Adds the ADR related to declaring mocks using functions and annotations.

docs/0006-model-class-naming-conventions.md

@@ -1,8 +1,8 @@
 # Model class naming conventions
 
-* Status: Discussed and agreed in principle
+* Status: Accepted
 * Deciders: Marino, Zorica, Stefanija, Davide, Tomasz, Maciej
-* Date: 20/08/2021
+* Date: 20/09/2021
 
 
 ## Context and Problem Statement

docs/0008-use-function-over-annotation-for-creating-mocks.md

@@ -0,0 +1,26 @@
+# Use functions over annotations for creating mocks
+
+* Status: Accepted
+* Deciders: Marino, Zorica, Stefanija, Davide, Tomasz, Maciej
+* Date: 22/09/2021
+
+
+## Context and Problem Statement
+
+We would like to have a consistent way of declaring mocks in the tests that will aid readability and
+clarity.
+
+## Considered Options
+
+* Using a `mockk()` function and defining the mock's default behaviour when it's first declared.
+* Using a `@MockK` annotation in combination with `@BeforeTest` annotated function to init the mocks
+and define their default behaviour.
+
+## Decision Outcome
+
+In order to maximise the readability and clarity of the test code, `mockk()` function has been 
+chosen as the preferred solution; defining the mock's default behaviour in the same place it is
+declared, makes it more transparent and harder to overlook.
+
+## Consequences
+1. All the new tests will use the `mockk()` function approach over the alternative.