test.html

<pre style="width: 100%; height: 100%; margin:0px; "></pre>

<script src='dist-web/eosjs-debug.js'></script>
<script src='dist-web/eosjs-jsonrpc-debug.js'></script>
<script src='dist-web/eosjs-jssig-debug.js'></script>
<script>
  let pre = document.getElementsByTagName('pre')[0];
  const defaultPrivateKey = "5JtUScZK2XEp3g9gh7F8bwtPTRAkASmNrrftmx4AxDKD5K4zDnr"; // useraaaaaaaa
  const rpc = new eosjs_jsonrpc.JsonRpc('http://localhost:8000');
  const signatureProvider = new eosjs_jssig.default([defaultPrivateKey]);
  const api = new eosjs.Api({ rpc, signatureProvider });

  function waitTwoSeconds() {
    return new Promise(resolve => setTimeout(resolve, 2000));
  }

  (async () => {
    try {
      const resultWithConfig = await api.transact({
        actions: [{
            account: 'eosio.token',
            name: 'transfer',
            authorization: [{
                actor: 'useraaaaaaaa',
                permission: 'active',
            }],
            data: {
                from: 'useraaaaaaaa',
                to: 'useraaaaaaab',
                quantity: '0.0001 SYS',
                memo: '',
            },
        }]
      }, {
        blocksBehind: 3,
        expireSeconds: 30,
      });
      pre.textContent += '\n\nTransaction with configured TAPOS pushed!\n\n' + JSON.stringify(resultWithConfig, null, 2);
      await waitTwoSeconds(); // run additional tests after 2 second delay

      const resultWithoutBroadcast = await api.transact({
        actions: [{
            account: 'eosio.token',
            name: 'transfer',
            authorization: [{
                actor: 'useraaaaaaaa',
                permission: 'active',
            }],
            data: {
                from: 'useraaaaaaaa',
                to: 'useraaaaaaab',
                quantity: '0.0001 SYS',
                memo: '',
            },
        }]
      }, {
        broadcast: false,
        blocksBehind: 3,
        expireSeconds: 30,
      });
      pre.textContent = '\n\nTransaction serialized and signed but not pushed!\n\n' + JSON.stringify(resultWithoutBroadcast, null, 2);
      await waitTwoSeconds();

      const broadcastResult = await api.pushSignedTransaction(resultWithoutBroadcast);
      pre.textContent = '\n\nSerialized Transaction and signatures pushed!\n\n' + JSON.stringify(broadcastResult, null, 2);

      /* The test below will not work with hardcoded values for ref_block_num and prefix, we need to use the response from the previous test to retrieve those when full test suite is implemented

      await waitTwoSeconds();

      const currentDate = new Date();
      const timePlusTen = currentDate.getTime() + 10000;
      const timeInISOString = (new Date(timePlusTen)).toISOString();
      const expiration = timeInISOString.substr(0, timeInISOString.length - 1);
      const resultWithoutConfig = await api.transact({
        expiration,
        ref_block_num: 47657,
        ref_block_prefix: 3285495572,
        actions: [{
            account: 'eosio.token',
            name: 'transfer',
            authorization: [{
                actor: 'useraaaaaaaa',
                permission: 'active',
            }],
            data: {
                from: 'useraaaaaaaa',
                to: 'useraaaaaaab',
                quantity: '0.0001 SYS',
                memo: '',
            },
        }]
      });
      pre.textContent = '\n\nTransaction with manual TAPOS pushed!\n\n' + JSON.stringify(resultWithoutConfig, null, 2);
      */

      await waitTwoSeconds();
      const resultShouldFail = await api.transact({
        actions: [{
            account: 'eosio.token',
            name: 'transfer',
            authorization: [{
                actor: 'useraaaaaaaa',
                permission: 'active',
            }],
            data: {
                from: 'useraaaaaaaa',
                to: 'useraaaaaaab',
                quantity: '0.0001 SYS',
                memo: '',
            },
        }]
      });
    } catch (e) {
      pre.textContent = '\nCaught exception: ' + e;
      if (e instanceof eosjs_jsonrpc.RpcError)
        pre.textContent += '\n\n' + JSON.stringify(e.json, null, 2);
    }
  })();
</script>