Minor issues fixes in tests.

Author: KeRNeLith

tests/QuikGraph.Data.Tests/DataRelationEdgeTests.cs

@@ -79,7 +79,7 @@ public void Equals()
             Assert.IsFalse(relation1.Equals(relation3));
             Assert.IsFalse(relation3.Equals(relation1));
 
-            Assert.AreNotEqual(relation1, null);
+            Assert.AreNotEqual(null, relation1);
             Assert.IsFalse(relation1.Equals(null));
 
             #region Local function

tests/QuikGraph.Graphviz.Tests/Dot/GraphvizColorTests.cs

@@ -85,7 +85,9 @@ public void Equals()
             Assert.IsTrue(color1 != color6);
             Assert.AreNotEqual(color1, color6);
 
-            Assert.AreNotEqual(color1, null);
+            Assert.AreNotEqual(null, color1);
+            Assert.IsFalse(color1.Equals(null));
+            Assert.AreNotEqual(new TestClass(), color1);
             Assert.AreNotEqual(color1, new TestClass());
         }
 

tests/QuikGraph.Tests/Algorithms/Condensation/CondensededEdgeTests.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using NUnit.Framework;
 using QuikGraph.Algorithms.Condensation;
 using QuikGraph.Tests.Structures;
@@ -99,7 +99,7 @@ public void Equals()
             Assert.AreNotEqual(edge1, edge3);
             Assert.AreNotEqual(edge1, edge4);
 
-            Assert.AreNotEqual(edge1, null);
+            Assert.AreNotEqual(null, edge1);
         }
     }
 }

tests/QuikGraph.Tests/Algorithms/Condensation/MergedEdgeTests.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using NUnit.Framework;
 using QuikGraph.Algorithms.Condensation;
 using QuikGraph.Tests.Structures;
@@ -119,7 +119,7 @@ public void Equals()
             Assert.AreNotEqual(edge1, edge3);
             Assert.AreNotEqual(edge1, edge4);
 
-            Assert.AreNotEqual(edge1, null);
+            Assert.AreNotEqual(null, edge1);
         }
 
         [Test]

tests/QuikGraph.Tests/Algorithms/TSP/TaskPriorityTests.cs

@@ -1,4 +1,4 @@
-using NUnit.Framework;
+using NUnit.Framework;
 using QuikGraph.Algorithms.TSP;
 
 namespace QuikGraph.Tests.Algorithms.TSP
@@ -50,7 +50,7 @@ public void Equals()
             Assert.IsTrue(priority1 != priority5);
             Assert.IsTrue(priority5 != priority1);
 
-            Assert.AreNotEqual(priority1, null);
+            Assert.AreNotEqual(null, priority1);
             Assert.IsFalse(priority1.Equals(null));
             Assert.IsFalse(priority1 == null);
             Assert.IsFalse(null == priority1);

tests/QuikGraph.Tests/Structures/Edges/EdgeTests.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using NUnit.Framework;
 
 namespace QuikGraph.Tests.Structures
@@ -56,7 +56,7 @@ public void Equals()
             Assert.IsFalse(edge1.Equals(edge2));
             Assert.IsFalse(edge2.Equals(edge1));
 
-            Assert.AreNotEqual(edge1, null);
+            Assert.AreNotEqual(null, edge1);
             Assert.IsFalse(edge1.Equals(null));
         }
 

tests/QuikGraph.Tests/Structures/Edges/EquatableEdgeTests.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using NUnit.Framework;
 
 namespace QuikGraph.Tests.Structures
@@ -58,7 +58,7 @@ public void Equals()
             Assert.IsFalse(edge1.Equals(edge3));
             Assert.IsFalse(edge3.Equals(edge1));
 
-            Assert.AreNotEqual(edge1, null);
+            Assert.AreNotEqual(null, edge1);
             Assert.IsFalse(edge1.Equals(null));
         }
 

tests/QuikGraph.Tests/Structures/Edges/EquatableTaggedEdgeTests.cs

@@ -73,7 +73,7 @@ public void Equals()
             Assert.IsFalse(edge4.Equals(edge6));
             Assert.IsFalse(edge6.Equals(edge4));
 
-            Assert.AreNotEqual(edge1, null);
+            Assert.AreNotEqual(null, edge1);
             Assert.IsFalse(edge1.Equals(null));
         }
 

tests/QuikGraph.Tests/Structures/Edges/EquatableTermEdgeTests.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using NUnit.Framework;
 
 namespace QuikGraph.Tests.Structures
@@ -99,7 +99,7 @@ public void Equals()
             Assert.IsTrue(edge5.Equals(edge6));
             Assert.IsTrue(edge6.Equals(edge5));
 
-            Assert.AreNotEqual(edge1, null);
+            Assert.AreNotEqual(null, edge1);
             Assert.IsFalse(edge1.Equals(null));
         }
 

tests/QuikGraph.Tests/Structures/Edges/EquatableUndirectedEdgeTests.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using NUnit.Framework;
 
 namespace QuikGraph.Tests.Structures
@@ -60,7 +60,7 @@ public void Equals()
             Assert.IsTrue(edge1.Equals(edge2));
             Assert.IsTrue(edge2.Equals(edge1));
 
-            Assert.AreNotEqual(edge1, null);
+            Assert.AreNotEqual(null, edge1);
             Assert.IsFalse(edge1.Equals(null));
         }