6 micro-topics in Reliability & Operations, each with the evidence that proves you have it and the written reason behind every link. Before you start, it rests on 7 other domains. Nothing in the map rests on it yet — it is a leaf.
6 topics · depth 5–9 of 16 · 4 internal links · 8 in · 0 out
Load-bearing links first. Each one says what in this domain rests on what outside it, and why.
2 links
Test async code rests on Write async Python
You test async code.
Mock external APIs rests on Call HTTP APIs asynchronously
You mock the client you use.
1 link
Test API endpoints rests on Route requests in FastAPI
You test endpoints that exist.
1 link
Test against a real database rests on Version schema changes with migrations
A test database is created and torn down by migrations.
1 link
Test Python with pytest rests on Define functions
You test Python functions.
1 link
Test streaming endpoints rests on Serve server-sent events
You test the stream you serve.
1 link
Test Python with pytest rests on Reason about the testing pyramid
The same placement logic applies.
1 link
Mock external APIs rests on Mock dependencies
Mocking transfers across languages.
In prerequisite order. Each idea names the artifact that closes it, the market demand that put it on the map, and what it stands on.
Depth 5 · procedural · unassisted · M22 §22.1
Uses fixtures and parameterization
Define functions · Python Core
You test Python functions.
Reason about the testing pyramid · Testing Foundations
The same placement logic applies.
Depth 6 · procedural · scaffolded · M22 §22.1
Awaits and asserts in async tests
Async tests extend ordinary tests.
Write async Python · Production Python
You test async code.
Depth 7 · procedural · unassisted · M22 §22.2
Drives endpoints with a test client
Route requests in FastAPI · FastAPI
You test endpoints that exist.
API tests are written in the same framework.
Depth 7 · procedural · unassisted · M22 §22.1
Replaces upstreams with controlled responses
Call HTTP APIs asynchronously · Production Python
You mock the client you use.
Mock dependencies · Frontend Testing
Mocking transfers across languages.
Depth 8 · procedural · scaffolded · M22 §22.2
Runs integration tests with fixtures and teardown
Integration tests add real dependencies.
Version schema changes with migrations · Data Modeling
A test database is created and torn down by migrations.
Depth 9 · procedural · guided · M22 §22.2
Asserts on a response that arrives in parts
Serve server-sent events · Streaming Responses
You test the stream you serve.
Stream tests extend endpoint tests.
Everything downstream that names an idea here as a prerequisite, grouped by where it lives.
Nothing in the map rests on this domain yet — it is a leaf.
Retool. Retrain. Relaunch.
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