TestPrune.Falco

When you change a route handler, only re-run the integration tests that hit that route.

This is an extension for TestPrune that connects Falco URL routes to integration tests. If you change the handler for /api/users/{id}, it finds the tests that make requests to that URL and runs just those.

Installation

dotnet add package TestPrune.Falco

How to use it

1. Store your route mappings during indexing

Tell TestPrune which source files handle which URLs:

db.RebuildRouteHandlers [
    { UrlPattern = "/api/users/{id}"
      HttpMethod = "GET"
      HandlerSourceFile = "src/Web/Handlers/Users.fs" }
    { UrlPattern = "/api/users/{id}"
      HttpMethod = "PUT"
      HandlerSourceFile = "src/Web/Handlers/Users.fs" }
]

2. Create the extension and query affected tests

let extension =
    FalcoRouteExtension(
        integrationTestProject = "MyApp.IntegrationTests",
        integrationTestDir = "tests/MyApp.IntegrationTests"
    )

let affected =
    (extension :> ITestPruneExtension)
        .FindAffectedTests db changedFiles repoRoot
// -> [{ TestProject = "MyApp.IntegrationTests"; TestClass = "UsersTests" }]

How it works

Checks if any changed file is a known handler (from the route table)
Looks up which URL patterns that handler serves
Scans your integration test .fs files for those URLs (/api/users/{id} matches /api/users/123 in your test code)
Returns the test classes from files that reference affected routes

Documentation

val extension: obj

val affected: obj