spy

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I would like to add an open price as a new row at the end of a "SPY" data frame that was produce using the quantmod package, I used the following code in order to rbind the new row but I got an error # rm(list = ls()) # generally considered as bad manner in an MWE require(quantmod) options(scipen=999) spy <- getSymbols(("SPY") , src = 'yahoo', from = '2016-01-01', auto.assign = T) spy<-cbind(SPY) tail(SPY) SPY.Open SPY.High SPY.Low SPY.Close SPY.Volume SPY.Adjusted 2016-01-14 189.55 193.26 187.66 191.93 240795600 191.93 2016-01-15 186.77 188

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm trying to use PowerMockito to create a spy of a final class but I keep getting the following error, even though I am using PowerMockito's spy() method in place of Mockito's: java.lang.IllegalArgumentException: Cannot subclass final class class com.whoever.WidgetUploadClient My test case looks something like this: ... import static org.powermock.api.mockito.PowerMockito.mock; import static org.powermock.api.mockito.PowerMockito.spy; @RunWith(PowerMockRunner.class) @PowerMockRunnerDelegate(RobolectricTestRunner.class) @PowerMockIgnore({

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Problem In our codebase we have a problem with sinon which can be reproduced with the code snipped below. The thing is that it seems to be that indirect called spies return force false , the console.log clearly states that the method is called but the spy.called remains false . Code The following CDN's can be used for the html: //cdnjs.cloudflare.com/ajax/libs/sinon.js/1.7.3/sinon-min.js //cdnjs.cloudflare.com/ajax/libs/require.js/2.1.14/require.min.js main.js require(['myModule'], function(module) { //using sinon var methodCallerSpy = sinon

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am trying to test my android project by Mockito. But it seems that spy does not work as I think. Isn't a spy object is equal to a real object? when I try to call a method of spy object, testing result alway is AbstractMethodError(just as follows). java.lang.AbstractMethodError: abstract method not implemented at com.google.dexmaker.mockito.InvocationHandlerAdapter$ProxiedMethod.isAbstract(InvocationHandlerAdapter.java) at org.mockito.internal.invocation.InvocationImpl.callRealMethod(InvocationImpl.java:109) at org.mockito.internal.stubbing

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I've looked at various suggestions to solve testing a class property with no success and was wondering if anyone could possibly cast a little more light on where I may be going wrong, here are the tests I've tried all with the error Expected mock function to have been called, but it was not called. Search.jsx import React, { Component } from 'react' import { func } from 'prop-types' import Input from './Input' import Button from './Button' class SearchForm extends Component { static propTypes = { toggleAlert: func.isRequired } constructor()

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Jasmine's spyOn is good to change a method's behavior, but is there any way to change a value property (rather than a method) for an object? the code could be like below: spyOn(myObj, 'valueA').andReturn(1); expect(myObj.valueA).toBe(1); 回答1: In February 2017, they merged a PR adding this feature, they released in April 2017. so to spy on getters/setters you use: const spy = spyOnProperty(myObj, 'myGetterName', 'get'); where myObj is your instance, 'myGetterName' is the name of that one defined in your class as get myGetterName() {} and the

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have a DataFrame "df" with (time,ticker) Multiindex and bid/ask/etc data columns: tod last bid ask volume time ticker 2013-02-01 SPY 1600 149.70 150.14 150.17 1300 SLV 1600 30.44 30.38 30.43 3892 GLD 1600 161.20 161.19 161.21 3860 I would like to select a second-level (level=1) cross section using multiple keys. Right now, I can do it using one key, i.e. df.xs('SPY', level=1) which gives me a timeseries of SPY. What is the best way to select a multi-key cross section, i.e. a combined cross-section of both SPY and GLD, something like: df.xs

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I want partial mocking on Httpsession but for that i need to spy it instead of mocking it , and it's a interface I can't get without request object which is already mocked. please help. In another word , how can I get a object of HttpSession without HttpServletRequest object. MORE DETAIL:: There is a servlet I want to test , servlet have session and puts "loginBean" (which contain loged in user related info) inside session, which I have mocked already and working fine , now IN GUI level , there are 2 tab , DetailSet1 , detailsSet2 , when you

这道题是紫书里的，以下的主代码也来自紫书，但笔者会在这里做一些补充说明。 本题中把单向流逝的时间作为拓补序，用时刻和位置作为状态参数， dp【i】【j】表示在i车站，j时刻时还需等待的最少时间（其实通常我们把表示阶段的放在前面） 边界是这个： dp[n][tm]=0; for(int i=1;i<n;i++) dp[i][tm]=inf;//时间到了，人却不在车站，任务失败 主代码如下 for(int j=tm-1;j>=0;j--) for(int i=1;i<=n;i++) { dp[i][j]=dp[i][j+1]+1; if(has_train[i][j][0]&&i<n&&j+t[i]<=tm) dp[i][j]=min(dp[i][j],dp[i+1][j+t[i]]); if(has_train[i][j][1]&&i>1&&j+t[i-1]<=tm) dp[i][j]=min(dp[i][j],dp[i-1][j+t[i-1]]); } 第二行其实是可以改成 for(int i=n;i>=1;i--)的，因为 dp[j+1][ ]的情况都已经打出来了，外循环和内循环的位置不可交换，因为我们的拓补序是时间（逆流的）； 关于has_train[ ][ ][ ]我的打法是这样的，过了uva的评测，但是效率较低 cin>>m1; for(int i=1;i<=m1;i++)