Create and manage mocks, stubs, and spies for TestBox unit tests in ColdBox applications.
npx skills add https://github.com/ColdBox/skills --skill testbox-mockbox
Please help me install this Agent Skill. Skill: testbox-mockbox Source: https://github.com/ColdBox/skills/tree/main/testbox/mockbox Command: npx skills add https://github.com/ColdBox/skills --skill testbox-mockbox
Provide deterministic, controllable test doubles for ColdBox TestBox specs so unit tests can isolate systems under test, simulate database queries, and assert interactions without hitting real external services.
Prepare a mock for UserService that stubs save to return an object with id 1 and assert that save was called once.
High-intent search queries and answers about installing and using this skill.
To stub specific method behaviors in TestBox, use $args() to match method arguments and $results() to define sequential return values, allowing precise control over mock responses during unit test execution.
You simulate database queries in TestBox specs by using the querySim() function, which generates mock query objects to avoid hitting real external database services during unit test execution.
You verify method calls and arguments in ColdBox mocks by using call logging and verification helpers like $once, $never, $times, $count, and $callLog to assert invocation counts and inspect passed arguments.
A full mock via createMock replaces an entire object, an empty mock via createEmptyMock strips existing behavior, and a partial mock via prepareMock allows spying on real methods while stubbing only specific collaborators.
Yes, you can inject properties into a ColdBox mock during unit testing by using the $property() function to set internal variables, enabling deterministic state control without relying on real initialization processes.
You spy on real methods in TestBox by using the $spy() function, which allows behavioral verification by recording method calls and arguments while still executing the actual underlying method logic.
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