q9

node_modules/eslint-plugin-cypress/lib/rules/no-async-tests.js

@@ -0,0 +1,53 @@
+'use strict'
+
+module.exports = {
+  meta: {
+    type: 'problem',
+    docs: {
+      description: 'disallow using `async`/`await` in Cypress test cases',
+      category: 'Possible Errors',
+      recommended: true,
+      url: 'https://github.com/cypress-io/eslint-plugin-cypress/blob/master/docs/rules/no-async-tests.md',
+    },
+    schema: [],
+    messages: {
+      unexpected: 'Avoid using async functions with Cypress tests',
+    },
+  },
+
+  create (context) {
+    function isTestBlock (callExpressionNode) {
+      const { type, name } = callExpressionNode.callee
+
+      return type === 'Identifier'
+                && name === 'it' || name === 'test'
+    }
+
+    function isTestAsync (node) {
+      return node.arguments
+                && node.arguments.length >= 2
+                && node.arguments[1].async === true
+    }
+    const sourceCode = context.sourceCode ?? context.getSourceCode()
+
+    return {
+      Identifier (node) {
+        if (node.name === 'cy' || node.name === 'Cypress') {
+          const ancestors = sourceCode.getAncestors
+            ? sourceCode.getAncestors(node)
+            : context.getAncestors()
+          const asyncTestBlocks = ancestors
+          .filter((n) => n.type === 'CallExpression')
+          .filter(isTestBlock)
+          .filter(isTestAsync)
+
+          if (asyncTestBlocks.length >= 1) {
+            asyncTestBlocks.forEach((node) => {
+              context.report({ node, messageId: 'unexpected' })
+            })
+          }
+        }
+      },
+    }
+  },
+}