You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: entry.rs
    path of file: ./repos/p2panda/p2panda-rs/src/wasm/tests
    
    the code of the file until where you have to start completion: // SPDX-License-Identifier: AGPL-3.0-or-later

use wasm_bindgen_test::*;

use crate::hash::Hash;
use crate::operation::OperationFields;
use crate::test_utils::fixtures::{operation_with_schema, random_document_view_id};
use crate::wasm::{decode_entry, sign_and_encode_entry, KeyPair};

wasm_bindgen_test_configure!(run_in_browser);

#[wasm_bindgen_test]
fn encodes_decodes_entries() {
    // Prepare key pair
    let key_pair = KeyPair::new();

    // Prepare operation
    let mut fields = OperationFields::new();
    fields.insert("username", "dolphin".into()).unwrap();
    let operation = operation_with_schema(Some(fields), Some(random_document_view_id()));
    let operation_encoded = crate::operation::encode::encode_operation(&operation).unwrap();

    // Encode entry
    let encoded_entry =
        sign_and_encode_entry(0, 1, None, None, operation_encoded.to_string(), &key_pair);
    assert!(encoded_entry.is_ok());

    // ... and decode again
    let decode_result = decode_entry(encoded_entry.unwrap());
    assert!(decode_result.is_ok());

    // @TODO: This currently does not work because of an issue in the `serde_wasm_bindgen` crate
    // not allowing us to convert JsValue(BigInt) values back into Rust types.
    //
    // Related issue: https://github.com/cloudflare/serde-wasm-bindgen/issues/30
    //
    // let decoded_entry: Entry = deserialize_from_js(decode_result.unwrap()).unwrap();
    // assert_eq!(*decoded_entry.log_id(), LogId::new(1));
    // assert_eq!(*decoded_entry.seq_num(), SeqNum::new(1).unwrap());
    // assert_eq!(decoded_entry.backlink_hash(), None);
    // assert_eq!(decoded_entry.skiplink_hash(), None);
    // assert_eq!(decoded_entry.operation(), 
    
fn encodes_decodes_entries() {
    // Prepare key pair
    let key_pair = KeyPair::new();

    // Prepare operation
    let mut fields = OperationFields::new();
    fields.insert("username", "dolphin".into()).unwrap();
    let operation = operation_with_schema(Some(fields), Some(random_document_view_id()));
    let operation_encoded = crate::operation::encode::encode_operation(&operation).unwrap();

    // Encode entry
    let encoded_entry =
        sign_and_encode_entry(0, 1, None, None, operation_encoded.to_string(), &key_pair);
    assert!(encoded_entry.is_ok());

    // ... and decode again
    let decode_result = decode_entry(encoded_entry.unwrap());
    assert!(decode_result.is_ok());

    // @TODO: This currently does not work because of an issue in the `serde_wasm_bindgen` crate
    // not allowing us to convert JsValue(BigInt) values back into Rust types.
    //
    // Related issue: https://github.com/cloudflare/serde-wasm-bindgen/issues/30
    //
    // let decoded_entry: Entry = deserialize_from_js(decode_result.unwrap()).unwrap();
    // assert_eq!(*decoded_entry.log_id(), LogId::new(1));
    // assert_eq!(*decoded_entry.seq_num(), SeqNum::new(1).unwrap());
    // assert_eq!(decoded_entry.backlink_hash(), None);
    // assert_eq!(decoded_entry.skiplink_hash(), None);
    // assert_eq!(decoded_entry.operation(), Some(&operation));

    // Entries with backlink and skiplink should encode
    let result = sign_and_encode_entry(
        0,
        7,
        Some(Hash::new_from_bytes(&[0, 1, 2]).to_string()),
        Some(Hash::new_from_bytes(&[1, 2, 3]).to_string()),
        operation_encoded.to_string(),
        &key_pair,
    );
    assert!(result.is_ok());

    // This entry should have a backlink and is invalid
    let result = sign_and_encode_entry(0, 3, None, None, operation_encoded.to_string(), &key_pair);
    assert!(result.is_err());
}