# How to Run Tests for IPATool: Step‑by‑Step Guide

> Learn how to run tests for IPATool with this step-by-step guide. Execute go generate and go test commands to ensure your IPATool code is robust and error-free.

- Repository: [Majd/ipatool](https://github.com/majd/ipatool)
- Tags: how-to-guide
- Published: 2026-09-06

---

**To run tests for IPATool, execute `go generate ./...` to create mocks and embedded assets, then run `go test -v ./...` to compile and execute the full unit test suite across all packages.**

IPATool is a pure‑Go command‑line application for searching and downloading iOS IPA files from the App Store. Because the repository relies on code generation for mock implementations and static assets, running the test suite requires executing a generation step before the standard test command will compile successfully.

## Step‑by‑Step Test Execution

The IPATool repository follows standard Go testing conventions. Validating the codebase locally requires two primary commands, followed by optional package‑specific targeting.

### Generate Required Code

The project uses `go:generate` directives (for example, to generate mocks with `go‑mock` and embed static assets). These generated files must exist before the compiler can resolve dependencies.

Run the generation command from the repository root:

```bash
go generate ./...

```

Skipping this step results in compilation errors, as test files in packages like `pkg/appstore` and `internal/sap/unicorn` import generated code that does not exist prior to execution.

### Execute the Complete Test Suite

Once generation completes, invoke the full test suite. The `go.mod` file declares the module as `github.com/majd/ipatool/v2` and requires Go 1.25.

Execute all tests with verbose output:

```bash
go test -v ./...

```

This command recursively discovers every `*_test.go` file in the repository, including tests for the **keychain** credential store, the **appstore** client, and the **unicorn** download engine. The `-v` flag prints individual test names and outcomes, providing immediate feedback on failures.

### Target Specific Packages

For rapid iteration during development, limit the test scope to a single package. For example, to validate only the App Store logic:

```bash
go test -v ./pkg/appstore

```

Similarly, you can test the secure storage layer or the extraction engine in isolation:

```bash
go test -v ./pkg/keychain
go test -v ./internal/sap/unicorn

```

## Understanding the Test Infrastructure

IPATool’s testing strategy combines unit tests for isolated packages with continuous integration across multiple platforms.

### Critical Packages Under Test

The repository organizes testable code into several key directories, each containing corresponding `*_test.go` files:

- **`pkg/keychain/`** – Validates secure credential storage operations, including get, set, and remove functionality.
- **`pkg/appstore/`** – Tests the core client logic for App Store API interactions and IPA metadata handling.
- **`internal/sap/unicorn/`** – Exercises the engine responsible for IPA download and extraction, ensuring binary manipulation logic functions correctly.

### CI/CD Validation

The GitHub Actions workflow defined in [`.github/workflows/unit-tests.yml`](https://github.com/majd/ipatool/blob/main/.github/workflows/unit-tests.yml) enforces cross‑platform reliability. The workflow executes `go generate ./...` followed by `go test -v ./...` across three runners: Ubuntu, Windows, and Windows‑ARM. This matrix guarantees that the command sequence works identically on all supported operating systems.

According to the IPATool source code, the **README.md** file (lines 99‑104) documents these exact commands for developers who prefer to verify functionality locally rather than relying on CI.

## Summary

- **Generate first**: Always execute `go generate ./...` before testing to create mocks and embedded assets required for compilation.
- **Test broadly**: Use `go test -v ./...` to run the complete suite across all packages in the `github.com/majd/ipatool/v2` module.
- **Target narrowly**: Run `go test -v ./pkg/appstore` (or similar) to test specific components during development.
- **Mirror CI**: The workflow in [`.github/workflows/unit-tests.yml`](https://github.com/majd/ipatool/blob/main/.github/workflows/unit-tests.yml) validates the same commands on Linux, Windows, and Windows‑ARM runners.

## Frequently Asked Questions

### What Go version is required to run IPATool tests?

The `go.mod` file at the repository root specifies **Go 1.25** as the minimum required version. Attempting to compile or test the project with earlier Go versions will likely result in build failures due to language features or dependency requirements used throughout the codebase.

### Why do tests fail with "undefined" errors before running `go generate`?

IPATool relies on code generation to produce mock interfaces and embedded static assets. Packages such as `pkg/appstore` and `internal/sap/unicorn` import these generated types, which do not exist in the repository until you execute `go generate ./...`. Running generation creates the necessary files, allowing the compiler to resolve all symbols.

### How do I run the exact same tests as the CI pipeline?

Execute the two commands found in [`.github/workflows/unit-tests.yml`](https://github.com/majd/ipatool/blob/main/.github/workflows/unit-tests.yml): first `go generate ./...`, then `go test -v ./...`. The CI pipeline runs these commands on Ubuntu, Windows, and Windows‑ARM runners, ensuring the test suite passes across all supported platforms using the same sequence you run locally.

### Where are the test files located in the repository?

Test files follow Go naming conventions, using the pattern `*_test.go`. You can find them alongside implementation code in directories such as `pkg/keychain/`, `pkg/appstore/`, and `internal/sap/unicorn/`. Running `go test -v ./...` from the root discovers and executes every test file automatically.