Merge #745: Add tests to improve coverage

e65edbf Change parameter name of database in test funcs (Vladimir Fomene)
8830704 Add more test to the database module (Vladimir Fomene)
e06c3f9 Set tx field to none if `include_raw` is false (Vladimir Fomene)

Pull request description:

  ### Description

  This PR add more test to the database module and also fixes certain bugs discovered by the written test. I also amended the name used for the database parameter in the test functions.

  ### Notes to the reviewers

  This contributes to fixing #699

  ### Changelog notice

  <!-- Notice the release manager should include in the release tag message changelog -->
  <!-- See https://keepachangelog.com/en/1.0.0/ for examples -->

  ### Checklists

  #### All Submissions:

  * [x] I've signed all my commits
  * [x] I followed the [contribution guidelines](https://github.com/bitcoindevkit/bdk/blob/master/CONTRIBUTING.md)
  * [x] I ran `cargo fmt` and `cargo clippy` before committing

ACKs for top commit:
  rajarshimaitra:
    tACK e65edbf
  danielabrozzoni:
    Code review ACK e65edbf

Tree-SHA512: 1ac1475f7d63f25e94ef21342e6f6e243c34c8c9208d11a5492f224026055da2a96f20be83497c1ba361effff9861f4e68920f98feebaf4b201d205c7030c282

src/database/keyvalue.rs

@@ -492,4 +492,44 @@ mod test {
     fn test_sync_time() {
         crate::database::test::test_sync_time(get_tree());
     }
+
+    #[test]
+    fn test_iter_raw_txs() {
+        crate::database::test::test_iter_raw_txs(get_tree());
+    }
+
+    #[test]
+    fn test_del_path_from_script_pubkey() {
+        crate::database::test::test_del_path_from_script_pubkey(get_tree());
+    }
+
+    #[test]
+    fn test_iter_script_pubkeys() {
+        crate::database::test::test_iter_script_pubkeys(get_tree());
+    }
+
+    #[test]
+    fn test_del_utxo() {
+        crate::database::test::test_del_utxo(get_tree());
+    }
+
+    #[test]
+    fn test_del_raw_tx() {
+        crate::database::test::test_del_raw_tx(get_tree());
+    }
+
+    #[test]
+    fn test_del_tx() {
+        crate::database::test::test_del_tx(get_tree());
+    }
+
+    #[test]
+    fn test_del_last_index() {
+        crate::database::test::test_del_last_index(get_tree());
+    }
+
+    #[test]
+    fn test_check_descriptor_checksum() {
+        crate::database::test::test_check_descriptor_checksum(get_tree());
+    }
 }

src/database/memory.rs

@@ -647,4 +647,44 @@ mod test {
     fn test_sync_time() {
         crate::database::test::test_sync_time(get_tree());
     }
+
+    #[test]
+    fn test_iter_raw_txs() {
+        crate::database::test::test_iter_raw_txs(get_tree());
+    }
+
+    #[test]
+    fn test_del_path_from_script_pubkey() {
+        crate::database::test::test_del_path_from_script_pubkey(get_tree());
+    }
+
+    #[test]
+    fn test_iter_script_pubkeys() {
+        crate::database::test::test_iter_script_pubkeys(get_tree());
+    }
+
+    #[test]
+    fn test_del_utxo() {
+        crate::database::test::test_del_utxo(get_tree());
+    }
+
+    #[test]
+    fn test_del_raw_tx() {
+        crate::database::test::test_del_raw_tx(get_tree());
+    }
+
+    #[test]
+    fn test_del_tx() {
+        crate::database::test::test_del_tx(get_tree());
+    }
+
+    #[test]
+    fn test_del_last_index() {
+        crate::database::test::test_del_last_index(get_tree());
+    }
+
+    #[test]
+    fn test_check_descriptor_checksum() {
+        crate::database::test::test_check_descriptor_checksum(get_tree());
+    }
 }