Turned getter-like extension methods into extension properties (#1157)

app/Tests/Tools/PowerPoint/LayoutPurposeTests.cs

@@ -15,9 +15,9 @@ public sealed class LayoutPurposeTests
         {
             foreach (var purpose in Enum.GetValues<LayoutPurpose>())
             {
-                Assert.That(purpose.Label(), Is.Not.Empty, $"The kind of slide {purpose} has no label.");
-                Assert.That(purpose.Question(), Does.EndWith("?"), $"The kind of slide {purpose} has no question.");
-                Assert.That(purpose.PromptDescription(), Is.Not.Empty.And.Not.EndWith("."), $"The kind of slide {purpose} has no description, or one which ends where the rule for the model goes on.");
+                Assert.That(purpose.Label, Is.Not.Empty, $"The kind of slide {purpose} has no label.");
+                Assert.That(purpose.Question, Does.EndWith("?"), $"The kind of slide {purpose} has no question.");
+                Assert.That(purpose.PromptDescription, Is.Not.Empty.And.Not.EndWith("."), $"The kind of slide {purpose} has no description, or one which ends where the rule for the model goes on.");
             }
         }
     }
@@ -28,7 +28,7 @@ public sealed class LayoutPurposeTests
     [Test]
     public void EveryKindOfSlideHasALabelOfItsOwn()
     {
-        var labels = Enum.GetValues<LayoutPurpose>().Select(purpose => purpose.Label()).ToList();
+        var labels = Enum.GetValues<LayoutPurpose>().Select(purpose => purpose.Label).ToList();
         Assert.That(labels, Is.Unique);
     }
 
@@ -42,7 +42,7 @@ public sealed class LayoutPurposeTests
     [Test]
     public void TheKindsOfSlidesFollowTheOrderOfTheAreas()
     {
-        var areas = Enum.GetValues<LayoutPurpose>().Select(purpose => purpose.Area()).ToList();
+        var areas = Enum.GetValues<LayoutPurpose>().Select(purpose => purpose.Area).ToList();
         using (Assert.EnterMultipleScope())
         {
             Assert.That(areas, Is.Ordered, "The kinds of an area stand together, and the areas follow their own order.");

app/Tests/Tools/PowerPoint/PresentationTemplateTests.cs

@@ -433,7 +433,7 @@ public sealed class PresentationTemplateTests
                 (PlaceholderRole.TEXT, 3, StackedHeadings.THIRD_TEXT, 8U),
             }), "The copies are numbered after the slots of the layout, in reading order.");
             Assert.That(slide.SlotCopies.Select(copy => copy.Slot.Capacity), Is.EqualTo(new TextCapacity?[] { new TextCapacity(1, 14), new TextCapacity(3, 25), new TextCapacity(1, 18), new TextCapacity(3, 25) }), "A copy holds what its size allows, as a moved slot does.");
-            Assert.That(slide.Slots.Select(slot => $"{slot.Role.CatalogName()} {slot.Ordinal}"), Is.EqualTo(new[] { "title 1", "label 1", "text 1", "label 2", "text 2", "label 3", "text 3" }));
+            Assert.That(slide.Slots.Select(slot => $"{slot.Role.CatalogName} {slot.Ordinal}"), Is.EqualTo(new[] { "title 1", "label 1", "text 1", "label 2", "text 2", "label 3", "text 3" }));
             Assert.That(slide.Contents.Select(content => (content.Slot.Role, content.Text)), Is.EqualTo(new[]
             {
                 (PlaceholderRole.TITLE, "Missions"),
@@ -500,7 +500,7 @@ public sealed class PresentationTemplateTests
         using (Assert.EnterMultipleScope())
         {
             Assert.That(slide.SlotCopies.Select(copy => (copy.Slot.Ordinal, copy.Slot.Bounds)), Is.EqualTo(new[] { (2, upperRight), (3, lowerRight) }));
-            Assert.That(slide.Slots.Select(slot => $"{slot.Role.CatalogName()} {slot.Ordinal}"), Is.EqualTo(new[] { "title 1", "label 1", "text 2", "text 1", "text 3" }), "The slots of the layout keep their numbers; a copy goes where a reader comes across it.");
+            Assert.That(slide.Slots.Select(slot => $"{slot.Role.CatalogName} {slot.Ordinal}"), Is.EqualTo(new[] { "title 1", "label 1", "text 2", "text 1", "text 3" }), "The slots of the layout keep their numbers; a copy goes where a reader comes across it.");
         }
     }