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var chai = require('chai');
var assert = chai.assert;
var Method = require('../lib/web3/method');
describe('lib/web3/method', function () {
describe('extractCallback', function () {
it('should extract callback', function () {
// given
var method = new Method({});
var callback = function () { };
var args = [1, callback]
// when
var result = method.extractCallback(args);
// then
assert.equal(args.length, 1);
assert.equal(callback, result);
});
it('should extract callback created using newFunction', function () {
// given
var method = new Method({});
var callback = new Function ();
var args = [1, callback]
// when
var result = method.extractCallback(args);
// then
assert.equal(args.length, 1);
assert.equal(callback, result);
});
it('should not extract the callback', function () {
// given
var method = new Method({});
var args = [1, 2]
// when
var result = method.extractCallback(args);
// then
assert.equal(args.length, 2);
assert.equal(result, null);
});
});
});