chore: implement BlockQueryClient#Block

src/poktroll_clients/block_client.py

@@ -1,5 +1,7 @@
 from poktroll_clients.ffi import ffi, libpoktroll_clients
-from poktroll_clients.go_memory import GoManagedMem, go_ref
+from poktroll_clients.go_memory import GoManagedMem, go_ref, check_err
+from poktroll_clients.proto.tendermint.types.block_pb2 import Block
+from poktroll_clients.protobuf import get_proto_from_go_ref
 
 
 class BlockClient(GoManagedMem):
@@ -33,3 +35,18 @@ def __init__(self, query_node_rpc_url: str):
                                                          self.err_ptr)
 
         super().__init__(go_ref)
+
+    def block(self, query_height: int = 0) -> Block:
+        """
+        TODO_IN_THIS_COMMIT: comment
+        """
+        if query_height < 1:
+            c_query_height = ffi.NULL
+        else:
+            c_query_height = ffi.new("int64_t *", query_height)
+
+
+        block_ref = libpoktroll_clients.BlockQueryClient_Block(self.go_ref, c_query_height, self.err_ptr)
+        check_err(self.err_ptr)
+
+        return get_proto_from_go_ref(block_ref)

src/poktroll_clients/ffi.py

@@ -85,6 +85,7 @@
     go_ref EventsQueryClientEventsBytes(go_ref selfRef, const char* query);
 
     go_ref NewBlockQueryClient(char *comet_websocket_url, char **err);
+    go_ref BlockQueryClient_Block(go_ref self_ref, int64_t* query_height, char **err);
 
     go_ref NewTxContext(char *tcp_url, char **err);
 

tests/test_block_client.py

@@ -1,14 +1,21 @@
+from typing_extensions import assert_type
+
 from poktroll_clients import (
     BlockQueryClient,
     BlockClient,
     EventsQueryClient,
     SupplyMany,
 )
+from poktroll_clients.proto.tendermint.types.block_pb2 import Block
 
 
 def test_block_query_client():
-    events_query_client = EventsQueryClient("ws://127.0.0.1:26657/websocket")
     block_query_client = BlockQueryClient("http://127.0.0.1:26657")
+    current_block = block_query_client.block()
+
+    assert_type(current_block, Block)
+    assert current_block.header.height != 0
+
 
 
 def test_block_client():