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Beginnings of testing for MerkleDag

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This commit is contained in:
jmjatlanta 2016-12-05 13:11:22 -05:00
parent 0245aa6549
commit f9d927f375
8 changed files with 223 additions and 117 deletions
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66
test/merkledag/test_merkledag.h
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@ -1,11 +1,17 @@
#include "ipfs/merkledag/merkledag.h"
#include "ipfs/node/node.h"
#include "../test_helper.h"
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;
struct RepoConfig* repo_config = NULL;
struct FSRepo* fs_repo;
const char* path = "/tmp/.ipfs";
@ -21,6 +27,9 @@ int test_merkledag_add_data() {
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 = 255;
unsigned char binary_data[binary_data_size];
@ -29,17 +38,64 @@ int test_merkledag_add_data() {
}
// create a node
struct Node* node = N_Create_From_Data(binary_data);
struct Node* node1 = N_Create_From_Data(binary_data, 255);
retVal = ipfs_merkledag_add(node, fs_repo);
retVal = ipfs_merkledag_add(node1, fs_repo);
if (retVal == 0)
return 0;
// make sure everything is correct
if (node->cached == NULL)
if (node1->cached == NULL)
return 0;
Node_Delete(node);
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
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, 255);
retVal = ipfs_merkledag_add(node2, fs_repo);
if (retVal == 0)
return 0;
// make sure everything is correct
if (node2->cached == NULL)
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);
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
fprintf("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);
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, 255);
retVal = ipfs_merkledag_add(node3, fs_repo);
if (retVal == 0)
return 0;
// make sure everything is correct
if (node3->cached == NULL)
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;
}
return 1;
}