chore: bump jest from 25.5.4 to 26.0.1

web3.js/.eslintignore

@@ -5,3 +5,4 @@
 /flow-typed
 /lib
 /module.flow.js
+/jest-environment.js

web3.js/jest-environment.js

@@ -0,0 +1,27 @@
+const NodeEnvironment = require('jest-environment-node');
+
+class CustomEnvironment extends NodeEnvironment {
+  constructor(config, context) {
+    Object.assign(config.globals, {
+      Uint8Array,
+      ArrayBuffer,
+    });
+    super(config, context);
+    this.testPath = context.testPath;
+    this.docblockPragmas = context.docblockPragmas;
+  }
+
+  async setup() {
+    await super.setup();
+  }
+
+  async teardown() {
+    await super.teardown();
+  }
+
+  runScript(script) {
+    return super.runScript(script);
+  }
+}
+
+module.exports = CustomEnvironment;

web3.js/package.json

@@ -67,6 +67,9 @@
     "test:live": "npm run build:fixtures && cross-env NODE_ENV=test TEST_LIVE=1 jest --useStderr",
     "test:watch": "npm run build:fixtures && cross-env NODE_ENV=test jest --watch --useStderr"
   },
+  "jest": {
+    "testEnvironment": "./jest-environment"
+  },
   "dependencies": {
     "@babel/runtime": "^7.3.1",
     "bn.js": "^5.0.0",
@@ -116,7 +119,7 @@
     "flow-bin": "0.123.0",
     "flow-typed": "3.1.0",
     "fs-file-tree": "1.1.0",
-    "jest": "25.5.4",
+    "jest": "26.0.1",
     "marked": "^0.8.0",
     "prettier": "^2.0.0",
     "rimraf": "3.0.2",