[RadixTree][4/N Refactor]: Move available_and_evictable_str to individual radix cache classes (#17852)

test/registered/radix_cache/test_mamba_unittest.py

@@ -12,6 +12,7 @@ from sglang.srt.mem_cache.base_prefix_cache import (
     MatchPrefixParams,
 )
 from sglang.srt.mem_cache.cache_init_params import CacheInitParams
+from sglang.srt.mem_cache.common import available_and_evictable_str
 from sglang.srt.mem_cache.mamba_radix_cache import MambaRadixCache
 from sglang.srt.mem_cache.memory_pool import HybridLinearKVPool, HybridReqToTokenPool
 from sglang.srt.mem_cache.radix_cache import RadixKey
@@ -381,6 +382,10 @@ class TestMamba(unittest.TestCase):
             == mamba_pool.mamba_cache.temporal[:, last_node.mamba_value]
         )
 
+        print(tree.available_and_evictable_str())
+        print(available_and_evictable_str(tree))
+        tree.sanity_check()
+
 
 if __name__ == "__main__":
     unittest.main()