty()) && (!cbuf.full()) && (cbuf.size() == 1) && (cbuf.capacity() == 5)); |
| 51 | CHECK((cbuf[0] == 2)); |
| 52 | CHECK((cbuf.front() == 2) && (cbuf.back() == 2)); |
| 53 | |
| 54 | cbuf.clear(); |
| 55 | CHECK(cbuf.empty() && (!cbuf.full()) && (cbuf.size() == 0) && (cbuf.capacity() == 5)); |
| 56 | |
| 57 | cbuf.push_back(1); |
| 58 | cbuf.push_back(2); |
| 59 | cbuf.push_back(3); |
| 60 | cbuf.push_back(4); |
| 61 | cbuf.push_back(5); |
| 62 | CHECK((!cbuf.empty()) && (cbuf.full()) && (cbuf.size() == 5) && (cbuf.capacity() == 5)); |
| 63 | |
| 64 | cbuf.push_back(6); |
| 65 | CHECK((!cbuf.empty()) && (cbuf.full()) && (cbuf.size() == 5) && (cbuf.capacity() == 5)); |
| 66 | CHECK((cbuf[0] == 2) && (cbuf[1] == 3) && (cbuf[2] == 4) && (cbuf[3] == 5) && (cbuf[4] == 6)); |
| 67 | |
| 68 | cbuf.push_back(7); |
| 69 | CHECK((!cbuf.empty()) && (cbuf.full()) && (cbuf.size() == 5) && (cbuf.capacity() == 5)); |
| 70 | CHECK((cbuf[0] == 3) && (cbuf[1] == 4) && (cbuf[2] == 5) && (cbuf[3] == 6) && (cbuf[4] == 7)); |
| 71 | |
| 72 | cbuf.push_back(8); |
| 73 | CHECK((!cbuf.empty()) && (cbuf.full()) && (cbuf.size() == 5) && (cbuf.capacity() == 5)); |
| 74 | CHECK((cbuf[0] == 4) && (cbuf[1] == 5) && (cbuf[2] == 6) && (cbuf[3] == 7) && (cbuf[4] == 8)); |
| 75 | |
| 76 | cbuf.push_back(9); |
| 77 | CHECK((!cbuf.empty()) && (cbuf.full()) && (cbuf.size() == 5) && (cbuf.capacity() == 5)); |
| 78 | CHECK((cbuf[0] == 5) && (cbuf[1] == 6) && (cbuf[2] == 7) && (cbuf[3] == 8) && (cbuf[4] == 9)); |
| 79 | |
| 80 | cbuf.push_back(10); |
| 81 | CHECK((!cbuf.empty()) && (cbuf.full()) && (cbuf.size() == 5) && (cbuf.capacity() == 5)); |
| 82 | CHECK((cbuf[0] == 6) && (cbuf[1] == 7) && (cbuf[2] == 8) && (cbuf[3] == 9) && (cbuf[4] == 10)); |
| 83 | |
| 84 | cbuf.push_back(11); |
| 85 | CHECK((!cbuf.empty()) && (cbuf.full()) && (cbuf.size() == 5) && (cbuf.capacity() == 5)); |
| 86 | CHECK((cbuf[0] == 7) && (cbuf[1] == 8) && (cbuf[2] == 9) && (cbuf[3] == 10) && (cbuf[4] == 11)); |
| 87 | } |
| 88 | |