From 2fe0d139a8e8f969bbb35c88ad7806f1afb0940a Mon Sep 17 00:00:00 2001
From: Dan Siegel <me@dansiegel.net>
Date: Sat, 3 Oct 2026 21:41:17 -0600
Subject: [PATCH] Fix signed WPF test discovery under CI coverage collection

---
 tests/Wpf/Directory.Build.targets      |  8 ++++++++
 tests/Wpf/Wpf.NetFramework.runsettings | 16 ++++++++++++++++
 tests/Wpf/Wpf.runsettings              |  6 ++++++
 3 files changed, 30 insertions(+)
 create mode 100644 tests/Wpf/Directory.Build.targets
 create mode 100644 tests/Wpf/Wpf.NetFramework.runsettings
 create mode 100644 tests/Wpf/Wpf.runsettings

diff --git a/tests/Wpf/Directory.Build.targets b/tests/Wpf/Directory.Build.targets
new file mode 100644
index 00000000..defe18ec
--- /dev/null
+++ b/tests/Wpf/Directory.Build.targets
@@ -0,0 +1,8 @@
+<Project>
+  <Import Project="../Directory.Build.targets" />
+
+  <PropertyGroup>
+    <RunSettingsFilePath>$(MSBuildThisFileDirectory)Wpf.runsettings</RunSettingsFilePath>
+    <RunSettingsFilePath Condition="$(TargetFramework.StartsWith('net4'))">$(MSBuildThisFileDirectory)Wpf.NetFramework.runsettings</RunSettingsFilePath>
+  </PropertyGroup>
+</Project>
diff --git a/tests/Wpf/Wpf.NetFramework.runsettings b/tests/Wpf/Wpf.NetFramework.runsettings
new file mode 100644
index 00000000..541c1264
--- /dev/null
+++ b/tests/Wpf/Wpf.NetFramework.runsettings
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RunSettings>
+  <RunConfiguration>
+    <TreatNoTestsAsError>true</TreatNoTestsAsError>
+  </RunConfiguration>
+  <DataCollectionRunSettings>
+    <DataCollectors>
+      <DataCollector friendlyName="XPlat Code Coverage">
+        <Configuration>
+          <!-- Coverlet rewrites invalidate strong-name signatures checked by .NET Framework. -->
+          <Exclude>[*]*</Exclude>
+        </Configuration>
+      </DataCollector>
+    </DataCollectors>
+  </DataCollectionRunSettings>
+</RunSettings>
diff --git a/tests/Wpf/Wpf.runsettings b/tests/Wpf/Wpf.runsettings
new file mode 100644
index 00000000..ff7003c1
--- /dev/null
+++ b/tests/Wpf/Wpf.runsettings
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RunSettings>
+  <RunConfiguration>
+    <TreatNoTestsAsError>true</TreatNoTestsAsError>
+  </RunConfiguration>
+</RunSettings>