Executable tutorial proposal (Schemathesis) (#2632)

* add executable tutorial proposal

Co-authored-by: Sofia Edvardsson <[email protected]>

* switch CATS for Schemathesis

Co-authored-by: Sofia Edvardsson <[email protected]>

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Co-authored-by: Sofia Edvardsson <[email protected]>

contributions/executable-tutorial/rmfseo-sofiaedv/README.md

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+# Assignment Proposal
+
+## Title
+
+REST API Fuzzing using Schemathesis
+
+## Names and KTH ID
+
+- Rafael Oliveira ([email protected])
+- Sofia Edvardsson ([email protected])
+
+## Deadline
+
+- Task 3
+
+## Category
+
+- Executable tutorial
+
+## Description
+
+As software solutions increasingly turn to web-based stacks, it becomes
+paramount to include comprehensive API testing within CI pipeline processes. We
+believe that performing automated testing of API endpoints, in a continuous
+fashion, is of great benefit to any project used by consuming clients and so it
+is very relevant for (aspiring) developers to get a sense of how one might do
+that in a systematic fashion.
+
+Thus, we propose creating an executable tutorial that can pedagogically
+introduce developers unacquainted with these techniques to a specific workflow
+that they might use later in their professional lives. In particular, we wish to
+introduce learners to the [Schemathesis](https://schemathesis.io) tool, which
+allows for automated fuzzing of REST APIs based on an OpenAPI contract document.
+
+We will include a simple sample project with non-obvious logic errors, guide the
+user to run Schemathesis and explore the potential vulnerabilities it detects,
+as well as show them how to use the information reported to easily fix or
+mitigate the problems in question.
+
+**Relevance**
+
+Automated fuzzing, especially in this particular context of REST APIs, is at the
+heart of automated testing, which we have discussed in week 2 of this course and
+is essential to allow for effective Continuous Integration without compromising
+robustness. Our proposed tutorial hopes to demonstrate how to use a tool like
+Schemathesis as a key component in a testing pipeline to complement
+human-written and human-driven tests to ensure all stakeholders have confidence
+in the system's continuous reliability.