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prefer-expect-resolves.ts
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prefer-expect-resolves.ts
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import {
AST_NODE_TYPES,
TSESTree,
} from '@typescript-eslint/experimental-utils';
import { createRule, isExpectCall } from './utils';
export default createRule({
name: __filename,
meta: {
docs: {
description:
'Prefer `await expect(...).resolves` over `expect(await ...)` syntax',
recommended: false,
},
fixable: 'code',
messages: {
expectResolves: 'Use `await expect(...).resolves instead.',
},
schema: [],
type: 'suggestion',
},
defaultOptions: [],
create: context => ({
CallExpression(node: TSESTree.CallExpression) {
const [awaitNode] = node.arguments;
if (
isExpectCall(node) &&
awaitNode?.type === AST_NODE_TYPES.AwaitExpression
) {
context.report({
node: node.arguments[0],
messageId: 'expectResolves',
fix(fixer) {
return [
fixer.insertTextBefore(node, 'await '),
fixer.removeRange([
awaitNode.range[0],
awaitNode.argument.range[0],
]),
fixer.insertTextAfter(node, '.resolves'),
];
},
});
}
},
}),
});