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#include "unity.h"
#include "routing.h"
#define IP(a, b, c, d) (a << 24 | b << 16 | c << 8 | d)
struct nodeid self;
void setUp() {
self = (struct nodeid){.inner={ 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000 }};
routing_init(&self);
}
void test_deny_self_add() {
routing_flush();
struct entry* entry;
if(!routing_offer(&self, &entry))
TEST_PASS();
TEST_FAIL();
}
void test_can_find_added() {
routing_flush();
// The address we are going to store
struct addr addr = (struct addr){.ip = IP(128,0,0,1), .port = 0};
// Make a nodeid that is one bit different
struct nodeid new = self;
new.inner[4] += 1;
struct entry* entry;
TEST_ASSERT_TRUE_MESSAGE(routing_offer(&new, &entry), "Did not accept new entry");
new.inner[4] += 1;
TEST_ASSERT_TRUE_MESSAGE(routing_offer(&new, &entry), "Did not accept new entry");
// Set the entries
entry->addr = addr;
entry->last = time(NULL);
// Ask for 3 nodes
struct entry *out[3] = {0};
size_t n = routing_closest(&new, 3, out);
// Since we only put 2 in, we should get 2 out
TEST_ASSERT_EQUAL_INT(2, n);
TEST_ASSERT_EQUAL_MEMORY(&addr, &out[0]->addr, sizeof(struct addr));
TEST_ASSERT_EQUAL_MEMORY(&new, &out[0]->id, sizeof(struct nodeid));
}
void test_discard_offer_when_bucket_full() {
routing_flush();
// The address we are going to store
struct addr addr = (struct addr){.ip = IP(128,0,0,1), .port = 0};
struct nodeid new = self;
// Flip the top bit of the id to go into the low resolution bucket
new.inner[0] ^= 0x80000000;
// Fill up the bucket with entries
for(uint8_t i = 0; i < 8; i++) {
struct entry* entry;
TEST_ASSERT_TRUE_MESSAGE(routing_offer(&new, &entry), "Did not accept new entry");
// Set the entries
entry->addr = addr;
entry->last = time(NULL);
new.inner[4] += 1;
}
struct entry* entry;
TEST_ASSERT_FALSE_MESSAGE(routing_offer(&new, &entry), "Accepted entry when bucket was full");
}
void test_discard_offer_when_nodeid_added_twice() {
routing_flush();
// The address we are going to store
struct addr addr = (struct addr){.ip = IP(128,0,0,1), .port = 0};
struct nodeid new = self;
new.inner[4] ^= 0x00000001;
struct entry* entry;
TEST_ASSERT_TRUE(routing_offer(&new, &entry));
entry->addr = addr;
entry->last = time(NULL);
bool accept = routing_offer(&new, &entry);
TEST_ASSERT_FALSE_MESSAGE(accept, "Accepted entry when bucket was full");
}
void test_interested_when_space_in_bucket() {
routing_flush();
struct nodeid new = self;
new.inner[4] ^= 0x00000001;
bool interest = routing_interested(&new);
TEST_ASSERT_TRUE_MESSAGE(interest, "Was not interested in node");
}
void test_not_interested_when_nodeid_in_table() {
routing_flush();
struct nodeid new = self;
new.inner[4] ^= 0x00000001;
struct entry* entry;
TEST_ASSERT_TRUE(routing_offer(&new, &entry));
entry->addr = (struct addr){.ip = IP(128,0,0,1), .port = 0};
entry->last = time(NULL);
bool interest = routing_interested(&new);
TEST_ASSERT_FALSE_MESSAGE(interest, "Was interested in node");
}
void test_not_interested_when_bucket_is_full() {
routing_flush();
// The address we are going to store
struct addr addr = (struct addr){.ip = IP(128,0,0,1), .port = 0};
struct nodeid new = self;
// Flip the top bit of the id to go into the low resolution bucket
new.inner[0] ^= 0x80000000;
// Fill up the bucket with entries
for(uint8_t i = 0; i < 8; i++) {
struct entry* entry;
TEST_ASSERT_TRUE_MESSAGE(routing_offer(&new, &entry), "Did not accept new entry");
// Set the entries
entry->addr = addr;
entry->last = time(NULL);
new.inner[4] += 1;
}
TEST_ASSERT_FALSE_MESSAGE(routing_interested(&new), "Still interested when bucket was full");
}
void test_lowest_ts_is_oldest() {
routing_flush();
// The address we are going to store
struct addr addr = (struct addr){.ip = IP(128,0,0,1), .port = 0};
struct nodeid new = self;
// Flip the top bit of the id to go into the low resolution bucket
new.inner_b[0] ^= 0x80;
// Fill up the bucket with entries
for(uint8_t i = 0; i < 2; i++) {
struct entry* entry;
TEST_ASSERT_TRUE_MESSAGE(routing_offer(&new, &entry), "Did not accept new entry");
// Set the entries
entry->id = new;
entry->addr = addr;
// Invert the timestamps to make the last one have lowest timestamp
entry->last = 2-i;
new.inner_b[19] += 1;
}
struct entry* dest = NULL;
routing_oldest(&dest);
TEST_ASSERT_NOT_NULL(dest);
TEST_ASSERT_EQUAL(1, dest->id.inner_b[19]);
}
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