add 3.5 tests

Signed-off-by: Alex Chi Z <iskyzh@gmail.com>

mini-lsm/src/tests/harness.rs

@@ -114,6 +114,7 @@ where
     assert!(!iter.is_valid());
 }
 
+#[allow(dead_code)]
 pub fn check_iter_result_by_key_and_ts<I>(iter: &mut I, expected: Vec<((Bytes, u64), Bytes)>)
 where
     I: for<'a> StorageIterator<KeyType<'a> = KeySlice<'a>>,
@@ -192,6 +193,7 @@ pub fn generate_sst(
     builder.build(id, block_cache, path.as_ref()).unwrap()
 }
 
+#[allow(dead_code)]
 pub fn generate_sst_with_ts(
     id: usize,
     path: impl AsRef<Path>,

mini-lsm/src/tests/week2_day1.rs

@@ -7,12 +7,10 @@ use week2_day1::harness::construct_merge_iterator_over_storage;
 
 use super::*;
 use crate::{
-    iterators::{
-        concat_iterator::SstConcatIterator, merge_iterator::MergeIterator, StorageIterator,
-    },
+    iterators::{concat_iterator::SstConcatIterator, StorageIterator},
     key::{KeySlice, TS_ENABLED},
-    lsm_storage::{LsmStorageInner, LsmStorageOptions, LsmStorageState},
-    table::{SsTable, SsTableBuilder, SsTableIterator},
+    lsm_storage::{LsmStorageInner, LsmStorageOptions},
+    table::{SsTable, SsTableBuilder},
 };
 
 #[test]