[kinyoklion]

Summary

Adds the flag-overrides capability to the contract test service and the overrides block of the SDK configuration it accepts, as described in the test harness service specification. The block's filePaths, duplicateKeysHandling (fail or ignore), changeDetection (polling or watching), and pollIntervalMs map onto FileOverrides.Source() options, and the source is attached to the FDv2 data system builder that the dataSystem block configures. The test service registers a YamlDotNet parser for the .yaml and .yml extensions so the harness's YAML document test can run.

The test service also takes an optional port as its first command line argument, defaulting to 8000, so that several test services can run on one machine.

It depends on the file-based override source change, #367, which is merged into dotnet-server-sdk-v9.

SDK-3248

---

Note

Overview
Adds flag-overrides to the contract test service so the harness can exercise file-based flag overrides on the .NET server SDK.

Harness JSON can now include an overrides block (filePaths, duplicateKeysHandling, changeDetection, pollIntervalMs), which is mapped to FileOverrides.Source() and attached to the FDv2 dataSystem builder; overrides without dataSystem fails fast with an ArgumentException. YamlDotNet is added so .yaml/.yml override files parse correctly in conformance tests.

The test service Main also accepts an optional port argument (default 8000) so multiple instances can run on one machine.

^{Reviewed by Cursor Bugbot for commit 477ea95. Bugbot is set up for automated code reviews on this repo. Configure here.}

_{Opened from termag}

[kinyoklion]

bugbot review

[cursor]

Stale Bugbot comment from a previous run.

[kinyoklion]

bugbot review