[英]How to check if a material-ui MenuItem is disabled using react-testing-library
I am using Material-UI with react to build a Dropdown
component.我正在使用 Material-UI 和 react 来构建一个
Dropdown
组件。
Dropdown.tsx下拉列表.tsx
import React from "react";
import ClickAwayListener from "@material-ui/core/ClickAwayListener";
import Grow, { GrowProps } from "@material-ui/core/Grow";
import Input from "@material-ui/core/Input";
import MenuList from "@material-ui/core/MenuList";
import Paper from "@material-ui/core/Paper";
import Popper from "@material-ui/core/Popper";
import MenuItem from "@material-ui/core/MenuItem";
export default function Dropdown(props: {
onSearch: (suggestion: string) => void;
}) {
const [searchText, setSearchText] = React.useState("");
const [open, setOpen] = React.useState(false);
let searchElement: null | HTMLElement = null;
const onSearchTextChange = (event: React.ChangeEvent<HTMLInputElement>) => {
setSearchText(event.target.value);
setOpen(true);
};
const openSearchSuggestion = () => {
setOpen(true);
};
const setSearchElement = (node: null | HTMLElement) => {
searchElement = node;
};
const closeSearchSuggestion = () => {
setOpen(false);
};
const handleOnClickAway = (event: React.MouseEvent<EventTarget>) => {
if (searchElement && searchElement.contains(event.target as HTMLElement)) {
return;
}
closeSearchSuggestion();
};
const handleSearchSuggestionClick = (suggestion: string) => (
event: React.MouseEvent<EventTarget>
) => {
props.onSearch(suggestion);
};
const searchSuggestionsRenderer = (suggestion: string, index: number) => {
return (
<MenuItem
key={index}
onClick={handleSearchSuggestionClick(suggestion)}
className="suggestion-item"
id={`suggestion-item-${index}`}
disabled={suggestion === "Criteria 2"}
>
{searchText} in {suggestion}
</MenuItem>
);
};
const popperTrans = ({ TransitionProps }: { TransitionProps: GrowProps }) => {
const searchSuggestions = ["Criteria 1", "Criteria 2"];
return (
<Grow {...TransitionProps} style={{ transformOrigin: "0 0 0" }}>
<Paper className="search-suggestions-paper">
<ClickAwayListener onClickAway={handleOnClickAway}>
<MenuList>
{searchText &&
searchSuggestions &&
searchSuggestions.map(searchSuggestionsRenderer)}
</MenuList>
</ClickAwayListener>
</Paper>
</Grow>
);
};
return (
<div>
<Input
inputRef={setSearchElement}
className="search-input"
placeholder="Search"
value={searchText}
onChange={onSearchTextChange}
onFocus={openSearchSuggestion}
data-testid="searchInput"
/>
<Popper
className="search-suggestion-popper"
open={open && searchText.trim().length >= 2}
anchorEl={searchElement}
placement="bottom-start"
transition={true}
>
{popperTrans}
</Popper>
</div>
);
}
I am now testing this component using react-testing-library.我现在正在使用 react-testing-library 测试这个组件。 I want to check that the 2nd option in the dropdown is disabled.
我想检查下拉菜单中的第二个选项是否被禁用。 I tried checking that the onSearch function which is called on click of the menuitem is not called when I click the 2nd option.
我尝试检查在单击第二个选项时未调用在单击菜单项时调用的 onSearch function。
test to check option is disabled测试检查选项被禁用
test('that criteria 2 option is disabled', () => {
const props = { onSearch: jest.fn() }
const { getAllByRole, getByTestId } = render(<Dropdown {...props} />);
const Input = getByTestId('searchInput');
const TextBox = globalGetByRole(Input, 'textbox') as HTMLInputElement;
fireEvent.change(TextBox, { target: { value: 'test' } });
const MenuItems = getAllByRole('menuitem');
expect(MenuItems.length).toBe(2);
const Criteria2MenuItem = MenuItems[1];
fireEvent.click(Criteria2MenuItem);
expect(props.onSearch).toHaveBeenCalledTimes(0);
});
But this did not work.但这没有用。 The function is being called once.
function 被调用一次。 Why is this happening and how can I test what I want to test?
为什么会发生这种情况,我该如何测试我想要测试的内容?
I am using Material-UI with react to build a Dropdown
component.我正在使用 Material-UI 和 react 来构建一个
Dropdown
组件。
Dropdown.tsx下拉列表.tsx
import React from "react";
import ClickAwayListener from "@material-ui/core/ClickAwayListener";
import Grow, { GrowProps } from "@material-ui/core/Grow";
import Input from "@material-ui/core/Input";
import MenuList from "@material-ui/core/MenuList";
import Paper from "@material-ui/core/Paper";
import Popper from "@material-ui/core/Popper";
import MenuItem from "@material-ui/core/MenuItem";
export default function Dropdown(props: {
onSearch: (suggestion: string) => void;
}) {
const [searchText, setSearchText] = React.useState("");
const [open, setOpen] = React.useState(false);
let searchElement: null | HTMLElement = null;
const onSearchTextChange = (event: React.ChangeEvent<HTMLInputElement>) => {
setSearchText(event.target.value);
setOpen(true);
};
const openSearchSuggestion = () => {
setOpen(true);
};
const setSearchElement = (node: null | HTMLElement) => {
searchElement = node;
};
const closeSearchSuggestion = () => {
setOpen(false);
};
const handleOnClickAway = (event: React.MouseEvent<EventTarget>) => {
if (searchElement && searchElement.contains(event.target as HTMLElement)) {
return;
}
closeSearchSuggestion();
};
const handleSearchSuggestionClick = (suggestion: string) => (
event: React.MouseEvent<EventTarget>
) => {
props.onSearch(suggestion);
};
const searchSuggestionsRenderer = (suggestion: string, index: number) => {
return (
<MenuItem
key={index}
onClick={handleSearchSuggestionClick(suggestion)}
className="suggestion-item"
id={`suggestion-item-${index}`}
disabled={suggestion === "Criteria 2"}
>
{searchText} in {suggestion}
</MenuItem>
);
};
const popperTrans = ({ TransitionProps }: { TransitionProps: GrowProps }) => {
const searchSuggestions = ["Criteria 1", "Criteria 2"];
return (
<Grow {...TransitionProps} style={{ transformOrigin: "0 0 0" }}>
<Paper className="search-suggestions-paper">
<ClickAwayListener onClickAway={handleOnClickAway}>
<MenuList>
{searchText &&
searchSuggestions &&
searchSuggestions.map(searchSuggestionsRenderer)}
</MenuList>
</ClickAwayListener>
</Paper>
</Grow>
);
};
return (
<div>
<Input
inputRef={setSearchElement}
className="search-input"
placeholder="Search"
value={searchText}
onChange={onSearchTextChange}
onFocus={openSearchSuggestion}
data-testid="searchInput"
/>
<Popper
className="search-suggestion-popper"
open={open && searchText.trim().length >= 2}
anchorEl={searchElement}
placement="bottom-start"
transition={true}
>
{popperTrans}
</Popper>
</div>
);
}
I am now testing this component using react-testing-library.我现在正在使用 react-testing-library 测试这个组件。 I want to check that the 2nd option in the dropdown is disabled.
我想检查下拉列表中的第二个选项是否被禁用。 I tried checking that the onSearch function which is called on click of the menuitem is not called when I click the 2nd option.
我尝试检查在单击第二个选项时未调用在单击菜单项时调用的 onSearch 函数。
test to check option is disabled测试检查选项被禁用
test('that criteria 2 option is disabled', () => {
const props = { onSearch: jest.fn() }
const { getAllByRole, getByTestId } = render(<Dropdown {...props} />);
const Input = getByTestId('searchInput');
const TextBox = globalGetByRole(Input, 'textbox') as HTMLInputElement;
fireEvent.change(TextBox, { target: { value: 'test' } });
const MenuItems = getAllByRole('menuitem');
expect(MenuItems.length).toBe(2);
const Criteria2MenuItem = MenuItems[1];
fireEvent.click(Criteria2MenuItem);
expect(props.onSearch).toHaveBeenCalledTimes(0);
});
But this did not work.但这不起作用。 The function is being called once.
该函数被调用一次。 Why is this happening and how can I test what I want to test?
为什么会发生这种情况,我该如何测试要测试的内容?
I am using RTL with Jest and This work for me.我正在使用带有 Jest 的 RTL,这对我有用。
const menuitem = screen.getAllByRole('menuitem', { name: 'manue-item-name' });
screen.debug(menuitem);
expect(menuitem[0].getAttribute('aria-disabled')).toBeTruthy();
OR或者
const menuitem = screen.getAllByRole('menuitem');
screen.debug(menuitem);
expect(menuitem[0].getAttribute('aria-disabled')).toBeTruthy();
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