chore: bump jest from 25.5.4 to 26.0.1

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;