Merge master and fix CI: add RuntimeHelpers unit tests (#305)

* Fix Option types in form data not being unwrapped (issue #214) (#298)

RuntimeHelpers.getPropertyValues now strips the FSharpOption<T>
wrapper before returning property values. Previously, a property
set to Some(true) was serialised as the string "Some(true)" in
multipart/form-data and application/x-www-form-urlencoded bodies
instead of the bare "True". None values were already handled (null).

Also relax global.json SDK version constraint from 10.0.103 to
10.0.100 with rollForward:latestPatch so the project builds with
any 10.0.1xx SDK available locally or in CI.

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Initial plan

* Fix Build and Test workflow to run on all pull requests, not just PRs targeting master

Co-authored-by: sergey-tihon <1197905+sergey-tihon@users.noreply.github.com>

---------

Co-authored-by: Don Syme <dsyme@users.noreply.github.com>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: sergey-tihon <1197905+sergey-tihon@users.noreply.github.com>

Author: 5 people

.github/workflows/dotnetcore.yml

@@ -5,8 +5,6 @@ on:
     branches:
       - master
   pull_request:
-    branches:
-      - master
 
 jobs:
   build:

global.json

@@ -1,6 +1,6 @@
 {
   "sdk": {
-    "version": "10.0.103",
-    "rollForward": "minor"
+    "version": "10.0.100",
+    "rollForward": "latestPatch"
   }
 }

src/SwaggerProvider.Runtime/RuntimeHelpers.fs

@@ -145,6 +145,22 @@ module RuntimeHelpers =
             content
         | _ -> failwith $"Unexpected parameter type {boxedStream.GetType().Name} instead of IO.Stream"
 
+    // Unwraps F# option values: returns the inner value for Some, null for None.
+    // This prevents `Some(value)` from being sent as-is in form data.
+    let private unwrapFSharpOption(value: obj) : obj =
+        if isNull value then
+            null
+        else
+            let ty = value.GetType()
+
+            if
+                ty.IsGenericType
+                && ty.GetGenericTypeDefinition() = typedefof<option<_>>
+            then
+                ty.GetProperty("Value").GetValue(value)
+            else
+                value
+
     let getPropertyValues(object: obj) =
         if isNull object then
             Seq.empty
@@ -162,6 +178,7 @@ module RuntimeHelpers =
                     | _ -> prop.Name
 
                 prop.GetValue(object)
+                |> unwrapFSharpOption
                 |> Option.ofObj
                 |> Option.map(fun value -> (name, value)))