merging in changes for adding in fixedString

src/main/java/com/github/javafaker/Lorem.java

@@ -1,5 +1,7 @@
 package com.github.javafaker;
 
+import org.apache.commons.lang.StringUtils;
+
 import java.util.ArrayList;
 import java.util.List;
 
@@ -61,4 +63,19 @@ public class Lorem {
         }
         return paragraphs;
     }
+
+    /**
+     * Create a string with a fixed size. Can be useful for testing
+     * validator based on length string for example
+     *
+     * @param numberOfLetters size of the expected String
+     * @return a string with a fixed size
+     */
+    public String fixedString(int numberOfLetters) {
+        StringBuilder builder = new StringBuilder();
+        while (builder.length() < numberOfLetters) {
+            builder.append(sentence());
+        }
+        return StringUtils.substring(builder.toString(), 0, numberOfLetters);
+    }
 }

src/test/java/com/github/javafaker/LoremTest.java

@@ -1,5 +1,6 @@
 package com.github.javafaker;
 
+import org.junit.Assert;
 import org.junit.Test;
 
 import java.util.List;
@@ -81,4 +82,13 @@ public class LoremTest extends AbstractFakerTest {
         logger.info("Paragraphs: " + paragraphs);
         assertEquals(paragraphCount, paragraphs.size());
     }
+
+    @Test
+    public void shouldCreateFixedLengthString() {
+        assertEquals(10, faker.lorem().fixedString(10).length());
+        assertEquals(50, faker.lorem().fixedString(50).length());
+        assertEquals(0, faker.lorem().fixedString(0).length());
+        assertEquals(0, faker.lorem().fixedString(-1).length());
+    }
+
 }