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C# Testing

Yeh article C# programming me testing ka complete guide hai — unit testing, integration testing,…

Overview

C# Testing — Quick Facts

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Property: Detail

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Topic: C# Testing

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Category: Software Engineering / Quality…

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Primary Framework: xUnit.net (most popular, .NET team…

Topic 1

Infobox

📚 | Property | Detail | |---|---| | Topic | C# Testing | | Category | Software Engineering…

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Testing Kya Hai

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Kya expected behavior mil raha hai?

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Kya edge cases handle ho rahe hain?

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Kya changes ne kuch break to nahi…

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Testing Pyramid

🎯 Structure ` /\ / \ E2E Tests (few) / \ → Selenium, Playwright /------\ / \ Integration…

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Unit Testing Frameworks

⭐ Framework Comparison | Feature | xUnit | NUnit | MSTest | |---|---|---|---| | Test…

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Test Project Setup

🔑 Creating Test Project `bash Solution me test project add dotnet new xunit -n…

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AAA Pattern

✨ Arrange-Act-Assert Har test ke 3 clear sections: `csharp [Fact] public void…

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Assertions

🌟 xUnit Built-in Assert `csharp // Equality Assert.Equal(expected, actual);…

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Mocking Frameworks

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Database call nahi karna (slow,…

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External API call nahi karna…

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Email send nahi karna (side effect)

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Focus: sirf tested class ka…

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Dependency Injection aur Testability

📚 DI Makes Code Testable `csharp // ── UNTESTABLE (hard dependency) ───────── public class…

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Integration Testing

💡 ASP.NET Core Integration Tests `csharp // WebApplicationFactory — in-memory test server…

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Test Data Generation

🎯 AutoFixture (Random Test Data) `csharp using AutoFixture; [Fact] public void…

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Code Coverage

⭐ What is Code Coverage Code coverage measures: kitna percent code tests ne execute kiya |…

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TDD — Test-Driven Development

🔑 Red-Green-Refactor Cycle ` Step 1: RED → Write a failing test (code doesn't exist yet) →…

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BDD — Behavior-Driven Development

✨ SpecFlow (Gherkin Syntax) `gherkin OrderPlacement.feature Feature: Order Placement As a…

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Architecture Testing

🌟 NetArchTest `csharp using NetArchTest.Rules; [Fact] public void…

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Performance Testing

🚀 BenchmarkDotNet `csharp using BenchmarkDotNet.Attributes; using BenchmarkDotNet.Running;…

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CI/CD Testing Pipeline

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uses: actions/checkout@v4

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name: Setup .NET

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name: Restore

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name: Build

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Testing Ecosystem — Mermaid

💡 `mermaid flowchart TD DEV["Developer writes code"] --> UT["Unit Tests"] DEV -->…

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Common Mistakes

🎯 1. Testing Implementation, Not Behavior ` /* WRONG: Test checks internal method call…

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Best Practices

⭐ 1. Name Tests Descriptively MethodName_Scenario_ExpectedResult pattern.…

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Interview Perspective

🔑 Q1: Unit testing aur integration testing me kya difference hai? A: Unit testing single…

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Glossary

✨ | Term | Definition | |---|---| | Unit Test | Single class/method ko isolation me test…

Diagram

Visual Flow

📊 Diagram visualization — details in narration

Quiz — Question 1

C# Testing ka sabse sahi definition kya hai?

Quick Quiz

Quiz — Question 2

C# Testing ka 'Topic' kya hai?

Complete! 🎉

C# Testing Complete!

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C# Testing Complete

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