---
source_files:
  - Common/DTS.CommonCore/Interface/DTS.Viewer/TestModule/ITestModuleView.cs
  - Common/DTS.CommonCore/Interface/DTS.Viewer/TestModule/ITestModuleViewModel.cs
generated_at: "2026-04-16T02:32:30.110646+00:00"
model: "Qwen/Qwen3-Coder-Next-FP8"
schema_version: 1
sha256: "43e7cc3a0d236351"
---

# TestModule

## 1. Purpose  
This module defines the foundational view and view-model interfaces for a *Test Module* within the DTS Viewer subsystem. Its role is to establish a contract for UI components responsible for displaying or managing test-related functionality—specifically, operations involving .NET `Assembly` inspection or manipulation—by extending the common base interfaces (`IBaseView` and `IBaseViewModel`) and exposing a list of assemblies (`AssemblyList`) as its core data payload.

## 2. Public Interface  

### `ITestModuleView`  
- **Signature**: `public interface ITestModuleView : IBaseView`  
- **Behavior**: A marker interface for the *view* layer of the Test Module. It inherits from `IBaseView`, implying it adheres to the standard view contract (e.g., binding context, lifecycle hooks) defined elsewhere in `DTS.Common.Base`. No additional members are declared here.

### `ITestModuleViewModel`  
- **Signature**: `public interface ITestModuleViewModel : IBaseViewModel`  
- **Behavior**: A view-model interface for the Test Module. It extends `IBaseViewModel` and exposes a single property:  
  - `AssemblyList`: A `List<Assembly>` (read-write) intended to hold the collection of .NET assemblies relevant to the test module’s functionality (e.g., loaded test assemblies, plugin assemblies, or candidate assemblies for execution).  

## 3. Invariants  
- `ITestModuleView` and `ITestModuleViewModel` must be used in conjunction per the standard MVVM pattern (view ↔ view-model binding), though the source does not enforce this directly.  
- `AssemblyList` is nullable by default (as it is a read-write property of a reference type); implementations must ensure it is initialized before use to avoid `NullReferenceException`.  
- No explicit validation rules or ordering constraints are defined for `AssemblyList` (e.g., no requirement for uniqueness, null-safety, or sortedness).  

## 4. Dependencies  
- **Depends on**:  
  - `DTS.Common.Base` (for `IBaseView`, `IBaseViewModel`)  
  - `System.Collections.Generic` (for `List<T>`)  
  - `System.Reflection` (for `Assembly`)  
- **Depended on by**:  
  - Unknown from source alone. Concretions (e.g., `TestModuleView : ITestModuleView`, `TestModuleViewModel : ITestModuleViewModel`) and consumers (e.g., DI containers, view-resolution logic) are not visible here.  

## 5. Gotchas  
- **Ambiguous scope of `AssemblyList`**: The interface does not clarify whether `AssemblyList` represents *all* assemblies, *selected* assemblies, *loaded* assemblies, or *candidate* assemblies. Its semantics are implementation-defined.  
- **No immutability or change notification**: The property is read-write with no indication of reactive updates (e.g., `INotifyCollectionChanged`). Consumers may need to manually handle synchronization if the list is modified externally.  
- **No null-safety contract**: While `List<Assembly>` is non-nullable as a type, the property itself may be `null` at initialization. Implementers must decide whether to auto-initialize or require callers to do so.  
- **Namespace quirk**: The `// ReSharper disable CheckNamespace` directive suggests intentional namespace flattening (likely to avoid deep nesting), but this is a tooling hint—not a runtime behavior—and does not affect semantics.  

None identified beyond the above.