Test Suite Configuration

Build a test suite runner for a simple calculator package that demonstrates proper test suite initialization and configuration.

Requirements

Create a calculator package with basic operations (add, subtract, multiply, divide) and implement a comprehensive test suite with the following requirements:

1. Calculator Implementation - Create a calculator.go file with:

   • An Add(a, b int) int function that returns the sum of two integers
   • A Subtract(a, b int) int function that returns the difference
   • A Multiply(a, b int) int function that returns the product
   • A Divide(a, b float64) (float64, error) function that returns the quotient or an error for division by zero

2. Test Suite Setup - Create a test suite that:

   • Properly initializes the test suite with appropriate suite-level configuration
   • Uses a custom random seed value of 1234 for reproducible test execution
   • Enables verbose output for detailed test information
   • Configures parallel execution with 2 parallel nodes
   • Sets up reporter configuration for clear test output

3. Test Specifications - Write tests that:

   • Organize tests using descriptive container blocks for each calculator operation
   • Include at least one test case for each operation
   • Use proper test case definition blocks

4. Integration - Ensure the test suite:

   • Integrates properly with Go's standard testing package
   • Can be executed using the standard go test command
   • Provides clear output indicating suite start and completion

Test Cases { .test-cases }

Test Case 1: Addition Test { .test-case }

Input:

go test -v

Expected Output (partial match):

Running Suite:

The output should show that the test suite is running and at least one addition test passes. { @test }

Test Case 2: Division by Zero { .test-case }

Input:

go test -v

Expected Output (partial match): The test suite should include a test that verifies division by zero returns an error. The test should pass. { @test }

Test Case 3: Parallel Configuration { .test-case }

Input:

go test -v

Expected Output: The test suite should execute with the configured parallel settings. All tests should pass. { @test }

Dependencies { .dependencies }

github.com/onsi/ginkgo/v2 { .dependency }

A mature testing framework for Go designed to help you write expressive specs.

github.com/onsi/gomega { .dependency }

Provides assertion and matcher support for tests.

File Structure

.
├── calculator.go
├── calculator_test.go
└── suite_test.go

Notes

• Use standard Go testing conventions for file naming
• Ensure all test files end with _test.go
• The suite initialization should be in a separate file from the test specifications
• Follow Go best practices for package organization