---
title: "Diff algorithm tests"
description: "Tests are specified as"
type: skill
canonical_url: https://claudary.paisolsolutions.com/skills/readme-323
source: "Claudary"
difficulty: intermediate
author: "Claude Code Knowledge Pack"
date: 2026-07-10T11:36:23.836Z
license: CC-BY-4.0
attribution: "Diff algorithm tests — Claudary (https://claudary.paisolsolutions.com/skills/readme-323)"
---

# Diff algorithm tests
Tests are specified as

## Overview

# Diff algorithm tests

Tests are specified as

```
<CODE BEFORE>

---

<CODE AFTER>

---

<EXPECTED DIFF>
```

`---` is the delimeter, and surrounding whitespace will be trimmed.

The expected diff can be generated with the `displayDiff` function.

We make this explicit instead of comparing to the output of `myersDiff` in case the output from that is either unattainable or not exactly what we want.

In order to generate the expected diff, you can first leave it empty and then run the test. The test will catch this and write the _computed_ diff to the test file. It is up to you to correct this to the expected diff.

---

Source: [Claudary](https://claudary.paisolsolutions.com/skills/readme-323) · https://claudary.paisolsolutions.com