feat: add nunit assert AreNotSame

docs/Nunit3Analyzer.md

@@ -12,6 +12,8 @@ This is a generated file, please edit src\FluentAssertions.Analyzers.FluentAsser
 - [AssertIsNotEmpty](#scenario-assertisnotempty) - `collection.Should().NotBeEmpty();`
 - [AssertZero](#scenario-assertzero) - `number.Should().Be(0);`
 - [AssertNotZero](#scenario-assertnotzero) - `number.Should().NotBe(0);`
+- [AssertAreSame](#scenario-assertaresame) - `obj1.Should().BeSameAs(obj2);`
+- [AssertAreNotSame](#scenario-assertarenotsame) - `obj1.Should().NotBeSameAs(obj2);`
 - [CollectionAssertAreEqual](#scenario-collectionassertareequal) - `collection.Should().Equal(expected);`
 - [CollectionAssertAreNotEqual](#scenario-collectionassertarenotequal) - `collection.Should().NotEqual(expected);`
 - [CollectionAssertContains](#scenario-collectionassertcontains) - `collection.Should().Contain(2);`
@@ -308,6 +310,64 @@ Assert.That(number, Is.Not.Zero); /* fail message:   Expected: not equal to 0
 number.Should().NotBe(0); /* fail message: Did not expect number to be 0. */
 ```
 
+### scenario: AssertAreSame
+
+```cs
+// arrange
+var obj1 = new object();
+var obj2 = obj1;
+
+// old assertion:
+Assert.AreSame(obj1, obj2);
+
+// new assertion:
+obj1.Should().BeSameAs(obj2);
+```
+
+#### Failure messages
+
+```cs
+object obj1 = 6;
+object obj2 = "foo";
+
+// old assertion:
+Assert.AreSame(obj1, obj2); /* fail message:   Expected: same as 6
+  But was:  "foo"
+ */
+
+// new assertion:
+obj1.Should().BeSameAs(obj2); /* fail message: Expected obj1 to refer to "foo", but found 6. */
+```
+
+### scenario: AssertAreNotSame
+
+```cs
+// arrange
+object obj1 = 6;
+object obj2 = "foo";
+
+// old assertion:
+Assert.AreNotSame(obj1, obj2);
+
+// new assertion:
+obj1.Should().NotBeSameAs(obj2);
+```
+
+#### Failure messages
+
+```cs
+var obj1 = "foo";
+var obj2 = "foo";
+
+// old assertion:
+Assert.AreNotSame(obj1, obj2); /* fail message:   Expected: not same as "foo"
+  But was:  "foo"
+ */
+
+// new assertion:
+obj1.Should().NotBeSameAs(obj2); /* fail message: Did not expect obj1 to refer to "foo". */
+```
+
 ### scenario: CollectionAssertAreEqual
 
 ```cs

docs/Nunit4Analyzer.md

@@ -12,6 +12,8 @@ This is a generated file, please edit src\FluentAssertions.Analyzers.FluentAsser
 - [AssertIsNotEmpty](#scenario-assertisnotempty) - `collection.Should().NotBeEmpty();`
 - [AssertZero](#scenario-assertzero) - `number.Should().Be(0);`
 - [AssertNotZero](#scenario-assertnotzero) - `number.Should().NotBe(0);`
+- [AssertAreSame](#scenario-assertaresame) - `obj1.Should().BeSameAs(obj2);`
+- [AssertAreNotSame](#scenario-assertarenotsame) - `obj1.Should().NotBeSameAs(obj2);`
 - [CollectionAssertAreEqual](#scenario-collectionassertareequal) - `collection.Should().Equal(expected);`
 - [CollectionAssertAreNotEqual](#scenario-collectionassertarenotequal) - `collection.Should().NotEqual(expected);`
 - [CollectionAssertContains](#scenario-collectionassertcontains) - `collection.Should().Contain(2);`
@@ -333,12 +335,72 @@ Assert.That(number, Is.Not.Zero); /* fail message:   Assert.That(number, Is.Not.
 number.Should().NotBe(0); /* fail message: Did not expect number to be 0. */
 ```
 
+### scenario: AssertAreSame
+
+```cs
+// arrange
+var obj1 = new object();
+var obj2 = obj1;
+
+// old assertion:
+ClassicAssert.AreSame(obj1, obj2);
+
+// new assertion:
+obj1.Should().BeSameAs(obj2);
+```
+
+#### Failure messages
+
+```cs
+object obj1 = 6;
+object obj2 = "foo";
+
+// old assertion:
+ClassicAssert.AreSame(obj1, obj2); /* fail message:   Assert.That(actual, Is.SameAs(expected))
+  Expected: same as 6
+  But was:  "foo"
+ */
+
+// new assertion:
+obj1.Should().BeSameAs(obj2); /* fail message: Expected obj1 to refer to "foo", but found 6. */
+```
+
+### scenario: AssertAreNotSame
+
+```cs
+// arrange
+object obj1 = 6;
+object obj2 = "foo";
+
+// old assertion:
+ClassicAssert.AreNotSame(obj1, obj2);
+
+// new assertion:
+obj1.Should().NotBeSameAs(obj2);
+```
+
+#### Failure messages
+
+```cs
+var obj1 = new object();
+var obj2 = obj1;
+
+// old assertion:
+ClassicAssert.AreNotSame(obj1, obj2); /* fail message:   Assert.That(actual, Is.Not.SameAs(expected))
+  Expected: not same as <System.Object>
+  But was:  <System.Object>
+ */
+
+// new assertion:
+obj1.Should().NotBeSameAs(obj2); /* fail message: Did not expect obj1 to refer to System.Object (HashCode=2766117). */
+```
+
 ### scenario: CollectionAssertAreEqual
 
 ```cs
 // arrange
 var collection = new[] { 1, 2, 3 };
-var expected = new [] { 1, 2, 3 };
+var expected = new[] { 1, 2, 3 };
 
 // old assertion:
 CollectionAssert.AreEqual(expected, collection);

src/FluentAssertions.Analyzers.FluentAssertionAnalyzerDocs.Nunit4/Nunit4AnalyzerTests.cs

@@ -358,7 +358,7 @@ public void AssertIsNotEmpty_Failure_OldAssertion_2()
 
         // old assertion:
         CollectionAssert.IsNotEmpty(collection);
-}
+    }
 
     [Test, ExpectedAssertionException]
     public void AssertIsNotEmpty_Failure_NewAssertion()
@@ -458,12 +458,84 @@ public void AssertNotZero_Failure_NewAssertion()
         number.Should().NotBe(0);
     }
 
+    [Test]
+    public void AssertAreSame()
+    {
+        // arrange
+        var obj1 = new object();
+        var obj2 = obj1;
+
+        // old assertion:
+        ClassicAssert.AreSame(obj1, obj2);
+
+        // new assertion:
+        obj1.Should().BeSameAs(obj2);
+    }
+
+    [Test, ExpectedAssertionException]
+    public void AssertAreSame_Failure_OldAssertion()
+    {
+        // arrange
+        object obj1 = 6;
+        object obj2 = "foo";
+
+        // old assertion:
+        ClassicAssert.AreSame(obj1, obj2);
+    }
+
+    [Test, ExpectedAssertionException]
+    public void AssertAreSame_Failure_NewAssertion()
+    {
+        // arrange
+        object obj1 = 6;
+        object obj2 = "foo";
+
+        // new assertion:
+        obj1.Should().BeSameAs(obj2);
+    }
+
+    [Test]
+    public void AssertAreNotSame()
+    {
+        // arrange
+        object obj1 = 6;
+        object obj2 = "foo";
+
+        // old assertion:
+        ClassicAssert.AreNotSame(obj1, obj2);
+
+        // new assertion:
+        obj1.Should().NotBeSameAs(obj2);
+    }
+
+    [Test, ExpectedAssertionException]
+    public void AssertAreNotSame_Failure_OldAssertion()
+    {
+        // arrange
+        var obj1 = new object();
+        var obj2 = obj1;
+
+        // old assertion:
+        ClassicAssert.AreNotSame(obj1, obj2);
+    }
+
+    [Test, ExpectedAssertionException]
+    public void AssertAreNotSame_Failure_NewAssertion()
+    {
+        // arrange
+        var obj1 = new object();
+        var obj2 = obj1;
+
+        // new assertion:
+        obj1.Should().NotBeSameAs(obj2);
+    }
+
     [Test]
     public void CollectionAssertAreEqual()
     {
         // arrange
         var collection = new[] { 1, 2, 3 };
-        var expected = new [] { 1, 2, 3 };
+        var expected = new[] { 1, 2, 3 };
 
         // old assertion:
         CollectionAssert.AreEqual(expected, collection);

src/FluentAssertions.Analyzers.FluentAssertionAnalyzerDocs/Nunit3AnalyzerTests.cs

@@ -361,7 +361,7 @@ public void AssertIsNotEmpty_Failure_OldAssertion_2()
 
         // old assertion:
         CollectionAssert.IsNotEmpty(collection);
-}
+    }
 
     [TestMethod, ExpectedTestFrameworkException]
     public void AssertIsNotEmpty_Failure_NewAssertion()
@@ -461,6 +461,78 @@ public void AssertNotZero_Failure_NewAssertion()
         number.Should().NotBe(0);
     }
 
+    [TestMethod]
+    public void AssertAreSame()
+    {
+        // arrange
+        var obj1 = new object();
+        var obj2 = obj1;
+
+        // old assertion:
+        Assert.AreSame(obj1, obj2);
+
+        // new assertion:
+        obj1.Should().BeSameAs(obj2);
+    }
+
+    [TestMethod, ExpectedTestFrameworkException]
+    public void AssertAreSame_Failure_OldAssertion()
+    {
+        // arrange
+        object obj1 = 6;
+        object obj2 = "foo";
+
+        // old assertion:
+        Assert.AreSame(obj1, obj2);
+    }
+
+    [TestMethod, ExpectedTestFrameworkException]
+    public void AssertAreSame_Failure_NewAssertion()
+    {
+        // arrange
+        object obj1 = 6;
+        object obj2 = "foo";
+
+        // new assertion:
+        obj1.Should().BeSameAs(obj2);
+    }
+
+    [TestMethod]
+    public void AssertAreNotSame()
+    {
+        // arrange
+        object obj1 = 6;
+        object obj2 = "foo";
+
+        // old assertion:
+        Assert.AreNotSame(obj1, obj2);
+
+        // new assertion:
+        obj1.Should().NotBeSameAs(obj2);
+    }
+
+    [TestMethod, ExpectedTestFrameworkException]
+    public void AssertAreNotSame_Failure_OldAssertion()
+    {
+        // arrange
+        var obj1 = "foo";
+        var obj2 = "foo";
+
+        // old assertion:
+        Assert.AreNotSame(obj1, obj2);
+    }
+
+    [TestMethod, ExpectedTestFrameworkException]
+    public void AssertAreNotSame_Failure_NewAssertion()
+    {
+        // arrange
+        var obj1 = "foo";
+        var obj2 = "foo";
+
+        // new assertion:
+        obj1.Should().NotBeSameAs(obj2);
+    }
+
     [TestMethod]
     public void CollectionAssertAreEqual()
     {