END_TEST
START_TEST (test_find_common_prefix_middle)
{
node * n = r3_tree_create(10);
edge * e = r3_edge_createl(zstrdup("/foo/{slug}/hate"), sizeof("/foo/{slug}/hate")-1, NULL);
r3_node_append_edge(n,e);
int prefix_len;
edge *ret_edge = NULL;
char *errstr = NULL;
errstr = NULL;
ret_edge = r3_node_find_common_prefix(n, "/foo/{slug}/bar", sizeof("/foo/{slug}/bar")-1, &prefix_len, &errstr);
ck_assert(ret_edge);
ck_assert_int_eq(prefix_len, 12);
SAFE_FREE(errstr);
errstr = NULL;
ret_edge = r3_node_find_common_prefix(n, "/fo/{slug}/bar", sizeof("/fo/{slug}/bar")-1, &prefix_len, &errstr);
ck_assert(ret_edge);
ck_assert_int_eq(prefix_len, 3);
SAFE_FREE(errstr);
r3_tree_free(n);
}
/**
* Connect two node objects, and create an edge object between them.
*/
edge * r3_node_connectl(node * n, const char * pat, int len, int dupl, node *child) {
// find the same sub-pattern, if it does not exist, create one
edge * e;
e = r3_node_find_edge(n, pat, len);
if (e) {
return e;
}
if (dupl) {
pat = zstrndup(pat, len);
}
e = r3_edge_createl(pat, len, child);
CHECK_PTR(e);
r3_node_append_edge(n, e);
return e;
}
END_TEST
START_TEST (test_find_common_prefix_same_pattern2)
{
node * n = r3_tree_create(10);
edge * e = r3_edge_createl(zstrdup("{slug:xxx}/hate"), sizeof("{slug:xxx}/hate")-1, NULL);
r3_node_append_edge(n,e);
int prefix_len;
edge *ret_edge = NULL;
prefix_len = 0;
ret_edge = r3_node_find_common_prefix(n, "{slug:yyy}/hate", sizeof("{slug:yyy}/hate")-1, &prefix_len, NULL);
ck_assert(ret_edge);
ck_assert_int_eq(prefix_len, 0);
r3_tree_free(n);
}
/**
* branch the edge pattern at "dl" offset,
* insert a dummy child between the edges.
*
*
* A -> [prefix..suffix] -> B
* A -> [prefix] -> B -> [suffix] -> New Child (Copy Data, Edges from B)
*
*/
node * r3_edge_branch(edge *e, int dl) {
node *new_child;
edge *e1;
char * s1 = e->pattern + dl;
int s1_len = 0;
// the suffix edge of the leaf
new_child = r3_tree_create(3);
s1_len = e->pattern_len - dl;
e1 = r3_edge_createl(zstrndup(s1, s1_len), s1_len, new_child);
// Migrate the child edges to the new edge we just created.
for ( int i = 0 ; i < e->child->edge_len ; i++ ) {
r3_node_append_edge(new_child, e->child->edges[i]);
e->child->edges[i] = NULL;
}
e->child->edge_len = 0;
// Migrate the child routes
for ( int i = 0 ; i < e->child->route_len ; i++ ) {
r3_node_append_route(new_child, e->child->routes[i]);
e->child->routes[i] = NULL;
}
e->child->route_len = 0;
// Migrate the endpoint
new_child->endpoint = e->child->endpoint;
e->child->endpoint = 0; // reset endpoint
// Migrate the data
new_child->data = e->child->data; // copy data pointer
e->child->data = NULL;
r3_node_append_edge(e->child, e1);
// truncate the original edge pattern
char *oldpattern = e->pattern;
e->pattern = zstrndup(e->pattern, dl);
e->pattern_len = dl;
zfree(oldpattern);
return new_child;
}
