Open-Source Testing · Quick

Quick

Quick is a behavior-driven development (BDD) testing framework for Swift and Objective-C that uses human-readable syntax inspired by RSpec. It integrates with Nimble for assertions and supports installation via CocoaPods and Swift Package Manager.

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Source: GitHub — github.com/Quick/Quick

9.8k

GitHub stars

895

Forks

Swift

Primary language

Apache-2.0

License (OSI-approved)

Key facts

Objective fields from the source. Values we can't verify are shown as “Unknown” rather than guessed.

Field	Value
Repository	Quick/Quick
Owner	Quick
Primary language	Swift
License	Apache-2.0 — OSI-approved
Stars	9.8k
Forks	895
Open issues	48
Latest release	v7.6.2 (2024-07-23)
Last updated	2026-05-18
Source	https://github.com/Quick/Quick

What Quick is

Quick provides a spec-based testing DSL using closures (describe, context, it blocks) compiled into XCTest-compatible test suites. It executes within Xcode's test runner and uses private APIs for deeper IDE integration, but is explicitly not shipped in production binaries.

Quickstart

Get the Quick source

Clone the repository and explore it locally.

terminalbash

1git clone https://github.com/Quick/Quick.git2cd Quick3# follow the project's README for install & configuration

Need it deployed, integrated, or customized instead? DEV.co ships production installs.

Best use cases

BDD-style unit testing for iOS/macOS apps

Teams preferring readable, narrative test structure over imperative XCTest assertions can use Quick's describe/context/it syntax with Nimble matchers for clearer test intent.

Swift and Objective-C mixed codebases

Projects with legacy Objective-C alongside modern Swift benefit from a unified testing framework that supports both languages in a single test suite.

Test-driven development workflows

Developers practicing TDD gain productivity from Quick's fluent DSL that reduces boilerplate and makes test specifications read closer to requirements.

Implementation considerations

Nimble must be installed and imported separately; verify version compatibility against the provided Swift version matrix.
Quick uses private Xcode APIs for enhanced integration; Apple may change these APIs in future releases, potentially breaking behavior.
Installation via CocoaPods or SPM; ensure target dependency configuration isolates Quick to test targets only.
Spec-based DSL requires learning curve for teams accustomed to traditional XCTest; provide training or documentation review.
Test discovery is automatic; ensure test class naming follows QuickSpec pattern to avoid silent failures.

When to avoid it — and what to weigh

Require cutting-edge Swift versions immediately — Quick v7.6.2 targets Swift 5.2+; teams on Swift 6.0+ should verify compatibility before adoption.
Need performance-critical test execution — Quick's use of private APIs and reflective spec discovery may introduce overhead; projects with thousands of tests should benchmark against native XCTest.
Using non-Apple platforms — Quick is tightly coupled to iOS/macOS/tvOS/watchOS development; it is not a cross-platform testing solution.
Require a single, monolithic test binary — Quick explicitly must not be shipped in production binaries (App Store rejection risk); test-only test suites are mandatory.

License & commercial use

Quick is licensed under Apache License 2.0, a permissive OSI-approved license.

Apache 2.0 permits commercial use, modification, and distribution with attribution and license inclusion. Quick is development/test-only and is not shipped in binaries, so commercial licensing risk is minimal. Verify your use of any dependencies (Nimble) for their respective licenses.

DEV.co evaluation signals

Editorial assessment — not user reviews. Directional, with an explicit confidence level.

Signal	Assessment
Maintenance	Active
Documentation	Strong
License clarity	Clear
Deployment complexity	Low
DEV.co fit	Good
Assessment confidence	High

Security considerations

Quick uses private Xcode APIs, which may be a future compatibility risk but do not pose a runtime security exposure since tests do not ship in binaries. No known vulnerability disclosures in the data provided. Code review and dependency audit (especially Nimble) are standard practice.

Alternatives to consider

XCTest

Apple's native testing framework for Swift/Objective-C; requires more verbose assertion syntax but has zero external dependencies and guaranteed API stability.

Nimble (standalone)

Assertion library only; provides expressive matchers but requires XCTest or Quick as the test runner; lighter weight if BDD DSL is not needed.

Ginkgo

BDD framework for Go; cross-platform and syntax-similar to Quick, but not applicable to iOS/macOS Swift projects.

Software development agency

Build on Quick with DEV.co software developers

Evaluate Quick's compatibility with your current Swift version and team workflow. Start with the installation guide and a small test suite to validate the syntax fit.

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Related open-source tools

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swift-testing rapid Nimble

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Quick FAQ

Is Quick included in the app binary shipped to App Store?

No. Quick must only be in test targets. Including it in the binary will cause App Store rejection. The README explicitly warns against this.

Do I need Nimble to use Quick?

Nimble is not required but is strongly recommended. Quick provides the test structure; Nimble provides matcher-based assertions. XCTAssert statements work in Quick but are less readable.

What Swift versions does Quick v7.6.2 support?

According to the README compatibility table, v7.6.2 supports Swift 5.2 and later. Exact minimum version for v7.6.2 is not stated; check the release notes or source.

Does Quick collect analytics or telemetry?

No. The README privacy statement explicitly states Quick does not and will never collect analytics or tracking.

Software developers & web developers for hire

Adopting Quick is usually one piece of a larger software development effort. As a software development agency, DEV.co provides software development services and web development expertise — pairing senior software developers and web developers with your team to design, build, and operate open-source testing software in production.

Ready to adopt BDD testing for your Swift project?

Evaluate Quick's compatibility with your current Swift version and team workflow. Start with the installation guide and a small test suite to validate the syntax fit.

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