# V - Validation Codes

## Introduction

These output codes are associated with validation checks performed on the tests created by Diffblue Cover, to ensure they run without any issues.

### V003 - Tests discarded during validation

Tests were discarded during the validation stage where the created tests are run in a realistic test environment. See [Working with code V003](https://docs.diffblue.com/knowledge-base/troubleshooting/resolving-code-v003/) for more information.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://cover-docs-preview.diffblue.com/features/output-codes/v-validation-codes.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.