c-ipfs/test/merkledag/test_merkledag.h
2016-12-07 11:53:17 -05:00

200 lines
4.9 KiB
C

#include "ipfs/merkledag/merkledag.h"
#include "ipfs/node/node.h"
#include "../test_helper.h"
int test_merkledag_get_data() {
int retVal = 0;
// create a fresh repo
retVal = drop_and_build_repository("/tmp/.ipfs");
if (retVal == 0)
return 0;
// open the fs repo
struct RepoConfig* repo_config = NULL;
struct FSRepo* fs_repo;
const char* path = "/tmp/.ipfs";
// create the struct
retVal = ipfs_repo_fsrepo_new((char*)path, repo_config, &fs_repo);
if (retVal == 0)
return 0;
// open the repository and read the config file
retVal = ipfs_repo_fsrepo_open(fs_repo);
if (retVal == 0) {
ipfs_repo_fsrepo_free(fs_repo);
return 0;
}
// create data for node
size_t binary_data_size = 256;
unsigned char binary_data[binary_data_size];
for(int i = 0; i < binary_data_size; i++) {
binary_data[i] = i;
}
// create a node
struct Node* node1 = N_Create_From_Data(binary_data, binary_data_size);
retVal = ipfs_merkledag_add(node1, fs_repo);
if (retVal == 0) {
Node_Delete(node1);
ipfs_repo_fsrepo_free(fs_repo);
return 0;
}
// now retrieve it
struct Node* results_node;
retVal = ipfs_merkledag_get(node1->cached, &results_node, fs_repo);
if (retVal == 0) {
Node_Delete(node1);
Node_Delete(results_node);
ipfs_repo_fsrepo_free(fs_repo);
return 0;
}
if (results_node->data_size != 256) {
Node_Delete(node1);
Node_Delete(results_node);
ipfs_repo_fsrepo_free(fs_repo);
return 0;
}
// the data should be the same
for(int i = 0; i < results_node->data_size; i++) {
if (results_node->data[i] != node1->data[i]) {
Node_Delete(node1);
Node_Delete(results_node);
ipfs_repo_fsrepo_free(fs_repo);
return 0;
}
}
Node_Delete(node1);
Node_Delete(results_node);
ipfs_repo_fsrepo_free(fs_repo);
return retVal;
}
int test_merkledag_add_data() {
int retVal = 0;
// create a fresh repo
retVal = drop_and_build_repository("/tmp/.ipfs");
if (retVal == 0)
return 0;
// open the fs repo
struct RepoConfig* repo_config = NULL;
struct FSRepo* fs_repo;
const char* path = "/tmp/.ipfs";
// create the struct
retVal = ipfs_repo_fsrepo_new((char*)path, repo_config, &fs_repo);
if (retVal == 0)
return 0;
// open the repository and read the config file
retVal = ipfs_repo_fsrepo_open(fs_repo);
if (retVal == 0) {
ipfs_repo_fsrepo_free(fs_repo);
return 0;
}
// get the size of the database
int start_file_size = os_utils_file_size("/tmp/.ipfs/datastore/data.mdb");
// create data for node
size_t binary_data_size = 256;
unsigned char binary_data[binary_data_size];
for(int i = 0; i < binary_data_size; i++) {
binary_data[i] = i;
}
// create a node
struct Node* node1 = N_Create_From_Data(binary_data, binary_data_size);
retVal = ipfs_merkledag_add(node1, fs_repo);
if (retVal == 0) {
Node_Delete(node1);
return 0;
}
// make sure everything is correct
if (node1->cached == NULL)
return 0;
int first_add_size = os_utils_file_size("/tmp/.ipfs/datastore/data.mdb");
if (first_add_size == start_file_size) { // uh oh, database should have increased in size
Node_Delete(node1);
return 0;
}
// adding the same binary again should do nothing (the hash should be the same)
struct Node* node2 = N_Create_From_Data(binary_data, binary_data_size);
retVal = ipfs_merkledag_add(node2, fs_repo);
if (retVal == 0) {
Node_Delete(node1);
Node_Delete(node2);
return 0;
}
// make sure everything is correct
if (node2->cached == NULL) {
Node_Delete(node1);
Node_Delete(node2);
return 0;
}
for(int i = 0; i < node1->cached->hash_length; i++) {
if (node1->cached->hash[i] != node2->cached->hash[i]) {
printf("hash of node1 does not match node2 at position %d\n", i);
Node_Delete(node1);
Node_Delete(node2);
return 0;
}
}
int second_add_size = os_utils_file_size("/tmp/.ipfs/datastore/data.mdb");
if (first_add_size != second_add_size) { // uh oh, the database shouldn't have changed size
printf("looks as if a new record was added when it shouldn't have. Old file size: %d, new file size: %d\n", first_add_size, second_add_size);
Node_Delete(node1);
Node_Delete(node2);
return 0;
}
// now change 1 byte, which should change the hash
binary_data[10] = 0;
// create a node
struct Node* node3 = N_Create_From_Data(binary_data, binary_data_size);
retVal = ipfs_merkledag_add(node3, fs_repo);
if (retVal == 0) {
Node_Delete(node1);
Node_Delete(node2);
Node_Delete(node3);
return 0;
}
// make sure everything is correct
if (node3->cached == NULL) {
Node_Delete(node1);
Node_Delete(node2);
Node_Delete(node3);
return 0;
}
Node_Delete(node1);
Node_Delete(node2);
Node_Delete(node3);
int third_add_size = os_utils_file_size("/tmp/.ipfs/datastore/data.mdb");
if (third_add_size == second_add_size || third_add_size < second_add_size) {// uh oh, it didn't add it
printf("Node 3 should have been added, but the file size did not change from %d.\n", third_add_size);
return 0;
}
ipfs_repo_fsrepo_free(fs_repo);
return 1;
}