70 lines
1.7 KiB
C
70 lines
1.7 KiB
C
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#include <assert.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <layer2/packet_queue.h>
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int main(void)
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{
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packet_queue_t queue;
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layer2_packet_header_t header = {0};
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uint8_t *data;
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size_t data_len;
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// initialize
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packet_queue_init(&queue);
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// add a first packet
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header.tx_seq_nr = 0;
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data_len = 2;
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data = malloc(data_len);
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strncpy((char*)data, "A", data_len);
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assert(packet_queue_add(&queue, &header, data, data_len));
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assert(packet_queue_get_used_space(&queue) == 1);
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assert(packet_queue_get_free_space(&queue) == PACKET_QUEUE_SIZE-2);
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// add more packets until the queue is / should be full
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for(size_t i = 0; i < PACKET_QUEUE_SIZE-2; i++) {
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char s[2];
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s[0] = 'A' + i + 1;
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s[1] = 0;
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header.tx_seq_nr = i+1;
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data_len = 2;
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data = malloc(data_len);
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strncpy((char*)data, s, data_len);
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assert(packet_queue_add(&queue, &header, data, data_len));
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assert(packet_queue_get_used_space(&queue) == i+2);
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assert(packet_queue_get_free_space(&queue) == PACKET_QUEUE_SIZE-3-i);
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}
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// adding another packet should fail now
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assert(!packet_queue_add(&queue, &header, data, data_len));
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// delete the first five packets
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packet_queue_delete(&queue, 5);
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assert(packet_queue_get_free_space(&queue) == 5);
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// now the sequence number of the first packet should be 5
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const packet_queue_entry_t *entry = packet_queue_get(&queue, 0);
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assert(entry->header.tx_seq_nr == 5);
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// try to access the 10th and 11th packet, which are the last existing and
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// the first nonexisting packets
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assert(packet_queue_get(&queue, 9) != NULL);
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assert(packet_queue_get(&queue, 10) == NULL);
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packet_queue_destroy(&queue);
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printf("Test completed successfully!\n");
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}
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