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Testing Database Connection Properties in PgHero

A unit test suite for the PgHero database connection component that validates core database identification and naming functionality. The tests ensure proper database instance configuration and connection management within the PgHero PostgreSQL monitoring tool.

Test Coverage Overview

This test suite covers essential database connection identification functionality in PgHero.

Key areas tested include:

Database instance ID verification
Database name string formatting and retrieval
Basic connection configuration validation

The tests focus on core database properties that are fundamental to PgHero’s operation.

Implementation Analysis

The implementation uses Minitest’s assertion-based testing approach with a clean, focused test structure. Each test method validates a single database property using explicit assertions.

Testing patterns include:

Individual method tests for each database property
Direct assertion comparisons against expected values
Clear test method naming conventions

Technical Details

Technical implementation components:

Minitest test framework
TestHelper module integration
Database connection helper methods
String-based assertions for property validation

Best Practices Demonstrated

The test suite demonstrates several testing best practices for Ruby database components.

Notable practices include:

Single responsibility principle in test methods
Clear and descriptive test naming
Focused assertions for specific properties
Proper test isolation and setup

ankane/pghero

test/database_test.rb

            
require_relative "test_helper"

class DatabaseTest < Minitest::Test
  def test_id
    assert_equal "primary", database.id
  end

  def test_name
    assert_equal "Primary", database.name
  end
end