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Choose wisely between RSpec’s <code>let</code> and <code>let!</code> to control when data is created. This guide explains lazy vs eager evaluation, shows a real example, and lists trade‑offs so your tests stay fast and reliable.
Decide when to use RSpec's lazy <code>let</code>, eager <code>let!</code>, or imperative <code>before</code> hooks. A decision guide with a comparison table, trade‑offs, and concrete validation steps helps keep tests fast, isolated, and maintainable.
Ballerina configurable variables are resolved during module initialization. In an integration test that must avoid production credentials, a common approach is to use ballerina/test 's setEnv and unsetEnv functions, or a test-specific Config.toml , to supply substitute values. A failure condition arises when test setup runs after configurable resolution: a t
rspec
ruby
ballerina