besu/acceptance-tests/simple-permissioning-smart-contract/test/test-permissioning-ipv4.js

const TestPermissioning = artifacts.require('SimplePermissioning.sol');
var proxy;

var node1High = "0x9bd359fdc3a2ed5df436c3d8914b1532740128929892092b7fcb320c1b62f375";
var node1Low = "0x892092b7fcb320c1b62f3759bd359fdc3a2ed5df436c3d8914b1532740128929";
var node1Host = "0x9bd359fd";
var node1Port = 30303;

var node2High = "0x892092b7fcb320c1b62f3759bd359fdc3a2ed5df436c3d8914b1532740128929";
var node2Low = "0x892092b7fcb320c1b62f3759bd359fdc3a2ed5df436c3d8914b1532740128929";
var node2Host = "0x9bd359fd";
var node2Port = 30304;

contract('Permissioning Ipv4', () => {
  describe('Function: permissioning Ipv4', () => {
    it('Should NOT permit any node when none have been added', async () => {
      proxy = await TestPermissioning.new();
      let permitted = await proxy.enodeAllowedIpv4(node1High, node1Low, node1Host, node1Port);
      assert.equal(permitted, false, 'expected node NOT permitted');
    });

    it('Should compute key', async () => {
      let key1 = await proxy.computeKeyIpv4(node1High, node1Low, node1Host, node1Port);
      let key2 = await proxy.computeKeyIpv4(node1High, node1Low, node1Host, node1Port);
      assert.equal(key1, key2, "computed keys should be the same");

      let key3 = await proxy.computeKeyIpv4(node1High, node1Low, node1Host, node2Port);
      assert(key3 != key2, "keys for different ports should be different");
    });

    it('Should add a node to the whitelist and then permit that node', async () => {
      await proxy.addEnodeIpv4(node1High, node1Low, node1Host, node1Port);
      let permitted = await proxy.enodeAllowedIpv4(node1High, node1Low, node1Host, node1Port);
      assert.equal(permitted, true, 'expected node added to be permitted');
 
      // await another
      await proxy.addEnodeIpv4(node2High, node2Low, node2Host, node2Port);
      permitted = await proxy.enodeAllowedIpv4(node2High, node2Low, node2Host, node2Port);
      assert.equal(permitted, true, 'expected node 2 added to be permitted');
 
      // first one still permitted
      permitted = await proxy.enodeAllowedIpv4(node1High, node1Low, node1Host, node1Port);
      assert.equal(permitted, true, 'expected node 1 added to be permitted');
    });

    it('Should allow a connection between 2 added nodes', async () => {
      let permitted = await proxy.connectionAllowedIpv4(node1High, node1Low, node1Host, node1Port, node2High, node2Low, node2Host, node2Port);
      assert.equal(permitted, true, 'expected 2 added nodes to work as source <> destination');
    });

    it('Should remove a node from the whitelist and then NOT permit that node', async () => {
      await proxy.removeEnodeIpv4(node1High, node1Low, node1Host, node1Port);
      let permitted = await proxy.enodeAllowedIpv4(node1High, node1Low, node1Host, node1Port);
      assert.equal(permitted, false, 'expected removed node NOT permitted');

      permitted = await proxy.connectionAllowedIpv4(node1High, node1Low, node1Host, node1Port, node2High, node2Low, node2Host, node2Port);
      assert.equal(permitted, false, 'expected source disallowed since it was removed');
    });

  });
});