BlockState working in memory with basic event triggers

test/test_blockstate.py

@@ -0,0 +1,62 @@
+from dexorder.base.blockstate import BlockState, BlockDict
+from dexorder.db.model.block import Block
+
+block_10 = Block(chain=1, height=10, hash=bytes.fromhex('10'), parent=bytes.fromhex('09'), data=None)
+block_11a = Block(chain=1, height=11, hash=bytes.fromhex('1a'), parent=block_10.hash, data=None)
+block_11b = Block(chain=1, height=11, hash=bytes.fromhex('1b'), parent=block_10.hash, data=None)
+block_12a = Block(chain=1, height=12, hash=bytes.fromhex('12'), parent=block_11a.hash, data=None)
+state = BlockState(block_10, {'series':{'foo':'bar'}})
+BlockState.set_cur(state)
+d = BlockDict('series')
+
+def start_block(b):
+    Block.set_cur(b)
+    state.add_block(b)
+
+start_block(block_11a)
+del d['foo']
+d['foue'] = 'barre'
+
+start_block(block_12a)
+d['foo'] = 'bar2'
+
+start_block(block_11b)
+d['fu'] = 'ku'
+
+def print_dict(x:dict=d):
+    for k, v in x.items():
+        print(f'{k:>10} : {v}')
+
+for block in [block_10,block_11a,block_12a,block_11b]:
+    Block.set_cur(block)
+    print()
+    print(Block.cur().hash)
+    print_dict()
+
+def test11b():
+    Block.set_cur(block_11b)
+    assert 'fu' in d
+    assert d['fu'] == 'ku'
+    assert 'foo' in d
+    assert d['foo'] == 'bar'
+
+def test12a():
+    Block.set_cur(block_12a)
+    assert 'fu' not in d
+    assert 'foo' in d
+    assert d['foo'] == 'bar2'
+    assert 'foue' in d
+    assert d['foue'] == 'barre'
+
+test11b()
+test12a()
+state.promote_root(block_11a)
+print()
+print('promoted root')
+print_dict(state.root_state)
+test12a()
+state.promote_root(block_12a)
+print()
+print('promoted root')
+print_dict(state.root_state)
+test12a()