Add test for single delete two code files remain (#536)

Author: adegeo

snippets5000/PullRequestSimulations/data.json

@@ -319,6 +319,21 @@
   },
 
   // BAD items
+  {
+    "Name": "Delete - Two code files remain no project",
+    "ExpectedResults": [
+      {
+        "ResultCode": 1,
+        "DiscoveredProject": ""
+      }
+    ],
+    "Items": [
+      {
+        "ItemType": "Delete",
+        "Path": "snippets/bad/loose-files/DeletedFile.cs"
+      }
+    ]
+  },
   {
     "Name": "Edit - Project missing",
     "ExpectedResults": [

snippets5000/PullRequestSimulations/snippets/bad/loose-files/LinqExtensions.cs

@@ -0,0 +1,69 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace Custom.Linq.Extensions
+{
+    // <LinqExtensionClass>
+    public static class EnumerableExtension
+    {
+        public static double Median(this IEnumerable<double>? source)
+        {
+            if (source is null || !source.Any())
+            {
+                throw new InvalidOperationException("Cannot compute median for a null or empty set.");
+            }
+
+            var sortedList =
+                source.OrderBy(number => number).ToList();
+
+            int itemIndex = sortedList.Count / 2;
+
+            if (sortedList.Count % 2 == 0)
+            {
+                // Even number of items.
+                return (sortedList[itemIndex] + sortedList[itemIndex - 1]) / 2;
+            }
+            else
+            {
+                // Odd number of items.
+                return sortedList[itemIndex];
+            }
+        }
+    }
+    // </LinqExtensionClass>
+
+    public static class OtherExtensions
+    {
+        // <IntOverload>
+        // int overload
+        public static double Median(this IEnumerable<int> source) =>
+            (from number in source select (double)number).Median();
+        // </IntOverload>
+
+        // <GenericOverload>
+        // generic overload
+        public static double Median<T>(
+            this IEnumerable<T> numbers, Func<T, double> selector) =>
+            (from num in numbers select selector(num)).Median();
+        // </GenericOverload>
+
+        // <SequenceElement>
+        // Extension method for the IEnumerable<T> interface.
+        // The method returns every other element of a sequence.
+        public static IEnumerable<T> AlternateElements<T>(this IEnumerable<T> source)
+        {
+            int index = 0;
+            foreach (T element in source)
+            {
+                if (index % 2 == 0)
+                {
+                    yield return element;
+                }
+
+                index++;
+            }
+        }
+        // </SequenceElement>
+    }
+}

snippets5000/PullRequestSimulations/snippets/bad/loose-files/Program.cs

@@ -0,0 +1,63 @@
+using Custom.Linq.Extensions;
+
+// <MedianUsage>
+double[] numbers = { 1.9, 2, 8, 4, 5.7, 6, 7.2, 0 };
+var query = numbers.Median();
+
+Console.WriteLine($"double: Median = {query}");
+// This code produces the following output:
+//     double: Median = 4.85
+// </MedianUsage>
+
+// <OverloadUsage>
+double[] numbers1 = { 1.9, 2, 8, 4, 5.7, 6, 7.2, 0 };
+var query1 = numbers1.Median();
+
+Console.WriteLine($"double: Median = {query1}");
+
+int[] numbers2 = { 1, 2, 3, 4, 5 };
+var query2 = numbers2.Median();
+
+Console.WriteLine($"int: Median = {query2}");
+// This code produces the following output:
+//     double: Median = 4.85
+//     int: Median = 3
+// </OverloadUsage>
+
+// <GenericUsage>
+int[] numbers3 = { 1, 2, 3, 4, 5 };
+
+/*
+    You can use the num => num lambda expression as a parameter for the Median method
+    so that the compiler will implicitly convert its value to double.
+    If there is no implicit conversion, the compiler will display an error message.
+*/
+var query3 = numbers3.Median(num => num);
+
+Console.WriteLine($"int: Median = {query3}");
+
+string[] numbers4 = { "one", "two", "three", "four", "five" };
+
+// With the generic overload, you can also use numeric properties of objects.
+var query4 = numbers4.Median(str => str.Length);
+
+Console.WriteLine($"string: Median = {query4}");
+// This code produces the following output:
+//     int: Median = 3
+//     string: Median = 4
+// </GenericUsage>
+
+// <SequenceUsage>
+string[] strings = { "a", "b", "c", "d", "e" };
+
+var query5 = strings.AlternateElements();
+
+foreach (var element in query5)
+{
+    Console.WriteLine(element);
+}
+// This code produces the following output:
+//     a
+//     c
+//     e
+// </SequenceUsage>