From 7cede86e72d474aca51a9c2c447b3ec35e49678a Mon Sep 17 00:00:00 2001
From: Whistler092 <iamrmairoo@gmail.com>
Date: Mon, 1 Oct 2018 23:26:19 -0500
Subject: [PATCH 1/2] add first or default method and tests

---
 .DS_Store                              | Bin 0 -> 10244 bytes
 ShittyLINQ/FirstOrDefault.cs           |  17 +++++++++++
 ShittyLinqTests/FirstOrDefaultTests.cs |  39 +++++++++++++++++++++++++
 3 files changed, 56 insertions(+)
 create mode 100644 .DS_Store
 create mode 100644 ShittyLINQ/FirstOrDefault.cs
 create mode 100644 ShittyLinqTests/FirstOrDefaultTests.cs

diff --git a/.DS_Store b/.DS_Store
new file mode 100644
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diff --git a/ShittyLINQ/FirstOrDefault.cs b/ShittyLINQ/FirstOrDefault.cs
new file mode 100644
index 0000000..74ce027
--- /dev/null
+++ b/ShittyLINQ/FirstOrDefault.cs
@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace ShittyLINQ
+{
+    public static partial class Extensions
+    {
+        public static T FirstOrDefault<T>(this IEnumerable<T> self)
+        {
+            if (self == null) throw new ArgumentNullException();
+
+            var iterator = self.GetEnumerator();
+            return !iterator.MoveNext() ? default(T) : iterator.Current;
+        }
+    }
+}
diff --git a/ShittyLinqTests/FirstOrDefaultTests.cs b/ShittyLinqTests/FirstOrDefaultTests.cs
new file mode 100644
index 0000000..3086a04
--- /dev/null
+++ b/ShittyLinqTests/FirstOrDefaultTests.cs
@@ -0,0 +1,39 @@
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using ShittyLINQ;
+using System;
+
+namespace ShittyTests
+{
+    [TestClass]
+    public class FirstOrDefaultTests
+    {
+        [TestMethod]
+        public void FirstOrDefault_GetFirstNumber()
+        {
+            int[] numbers = new int[] { 1, 2, 3, 4, 5 };
+            int expectedResult = 1;
+
+            int result = numbers.First();
+
+            Assert.AreEqual(expectedResult, result);
+        }
+
+        public void FirstOrDefaultTests_SourceIsEmpty()
+        {
+            int[] numbers = new int[] { };
+            int expectedResult = 0;
+
+            int result = numbers.First();
+            Assert.AreEqual(expectedResult, result);
+        }
+
+        [TestMethod]
+        [ExpectedException(typeof(ArgumentNullException))]
+        public void First_SourceIsNull()
+        {
+            int[] numbers = null;
+
+            int result = numbers.First();
+        }
+    }
+}

From 2673265cf7404038c8a0fad1f2dc008ebcf279cd Mon Sep 17 00:00:00 2001
From: Whistler092 <iamrmairoo@gmail.com>
Date: Mon, 1 Oct 2018 23:29:42 -0500
Subject: [PATCH 2/2] add first or default method and tests

---
 .DS_Store                              | Bin 10244 -> 0 bytes
 ShittyLINQ/FirstOrDefault.cs           |   1 +
 ShittyLinqTests/FirstOrDefaultTests.cs |   1 +
 3 files changed, 2 insertions(+)
 delete mode 100644 .DS_Store

diff --git a/.DS_Store b/.DS_Store
deleted file mode 100644
index c4b770082e12900b35b4150d384943f6562a7d8c..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

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diff --git a/ShittyLINQ/FirstOrDefault.cs b/ShittyLINQ/FirstOrDefault.cs
index 74ce027..afb51e2 100644
--- a/ShittyLINQ/FirstOrDefault.cs
+++ b/ShittyLINQ/FirstOrDefault.cs
@@ -6,6 +6,7 @@ namespace ShittyLINQ
 {
     public static partial class Extensions
     {
+        
         public static T FirstOrDefault<T>(this IEnumerable<T> self)
         {
             if (self == null) throw new ArgumentNullException();
diff --git a/ShittyLinqTests/FirstOrDefaultTests.cs b/ShittyLinqTests/FirstOrDefaultTests.cs
index 3086a04..b3727c0 100644
--- a/ShittyLinqTests/FirstOrDefaultTests.cs
+++ b/ShittyLinqTests/FirstOrDefaultTests.cs
@@ -4,6 +4,7 @@
 
 namespace ShittyTests
 {
+    
     [TestClass]
     public class FirstOrDefaultTests
     {