From 10003fa82bf14e73727557b2066f0072228828f4 Mon Sep 17 00:00:00 2001
From: X BELL <194058603+bellxalli@users.noreply.github.com>
Date: Thu, 16 Jan 2025 11:15:15 -0800
Subject: [PATCH] Fixed One Bug

---
 src/CharacterFrequencyCounter.java     |  7 ++++++-
 src/CharacterFrequencyCounterTest.java | 24 +++++++++++++++++++++++-
 2 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/src/CharacterFrequencyCounter.java b/src/CharacterFrequencyCounter.java
index d4e09c1..3fa401c 100644
--- a/src/CharacterFrequencyCounter.java
+++ b/src/CharacterFrequencyCounter.java
@@ -60,8 +60,13 @@ public int getFrequency(char c) {
      */
     public double getRelativePercentage(char c) {
         c = Character.toLowerCase(c);
-        int charCount = frequencyMap.get(c);
+        int charCount = 0;
+        if(frequencyMap.get(c) != null)
+        {
+            charCount = frequencyMap.get(c);
+        }
 
+        
         return ((double) charCount / totalCharacterCount) * 100;
     }
 }
diff --git a/src/CharacterFrequencyCounterTest.java b/src/CharacterFrequencyCounterTest.java
index bed3ee2..1058a09 100644
--- a/src/CharacterFrequencyCounterTest.java
+++ b/src/CharacterFrequencyCounterTest.java
@@ -3,5 +3,27 @@
 import org.junit.jupiter.api.Test;
 
 public class CharacterFrequencyCounterTest {
-    
+    @Test
+    public void testLAppearsThreeTimesInHelloWorld()
+    {
+        //arrange: set up test
+        CharacterFrequencyCounter counter = new CharacterFrequencyCounter("hello world");
+        
+        //act: making something happen calling a method usually
+        int actualCount = counter.getFrequency('l');
+
+        //assert: get results and check that they match expected results
+        assertEquals(3, actualCount);
+
+    }
+
+    @Test
+    public void testNoneOccurringCharacterPercentageIsZero()
+    {
+        CharacterFrequencyCounter counter = new CharacterFrequencyCounter("hi there");
+
+        double actualPercentage = counter.getRelativePercentage('z');
+
+        assertEquals(0.0, actualPercentage, 0.001);
+    }
 }
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