From 98dc03ede9ca3bbfe7befdc0121d20f288b5cd55 Mon Sep 17 00:00:00 2001
From: Breno RdV <noreply@raccoon.ninja>
Date: Wed, 19 Jun 2024 20:05:20 -0400
Subject: [PATCH] Moar tests!

---
 .../BaseCalculatorHandlerTests.cs             | 19 +++++++++++++++++++
 .../Handlers/DoNothingMockCalculator.cs       | 12 ++++++++++++
 2 files changed, 31 insertions(+)
 create mode 100644 Raccoon.Ninja.TestHelpers/MockClasses/Handlers/DoNothingMockCalculator.cs

diff --git a/Raccoon.Ninja.Domain.Core.Tests/Calculators/Abstractions/BaseCalculatorHandlerTests.cs b/Raccoon.Ninja.Domain.Core.Tests/Calculators/Abstractions/BaseCalculatorHandlerTests.cs
index 78b996b..b3b6202 100644
--- a/Raccoon.Ninja.Domain.Core.Tests/Calculators/Abstractions/BaseCalculatorHandlerTests.cs
+++ b/Raccoon.Ninja.Domain.Core.Tests/Calculators/Abstractions/BaseCalculatorHandlerTests.cs
@@ -1,6 +1,7 @@
 using Raccoon.Ninja.Domain.Core.Calculators;
 using Raccoon.Ninja.Domain.Core.Calculators.Abstractions;
 using Raccoon.Ninja.Domain.Core.Calculators.Handlers;
+using Raccoon.Ninja.TestHelpers;
 using Raccoon.Ninja.TestHelpers.MockClasses.Handlers;
 
 namespace Raccoon.Ninja.Domain.Core.Tests.Calculators.Abstractions;
@@ -38,4 +39,22 @@ public void HandleNext_WithMultipleHandlers_ShouldCallNextHandler()
         // Assert
         result.Average.Should().Be(expectedAverage);
     }
+    
+    [Theory]
+    [MemberData(nameof(TheoryGenerator.InvalidFloatListsWithNull), MemberType = typeof(TheoryGenerator))]
+    public void HandleNext_WhenDataIsInvalid_ShouldReturnError(IList<float> glucoseReadings)
+    {
+        // Arrange
+        var data = Generators.CalculationDataMockSingle(glucoseReadings);
+        var handler = new DoNothingMockCalculator();
+        
+        // Act
+        var result = handler.Handle(data);
+        
+        // Assert
+        var status = result.Status;
+        status.Success.Should().BeFalse();
+        status.FirstFailedStep.Should().Be(nameof(DoNothingMockCalculator));
+        status.Message.Should().Be("No glucose values were provided.");
+    }
 }
\ No newline at end of file
diff --git a/Raccoon.Ninja.TestHelpers/MockClasses/Handlers/DoNothingMockCalculator.cs b/Raccoon.Ninja.TestHelpers/MockClasses/Handlers/DoNothingMockCalculator.cs
new file mode 100644
index 0000000..a1af3a7
--- /dev/null
+++ b/Raccoon.Ninja.TestHelpers/MockClasses/Handlers/DoNothingMockCalculator.cs
@@ -0,0 +1,12 @@
+using Raccoon.Ninja.Domain.Core.Calculators;
+using Raccoon.Ninja.Domain.Core.Calculators.Abstractions;
+
+namespace Raccoon.Ninja.TestHelpers.MockClasses.Handlers;
+
+public class DoNothingMockCalculator: BaseCalculatorHandler
+{
+    protected override CalculationData RunCalculation(CalculationData data)
+    {
+        return data;
+    }
+}
\ No newline at end of file