Detect more Classic Assert (#791)

* Add ClassicModel Analyzer/CodeFixes for Postive and Negative

* Add ClassicModel Analyzer/CodeFixes for (Not)AssignableFrom

* "Fix" markdown long lines

* Code review changes

documentation/NUnit2051.md

@@ -0,0 +1,82 @@
+# NUnit2051
+
+## Consider using Assert.That(expr, Is.Positive) instead of ClassicAssert.Positive(expr)
+
+| Topic    | Value
+| :--      | :--
+| Id       | NUnit2051
+| Severity | Info
+| Enabled  | True
+| Category | Assertion
+| Code     | [ClassicModelAssertUsageAnalyzer](https://github.com/nunit/nunit.analyzers/blob/master/src/nunit.analyzers/ClassicModelAssertUsage/ClassicModelAssertUsageAnalyzer.cs)
+
+## Description
+
+Consider using the constraint model, `Assert.That(expr, Is.Positive)`, instead of the classic model,
+`ClassicAssert.Positive(expr)`.
+
+## Motivation
+
+The classic Assert model contains less flexibility than the constraint model,
+so this analyzer marks usages of `ClassicAssert.Positive` from the classic Assert model.
+
+```csharp
+[Test]
+public void Test()
+{
+    ClassicAssert.Positive(expression);
+}
+```
+
+## How to fix violations
+
+The analyzer comes with a code fix that will replace `ClassicAssert.Positive(expression)` with
+`Assert.That(expression, Is.Positive)`. So the code block above will be changed into.
+
+```csharp
+[Test]
+public void Test()
+{
+    Assert.That(expression, Is.Positive);
+}
+```
+
+<!-- start generated config severity -->
+## Configure severity
+
+### Via ruleset file
+
+Configure the severity per project, for more info see
+[MSDN](https://learn.microsoft.com/en-us/visualstudio/code-quality/using-rule-sets-to-group-code-analysis-rules?view=vs-2022).
+
+### Via .editorconfig file
+
+```ini
+# NUnit2051: Consider using Assert.That(expr, Is.Positive) instead of ClassicAssert.Positive(expr)
+dotnet_diagnostic.NUnit2051.severity = chosenSeverity
+```
+
+where `chosenSeverity` can be one of `none`, `silent`, `suggestion`, `warning`, or `error`.
+
+### Via #pragma directive
+
+```csharp
+#pragma warning disable NUnit2051 // Consider using Assert.That(expr, Is.Positive) instead of ClassicAssert.Positive(expr)
+Code violating the rule here
+#pragma warning restore NUnit2051 // Consider using Assert.That(expr, Is.Positive) instead of ClassicAssert.Positive(expr)
+```
+
+Or put this at the top of the file to disable all instances.
+
+```csharp
+#pragma warning disable NUnit2051 // Consider using Assert.That(expr, Is.Positive) instead of ClassicAssert.Positive(expr)
+```
+
+### Via attribute `[SuppressMessage]`
+
+```csharp
+[System.Diagnostics.CodeAnalysis.SuppressMessage("Assertion",
+    "NUnit2051:Consider using Assert.That(expr, Is.Positive) instead of ClassicAssert.Positive(expr)",
+    Justification = "Reason...")]
+```
+<!-- end generated config severity -->

documentation/NUnit2052.md

@@ -0,0 +1,82 @@
+# NUnit2052
+
+## Consider using Assert.That(expr, Is.Negative) instead of ClassicAssert.Negative(expr)
+
+| Topic    | Value
+| :--      | :--
+| Id       | NUnit2052
+| Severity | Info
+| Enabled  | True
+| Category | Assertion
+| Code     | [ClassicModelAssertUsageAnalyzer](https://github.com/nunit/nunit.analyzers/blob/master/src/nunit.analyzers/ClassicModelAssertUsage/ClassicModelAssertUsageAnalyzer.cs)
+
+## Description
+
+Consider using the constraint model, `Assert.That(expr, Is.Negative)`, instead of the classic model,
+`ClassicAssert.Negative(expr)`.
+
+## Motivation
+
+The classic Assert model contains less flexibility than the constraint model,
+so this analyzer marks usages of `ClassicAssert.Negative` from the classic Assert model.
+
+```csharp
+[Test]
+public void Test()
+{
+    ClassicAssert.Negative(expression);
+}
+```
+
+## How to fix violations
+
+The analyzer comes with a code fix that will replace `ClassicAssert.Negative(expression)` with
+`Assert.That(expression, Is.Negative)`. So the code block above will be changed into.
+
+```csharp
+[Test]
+public void Test()
+{
+    Assert.That(expression, Is.Negative);
+}
+```
+
+<!-- start generated config severity -->
+## Configure severity
+
+### Via ruleset file
+
+Configure the severity per project, for more info see
+[MSDN](https://learn.microsoft.com/en-us/visualstudio/code-quality/using-rule-sets-to-group-code-analysis-rules?view=vs-2022).
+
+### Via .editorconfig file
+
+```ini
+# NUnit2052: Consider using Assert.That(expr, Is.Negative) instead of ClassicAssert.Negative(expr)
+dotnet_diagnostic.NUnit2052.severity = chosenSeverity
+```
+
+where `chosenSeverity` can be one of `none`, `silent`, `suggestion`, `warning`, or `error`.
+
+### Via #pragma directive
+
+```csharp
+#pragma warning disable NUnit2052 // Consider using Assert.That(expr, Is.Negative) instead of ClassicAssert.Negative(expr)
+Code violating the rule here
+#pragma warning restore NUnit2052 // Consider using Assert.That(expr, Is.Negative) instead of ClassicAssert.Negative(expr)
+```
+
+Or put this at the top of the file to disable all instances.
+
+```csharp
+#pragma warning disable NUnit2052 // Consider using Assert.That(expr, Is.Negative) instead of ClassicAssert.Negative(expr)
+```
+
+### Via attribute `[SuppressMessage]`
+
+```csharp
+[System.Diagnostics.CodeAnalysis.SuppressMessage("Assertion",
+    "NUnit2052:Consider using Assert.That(expr, Is.Negative) instead of ClassicAssert.Negative(expr)",
+    Justification = "Reason...")]
+```
+<!-- end generated config severity -->

documentation/NUnit2053.md

@@ -0,0 +1,82 @@
+# NUnit2053
+
+## Consider using Assert.That(actual, Is.AssignableFrom(expected)) instead of ClassicAssert.IsAssignableFrom(expected, actual)
+
+| Topic    | Value
+| :--      | :--
+| Id       | NUnit2053
+| Severity | Info
+| Enabled  | True
+| Category | Assertion
+| Code     | [ClassicModelAssertUsageAnalyzer](https://github.com/nunit/nunit.analyzers/blob/master/src/nunit.analyzers/ClassicModelAssertUsage/ClassicModelAssertUsageAnalyzer.cs)
+
+## Description
+
+Consider using the constraint model, `Assert.That(actual, Is.AssignableFrom(expected))`, instead of the classic model,
+`ClassicAssert.IsAssignableFrom(expected, actual)`.
+
+## Motivation
+
+The assert `ClassicAssert.IsAssignableFrom` from the classic Assert model makes it easy to confuse the `expected` and the
+`actual` argument, so this analyzer marks usages of `ClassicAssert.IsAssignableFrom`.
+
+```csharp
+[Test]
+public void Test()
+{
+    ClassicAssert.IsAssignableFrom(expected, actual);
+}
+```
+
+## How to fix violations
+
+The analyzer comes with a code fix that will replace `ClassicAssert.IsAssignableFrom(expected, actual)` with
+`Assert.That(actual, Is.AssignableFrom(expected))`. So the code block above will be changed into.
+
+```csharp
+[Test]
+public void Test()
+{
+    Assert.That(actual, Is.AssignableFrom(expected));
+}
+```
+
+<!-- start generated config severity -->
+## Configure severity
+
+### Via ruleset file
+
+Configure the severity per project, for more info see
+[MSDN](https://learn.microsoft.com/en-us/visualstudio/code-quality/using-rule-sets-to-group-code-analysis-rules?view=vs-2022).
+
+### Via .editorconfig file
+
+```ini
+# NUnit2053: Consider using Assert.That(actual, Is.AssignableFrom(expected)) instead of ClassicAssert.IsAssignableFrom(expected, actual)
+dotnet_diagnostic.NUnit2053.severity = chosenSeverity
+```
+
+where `chosenSeverity` can be one of `none`, `silent`, `suggestion`, `warning`, or `error`.
+
+### Via #pragma directive
+
+```csharp
+#pragma warning disable NUnit2053 // Consider using Assert.That(actual, Is.AssignableFrom(expected)) instead of ClassicAssert.IsAssignableFrom(expected, actual)
+Code violating the rule here
+#pragma warning restore NUnit2053 // Consider using Assert.That(actual, Is.AssignableFrom(expected)) instead of ClassicAssert.IsAssignableFrom(expected, actual)
+```
+
+Or put this at the top of the file to disable all instances.
+
+```csharp
+#pragma warning disable NUnit2053 // Consider using Assert.That(actual, Is.AssignableFrom(expected)) instead of ClassicAssert.IsAssignableFrom(expected, actual)
+```
+
+### Via attribute `[SuppressMessage]`
+
+```csharp
+[System.Diagnostics.CodeAnalysis.SuppressMessage("Assertion",
+    "NUnit2053:Consider using Assert.That(actual, Is.AssignableFrom(expected)) instead of ClassicAssert.IsAssignableFrom(expected, actual)",
+    Justification = "Reason...")]
+```
+<!-- end generated config severity -->

documentation/NUnit2054.md

@@ -0,0 +1,83 @@
+# NUnit2054
+
+<!-- markdownlint-disable-next-line MD013 -->
+## Consider using Assert.That(actual, Is.Not.AssignableFrom(expected)) instead of ClassicAssert.IsNotAssignableFrom(expected, actual)
+
+| Topic    | Value
+| :--      | :--
+| Id       | NUnit2054
+| Severity | Info
+| Enabled  | True
+| Category | Assertion
+| Code     | [ClassicModelAssertUsageAnalyzer](https://github.com/nunit/nunit.analyzers/blob/master/src/nunit.analyzers/ClassicModelAssertUsage/ClassicModelAssertUsageAnalyzer.cs)
+
+## Description
+
+Consider using the constraint model, `Assert.That(actual, Is.Not.AssignableFrom(expected))`, instead of the classic model,
+`ClassicAssert.IsNotAssignableFrom(expected, actual)`.
+
+## Motivation
+
+The assert `ClassicAssert.IsNotAssignableFrom` from the classic Assert model makes it easy to confuse the `expected`
+and the `actual` argument, so this analyzer marks usages of `ClassicAssert.IsNotAssignableFrom`.
+
+```csharp
+[Test]
+public void Test()
+{
+    ClassicAssert.IsNotAssignableFrom(expected, actual);
+}
+```
+
+## How to fix violations
+
+The analyzer comes with a code fix that will replace `ClassicAssert.IsNotAssignableFrom(expected, actual)` with
+`Assert.That(actual, Is.Not.AssignableFrom(expected))`. So the code block above will be changed into.
+
+```csharp
+[Test]
+public void Test()
+{
+    Assert.That(actual, Is.Not.AssignableFrom(expected));
+}
+```
+
+<!-- start generated config severity -->
+## Configure severity
+
+### Via ruleset file
+
+Configure the severity per project, for more info see
+[MSDN](https://learn.microsoft.com/en-us/visualstudio/code-quality/using-rule-sets-to-group-code-analysis-rules?view=vs-2022).
+
+### Via .editorconfig file
+
+```ini
+# NUnit2054: Consider using Assert.That(actual, Is.Not.AssignableFrom(expected)) instead of ClassicAssert.IsNotAssignableFrom(expected, actual)
+dotnet_diagnostic.NUnit2054.severity = chosenSeverity
+```
+
+where `chosenSeverity` can be one of `none`, `silent`, `suggestion`, `warning`, or `error`.
+
+### Via #pragma directive
+
+```csharp
+#pragma warning disable NUnit2054 // Consider using Assert.That(actual, Is.Not.AssignableFrom(expected)) instead of ClassicAssert.IsNotAssignableFrom(expected, actual)
+Code violating the rule here
+#pragma warning restore NUnit2054 // Consider using Assert.That(actual, Is.Not.AssignableFrom(expected)) instead of ClassicAssert.IsNotAssignableFrom(expected, actual)
+```
+
+Or put this at the top of the file to disable all instances.
+
+```csharp
+#pragma warning disable NUnit2054 // Consider using Assert.That(actual, Is.Not.AssignableFrom(expected)) instead of ClassicAssert.IsNotAssignableFrom(expected, actual)
+```
+
+### Via attribute `[SuppressMessage]`
+
+```csharp
+[System.Diagnostics.CodeAnalysis.SuppressMessage("Assertion",
+    "NUnit2054:Consider using Assert.That(actual, Is.Not.AssignableFrom(expected)) instead of ClassicAssert.IsNotAssignableFrom(expected, actual)",
+    Justification = "Reason...")]
+```
+<!-- end generated config severity -->

documentation/index.md

@@ -109,6 +109,10 @@ Rules which improve assertions in the test code.
 | [NUnit2048](https://github.com/nunit/nunit.analyzers/tree/master/documentation/NUnit2048.md) | Consider using Assert.That(...) instead of StringAssert(...) | :white_check_mark: | :warning: | :white_check_mark: |
 | [NUnit2049](https://github.com/nunit/nunit.analyzers/tree/master/documentation/NUnit2049.md) | Consider using Assert.That(...) instead of CollectionAssert(...) | :white_check_mark: | :warning: | :white_check_mark: |
 | [NUnit2050](https://github.com/nunit/nunit.analyzers/tree/master/documentation/NUnit2050.md) | NUnit 4 no longer supports string.Format specification | :white_check_mark: | :exclamation: | :white_check_mark: |
+| [NUnit2051](https://github.com/nunit/nunit.analyzers/tree/master/documentation/NUnit2051.md) | Consider using Assert.That(expr, Is.Positive) instead of ClassicAssert.Positive(expr) | :white_check_mark: | :information_source: | :white_check_mark: |
+| [NUnit2052](https://github.com/nunit/nunit.analyzers/tree/master/documentation/NUnit2052.md) | Consider using Assert.That(expr, Is.Negative) instead of ClassicAssert.Negative(expr) | :white_check_mark: | :information_source: | :white_check_mark: |
+| [NUnit2053](https://github.com/nunit/nunit.analyzers/tree/master/documentation/NUnit2053.md) | Consider using Assert.That(actual, Is.AssignableFrom(expected)) instead of ClassicAssert.IsAssignableFrom(expected, actual) | :white_check_mark: | :information_source: | :white_check_mark: |
+| [NUnit2054](https://github.com/nunit/nunit.analyzers/tree/master/documentation/NUnit2054.md) | Consider using Assert.That(actual, Is.Not.AssignableFrom(expected)) instead of ClassicAssert.IsNotAssignableFrom(expected, actual) | :white_check_mark: | :information_source: | :white_check_mark: |
 
 ## Suppressor Rules (NUnit3001 - )
 

src/nunit.analyzers.sln

@@ -1,6 +1,6 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Version 17
+# 17
 VisualStudioVersion = 17.2.32210.308
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "nunit.analyzers", "nunit.analyzers\nunit.analyzers.csproj", "{74151914-3C12-4EAC-8FD5-5766EBEA35A3}"
@@ -93,6 +93,10 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "documentation", "documentat
 		..\documentation\NUnit2048.md = ..\documentation\NUnit2048.md
 		..\documentation\NUnit2049.md = ..\documentation\NUnit2049.md
 		..\documentation\NUnit2050.md = ..\documentation\NUnit2050.md
+		..\documentation\NUnit2051.md = ..\documentation\NUnit2051.md
+		..\documentation\NUnit2052.md = ..\documentation\NUnit2052.md
+		..\documentation\NUnit2053.md = ..\documentation\NUnit2053.md
+		..\documentation\NUnit2054.md = ..\documentation\NUnit2054.md
 		..\documentation\NUnit3001.md = ..\documentation\NUnit3001.md
 		..\documentation\NUnit3002.md = ..\documentation\NUnit3002.md
 		..\documentation\NUnit3003.md = ..\documentation\NUnit3003.md