Update test project

Author: CSharpBender

NHUnitExample/Controllers/TestController.cs

@@ -72,7 +72,7 @@ public async Task<IActionResult> InitializeDatabase(CancellationToken token)
                  {
                      Name = "Product " + i,
                      Colors = new List<Color> { colors.ElementAt(random.Next(0, colors.Count - 1)) },
-                     Price = random.Next(100, 10000)/100m
+                     Price = random.Next(100, 10000) / 100m
                  }
             ).ToList();
             await _dbContext.Products.InsertManyAsync(products, token);
@@ -235,5 +235,24 @@ public async Task<IActionResult> TestMultipleQueries(CancellationToken token)
                 Top10ExpensiveProducts = expensiveProducts,
             });
         }
+
+        [HttpGet("/testSqlQuery")]
+        public async Task<IActionResult> TestSqlQuery(CancellationToken token, int customerId = 11)
+        {
+            var sqlQuery = @"select Id as CustomerId,
+                                    Concat(FirstName,' ',LastName) as FullName,
+                                    BirthDate
+                             from ""Customer""
+                             where Id= :customerId";
+            var customResult = await _dbContext.ExecuteScalarAsync<SqlQueryCustomResult>(sqlQuery, new { customerId }, token);
+            return Ok(customResult);
+        }
+        class SqlQueryCustomResult
+        {
+            public SqlQueryCustomResult() { }
+            public int CustomerId { get; set; }
+            public string FullName { get; set; }
+            public DateTime BirthDate { get; set; }
+        }
     }
 }

README.md

@@ -78,3 +78,12 @@ In some rare cases you need to execute your own queries and NHUnit provides this
 - ExecuteListAsync
 - ExecuteScalarAsync
 - ExecuteNonQueryAsync
+
+```csharp
+var sqlQuery = @"select Id as CustomerId,
+                        Concat(FirstName,' ',LastName) as FullName,
+                        BirthDate
+                        from ""Customer""
+                        where Id= :customerId";
+var customResult = await _dbContext.ExecuteScalarAsync<SqlQueryCustomResult>(sqlQuery, new { customerId = 11 });
+```

src/NHUnit/UnitOfWork.cs

@@ -193,6 +193,10 @@ protected IQuery CreateQueryWithParameters(string queryString, object parameters
             if (parameters != null)
             {
                 var properties = parameters.GetType().GetProperties(BindingFlags.Instance | BindingFlags.Public | BindingFlags.GetProperty);
+                if (!properties.Any())
+                {
+                    throw new ArgumentException("Object with public properties expected for query creation", nameof(parameters));
+                }
                 foreach (var property in properties)
                 {
                     var name = property.Name;