在 Cypress 中重载自定义命令

Question

自定义命令重载可以像函数重载一样完成吗？文档中没有对此的答案。

例如：

Cypress.Commands.add('navigateAndWaitForApi', 
  (relativePath: string, apisPath: string[], timeout?: number) => {

    let options = {};
    if (timeout !== undefined) {
      options = { timeout: TIMEOUT };
    }
    apisPath.forEach((api)=> {
      cy.intercept(`/api/${api}`).as(api);  
    })
    cy.visit(`/${relativePath}`);
    cy.wait(apisPath.map(apiPath => `@${apiPath}`), options);
});


Cypress.Commands.add('navigateAndWaitForApi', 
  (relativePath: string, apiPath: string, timeout?: number) => {
    cy.navigateAndWaitForApi(relativePath, [apiPath], timeout);
});

Answer 1

看来并非如此。命令名称navigateAndWaitForApi是总签名。

在命令定义之后添加此内容

console.log(Cypress.Commands._commands)

显示命令存储在一个对象中，由命令名称作为键控。

添加相同的命令两次，第二次将覆盖第一个。

可以在运行时对参数进行类型检查。

Cypress.Commands.add('navigateAndWaitForApi', 
  (relativePath: string, apiPaths: string|string[], timeout?: number) => {

    if (typeof apiPaths === 'string') {
      apiPaths = [apiPaths]
    } 

    let options = {};
    if (timeout !== undefined) {
      options = { timeout: TIMEOUT };
    }
    apiPaths.forEach((api)=> {
      cy.intercept(`/api/${api}`).as(api);  
    })
    cy.visit(`/${relativePath}`);

    // cy.wait(apiPaths.map(apiPath => `@${apiPath}`), options);  // look dubious

    apiPaths.forEach(apiPath => {
      cy.wait(`@${apiPath}`), options)
    })

});