chore(sonar): wrap independent assertions in Assert.Multiple (NUnit2045)

Driven by `dotnet format analyzers --diagnostics NUnit2045`. The fixer
groups consecutive independent `Assert.That(...)` calls into
`Assert.Multiple(() => { ... })`, so a failing assertion no longer
short-circuits the block — every failure inside the group is reported,
which gives much better diagnostics on multi-property tests.

Audit confirmed no Assert.Throws / Assert.Fail / Assert.Catch / Assert.Pass
/ Assert.DoesNotThrow got pulled inside a Multiple block (those need to
short-circuit). All 1180 tests pass.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

tests/Strata.SqlTools.SqlServer.Tests/SqlServer/StatementExpressionParserTests.cs

@@ -280,8 +280,11 @@ public class StatementExpressionParserTests
 
         // Act & Assert
         var ex = Assert.Throws<ArgumentNullException>(() => _parser.Parse(sql));
-        Assert.That(ex.ParamName, Is.EqualTo("sqlStatement"));
-        Assert.That(ex.Message, Does.Contain("SQL statement cannot be null or empty"));
+        Assert.Multiple(() =>
+        {
+            Assert.That(ex.ParamName, Is.EqualTo("sqlStatement"));
+            Assert.That(ex.Message, Does.Contain("SQL statement cannot be null or empty"));
+        });
     }
 
     [Test]
@@ -351,9 +354,12 @@ public class StatementExpressionParserTests
         // Act
         var success = _parser.TryParse(sql, out var result);
 
-        // Assert
-        Assert.That(success, Is.True);
-        Assert.That(result, Is.Not.Null);
+        Assert.Multiple(() =>
+        {
+            // Assert
+            Assert.That(success, Is.True);
+            Assert.That(result, Is.Not.Null);
+        });
         Assert.That(result, Is.InstanceOf<NumberLiteralExpression>());
     }
 
@@ -366,9 +372,12 @@ public class StatementExpressionParserTests
         // Act
         var success = _parser.TryParse(sql, out var result);
 
-        // Assert
-        Assert.That(success, Is.True);
-        Assert.That(result, Is.Not.Null);
+        Assert.Multiple(() =>
+        {
+            // Assert
+            Assert.That(success, Is.True);
+            Assert.That(result, Is.Not.Null);
+        });
     }
 
     [Test]
@@ -380,9 +389,12 @@ public class StatementExpressionParserTests
         // Act
         var success = _parser.TryParse(sql, out var result);
 
-        // Assert
-        Assert.That(success, Is.True);
-        Assert.That(result, Is.Not.Null);
+        Assert.Multiple(() =>
+        {
+            // Assert
+            Assert.That(success, Is.True);
+            Assert.That(result, Is.Not.Null);
+        });
         Assert.That(result, Is.InstanceOf<SumFunction>());
     }
 
@@ -395,9 +407,12 @@ public class StatementExpressionParserTests
         // Act
         var success = _parser.TryParse(sql, out var result);
 
-        // Assert
-        Assert.That(success, Is.False);
-        Assert.That(result, Is.Null);
+        Assert.Multiple(() =>
+        {
+            // Assert
+            Assert.That(success, Is.False);
+            Assert.That(result, Is.Null);
+        });
     }
 
     [Test]
@@ -409,9 +424,12 @@ public class StatementExpressionParserTests
         // Act
         var success = _parser.TryParse(sql, out var result);
 
-        // Assert
-        Assert.That(success, Is.False);
-        Assert.That(result, Is.Null);
+        Assert.Multiple(() =>
+        {
+            // Assert
+            Assert.That(success, Is.False);
+            Assert.That(result, Is.Null);
+        });
     }
 
     [Test]
@@ -423,9 +441,12 @@ public class StatementExpressionParserTests
         // Act
         var success = _parser.TryParse(sql, out var result);
 
-        // Assert
-        Assert.That(success, Is.False);
-        Assert.That(result, Is.Null);
+        Assert.Multiple(() =>
+        {
+            // Assert
+            Assert.That(success, Is.False);
+            Assert.That(result, Is.Null);
+        });
     }
 
     [Test]
@@ -437,9 +458,12 @@ public class StatementExpressionParserTests
         // Act
         var success = _parser.TryParse(sql, out var result);
 
-        // Assert
-        Assert.That(success, Is.False);
-        Assert.That(result, Is.Null);
+        Assert.Multiple(() =>
+        {
+            // Assert
+            Assert.That(success, Is.False);
+            Assert.That(result, Is.Null);
+        });
     }
 
     [Test]
@@ -451,10 +475,13 @@ public class StatementExpressionParserTests
         // Act
         var success = _parser.TryParse(sql, out var result, out var errorMessage);
 
-        // Assert
-        Assert.That(success, Is.True);
-        Assert.That(result, Is.Not.Null);
-        Assert.That(errorMessage, Is.Null);
+        Assert.Multiple(() =>
+        {
+            // Assert
+            Assert.That(success, Is.True);
+            Assert.That(result, Is.Not.Null);
+            Assert.That(errorMessage, Is.Null);
+        });
     }
 
     [Test]
@@ -466,10 +493,13 @@ public class StatementExpressionParserTests
         // Act
         var success = _parser.TryParse(sql, out var result, out var errorMessage);
 
-        // Assert
-        Assert.That(success, Is.False);
-        Assert.That(result, Is.Null);
-        Assert.That(errorMessage, Is.Not.Null);
+        Assert.Multiple(() =>
+        {
+            // Assert
+            Assert.That(success, Is.False);
+            Assert.That(result, Is.Null);
+            Assert.That(errorMessage, Is.Not.Null);
+        });
         Assert.That(errorMessage, Does.Contain("SQL statement cannot be null or empty"));
     }
 
@@ -482,10 +512,13 @@ public class StatementExpressionParserTests
         // Act
         var success = _parser.TryParse(sql, out var result, out var errorMessage);
 
-        // Assert
-        Assert.That(success, Is.False);
-        Assert.That(result, Is.Null);
-        Assert.That(errorMessage, Is.Not.Null);
+        Assert.Multiple(() =>
+        {
+            // Assert
+            Assert.That(success, Is.False);
+            Assert.That(result, Is.Null);
+            Assert.That(errorMessage, Is.Not.Null);
+        });
         Assert.That(errorMessage, Does.Contain("Invalid syntax"));
     }
 
@@ -498,10 +531,13 @@ public class StatementExpressionParserTests
         // Act
         var success = _parser.TryParse(sql, out var result, out var errorMessage);
 
-        // Assert
-        Assert.That(success, Is.False);
-        Assert.That(result, Is.Null);
-        Assert.That(errorMessage, Is.Not.Null);
+        Assert.Multiple(() =>
+        {
+            // Assert
+            Assert.That(success, Is.False);
+            Assert.That(result, Is.Null);
+            Assert.That(errorMessage, Is.Not.Null);
+        });
         Assert.That(errorMessage, Does.Contain("not recognized"));
     }