[tests] Fix DetectAppManifest_ExecutableProject_NoPList

`ProjectInstance.GetPropertyValue` returns empty string if the property doesn't exist. https://docs.microsoft.com/en-us/dotnet/api/microsoft.build.execution.projectinstance.getpropertyvalue?view=netframework-4.7.2#Microsoft_Build_Execution_ProjectInstance_GetPropertyValue_System_String_
dotnet · May 22, 2018 · 18f7168 · 18f7168
1 parent a5670f2
commit 18f7168
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/msbuild/tests/Xamarin.iOS.Tasks.Tests/TargetTests/TargetTests.cs b/msbuild/tests/Xamarin.iOS.Tasks.Tests/TargetTests/TargetTests.cs
@@ -557,7 +557,7 @@ public void DetectAppManifest_ExecutableProject_NoPList ()
 			MonoTouchProjectInstance = MonoTouchProject.CreateProjectInstance ();
 
 			RunTarget_WithErrors (MonoTouchProjectInstance, TargetName.DetectAppManifest);
-			Assert.IsNull (MonoTouchProjectInstance.GetPropertyValue ("_AppManifest"), "#1");
+			Assert.IsNullOrEmpty (MonoTouchProjectInstance.GetPropertyValue ("_AppManifest"), "#1");
 		}
 
 		[Test]