All Versions
18
Latest Version
Avg Release Cycle
210 days
Latest Release
227 days ago

Changelog History
Page 1

  • v1.9.0 Changes

    October 28, 2025

    ✅ 🤖 AI-Powered Test Generation

    ✅ This release adds AI-powered test case generation using local LLMs via Ollama, enabling automatic generation of intelligent, realistic test cases.

    ✨ Key Features

    • ✅ 🧠 Intelligent Test Cases : AI analyzes function implementation to generate realistic test values, edge cases, and error conditions
    • 🏠 Local-First & Private : Uses Ollama to run LLMs locally - your code never leaves your machine
    • ⚡ Fast Small Models : Default qwen2.5-coder:0.5b model (400MB) generates tests in seconds
    • 🎯 Smart Coverage : Automatically identifies edge cases, error conditions, and validation logic
    • 🔧 Flexible : Support for simple types, complex types, methods, variadic params, and multiple return values
    • 🔧 📊 Configurable : Adjust min/max test cases, choose different models, or use custom endpoints

    🚀 Quick Start

    # Install Ollama (one-time setup)curl -fsSL https://ollama.com/install.sh|sh
ollama serve&ollama pull qwen2.5-coder:0.5b# Generate tests with AIgotests -all -ai -w yourfile.go

    📝 Example

    Given this function:

    funcCalculateDiscount(pricefloat64,percentageint) (float64,error) {ifprice\<0{return0,errors.New("price cannot be negative")
    }ifpercentage\<0||percentage\>100{return0,errors.New("percentage must be between 0 and 100")
    }returnprice-(price\*float64(percentage)/100.0),nil}

    AI generates:

    • ✅ ✅ Valid input test case
    • ✅ Negative price error case
    • ✅ Invalid percentage error case
    • ✅ Proper error handling and assertions

    🔧 🎛️ Configuration Options

    # Use different modelgotests -all -ai -ai-model llama3.2:latest -w file.go# Generate specific number of test cases (min = max)gotests -all -ai -ai-min-cases 5 -ai-max-cases 5 -w file.go# Generate range of test cases (AI chooses 3-7)gotests -all -ai -ai-min-cases 3 -ai-max-cases 7 -w file.go# Custom Ollama endpointgotests -all -ai -ai-endpoint http://custom:11434 -w file.go

    🔒 🔒 Privacy & Security

    • 0️⃣ ✅ Local-first by default - Using Ollama keeps all data on your machine
    • ✅ Offline operation - Works completely offline with local models
    • ⚠️ Function bodies are analyzed - Business logic and code comments are sent to the LLM
    • 🔒 Recommendation : Avoid using -ai on code containing secrets or API keys

    ✅ 📊 Test Coverage Improvements

    • Increased overall project coverage from 28.1% to 84.6% (#196)
    • ➕ Added comprehensive tests for:
      • internal/goparser package
      • internal/models package
      • internal/output package
      • internal/render package
      • gotests/process package

    📚 📚 Documentation Enhancements

    • ➕ Added godoc comments to all exported functions (#195)
    • Expanded README with:
      • AI-powered test generation section
      • Quick start examples
      • Privacy and security considerations
      • Configuration options and examples

    🛠️ Technical Implementation

    🆕 New Packages:

    • internal/ai - AI provider abstraction layer
      • Ollama provider with health checks and retries
      • Go-specific prompt engineering
      • Response parsing and validation
      • E2E test suite with golden file validation

    CLI Flags:

    • ✅ -ai - Enable AI test case generation
    • 0️⃣ -ai-model - Select model (default: qwen2.5-coder:0.5b)
    • 0️⃣ -ai-endpoint - Ollama endpoint (default: http://localhost:11434)
    • ✅ -ai-min-cases - Minimum test cases to generate (default: 3)
    • ✅ -ai-max-cases - Maximum test cases to generate (default: 10)

    Architecture:

    • 👍 Provider-based design for future LLM support
    • Language-agnostic core with Go-specific implementation
    • Graceful fallback to TODO comments on generation failure
    • Integration with existing template rendering pipeline

    🐛 Known Issues

    • ✅ Issue #197: 4 out of 11 E2E tests disabled due to environment-dependent LLM non-determinism
      • Does not affect functionality, only E2E test validation
      • 7 E2E tests pass consistently on first attempt
      • Will be addressed in future patch release

    📦 Installation

    go install github.com/cweill/gotests/gotests@v1.9.0

    🙏 Credits

    🤖 Developed with assistance from Claude Code

    Full Changelog : v1.8.0...v1.9.0

  • v1.8.0 Changes

    October 21, 2025

    👍 🎉 Full Go Generics Support

    👍 This release adds complete support for Go generics (type parameters), enabling gotests to generate tests for generic functions and methods on generic types.

    ✨ Key Features

    • 🔧 Generic Functions : Generate tests for functions with type parameters

    • 🏗️ Generic Types : Support for methods on generic types

    • 🎯 All Constraint Types : any, comparable, union types (int64 | float64), approximation (~int)

    • 🧠 Smart Type Mapping : Intelligent defaults for type instantiation

    • 🔄 Multiple Type Parameters : Handles functions like Pair[T, U any]

    ✅ 📊 Test Coverage

    • ✅ 97.5% main package coverage
    • ✅ 83.5% overall project coverage
    • ✅ 100% coverage on all new parser functions
    • ✅ ✅ 8 comprehensive generic test patterns

    🔧 Technical Improvements

    📜 Parser Enhancements:

    • 🆕 New parseTypeDecls() extracts type parameters from type declarations
    • 🆕 New parseTypeParams() parses AST field lists
    • 🆕 New extractBaseTypeName() handles receiver types

    Template Functions:

    • TypeArgs - generates concrete type arguments for calls
    • FieldType - substitutes type parameters in field declarations
    • ReceiverType - substitutes type parameters in receiver instantiations

    ⚡️ Model Updates:

    • 🆕 New TypeParam struct
    • ➕ Added TypeParams field to Function
    • Helper methods: IsGeneric(), HasGenericReceiver()

    📚 📚 Documentation

    ➕ Added comprehensive "Go Generics Support" section to README with:

    • ✅ Example: Generic function test generation
    • Example: Methods on generic types
    • Type constraint mapping reference

    🛠 🐛 Fixes

    ✅ Closes #165

    📦 Installation

    go install github.com/cweill/gotests/gotests@v1.8.0

    🙏 Credits

    🤖 Developed with assistance from Claude Code

    Full Changelog : v1.7.0...v1.8.0

  • v1.7.4 Changes

    October 21, 2025

    What's New in v1.7.4

    🚀 This release fixes two important bugs that improve test correctness and restore broken functionality.

    🐛 Bug Fixes

    ✅ 🐛 Fixed wantErr Test Logic (PR #169)

    ✅ When a test expects an error (tt.wantErr == true), gotests now correctly skips result validation instead of checking potentially undefined return values.

    Before:

    if(err!=nil)!=tt.wantErr{t.Errorf("Foo() error = %v, wantErr %v",err,tt.wantErr)continue}// Bug: Still checks results even when error is expected!ifgot!=tt.want{t.Errorf("Foo() = %v, want %v",got,tt.want)
}

    After:

    if(err!=nil)!=tt.wantErr{t.Errorf("Foo() error = %v, wantErr %v",err,tt.wantErr)continue}iftt.wantErr{return// ← Fixed: Skip result checks when error expected}ifgot!=tt.want{t.Errorf("Foo() = %v, want %v",got,tt.want)
}

    ✅ This prevents false test failures and ensures tests behave correctly when expecting errors.

    Thanks to @arifmahmudrana for identifying this issue!

    ✅ 🐛 Fixed -template_params Flag (Issue #149)

    ✅ The -template_params flag was defined but never actually used due to a bug from PR #90. This flag now works correctly!

    Usage:

    # Pass template parameters as JSON string$ gotests -template_params'{"key":"value"}'-all file.go# Or use a file (takes precedence)$ gotests -template_params_file params.json -all file.go

    ✅ This is useful when calling gotests from other tools with custom templates.

    Thanks to @butuzov for identifying this bug and @cweill for the fix suggestion!

    Installation

    go install github.com/cweill/gotests/gotests@v1.7.4

    Full Changelog : v1.7.3...v1.7.4

  • v1.7.3 Changes

    October 21, 2025

    What's New in v1.7.3

    ⚡️ This is a security update that addresses multiple CVEs by updating dependencies.

    🔒 Security Fixes

    ⚡️ 🔒 Updated golang.org/x/tools to fix CVEs

    Updated golang.org/x/tools from v0.0.0-20191109212701 (November 2019) to v0.38.0 (latest) to address multiple security vulnerabilities:

    🔄 Changes

    • ⚡️ Updated golang.org/x/tools from 2019 version to v0.38.0
    • ⚡️ Updated Go directive to 1.24.0 (with toolchain go1.24.5)
    • ➕ Added indirect dependencies: golang.org/x/mod v0.29.0, golang.org/x/sync v0.17.0
    • 🛠 Fixed test code compatibility with stricter format string checking in newer x/tools

    ⚡️ All tests pass with the updated dependencies.

    Installation

    go install github.com/cweill/gotests/gotests@v1.7.3

    Important Note

    ⚡️ We recommend all users update to this version to ensure you have the latest security fixes.

    Full Changelog : v1.7.2...v1.7.3

    🔒 Thanks to @testwill for identifying these security vulnerabilities!

  • v1.7.2 Changes

    October 21, 2025

    What's New in v1.7.2

    📚 This is a small cleanup release with code quality improvements and documentation updates.

    👌 Improvements

    🧹 Code Cleanup
    • ✂ Remove unnecessary type conversion (#170) - Simplified code in generateTest() by removing redundant type conversion. Thanks to @fengxuway!
    📚 📚 Documentation
    • ⚡️ Update VS Code link (#167) - Changed Visual Studio Code link to point directly to gotests-specific configuration documentation for easier setup. Thanks to @davidhsingyuchen!

    Installation

    go install github.com/cweill/gotests/gotests@v1.7.2

    Full Changelog : v1.7.1...v1.7.2

  • v1.7.1 Changes

    October 21, 2025

    What's New in v1.7.1

    🚀 This release adds two highly-requested features to improve the gotests experience.

    🆕 New Features

    🧪 go-cmp Support (-use_go_cmp)

    ✅ Generate tests using google/go-cmp instead of reflect.DeepEqual for better test assertions and diff output.

    $ gotests -use_go_cmp -all -w example.go

    ✅ Generated tests will use cmp.Equal() for comparisons and cmp.Diff() in error messages, providing much clearer output when tests fail.

    Example output:

    if!cmp.Equal(tt.want,got) {t.Errorf("Foo() = %v, want %v\ndiff=%s",got,tt.want,cmp.Diff(tt.want,got))
}

    ✅ Resolves #155 (thanks to @butuzov for the original PR!)

    📋 Version Information (-version)

    ✅ Check which version of gotests you're running:

    $ gotests -version
gotests v1.7.1
Go version: go1.22.0
Git commit: 5252e0b...
Build time: 2025-10-21T02:15:00Z

    🚀 This helps with troubleshooting and verifying you have the latest release.

    ✅ Resolves #133

    Housekeeping

    • ✅ Closed superseded README PRs (#172, #166) that were already addressed in v1.7.0

    Installation

    go install github.com/cweill/gotests/gotests@v1.7.1

    Full Changelog : v1.7.0...v1.7.1

  • v1.7.0 Changes

    October 21, 2025

    🚀 v1.7.0 - Major Modernization Release

    🚀 After 5 years since v1.6.0, we're excited to release v1.7.0 with major improvements and modernizations! 🎉

    ✨ New Features

    👍 Recursive Directory Support

    ✅ You can now generate tests for entire directory trees using the ... pattern:

    gotests -all pkg/...

    ✅ This will recursively generate tests for all Go files in the pkg directory and its subdirectories. Fixes #186.

    Cleaner Generated Code

    ✅ Generated tests now use Go 1.22+ loop variable scoping, eliminating the need for the tt := tt shadowing pattern. Tests are now cleaner and more readable.

    👍 Better Error Handling

    ✅ Subtests with return values now use t.Fatalf() instead of t.Errorf() + return, providing clearer test failure semantics and preventing misleading output. Thanks to PR #184.

    🔧 Improvements

    💥 BREAKING: Minimum Go Version

    • Minimum Go version increased from 1.6 to 1.22
    • Leverages modern Go features for cleaner generated code
    • 👍 Aligns with Go's official support policy

    Dependency Reduction

    • 📦 Replaced third-party bindata tools with stdlib embed package (PR #181)
    • ✂ Removed 834+ lines of generated code
    • 🏗 Simplified build process - no more go generate needed
    • 👍 Better maintainability and reduced external dependencies

    🐛 Bug Fixes

    • 🛠 Fixed import path bug when receiver types and methods are in different files (PR #179)
    • 📦 Now correctly collects imports from all files in the package
    • ✅ Prevents compilation errors in generated test files

    Template Improvements

    • ✅ Proper t.Parallel() placement at top-level test functions (fixes #188)
    • 👕 Satisfies tparallel linter requirements
    • 👍 Better parallel test execution

    📚 Documentation & Installation

    • ⚡️ Updated README to use go install instead of deprecated go get (PR #180)
    • ✅ Documented the -named flag for map-based table tests (PR #185)
    • ➕ Added CHANGELOG.md for tracking changes
    • ➕ Added CLAUDE.md for AI-assisted development

    ⚡️ 📦 CI/CD Updates

    • ⚡️ Updated GitHub Actions to test Go 1.22.x, 1.23.x, 1.24.x, and 1.25.x
    • Modernized actions: setup-go v2→v5, checkout v2→v4
    • Simplified coverage reporting with coverallsapp/github-action@v2
    • 🛠 Fixed bot commit support for automated workflows

    📊 Statistics

    • 834+ lines of generated bindata code removed
    • 5 PRs integrated
    • 2 issues fixed
    • 4 Go versions tested in CI (was 8, now focused on recent versions)

    🙏 Thanks

    🚀 Special thanks to the contributors whose PRs were integrated in this release:

    • ✅ PR #184 (t.Fatalf improvement)
    • 📚 PR #185 (documentation)
    • ✅ PR #180 (go install)
    • 📦 PR #181 (embed package)
    • ✅ PR #179 (import fix)

    And to everyone who reported issues and helped maintain this project!

    📝 Installation

    go install github.com/cweill/gotests/gotests@latest

    🔗 Full Changelog

    👀 See CHANGELOG.md for complete details.

  • v1.6.0

    December 26, 2020

  • v1.5.3

    April 07, 2019

  • v1.5.2

    November 08, 2016