basic skeleton rewritten in reactjs

public/node_modules/eslint-plugin-jest/lib/rules/no-duplicate-hooks.js

@@ -0,0 +1,68 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _utils = require("./utils");
+
+const newHookContext = () => ({
+  beforeAll: 0,
+  beforeEach: 0,
+  afterAll: 0,
+  afterEach: 0
+});
+
+var _default = (0, _utils.createRule)({
+  name: __filename,
+  meta: {
+    docs: {
+      category: 'Best Practices',
+      description: 'Disallow duplicate setup and teardown hooks',
+      recommended: false
+    },
+    messages: {
+      noDuplicateHook: 'Duplicate {{hook}} in describe block'
+    },
+    schema: [],
+    type: 'suggestion'
+  },
+  defaultOptions: [],
+
+  create(context) {
+    const hookContexts = [newHookContext()];
+    return {
+      CallExpression(node) {
+        if ((0, _utils.isDescribeCall)(node)) {
+          hookContexts.push(newHookContext());
+        }
+
+        if ((0, _utils.isHook)(node)) {
+          const currentLayer = hookContexts[hookContexts.length - 1];
+          currentLayer[node.callee.name] += 1;
+
+          if (currentLayer[node.callee.name] > 1) {
+            context.report({
+              messageId: 'noDuplicateHook',
+              data: {
+                hook: node.callee.name
+              },
+              node
+            });
+          }
+        }
+      },
+
+      'CallExpression:exit'(node) {
+        if ((0, _utils.isDescribeCall)(node)) {
+          hookContexts.pop();
+        }
+      }
+
+    };
+  }
+
+});
+
+exports.default = _default;