scrambler preparing to merge.

src/edu/macalester/comp124/stringtransformer/ScramblerTransformer.java

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+package edu.macalester.comp124.stringtransformer;
+
+import java.util.Random;
+
+import edu.macalester.comp124.stringtransformer.StringTransformer;
+
+
+public class ScramblerTransformer extends StringTransformer {
+    public String transform(String s) {
+        String scrambledWord = "";
+        for (int i = 0; i <= s.length() - 1; i++) {
+            int m = randomIndex();
+            char ch = s.charAt(m);
+            String s1 = scrambledWord.substring(0, m);
+            String s2 = scrambledWord.substring(m + 1);
+            scrambledWord = s1 + ch + s2;
+        }
+        return scrambledWord;
+    }
+
+    public String toString() {
+        return "Word scrambled";
+    }
+
+    private int randomIndex() {
+        Random rand = new Random();
+        String word = "";
+        int index = rand.nextInt(word.length());
+        return index;
+    }
+}

test/edu/macalester/comp124/stringtransformer/ScramblerTransformerTest.java

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+package edu.macalester.comp124.stringtransformer;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+public class ScramblerTransformerTest {
+
+    private final StringTransformer scrambler = new ScramblerTransformer();
+
+    @Test
+    public void scramblesWord() {
+        assertEquals(2, characterCount("Football", 'o'));
+
+    }
+
+
+    private int characterCount(String s, char c) {
+        int countCharacter = 0;
+        for (int i = 0; i < s.length() - 1; i++) {
+            if (s.charAt(i) == c) {
+                countCharacter++;
+            }
+        }
+        return countCharacter;
+    }
+}