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Testing Core Database Properties in PgHero

This test suite implements fundamental unit tests for the PgHero database monitoring tool. It verifies essential database connection properties and version information using Minitest framework.

Test Coverage Overview

The test suite covers core database functionality including SSL connection status, database name verification, and server version information. Key test cases focus on:

SSL connection status validation
Database name verification
Server version string format
Server version number type checking

Implementation Analysis

The implementation uses Minitest’s assertion-based testing approach with clear, isolated test methods. Each test case focuses on a single database property verification using specific assertion methods like assert_equal and assert_kind_of.

The testing pattern follows Ruby’s conventional unit testing structure with individual methods prefixed with ‘test_’.

Technical Details

Testing tools and components include:

Minitest as the testing framework
Custom test helper integration
Database connection wrapper methods
Type-specific assertions for different return values

Best Practices Demonstrated

The test suite demonstrates several testing best practices including atomic test methods, clear naming conventions, and appropriate assertion selection. Each test method verifies a single piece of functionality with precise assertions matching expected return types and values.

Single responsibility principle in test methods
Consistent naming conventions
Type-specific assertions
Isolated test cases

ankane/pghero

test/basic_test.rb

            
require_relative "test_helper"

class BasicTest < Minitest::Test
  def test_ssl_used?
    refute database.ssl_used?
  end

  def test_database_name
    assert_equal "pghero_test", database.database_name
  end

  def test_server_version
    assert_kind_of String, database.server_version
  end

  def test_server_version_num
    assert_kind_of Integer, database.server_version_num
  end
end