fix: exclude name from CounterLock repr when name is empty (#498)

* fix: exclude name from CounterLock repr when name is empty

* Update test_counter.py

a_sync/primitives/locks/counter.pyx

@@ -84,7 +84,11 @@ cdef class CounterLock(_DebugDaemonMixin):
         """
         cdef dict[long long, Event] events = self._events
         cdef dict[long long, Py_ssize_t] waiters = {v: len((<Event>events[v])._waiters) for v in self._heap}
-        return "<CounterLock name={} value={} waiters={}>".format(self.__name.decode("utf-8"), self._value, waiters)
+        cdef str name = self.__name.decode("utf-8")
+        if name:
+            return "<CounterLock name={} value={} waiters={}>".format(self.__name.decode("utf-8"), self._value, waiters)
+        else:
+            return "<CounterLock value={} waiters={}>".format(self._value, waiters)
 
     cpdef bint is_ready(self, long long v):
         """A function that indicates whether the current counter value is greater than or equal to a given value."""

tests/primitives/test_counter.py

@@ -5,6 +5,21 @@
 
 @pytest.mark.asyncio_cooperative
 async def test_counter_lock():
+    counter = CounterLock()
+    assert counter._name == ""
+    assert repr(counter) == "<CounterLock value=0 waiters={}>"
+    coro = counter.wait_for(1)
+    task = asyncio.create_task(coro)
+    await asyncio.sleep(0)
+    assert repr(counter) == "<CounterLock value=0 waiters={1: 1}>"
+    counter.set(1)
+    await asyncio.sleep(0)
+    assert task.done() and task.result() is True
+    assert repr(counter) == "<CounterLock value=1 waiters={}>"
+
+
+@pytest.mark.asyncio_cooperative
+async def test_counter_lock_with_name():
     counter = CounterLock(name="test")
     assert counter._name == "test"
     assert repr(counter) == "<CounterLock name=test value=0 waiters={}>"