scenario tests for equality

cathalmchale · Jul 2, 2019 · e85e10c · e85e10c
1 parent dd99e33
commit e85e10c
Show file tree

Hide file tree

Showing 2 changed files with 27 additions and 7 deletions.
diff --git a/test/Ray.Domain.Test/Tuples/ComparePointsAndVectorsTests.cs b/test/Ray.Domain.Test/Tuples/ComparePointsAndVectorsTests.cs
@@ -11,15 +11,15 @@ public sealed class ComparePointsAndVectorsTests : Feature
         private Vector4 _tuple = new Vector4(),
             _comparisonInstance = new Vector4();
 
-        [Given(@"a <- tuple (\d\.\d) (-\d\.\d) (\d\.\d)")]
+        [Given(@"a = tuple (\d\.\d) (-\d\.\d) (\d\.\d)")]
         public void InitializationValues_SetOnTupleInstance(float x, float y, float z)
         {
             _tuple.X = x;
             _tuple.Y = y;
             _tuple.Z = z;
         }
 
-        [And(@"b <- tuple (\d\.\d) (-\d\.\d) (\d\.\d)")]
+        [And(@"b = tuple (\d\.\d) (-\d\.\d) (\d\.\d)")]
         public void InitializationValues_SetOnComparisonInstance(float x, float y, float z)
         {
             _comparisonInstance.X = x;
@@ -33,7 +33,11 @@ public void InitializationValues_SetOnTupleInstance(float w)
             _tuple.W = w;
         }
 
-
+        [And(@"b.w = (\d\.\d)")]
+        public void InitializationValues_SetOnComparisonInstance(float w)
+        {
+            _comparisonInstance.W = w;
+        }
 
         [Then(@"a.x = (\d\.\d)")]
         public void ReadX_VerifyValue(float x)

diff --git a/test/Ray.Domain.Test/features/tuples/ComparePointsAndVectors.feature b/test/Ray.Domain.Test/features/tuples/ComparePointsAndVectors.feature
@@ -4,7 +4,7 @@
 	I want the ability to create tuples (points and vectors)
 
 Background:
-	Given a <- tuple 4.3 -4.2 3.1
+	Given a = tuple 4.3 -4.2 3.1
 
 Scenario: A tuple with w=1.0 is a point
 	And a.w = 1.0
@@ -23,11 +23,11 @@ Scenario: A tuple with w=0.0 is a vector
 	And a.IsVector = true
 
 Scenario: Identically initialized tuples are equal
-	And b <- tuple 4.3 -4.2 3.1
+	And b = tuple 4.3 -4.2 3.1
 	Then a = b is true
 
 Scenario: Differently initialized tuples are not equal
-	And b <- tuple 5.4 -3.3 1.7
+	And b = tuple 5.4 -3.3 1.7
 	Then a = b is false
 
 Scenario Outline: A tuple can be a point or a vector
@@ -44,4 +44,20 @@ Scenario Outline: A tuple can be a point or a vector
 
 	Examples: Weighted as Vector
 		| w   | p     | v     |
-		| 0.0 | false | true  |
+		| 0.0 | false | true  |
+
+Scenario Outline: Tuple equality depends on x, y, z and w
+	And b = tuple <x> <y> <z>
+	And b.w = <w>
+	Then a = b is <e>
+
+	Examples: Identical (x, y, z), w varies
+		| x   | y    | z   | w   | e     |
+		| 4.3 | -4.2 | 3.1 | 1.0 | false |
+		| 4.3 | -4.2 | 3.1 | 0.0 | true  |
+
+	Examples: Varying (x, y, z), w constant
+		| x   | y    | z   | w   | e     |
+		| 4.3 | -4.2 | 3.1 | 0.0 | true  | #first validate +ve expectation
+		| 3.4 | -2.4 | 1.3 | 0.0 | false |
+		| 4.3 | -4.2 | 3.2 | 0.0 | false |