Newer
Older
// A1 -> B2 -> B3 -> B4
// B2 -> C3
// A1 -> D2
let client = test_client::new();
// G -> A1
let a1 = client.new_block().unwrap().bake().unwrap();
client.import(BlockOrigin::Own, a1.clone()).unwrap();
// A1 -> A2
let a2 = client.new_block_at(&BlockId::Hash(a1.hash())).unwrap().bake().unwrap();
client.import(BlockOrigin::Own, a2.clone()).unwrap();
// A2 -> A3
let a3 = client.new_block_at(&BlockId::Hash(a2.hash())).unwrap().bake().unwrap();
client.import(BlockOrigin::Own, a3.clone()).unwrap();
// A3 -> A4
let a4 = client.new_block_at(&BlockId::Hash(a3.hash())).unwrap().bake().unwrap();
client.import(BlockOrigin::Own, a4.clone()).unwrap();
// A4 -> A5
let a5 = client.new_block_at(&BlockId::Hash(a4.hash())).unwrap().bake().unwrap();
client.import(BlockOrigin::Own, a5.clone()).unwrap();
// A1 -> B2
let mut builder = client.new_block_at(&BlockId::Hash(a1.hash())).unwrap();
// this push is required as otherwise B2 has the same hash as A2 and won't get imported
builder.push_transfer(Transfer {
from: AccountKeyring::Alice.into(),
to: AccountKeyring::Ferdie.into(),
amount: 41,
nonce: 0,
}).unwrap();
let b2 = builder.bake().unwrap();
client.import(BlockOrigin::Own, b2.clone()).unwrap();
// B2 -> B3
let b3 = client.new_block_at(&BlockId::Hash(b2.hash())).unwrap().bake().unwrap();
client.import(BlockOrigin::Own, b3.clone()).unwrap();
// B3 -> B4
let b4 = client.new_block_at(&BlockId::Hash(b3.hash())).unwrap().bake().unwrap();
client.import(BlockOrigin::Own, b4.clone()).unwrap();
// // B2 -> C3
let mut builder = client.new_block_at(&BlockId::Hash(b2.hash())).unwrap();
// this push is required as otherwise C3 has the same hash as B3 and won't get imported
builder.push_transfer(Transfer {
from: AccountKeyring::Alice.into(),
to: AccountKeyring::Ferdie.into(),
amount: 1,
nonce: 1,
}).unwrap();
let c3 = builder.bake().unwrap();
client.import(BlockOrigin::Own, c3.clone()).unwrap();
// A1 -> D2
let mut builder = client.new_block_at(&BlockId::Hash(a1.hash())).unwrap();
// this push is required as otherwise D2 has the same hash as B2 and won't get imported
builder.push_transfer(Transfer {
from: AccountKeyring::Alice.into(),
to: AccountKeyring::Ferdie.into(),
amount: 1,
nonce: 0,
}).unwrap();
let d2 = builder.bake().unwrap();
client.import(BlockOrigin::Own, d2.clone()).unwrap();
assert_eq!(client.info().unwrap().chain.best_hash, a5.hash());
let genesis_hash = client.info().unwrap().chain.genesis_hash;
let longest_chain_select = test_client::client::LongestChain::new(
Arc::new(client.backend().as_in_memory()),
client.import_lock());
let leaves = longest_chain_select.leaves().unwrap();
assert!(leaves.contains(&a5.hash()));
assert!(leaves.contains(&b4.hash()));
assert!(leaves.contains(&c3.hash()));
assert!(leaves.contains(&d2.hash()));
assert_eq!(leaves.len(), 4);
// search without restriction
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
assert_eq!(a5.hash(), longest_chain_select.finality_target(
genesis_hash, None).unwrap().unwrap());
assert_eq!(a5.hash(), longest_chain_select.finality_target(
a1.hash(), None).unwrap().unwrap());
assert_eq!(a5.hash(), longest_chain_select.finality_target(
a2.hash(), None).unwrap().unwrap());
assert_eq!(a5.hash(), longest_chain_select.finality_target(
a3.hash(), None).unwrap().unwrap());
assert_eq!(a5.hash(), longest_chain_select.finality_target(
a4.hash(), None).unwrap().unwrap());
assert_eq!(a5.hash(), longest_chain_select.finality_target(
a5.hash(), None).unwrap().unwrap());
assert_eq!(b4.hash(), longest_chain_select.finality_target(
b2.hash(), None).unwrap().unwrap());
assert_eq!(b4.hash(), longest_chain_select.finality_target(
b3.hash(), None).unwrap().unwrap());
assert_eq!(b4.hash(), longest_chain_select.finality_target(
b4.hash(), None).unwrap().unwrap());
assert_eq!(c3.hash(), longest_chain_select.finality_target(
c3.hash(), None).unwrap().unwrap());
assert_eq!(d2.hash(), longest_chain_select.finality_target(
d2.hash(), None).unwrap().unwrap());
// search only blocks with number <= 5. equivalent to without restriction for this scenario
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
assert_eq!(a5.hash(), longest_chain_select.finality_target(
genesis_hash, Some(5)).unwrap().unwrap());
assert_eq!(a5.hash(), longest_chain_select.finality_target(
a1.hash(), Some(5)).unwrap().unwrap());
assert_eq!(a5.hash(), longest_chain_select.finality_target(
a2.hash(), Some(5)).unwrap().unwrap());
assert_eq!(a5.hash(), longest_chain_select.finality_target(
a3.hash(), Some(5)).unwrap().unwrap());
assert_eq!(a5.hash(), longest_chain_select.finality_target(
a4.hash(), Some(5)).unwrap().unwrap());
assert_eq!(a5.hash(), longest_chain_select.finality_target(
a5.hash(), Some(5)).unwrap().unwrap());
assert_eq!(b4.hash(), longest_chain_select.finality_target(
b2.hash(), Some(5)).unwrap().unwrap());
assert_eq!(b4.hash(), longest_chain_select.finality_target(
b3.hash(), Some(5)).unwrap().unwrap());
assert_eq!(b4.hash(), longest_chain_select.finality_target(
b4.hash(), Some(5)).unwrap().unwrap());
assert_eq!(c3.hash(), longest_chain_select.finality_target(
c3.hash(), Some(5)).unwrap().unwrap());
assert_eq!(d2.hash(), longest_chain_select.finality_target(
d2.hash(), Some(5)).unwrap().unwrap());
// search only blocks with number <= 4
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
assert_eq!(a4.hash(), longest_chain_select.finality_target(
genesis_hash, Some(4)).unwrap().unwrap());
assert_eq!(a4.hash(), longest_chain_select.finality_target(
a1.hash(), Some(4)).unwrap().unwrap());
assert_eq!(a4.hash(), longest_chain_select.finality_target(
a2.hash(), Some(4)).unwrap().unwrap());
assert_eq!(a4.hash(), longest_chain_select.finality_target(
a3.hash(), Some(4)).unwrap().unwrap());
assert_eq!(a4.hash(), longest_chain_select.finality_target(
a4.hash(), Some(4)).unwrap().unwrap());
assert_eq!(None, longest_chain_select.finality_target(
a5.hash(), Some(4)).unwrap());
assert_eq!(b4.hash(), longest_chain_select.finality_target(
b2.hash(), Some(4)).unwrap().unwrap());
assert_eq!(b4.hash(), longest_chain_select.finality_target(
b3.hash(), Some(4)).unwrap().unwrap());
assert_eq!(b4.hash(), longest_chain_select.finality_target(
b4.hash(), Some(4)).unwrap().unwrap());
assert_eq!(c3.hash(), longest_chain_select.finality_target(
c3.hash(), Some(4)).unwrap().unwrap());
assert_eq!(d2.hash(), longest_chain_select.finality_target(
d2.hash(), Some(4)).unwrap().unwrap());
// search only blocks with number <= 3
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
assert_eq!(a3.hash(), longest_chain_select.finality_target(
genesis_hash, Some(3)).unwrap().unwrap());
assert_eq!(a3.hash(), longest_chain_select.finality_target(
a1.hash(), Some(3)).unwrap().unwrap());
assert_eq!(a3.hash(), longest_chain_select.finality_target(
a2.hash(), Some(3)).unwrap().unwrap());
assert_eq!(a3.hash(), longest_chain_select.finality_target(
a3.hash(), Some(3)).unwrap().unwrap());
assert_eq!(None, longest_chain_select.finality_target(
a4.hash(), Some(3)).unwrap());
assert_eq!(None, longest_chain_select.finality_target(
a5.hash(), Some(3)).unwrap());
assert_eq!(b3.hash(), longest_chain_select.finality_target(
b2.hash(), Some(3)).unwrap().unwrap());
assert_eq!(b3.hash(), longest_chain_select.finality_target(
b3.hash(), Some(3)).unwrap().unwrap());
assert_eq!(None, longest_chain_select.finality_target(
b4.hash(), Some(3)).unwrap());
assert_eq!(c3.hash(), longest_chain_select.finality_target(
c3.hash(), Some(3)).unwrap().unwrap());
assert_eq!(d2.hash(), longest_chain_select.finality_target(
d2.hash(), Some(3)).unwrap().unwrap());
// search only blocks with number <= 2
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
assert_eq!(a2.hash(), longest_chain_select.finality_target(
genesis_hash, Some(2)).unwrap().unwrap());
assert_eq!(a2.hash(), longest_chain_select.finality_target(
a1.hash(), Some(2)).unwrap().unwrap());
assert_eq!(a2.hash(), longest_chain_select.finality_target(
a2.hash(), Some(2)).unwrap().unwrap());
assert_eq!(None, longest_chain_select.finality_target(
a3.hash(), Some(2)).unwrap());
assert_eq!(None, longest_chain_select.finality_target(
a4.hash(), Some(2)).unwrap());
assert_eq!(None, longest_chain_select.finality_target(
a5.hash(), Some(2)).unwrap());
assert_eq!(b2.hash(), longest_chain_select.finality_target(
b2.hash(), Some(2)).unwrap().unwrap());
assert_eq!(None, longest_chain_select.finality_target(
b3.hash(), Some(2)).unwrap());
assert_eq!(None, longest_chain_select.finality_target(
b4.hash(), Some(2)).unwrap());
assert_eq!(None, longest_chain_select.finality_target(
c3.hash(), Some(2)).unwrap());
assert_eq!(d2.hash(), longest_chain_select.finality_target(
d2.hash(), Some(2)).unwrap().unwrap());
// search only blocks with number <= 1
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
assert_eq!(a1.hash(), longest_chain_select.finality_target(
genesis_hash, Some(1)).unwrap().unwrap());
assert_eq!(a1.hash(), longest_chain_select.finality_target(
a1.hash(), Some(1)).unwrap().unwrap());
assert_eq!(None, longest_chain_select.finality_target(
a2.hash(), Some(1)).unwrap());
assert_eq!(None, longest_chain_select.finality_target(
a3.hash(), Some(1)).unwrap());
assert_eq!(None, longest_chain_select.finality_target(
a4.hash(), Some(1)).unwrap());
assert_eq!(None, longest_chain_select.finality_target(
a5.hash(), Some(1)).unwrap());
assert_eq!(None, longest_chain_select.finality_target(
b2.hash(), Some(1)).unwrap());
assert_eq!(None, longest_chain_select.finality_target(
b3.hash(), Some(1)).unwrap());
assert_eq!(None, longest_chain_select.finality_target(
b4.hash(), Some(1)).unwrap());
assert_eq!(None, longest_chain_select.finality_target(
c3.hash(), Some(1)).unwrap());
assert_eq!(None, longest_chain_select.finality_target(
d2.hash(), Some(1)).unwrap());
// search only blocks with number <= 0
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
assert_eq!(genesis_hash, longest_chain_select.finality_target(
genesis_hash, Some(0)).unwrap().unwrap());
assert_eq!(None, longest_chain_select.finality_target(
a1.hash(), Some(0)).unwrap());
assert_eq!(None, longest_chain_select.finality_target(
a2.hash(), Some(0)).unwrap());
assert_eq!(None, longest_chain_select.finality_target(
a3.hash(), Some(0)).unwrap());
assert_eq!(None, longest_chain_select.finality_target(
a4.hash(), Some(0)).unwrap());
assert_eq!(None, longest_chain_select.finality_target(
a5.hash(), Some(0)).unwrap());
assert_eq!(None, longest_chain_select.finality_target(
b2.hash(), Some(0)).unwrap());
assert_eq!(None, longest_chain_select.finality_target(
b3.hash(), Some(0)).unwrap());
assert_eq!(None, longest_chain_select.finality_target(
b4.hash(), Some(0)).unwrap());
assert_eq!(None, longest_chain_select.finality_target(
c3.hash().clone(), Some(0)).unwrap());
assert_eq!(None, longest_chain_select.finality_target(
d2.hash().clone(), Some(0)).unwrap());
fn best_containing_on_longest_chain_with_max_depth_higher_than_best() {
// block tree:
// G -> A1 -> A2
let client = test_client::new();
// G -> A1
let a1 = client.new_block().unwrap().bake().unwrap();
client.import(BlockOrigin::Own, a1.clone()).unwrap();
// A1 -> A2
let a2 = client.new_block().unwrap().bake().unwrap();
client.import(BlockOrigin::Own, a2.clone()).unwrap();
let genesis_hash = client.info().unwrap().chain.genesis_hash;
let longest_chain_select = test_client::client::LongestChain::new(
Arc::new(client.backend().as_in_memory()),
client.import_lock()
);
assert_eq!(a2.hash(), longest_chain_select.finality_target(
genesis_hash, Some(10)).unwrap().unwrap());
#[test]
fn key_changes_works() {
let (client, _, test_cases) = prepare_client_with_key_changes();
for (index, (begin, end, key, expected_result)) in test_cases.into_iter().enumerate() {
let end = client.block_hash(end).unwrap().unwrap();
let actual_result = client.key_changes(begin, BlockId::Hash(end), &StorageKey(key)).unwrap();
match actual_result == expected_result {
true => (),
false => panic!(format!("Failed test {}: actual = {:?}, expected = {:?}",
index, actual_result, expected_result)),
}
}
}
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
#[test]
fn import_with_justification() {
use test_client::blockchain::Backend;
let client = test_client::new();
// G -> A1
let a1 = client.new_block().unwrap().bake().unwrap();
client.import(BlockOrigin::Own, a1.clone()).unwrap();
// A1 -> A2
let a2 = client.new_block_at(&BlockId::Hash(a1.hash())).unwrap().bake().unwrap();
client.import(BlockOrigin::Own, a2.clone()).unwrap();
// A2 -> A3
let justification = vec![1, 2, 3];
let a3 = client.new_block_at(&BlockId::Hash(a2.hash())).unwrap().bake().unwrap();
client.import_justified(BlockOrigin::Own, a3.clone(), justification.clone()).unwrap();
assert_eq!(
client.backend().blockchain().last_finalized().unwrap(),
a3.hash(),
);
assert_eq!(
client.backend().blockchain().justification(BlockId::Hash(a3.hash())).unwrap(),
Some(justification),
);
assert_eq!(
client.backend().blockchain().justification(BlockId::Hash(a1.hash())).unwrap(),
None,
);
assert_eq!(
client.backend().blockchain().justification(BlockId::Hash(a2.hash())).unwrap(),
None,
);
}
