Tutorial by Examples: s

Mocks are meant as test doubles, that allow interactions with the mocks to be validated, they are not meant to replace the system you are testing. Examples will often demonstrate features of Moq as follows: // Create the mock var mock = new Mock<IMockTarget>(); // Configure the mock to d...

User controls are made for reusability across ASP.NET pages, similar to master pages. Instead of sharing base page layout, user controls share group of HTML/ASP.NET built-in server controls or a specific form layout, e.g. comment submission or guest notes. A user control can contain both HTML contr...

If you want to instantiate an instance of user control inside ASPX code behind page, you need to write user control declaration on Page_Load event as follows: public partial class Default : System.Web.UI.Page { protected void Page_Load(Object sender, EventArgs e) { Control contr...

Like standard ASP.NET built-in server controls, user controls can have properties (attributes) on its definition tag. Suppose you want to add color effect on UserControl.ascx file like this: <uc:UserControl ID="UserControl1" runat="server" Color="blue" /> At t...

Sometimes you want to mock a class or an interface and have its properties behave as if they were simple getters and setters. As this is a common requirement, Moq provides a short cut method to setup all properties of a mock to store and retrieve values: // SetupAllProperties tells mock to impleme...

Sometimes you want to create a mock of a class that has a private setter: public class MockTarget { public virtual string PropertyToMock { get; private set; } } Or an interface that only defines a getter: public interface MockTarget { string PropertyToMock { get; } } In both ca...

When you can't / don't want to use Strict Mocks, you can't use MockSequence to validate call order. An alternate approach is to use callbacks to validate that the Setup expectations are being invoked in the expected order. Given the following method to test: public void MethodToTest() { _ut...

Moq provides support for validating call order using MockSequence, however it only works when using Strict mocks. So, Given the following method to test: public void MethodToTest() { _utility.Operation1("1111"); _utility.Operation2("2222"); _utility.Operation3(&...

Assume that we are using Page object model. Page Object class: import org.openqa.selenium.WebDriver; import org.openqa.selenium.WebElement; import org.openqa.selenium.firefox.FirefoxDriver; import org.openqa.selenium.support.FindBy; import org.openqa.selenium.support.PageFactory; public cla...

As an example of writing input & output, we'll take in a real value and return the value and its square until the user enters a negative number. As specified below, the read command takes two arguments: the unit number and the format specifier. In the example below, we use * for the unit number...

Given you've already installed composer up and running and it's accessible globally, you can simply create new Symfony projects as stated in the official documentation. Now you can create a new Symfony project with composer: composer create-project symfony/framework-standard-edition my_project_nam...

CppUTest is an xUnit-style framework for unit testing C and C++. It is written in C++ and aims for portability and simplicity in design. It has support for memory leak detection, building mocks, and running its tests along with the Google Test. Comes with helper scripts and sample projects for Visua...

import 'whatwg-fetch'; function checkStatus(response) { if (response.status >= 200 && response.status < 300) { return response; } const error = new Error(response.statusText); error.response = response; throw error; } function parseJSON(response) { return ...

Listbox is a control that can contains collection of objects. Listbox is similar to Combobox but in Combobox; Only selected items are visible to user. In Listbox; all items are visible to user. How to add items to ListBox? private void Form3_Load(object sender, EventArgs e) { ...

Creating a socket that uses the TCP (Transmission Control Protocol) $socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP); Make sure the socket is successfully created. The onSocketFailure function comes from Handling socket errors example in this topic. if(!is_resource($socket)) onSocketFailu...

Socket creation Create a socket that uses the TCP. It is the same as creating a client socket. $socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP); Socket binding Bind connections from a given network (parameter 2) for a specific port (parameter 3) to the socket. The second parameter is us...

socket_last_error can be used to get the error ID of the last error from the sockets extension. socket_strerror can be used to convert the ID to human-readable strings. function onSocketFailure(string $message, $socket = null) { if(is_resource($socket)) { $message .= ": " ....

A UDP (user datagram protocol) server, unlike TCP, is not stream-based. It is packet-based, i.e. a client sends data in units called "packets" to the server, and the client identifies clients by their address. There is no builtin function that relates different packets sent from the same c...

The C extension is an optional feature of Twig that offers some performance improvements of template rendering. The source code for the extension is located in the Twig source code directory at ext/twig. It compiles like any other PHP extentension: cd ext/twig phpize ./configure make make insta...

CSS Here are the minimum CSS rules that Google advises you to use, in a separate CSS file, or within an HTML style tag, e.g. <style type="text/css">...</style>. html, body { height: 100%; margin: 0; padding: 0; } #map { height: 400px; } HTML Goo...