Provide custom Jest environment with mocked console

jest.config.js

@@ -37,4 +37,5 @@ module.exports = {
   },
   transformIgnorePatterns: ['node_modules/(?!(@gitlab/ui)/)'],
   timers: 'fake',
+  testEnvironment: '<rootDir>/spec/frontend/environment.js',
 };

spec/frontend/environment.js

+/* eslint-disable import/no-commonjs */
+
+const { ErrorWithStack } = require('jest-util');
+const JSDOMEnvironment = require('jest-environment-jsdom');
+
+class CustomEnvironment extends JSDOMEnvironment {
+  constructor(config, context) {
+    super(config, context);
+    Object.assign(context.console, {
+      error(...args) {
+        throw new ErrorWithStack(
+          `Unexpected call of console.error() with:\n\n${args.join(', ')}`,
+          this.error,
+        );
+      },
+
+      warn(...args) {
+        throw new ErrorWithStack(
+          `Unexpected call of console.warn() with:\n\n${args.join(', ')}`,
+          this.warn,
+        );
+      },
+    });
+  }
+}
+
+module.exports = CustomEnvironment;