Add Simple Unit Tests

Tests/Lib/EmojiConverter.test.cs

@@ -0,0 +1,75 @@
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using Geekbot.net.Lib;
+using Xunit;
+
+namespace Tests.Lib
+{
+    public class EmojiConverter_test
+    {
+        public static IEnumerable<object[]> NumberToEmojiTestData
+        {
+            get
+            {
+                yield return new object[]
+                {
+                    2,
+                    ":two:"
+                };
+                
+                yield return new object[]
+                {
+                    10,
+                    "🔟"
+                };
+                
+                yield return new object[]
+                {
+                    15,
+                    ":one::five:"
+                };
+                
+                yield return new object[]
+                {
+                    null,
+                    ":zero:"
+                };
+            }
+        }
+
+
+        [Theory, MemberData(nameof(NumberToEmojiTestData))]
+        public async Task NumberToEmoji(int number, string expectedResult)
+        {
+            var emojiConverter = new EmojiConverter();
+            var result = emojiConverter.numberToEmoji(number);
+            Assert.Equal(result, expectedResult);
+        }
+        
+        public static IEnumerable<object[]> textToEmojiTestData
+        {
+            get
+            {
+                yield return new object[]
+                {
+                    "test",
+                    ":regional_indicator_t::regional_indicator_e::regional_indicator_s::regional_indicator_t:"
+                };
+                yield return new object[]
+                {
+                    "Best3+?",
+                    ":b::regional_indicator_e::regional_indicator_s::regional_indicator_t::three::heavy_plus_sign::question:"
+                };
+            }
+        }
+
+
+        [Theory, MemberData(nameof(textToEmojiTestData))]
+        public async Task TextToEmoji(string text, string expectedResult)
+        {
+            var emojiConverter = new EmojiConverter();
+            var result = emojiConverter.textToEmoji(text);
+            Assert.Equal(result, expectedResult);
+        }
+    }
+}