Update openzeppelin-test-helpers dependency.

package-lock.json

@@ -4776,6 +4776,30 @@
             "underscore": "1.8.3",
             "web3-core-helpers": "1.0.0-beta.35",
             "websocket": "git://github.com/frozeman/WebSocket-Node.git#browserifyCompatible"
+          },
+          "dependencies": {
+            "debug": {
+              "version": "2.6.9",
+              "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+              "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
+              "dev": true,
+              "optional": true,
+              "requires": {
+                "ms": "2.0.0"
+              }
+            },
+            "websocket": {
+              "version": "git://github.com/frozeman/WebSocket-Node.git#6c72925e3f8aaaea8dc8450f97627e85263999f2",
+              "from": "git://github.com/frozeman/WebSocket-Node.git#browserifyCompatible",
+              "dev": true,
+              "optional": true,
+              "requires": {
+                "debug": "^2.2.0",
+                "nan": "^2.3.3",
+                "typedarray-to-buffer": "^3.1.2",
+                "yaeti": "^0.0.6"
+              }
+            }
           }
         },
         "web3-shh": {
@@ -6584,33 +6608,18 @@
       }
     },
     "openzeppelin-test-helpers": {
-      "version": "0.2.0",
-      "resolved": "https://registry.npmjs.org/openzeppelin-test-helpers/-/openzeppelin-test-helpers-0.2.0.tgz",
-      "integrity": "sha512-6tVzMy6t68dGcSOAwEPFYvJUqbek/aaJSjt+QjVshqV4yCOBR4f+CRzk1bjU/rh0aUp6Dkv9C5sHbr3dIp/ZlA==",
+      "version": "0.3.0",
+      "resolved": "https://registry.npmjs.org/openzeppelin-test-helpers/-/openzeppelin-test-helpers-0.3.0.tgz",
+      "integrity": "sha512-+UC7/HHCzaBLbVy1Y/IlNFI3hqbiw5PuBGoQXbmduzh5QNrbiNbQOT1WlVTjoSDUCIDnHpFjnY5hJKF0kzitUg==",
       "dev": true,
       "requires": {
         "ansi-colors": "^3.2.3",
-        "chai": "^4.2.0",
         "chai-bn": "^0.1.1",
         "ethjs-abi": "^0.2.1",
         "semver": "^5.6.0",
         "truffle-contract": "^4.0.8"
       },
       "dependencies": {
-        "chai": {
-          "version": "4.2.0",
-          "resolved": "https://registry.npmjs.org/chai/-/chai-4.2.0.tgz",
-          "integrity": "sha512-XQU3bhBukrOsQCuwZndwGcCVQHyZi53fQ6Ys1Fym7E4olpIqqZZhhoFJoaKVvV17lWQoXYwgWN2nF5crA8J2jw==",
-          "dev": true,
-          "requires": {
-            "assertion-error": "^1.1.0",
-            "check-error": "^1.0.2",
-            "deep-eql": "^3.0.1",
-            "get-func-name": "^2.0.0",
-            "pathval": "^1.1.0",
-            "type-detect": "^4.0.5"
-          }
-        },
         "semver": {
           "version": "5.6.0",
           "resolved": "https://registry.npmjs.org/semver/-/semver-5.6.0.tgz",
@@ -10239,6 +10248,17 @@
           "requires": {
             "http-https": "^1.0.0"
           }
+        },
+        "websocket": {
+          "version": "git://github.com/frozeman/WebSocket-Node.git#6c72925e3f8aaaea8dc8450f97627e85263999f2",
+          "from": "git://github.com/frozeman/WebSocket-Node.git#browserifyCompatible",
+          "dev": true,
+          "requires": {
+            "debug": "^2.2.0",
+            "nan": "^2.3.3",
+            "typedarray-to-buffer": "^3.1.2",
+            "yaeti": "^0.0.6"
+          }
         }
       }
     },
@@ -10272,6 +10292,19 @@
         "underscore": "1.8.3",
         "web3-core-helpers": "1.0.0-beta.37",
         "websocket": "git://github.com/frozeman/WebSocket-Node.git#browserifyCompatible"
+      },
+      "dependencies": {
+        "websocket": {
+          "version": "git://github.com/frozeman/WebSocket-Node.git#6c72925e3f8aaaea8dc8450f97627e85263999f2",
+          "from": "git://github.com/frozeman/WebSocket-Node.git#browserifyCompatible",
+          "dev": true,
+          "requires": {
+            "debug": "^2.2.0",
+            "nan": "^2.3.3",
+            "typedarray-to-buffer": "^3.1.2",
+            "yaeti": "^0.0.6"
+          }
+        }
       }
     },
     "web3-shh": {

package.json

@@ -53,7 +53,7 @@
     "ethjs-abi": "^0.2.1",
     "ganache-cli": "^6.4.1",
     "ganache-cli-coverage": "github:Agusx1211/ganache-cli#c462b3fc48fe9b16756f7799885c0741114d9ed3",
-    "openzeppelin-test-helpers": "^0.2.0",
+    "openzeppelin-test-helpers": "^0.3.0",
     "pify": "^4.0.1",
     "solhint": "^1.5.0",
     "solidity-coverage": "github:rotcivegaf/solidity-coverage#5875f5b7bc74d447f3312c9c0e9fc7814b482477",

test/examples/SampleCrowdsale.test.js

-const { BN, balance, ether, should, shouldFail, time } = require('openzeppelin-test-helpers');
+const { BN, balance, ether, shouldFail, time } = require('openzeppelin-test-helpers');
 
 const SampleCrowdsale = artifacts.require('SampleCrowdsale');
 const SampleCrowdsaleToken = artifacts.require('SampleCrowdsaleToken');
@@ -29,9 +29,6 @@ contract('SampleCrowdsale', function ([_, deployer, owner, wallet, investor]) {
   });
 
   it('should create crowdsale with correct parameters', async function () {
-    should.exist(this.crowdsale);
-    should.exist(this.token);
-
     (await this.crowdsale.openingTime()).should.be.bignumber.equal(this.openingTime);
     (await this.crowdsale.closingTime()).should.be.bignumber.equal(this.closingTime);
     (await this.crowdsale.rate()).should.be.bignumber.equal(RATE);

truffle-config.js

+require('chai/register-should');
+
 module.exports = {
   networks: {
     development: {