swiftlang/swift-testing
Swift Testing
Swift Testing is a testing framework for the Swift programming language that provides a structured environment for validating code behavior. It utilizes compile-time macro discovery to register test functions and organizes them into hierarchical suites, allowing for granular control over test execution and metadata tagging.
The framework distinguishes itself through native integration with Swift concurrency models, enabling parallel test execution to reduce verification time. It supports parameterized testing, which allows developers to run identical logic across multiple input values, and provides condition-based filtering to manage test execution based on specific runtime environment requirements.
The project includes a comprehensive suite of verification primitives, including an expressive assertion library and tools for exporting test results as structured JSON data. This metadata integration facilitates the use of external tools for monitoring and analyzing test outcomes. Additionally, the framework supports cross-platform execution, including WebAssembly environments, and provides paths for migrating legacy test suites to ensure continuity during transitions.
Features
- Unit Testing Frameworks - Validates code behavior through expressive assertions and hierarchical test suites to ensure software reliability and correctness.
- Structured Concurrency Managers - Leverages native language-level task groups to run independent test cases in parallel while maintaining safe memory isolation.
- Macro-Based Discovery - Uses compile-time code generation to identify and register test functions without requiring manual suite configuration or runtime reflection.
- Swift Testing Tools - Provides a modern and expressive testing library for the Swift programming language that supports concurrent execution and parameterized test cases.
- Concurrent Code Testing - Leverages native concurrency models to execute tests in parallel and reduce total verification time.
- Parallel Test Execution - Executes multiple test suites concurrently using native concurrency features to improve overall performance.
- Assertion Libraries - Verifies code behavior using expressive assertions that capture and report evaluated values to simplify the debugging process.
- Test Execution Configurations - Allows defining runtime conditions like device requirements or operating system versions to ensure tests run in the correct environment.
- Test Metadata Export - Exports test results and event streams through stable JSON specifications to enable analysis and visualization by external tools.
- Execution Event Streams - Streams test execution progress and results as structured data to allow external tools to monitor and analyze test outcomes.
- Test Report Exporters - Generates structured JSON output from test execution results to facilitate integration with external analysis and reporting platforms.
- Conditional Skipping - Provides mechanisms to skip tests based on runtime environment requirements or system capabilities.
- Test Parameterization - Executes identical test logic across a sequence of input values to increase code coverage and reduce repetitive test definitions.
- Test Result Translators - Streams test metadata and execution logs using stable formats to allow third-party tools to process and visualize testing data.
- Hierarchical Suite Grouping - Organizes tests into nested structures to allow for granular control over execution scope and metadata tagging.
- Cross-Platform Test Execution - Verifies code functionality and compatibility by executing automated test suites within WebAssembly environments.
- Test Suite Organization - Groups related test cases into hierarchical structures and applies descriptive tags to simplify management and execution.
Star history
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