Reactjs 反应、情绪和笑话快照：错误：缺少属性'；：'；

我有一个可重用的组件repo和仪表板repo

我的仪表板使用了可重用repo中的许多组件，但我有一个仪表板repo测试无法通过

可重用组件repo有以下版本，所有测试均通过：

"emotion": "9.1.0",
"react-emotion": "9.1.0",
"jest-emotion": "^9.0.0",
"react-test-renderer": "16.6.3",

仪表板回购有以下版本，只有一个测试失败：

"emotion": "9.2.11",
"react-emotion": "9.2.11",
"jest-emotion": "9.2.11",
"react-test-renderer": "16.6.3",

中断测试使用

react-test呈现程序

创建组件的快照。正在测试的其中一个组件如下所示：

import styled from 'react-emotion';
import { Column } from '@commons/components';

export const StyledButtonContainer = styled('div')`
  margin-top: 20px;
  display: flex;
  button {
    flex: 1;
    margin-right: 15px;

    &:last-child {
     margin-right: 0;
    }
  }
`;

错误堆栈：

console.error node_modules/jest-emotion/dist/index.js:260
      { 
        Error: undefined:1:627: property missing ':'
          at error (/Users/path/to/my/node_modules/css/lib/parse/index.js:62:15)
          at declaration (/Users/path/to/my/node_modules/css/lib/parse/index.js:224:33)
          at declarations (/Users/path/to/my/node_modules/css/lib/parse/index.js:253:19)
          at rule (/Users/path/to/my/node_modules/css/lib/parse/index.js:561:21)
          at rules (/Users/path/to/my/node_modules/css/lib/parse/index.js:118:70)
          at stylesheet (/Users/path/to/my/node_modules/css/lib/parse/index.js:81:21)
          at Object.<anonymous>.module.exports [as parse] (/Users/path/to/my/node_modules/css/lib/parse/index.js:565:20)
          at getStylesFromClassNames (/Users/path/to/my/node_modules/jest-emotion/dist/index.js:258:40)
          at Object.print (/Users/path/to/my/node_modules/jest-emotion/dist/index.js:226:18)
          at printPlugin (/Users/path/to/my/node_modules/pretty-format/build/index.js:287:16)
          at prettyFormat (/Users/path/to/my/node_modules/pretty-format/build/index.js:485:16)
          at Object.<anonymous>.exports.serialize.data (/Users/path/to/my/node_modules/jest-snapshot/build/utils.js:172:34)
          at SnapshotState.match (/Users/path/to/my/node_modules/jest-snapshot/build/State.js:153:53)
          at _toMatchSnapshot (/Users/path/to/my/node_modules/jest-snapshot/build/index.js:197:32)
          at Object.toMatchSnapshot (/Users/path/to/my/node_modules/jest-snapshot/build/index.js:95:10)
          at Object.throwingMatcher (/Users/path/to/my/node_modules/jest-cli/node_modules/expect/build/index.js:320:33)
          at Object.toMatchSnapshot (/Users/path/to/my/__tests__/components/filter-drawer/filter-drawer.test.js:26:18)
          at Object.asyncJestTest (/Users/path/to/my/node_modules/jest-cli/node_modules/jest-jasmine2/build/jasmine_async.js:108:37)
          at resolve (/Users/path/to/my/node_modules/jest-cli/node_modules/jest-jasmine2/build/queue_runner.js:56:12)
          at new Promise (<anonymous>)
          at mapper (/Users/path/to/my/node_modules/jest-cli/node_modules/jest-jasmine2/build/queue_runner.js:43:19)
          at promise.then (/Users/path/to/my/node_modules/jest-cli/node_modules/jest-jasmine2/build/queue_runner.js:87:41)
          at <anonymous>
          at process._tickCallback (internal/process/next_tick.js:188:7)
        reason: 'property missing \':\'',
        filename: undefined,
        line: 1,
        column: 627,
        source: ';}.css-1odnewp{margin-top:20px;display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;}.css-1odnewp button{-webkit-flex:1;-ms-flex:1;flex:1;margin-right:15px;}.css-1odnewp button:last-child{margin-right:0;}' 
      }

---

正如您在下面看到的，我们有一个组件，它有时为样式if返回布尔值

props.mode=='boxed'

为false

当我们更改为三元运算符以确保字符串始终返回时，它会再次工作。 不幸的是，测试套件抛出的错误没有用处，因此需要对实际正在测试的视图中使用的所有依赖项组件进行大量挖掘

import styled from 'react-emotion';
import TextField from '../some/path';

// bad code
const StyledTextField = styled(TextField)(props => `
  ${props.mode === 'boxed' && (` 
    // some styles here
  `)}
`);

// fix
const StyledTextField = styled(TextField)(props => `
  ${props.mode === 'boxed' 
    ? (` 
      // some styles here
    `)
    : ''
  }
`);

---

我已经尝试让两个repo在相关的emotion和jest库中使用相同的版本，但这没有帮助

import styled from 'react-emotion';
import TextField from '../some/path';

// bad code
const StyledTextField = styled(TextField)(props => `
  ${props.mode === 'boxed' && (` 
    // some styles here
  `)}
`);

// fix
const StyledTextField = styled(TextField)(props => `
  ${props.mode === 'boxed' 
    ? (` 
      // some styles here
    `)
    : ''
  }
`);