tests: add more delete range test cases (#113)

Cargo.toml

@@ -29,6 +29,7 @@ path = "tests/test.rs"
 [dependencies]
 libc = "0.2.11"
 tempdir = "0.3.4"
+crc = "1.2"
 
 [dependencies.librocksdb_sys]
 path = "librocksdb_sys"

tests/test.rs

 extern crate rocksdb;
 extern crate tempdir;
 extern crate byteorder;
+extern crate crc;
 
 mod test_iterator;
 mod test_multithreaded;

tests/test_ingest_external_file.rs

@@ -245,4 +245,4 @@ fn test_ingest_external_file_new_cf() {
     assert_eq!(snap.get_cf(handle, b"k1").unwrap().unwrap(), b"a");
     assert_eq!(snap.get_cf(handle, b"k2").unwrap().unwrap(), b"b");
     assert_eq!(snap.get_cf(handle, b"k3").unwrap().unwrap(), b"c");
-}
\ No newline at end of file
+}

tests/test_rocksdb_options.rs

@@ -513,4 +513,4 @@ fn test_read_options() {
         iter.next();
     }
     assert!(key_count == 3);
-}
\ No newline at end of file
+}