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03-use-reflection-to-know-number-of-return-argument.md

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  • Date: 2024-07-15
  • Decision taken by: Laurent DUTHEIL
  • Status: accepted

Context

On Called() or MethodCalled() method call, this not necessary to fail if a stubbed method have no return parameters. Even if we don't predefine a call without return parameters, the test should not fail.

The only way to know the number of return parameters is to use reflection. But we have to have a reference of the caller

Considered options

  1. Option 1:
    • Use the generic constructor to set the caller
    • ✅ Advantage:
      • with the caller we can easily do reflection and know how many return parameter on each method
      • the stubbed method don't have to fail the test
    • 🚫 Disadvantage:
      • The reflection don't work with private methods
  2. Option 2:
    • No reflection
    • ✅ Advantage:
      • no impact on constructor or on Called() or MethodCalled() method call
    • 🚫 Disadvantage:
      • have to fail even if method have no return arguments

Advices

<--Any advices worth mentioning-->

Decision

Option 1: Use the generic constructor to set the caller