Writing Integration Tests

Docker provides consistent and isolated test environments: 1) Ensures same environment across all test runs, 2) Isolates tests from system dependencies, 3) Enables testing with exact service versions, 4) Facilitates clean state for each test run, 5) Supports testing multiple service configurations, 6) Enables parallel test execution in isolation, 7) Simplifies test environment setup and teardown, 8) Ensures reproducible test conditions.