Increase test coverage

src/Evelyn.Core.Tests/ReadModel/Projections/ToggleState/ProjectEvents/EnvironmentStateAddedSpecs.cs

@@ -58,11 +58,6 @@ private void GivenTheProjectAlreadyHasAToggleState()
                 DataFixture.Create<string>());
         }
 
-        private void GivenTheProjectionStreamVersionIsTheSameAsTheNextEvent()
-        {
-            StreamPosition = OriginalProjection.Audit.StreamPosition;
-        }
-
         private async Task WhenWeHandleAnEnvironmentStateAddedEvent()
         {
             Event = new EnvironmentStateAdded(

src/Evelyn.Core.Tests/ReadModel/Projections/ToggleState/ProjectEvents/EnvironmentStateDeletedSpecs.cs

@@ -11,7 +11,6 @@ namespace Evelyn.Core.Tests.ReadModel.Projections.ToggleState.ProjectEvents
     using NSubstitute;
     using TestStack.BDDfy;
     using Xunit;
-    using Projections = Evelyn.Core.ReadModel.Projections;
 
     public class EnvironmentStateDeletedSpecs : ProjectionBuilderHarness<EnvironmentStateDeleted>
     {

src/Evelyn.Core.Tests/ReadModel/Projections/ToggleState/ProjectEvents/ToggleStateAddedSpecs.cs

@@ -7,7 +7,6 @@ namespace Evelyn.Core.Tests.ReadModel.Projections.ToggleState.ProjectEvents
     using FluentAssertions;
     using TestStack.BDDfy;
     using Xunit;
-    using Projections = Evelyn.Core.ReadModel.Projections;
 
     public class ToggleStateAddedSpecs : ProjectionBuilderHarness<ToggleStateAdded>
     {
@@ -21,6 +20,16 @@ public void ProjectionDoesNotExist()
                 .BDDfy();
         }
 
+        [Fact]
+        public void ProjectionAlreadyBuilt()
+        {
+            this.Given(_ => GivenTheProjectionExists())
+                .And(_ => GivenTheProjectionStreamVersionIsTheSameAsTheNextEvent())
+                .When(_ => WhenWeHandleAToggleStateAddedEvent())
+                .Then(_ => ThenTheStoredProjectionIsUnchanged())
+                .BDDfy();
+        }
+
         [Fact]
         public void Nominal()
         {
@@ -37,14 +46,6 @@ protected override async Task HandleEventImplementation()
             await ProjectionBuilder.Handle(StreamPosition, Event, StoppingToken);
         }
 
-        private void GivenTheProjectionHasStateForAnotherEnvironment()
-        {
-            OriginalProjection.ToggleState.AddEnvironmentState(
-                DataFixture.Create<Projections.EventAudit>(),
-                DataFixture.Create<string>(),
-                DataFixture.Create<string>());
-        }
-
         private async Task WhenWeHandleAToggleStateAddedEvent()
         {
             Event = DataFixture.Build<ToggleStateAdded>()

src/Evelyn.Core.Tests/ReadModel/Projections/ToggleState/ProjectEvents/ToggleStateChangedSpecs.cs

@@ -19,6 +19,16 @@ public void ProjectionDoesNotExist()
                 .BDDfy();
         }
 
+        [Fact]
+        public void ProjectionAlreadyBuilt()
+        {
+            this.Given(_ => GivenTheProjectionExists())
+                .And(_ => GivenTheProjectionStreamVersionIsTheSameAsTheNextEvent())
+                .When(_ => WhenWeHandleAToggleStateChangedEvent())
+                .Then(_ => ThenTheStoredProjectionIsUnchanged())
+                .BDDfy();
+        }
+
         [Fact]
         public void Nominal()
         {

src/Evelyn.Core.Tests/ReadModel/Projections/ToggleState/ProjectEvents/ToggleStateDeletedSpecs.cs

@@ -21,6 +21,16 @@ public void ProjectionDoesNotExist()
                 .BDDfy();
         }
 
+        [Fact]
+        public void ProjectionAlreadyBuilt()
+        {
+            this.Given(_ => GivenTheProjectionExists())
+                .And(_ => GivenTheProjectionStreamVersionIsTheSameAsTheNextEvent())
+                .When(_ => WhenWeHandleAToggleStateDeletedEvent())
+                .Then(_ => ThenTheStoredProjectionIsUnchanged())
+                .BDDfy();
+        }
+
         [Fact]
         public void MultipleToggleStatesExist()
         {

src/Evelyn.Core.Tests/ReadModel/Projections/ToggleState/ProjectionBuilderHarness.cs

@@ -53,5 +53,10 @@ protected void GivenTheProjectionHasStateForOurEnvironment()
                 EnvironmentKey,
                 DataFixture.Create<string>());
         }
+
+        protected void GivenTheProjectionStreamVersionIsTheSameAsTheNextEvent()
+        {
+            StreamPosition = OriginalProjection.Audit.StreamPosition;
+        }
     }
 }