Agent skill

Tsp Csharp Xunit

by querylenshq in querylenshq/ef-querylens

Comprehensive xUnit testing guide for C projects. An agent skill from querylenshq/ef-querylens.

MITAuto-check passedTesting & QA

Install Tsp Csharp Xunit

skills CLI

$ npx skills add querylenshq/ef-querylens --skill tsp-csharp-xunit -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install querylenshq/ef-querylens tsp-csharp-xunit --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/querylenshq/ef-querylens.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.github/skills/tsp-csharp-xunit .claude/skills/tsp-csharp-xunit && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "tsp-csharp-xunit" agent skill from https://github.com/querylenshq/ef-querylens/tree/main/.github/skills/tsp-csharp-xunit into .claude/skills/tsp-csharp-xunit/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tsp-csharp-xunit", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/querylenshq/ef-querylens/tree/main/.github/skills/tsp-csharp-xunit

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add querylenshq/ef-querylens --skill tsp-csharp-xunit -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install querylenshq/ef-querylens tsp-csharp-xunit --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/querylenshq/ef-querylens.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.github/skills/tsp-csharp-xunit .agents/skills/tsp-csharp-xunit && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "tsp-csharp-xunit" agent skill from https://github.com/querylenshq/ef-querylens/tree/main/.github/skills/tsp-csharp-xunit into .agents/skills/tsp-csharp-xunit/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tsp-csharp-xunit", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add querylenshq/ef-querylens --skill tsp-csharp-xunit -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install querylenshq/ef-querylens tsp-csharp-xunit --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/querylenshq/ef-querylens.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.github/skills/tsp-csharp-xunit .cursor/skills/tsp-csharp-xunit && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "tsp-csharp-xunit" agent skill from https://github.com/querylenshq/ef-querylens/tree/main/.github/skills/tsp-csharp-xunit into .cursor/skills/tsp-csharp-xunit/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tsp-csharp-xunit", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/querylenshq/ef-querylens.git --path .github/skills/tsp-csharp-xunit

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add querylenshq/ef-querylens --skill tsp-csharp-xunit -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install querylenshq/ef-querylens tsp-csharp-xunit --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/querylenshq/ef-querylens.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.github/skills/tsp-csharp-xunit .gemini/skills/tsp-csharp-xunit && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "tsp-csharp-xunit" agent skill from https://github.com/querylenshq/ef-querylens/tree/main/.github/skills/tsp-csharp-xunit into .gemini/skills/tsp-csharp-xunit/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tsp-csharp-xunit", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install querylenshq/ef-querylens tsp-csharp-xunit

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add querylenshq/ef-querylens --skill tsp-csharp-xunit -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/querylenshq/ef-querylens.git skills-src && mkdir -p .github/skills && cp -r skills-src/.github/skills/tsp-csharp-xunit .github/skills/tsp-csharp-xunit && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "tsp-csharp-xunit" agent skill from https://github.com/querylenshq/ef-querylens/tree/main/.github/skills/tsp-csharp-xunit into .github/skills/tsp-csharp-xunit/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tsp-csharp-xunit", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add querylenshq/ef-querylens --skill tsp-csharp-xunit -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install querylenshq/ef-querylens tsp-csharp-xunit --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/querylenshq/ef-querylens.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.github/skills/tsp-csharp-xunit .opencode/skills/tsp-csharp-xunit && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "tsp-csharp-xunit" agent skill from https://github.com/querylenshq/ef-querylens/tree/main/.github/skills/tsp-csharp-xunit into .opencode/skills/tsp-csharp-xunit/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tsp-csharp-xunit", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: tsp-csharp-xunit
GitHub stars: 225
Token cost: ~972 tokens
SKILL.md length: 251 words
Files: 1
Skills in repo: 3
Repo updated: Sep 3, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Comprehensive xUnit testing guide for C projects. An agent skill from querylenshq/ef-querylens.

Writing unit tests
SKILL.md covers Project Setup, Test Structure, Naming Conventions and Data-Driven Tests, plus 4 more sections
Calls dotnet
Setting up test projects

What it does

Tsp Csharp Xunit is an agent skill from querylenshq/ef-querylens. Comprehensive xUnit testing guide for C projects. Use when writing unit tests, setting up test projects, creating data-driven tests, mocking dependencies, or organizing test suites.

Its SKILL.md is about 970 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Testing & QA, covering Unit testing. It works with C#. The repository describes itself as: See the SQL EF Core will generate in real-time while you write LINQ. The licence is MIT.

When your agent uses it

Writing unit tests
Setting up test projects
Creating data-driven tests
Mocking dependencies

Example prompts

“/tsp-csharp-xunit”

What it can do on your machine

Read from SKILL.md and the folder at commit fe73cf3. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
- dotnet
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Tsp Csharp Xunit loads about 972 tokens when it runs. Until then it costs about 50 tokens; SKILL.md has 251 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~50
When it runs · the whole SKILL.md, loaded when a task matches: ~972

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from querylenshq/ef-querylens at commit fe73cf3, republished under its MIT licence (© querylenshq). 251 words, ~972 tokens.

Download SKILL.mdSave it as .claude/skills/tsp-csharp-xunit/SKILL.md (or your agent's skills folder).

name: tsp-csharp-xunit
description: Comprehensive xUnit testing guide for C# projects. Use when writing unit tests, setting up test projects, creating data-driven tests, mocking dependencies, or organizing test suites.

xUnit Testing — TSP Standards

Project Setup

Test project name: {ProjectName}.Tests
Required packages: Microsoft.NET.Test.Sdk, xunit, xunit.runner.visualstudio
Recommended: FluentAssertions, NSubstitute (or Moq)
Run tests: dotnet test (use --filter for targeted runs)

Test Structure

No test class attribute required (unlike MSTest/NUnit)
Use constructor for per-test setup; implement IDisposable for teardown
Use IClassFixture<T> for shared context within a test class
Use ICollectionFixture<T> for shared context across test classes
Use IAsyncLifetime for async setup/teardown

csharp

public class OrderServiceTests : IClassFixture<DatabaseFixture>, IDisposable
{
    private readonly DatabaseFixture _db;

    public OrderServiceTests(DatabaseFixture db)
    {
        _db = db;
    }

    [Fact]
    public void CreateOrder_WithValidItems_ReturnsOrderId()
    {
        // Arrange
        var service = new OrderService(_db.Context);
        var items = new[] { new OrderItem("SKU-1", 2) };

        // Act
        var result = service.CreateOrder(items);

        // Assert
        result.Should().BeGreaterThan(0);
    }

    public void Dispose() { /* cleanup */ }
}

Naming Conventions

Test class: {ClassUnderTest}Tests
Test method: {Method}_{Scenario}_{ExpectedResult}
Examples:
- GetUser_WhenIdIsInvalid_ReturnsNotFound
- CalculateTotal_WithDiscount_AppliesPercentage
- SaveAsync_WhenCancelled_ThrowsOperationCancelled

Data-Driven Tests

[Theory] + [InlineData] for simple inline values
[Theory] + [MemberData] for method/property-based data
[Theory] + [ClassData] for reusable data generators
Use meaningful parameter names that describe the scenario

csharp

[Theory]
[InlineData(0, false)]
[InlineData(5, true)]
[InlineData(-1, false)]
public void IsValidQuantity_ReturnsExpected(int quantity, bool expected)
{
    var result = OrderValidator.IsValidQuantity(quantity);

    result.Should().Be(expected);
}

Assertions

Prefer FluentAssertions when available:
- result.Should().Be(expected)
- collection.Should().HaveCount(3).And.Contain(x => x.IsActive)
- act.Should().ThrowAsync<InvalidOperationException>()
Built-in xUnit assertions as fallback:
- Assert.Equal, Assert.True, Assert.Throws<T>
- Assert.Contains / Assert.DoesNotContain for collections
One logical behavior per test — multiple assertions are fine if testing one concept

Mocking

Prefer NSubstitute for readability; Moq is also acceptable
Mock interfaces, not concrete classes
Verify interactions only when the interaction IS the behavior being tested
Avoid over-mocking — if you're mocking more than 3 dependencies, the class may need refactoring

csharp

var repo = Substitute.For<IOrderRepository>();
repo.GetByIdAsync(42, Arg.Any<CancellationToken>())
    .Returns(new Order { Id = 42 });

var service = new OrderService(repo);
var result = await service.GetOrderAsync(42, CancellationToken.None);

result.Should().NotBeNull();
result.Id.Should().Be(42);

Test Organization

Group tests by feature or component
Use [Trait("Category", "Integration")] for categorization
Skip tests with Skip = "reason" when conditionally disabled
Use ITestOutputHelper for diagnostic output (not Console.WriteLine)

Rules

Tests must run in any order and in parallel — no shared mutable state
Avoid disk I/O — use in-memory alternatives or mocks
No Thread.Sleep — use Task.Delay with cancellation tokens in async tests
Every new or changed public API must have corresponding tests

Files

Just SKILL.md in .github/skills/tsp-csharp-xunit of querylenshq/ef-querylens.

Open the folder on GitHubat commit fe73cf3

Compare with similar skills

Tsp Csharp Xunit next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Tsp Csharp Xunit compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Tsp Csharp Xunit this skillquerylenshq/ef-querylens	225	—	~972	Automated safety check: Pass	MIT	1 mo ago
ScottPlot Test RunnerScottPlot/ScottPlot	6.8k	—	~308	Automated safety check: Pass	MIT	1 mo ago
Gdunit DriverRandallLiuXin/GodotMaker	549	1 repos	~3.3k	Automated safety check: Pass	Custom licence	21 days ago
Verifyvaldisiljuconoks/LocalizationProvider	180	—	~159	Automated safety check: Pass	Apache-2.0	3 mo ago
Unit TestsWildGums/Orc.LicenseManager	108	—	~2.1k	Automated safety check: Pass	Custom licence	today
Csharp Testingaffaan-m/ECC	275k	1 repos	~2.2k	Automated safety check: Pass	MIT	3 days ago

Similar skills

ScottPlot Test Runner
ScottPlot/ScottPlot
Run or add ScottPlot 5 tests. Use for unit-test and cookbook-test work; unless explicitly asked otherwise, restrict manual test execution to the Unit Tests…
6.8k GitHub stars~308 tokensUpdated 1 mo ago
Testing & QAAuto-check passed
Gdunit Driver
RandallLiuXin/GodotMaker
Run gdUnit4 unit tests and parse results into structured output.
549 GitHub starsUsed in 1 repo~3.3k tokens
Testing & QAAuto-check passed
Verify
valdisiljuconoks/LocalizationProvider
Build the solution and run unit tests to verify changes are correct.
180 GitHub stars~159 tokensUpdated 3 mo ago
Testing & QAAuto-check passed
Unit Tests
WildGums/Orc.LicenseManager
Write unit tests for this repository using NUnit following repository best practices.
108 GitHub stars~2.1k tokensUpdated today
Testing & QAAuto-check passed
Csharp Testing
affaan-m/ECC
C and .NET testing patterns with xUnit, FluentAssertions, mocking, integration tests, and test organization best practices.
275k GitHub starsUsed in 1 repo~2.2k tokens
Testing & QAAuto-check passed
Csharp Mstest
github/awesome-copilot
Official
Get best practices for MSTest 3.x/4.x unit testing, including modern assertion APIs and data-driven tests
40k GitHub starsUsed in 1 repo~3.5k tokens
Testing & QAAuto-check passed

Questions about Tsp Csharp Xunit

What does Tsp Csharp Xunit do?

Comprehensive xUnit testing guide for C projects. An agent skill from querylenshq/ef-querylens. Tsp Csharp Xunit is an agent skill from querylenshq/ef-querylens. Comprehensive xUnit testing guide for C projects.

When should I use Tsp Csharp Xunit?

Tsp Csharp Xunit fits situations like: writing unit tests; setting up test projects; creating data-driven tests; mocking dependencies.

How do I install Tsp Csharp Xunit in Claude Code?

Run `npx skills add querylenshq/ef-querylens --skill tsp-csharp-xunit -a claude-code`. Or copy the skill folder (.github/skills/tsp-csharp-xunit in querylenshq/ef-querylens) into .claude/skills/tsp-csharp-xunit in your project. Claude Code loads it when a task matches its description.

How do I install Tsp Csharp Xunit in Codex?

Run `npx skills add querylenshq/ef-querylens --skill tsp-csharp-xunit -a codex`. Or copy the skill folder (.github/skills/tsp-csharp-xunit in querylenshq/ef-querylens) into .agents/skills/tsp-csharp-xunit in your project. Codex loads it when a task matches its description.

Can I use Tsp Csharp Xunit in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add querylenshq/ef-querylens --skill tsp-csharp-xunit -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/tsp-csharp-xunit, .gemini/skills/tsp-csharp-xunit, .github/skills/tsp-csharp-xunit and .opencode/skills/tsp-csharp-xunit in your project.

What does Tsp Csharp Xunit need to run?

Going by SKILL.md and its folder, Tsp Csharp Xunit needs the command-line tools its instructions call (dotnet).

Does Tsp Csharp Xunit access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Tsp Csharp Xunit safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Tsp Csharp Xunit use?

Tsp Csharp Xunit is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Tsp Csharp Xunit use?

About 972 tokens (SKILL.md is roughly 3.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Tsp Csharp Xunit?

Skills that share tags, products or a category with Tsp Csharp Xunit: ScottPlot Test Runner (ScottPlot/ScottPlot, 6.8k stars), Gdunit Driver (RandallLiuXin/GodotMaker, 549 stars), Verify (valdisiljuconoks/LocalizationProvider, 180 stars) and Unit Tests (WildGums/Orc.LicenseManager, 108 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Tsp Csharp Xunit?

querylenshq (a GitHub organization) maintains it in querylenshq/ef-querylens, which has 225 GitHub stars. The repository holds 3 skills in this directory. The repository was last updated on September 3, 2026.

Source: querylenshq/ef-querylens on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Tsp Csharp Xunit

Install Tsp Csharp Xunit

Facts

At a glance

What it does

When your agent uses it

Example prompts

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

xUnit Testing — TSP Standards

Project Setup

Test Structure

Naming Conventions

Data-Driven Tests

Assertions

Mocking

Test Organization

Rules

Files

Compare with similar skills

Similar skills

ScottPlot Test Runner

Gdunit Driver

Verify

Unit Tests

Csharp Testing

Csharp Mstest

More from querylenshq/ef-querylens

Tsp Csharp

Release

Questions about Tsp Csharp Xunit

Install Tsp Csharp Xunit

Facts

At a glance

What it does

When your agent uses it

Example prompts

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

xUnit Testing — TSP Standards

Project Setup

Test Structure

Naming Conventions

Data-Driven Tests

Assertions

Mocking

Test Organization

Rules

Files

Compare with similar skills

Similar skills

More from querylenshq/ef-querylens

Related

Questions about Tsp Csharp Xunit