text: 
  const Vector = require('../Vector.js');
  const Node = require('../Node.js');
  
  const invalidParams = require('./helpers/vector/invalidParams');
  const validParams = require('./helpers/vector/validParams');
  
  const validNode = new Node('node-example', '/path/to/file.js', {
    type: 'VariableDeclaration',
    start: 1,
    end: 28,
    loc: {
      start: {
        line: 2,
        column: 0
      },
      end: {
        line: 4,
        column: 2
      }
    }
  });
  
  describe('Vector', () => {
    describe('#constructor', () => {
      invalidParams(Vector, validNode);
      validParams(Vector, validNode);
    });
  });