SmokeCrossFit 1.0.0b8

A unified interface for various code coverage tools (JaCoCo, dotnet-coverage)

CrossFit Coverage Tools

CrossFit is a Python package designed to provide a unified interface for various code coverage tools. It wraps the functionality of different coverage CLI tools, allowing developers to use a consistent API regardless of which underlying tool they prefer.

Installation

To install CrossFit, run:

pip install crossfit

Prerequisites

Before using CrossFit, ensure you have the following installed:

1. Python 3.7 or higher
2. Java Runtime Environment (JRE) - Required for JaCoCo integration
3. The specific coverage tools you intend to use (e.g., JaCoCo, dotnet-coverage)

Supported Tools

CrossFit currently supports the following coverage tools:

1. JaCoCo - Java-based code coverage tool
2. dotnet-coverage - .NET coverage tool
3. dotnet-reportgenerator - .NET report generation tool

Usage

CrossFit provides a unified interface for managing code coverage across different tools. Here's how to use it:

Basic Usage

from crossfit.tools.jacoco import Jacoco

# Initialize the JaCoCo tool
jacoco = Jacoco(tool_path="/path/to/jacoco")

# Save coverage report
result = jacoco.save_report(
    coverage_files=["coverage.exec"],
    target_dir="/output/directory",
    sourcecode_dir="/source/code"
)

Key Features

• Unified Interface: Consistent API across different coverage tools
• Command Building: Automatic validation of required flags
• Coverage Management: Merge, snapshot, and save coverage data
• Error Handling: Comprehensive logging and error reporting
• Multiple Report Formats: Support for CSV, HTML, XML, and Cobertura formats

Example Workflow

from crossfit.tools.jacoco import Jacoco
from crossfit.models.tool_models import ReportFormat

# Initialize JaCoCo tool
jacoco = Jacoco(tool_path="/path/to/jacoco")

# Merge coverage files
merge_result = jacoco.merge_coverage(
    coverage_files=["coverage1.exec", "coverage2.exec"],
    target_dir="/output",
    target_file="merged.exec"
)

# Generate HTML report
report_result = jacoco.save_report(
    coverage_files=["merged.exec"],
    target_dir="/reports",
    sourcecode_dir="/src",
    report_format=ReportFormat.Html
)

Package Structure

The package follows a modular structure:

• crossfit/tools/jacoco.py: Implementation of JaCoCo tool wrapper
• crossfit/tools/dotnet_coverage.py: Implementation of .NET coverage tool wrapper
• crossfit/tools/tool.py: Base tool class and abstract methods
• crossfit/models/tool_models.py: Enum definitions for tool types and report formats
• crossfit/models/command_models.py: Command result models and command types
• crossfit/commands/command.py: Command building and execution utilities

Core Components

Tool Models (crossfit/models/tool_models.py)

Defines the core enumerations used throughout the package:

• ToolType: Enum representing supported tools

  • Jacoco
  • DotnetCoverage
  • DotnetReportGenerator

• ReportFormat: Enum representing supported report formats

  • Csv
  • Html
  • Xml
  • Cobertura

Command Models (crossfit/models/command_models.py)

Provides structured representations of command results:

• CommandType: Enum defining command types

  • SaveReport
  • SnapshotCoverage
  • MergeCoverage
  • ResetCoverage

• CommandResult: Pydantic model for command execution results with fields:

  • code: Exit code from command execution
  • command: The executed command string
  • output: Standard output from command
  • target: Target path/file of operation
  • error: Error output from command

Command Builder (crossfit/commands/command.py)

Provides utilities for building and executing shell commands:

• Command: Class for constructing shell commands with:
  • Execution call (e.g., java -jar)
  • Command keywords (e.g., dump, merge, report)
  • Options and arguments
  • Path validation
  • Delimiter handling for option-value pairs

Tool Implementations

JaCoCo Tool (crossfit/tools/jacoco.py)

Implements the JaCoCo coverage tool with methods:

• save_report(): Generate coverage reports in various formats
• snapshot_coverage(): Take coverage snapshots
• merge_coverage(): Merge multiple coverage files
• _get_command(): Build validated JaCoCo commands with required flag checking

DotNet Coverage Tool (crossfit/tools/dotnet_coverage.py)

Implements the .NET coverage tool with methods:

• save_report(): Generate reports from coverage files
• merge_coverage(): Merge coverage data
• snapshot_coverage(): Capture coverage snapshots
• reset_coverage(): Reset coverage data

Advanced Usage

Working with Multiple Report Formats

from crossfit.tools.jacoco import Jacoco
from crossfit.models.tool_models import ReportFormat

jacoco = Jacoco(tool_path="/path/to/jacoco")

# Generate multiple report formats
result = jacoco.save_report(
    coverage_files=["coverage.exec"],
    target_dir="/reports",
    sourcecode_dir="/src",
    report_formats=[ReportFormat.Html, ReportFormat.Xml, ReportFormat.Cobertura]
)

Custom Command Arguments

from crossfit.tools.jacoco import Jacoco

jacoco = Jacoco(tool_path="/path/to/jacoco")

# Pass custom arguments to commands
result = jacoco.merge_coverage(
  ["coverage1.exec", "coverage2.exec"],
  "/output", "merged.exec",
  *["--format", "xml"]  # Custom arguments
)