added method to Options which returns a random value of the given enu… (#84)

* added method to Options which returns a random value of the given enumeration

* fixed BeerTest#testName regex

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

@@ -12,4 +12,9 @@ public class Options {
     public String option(String... options) {
         return options[randomService.nextInt(options.length)];
     }
+
+    public <E extends Enum<E>> E option(Class<E> enumeration) {
+        E[] enumConstants = enumeration.getEnumConstants();
+        return enumConstants[randomService.nextInt(enumConstants.length)];
+    }
 }

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

@@ -17,7 +17,7 @@ public class BeerTest {
 
     @Test
     public void testName() {
-        assertThat(faker.beer().name(), matchesRegularExpression("[A-Za-z'() 0-9-’’]+"));
+       assertThat(faker.beer().name(), matchesRegularExpression("[\\p{L}'()\\., 0-9-’’]+"));
     }
 
     @Test

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

@@ -26,4 +26,13 @@ public class OptionsTest {
     public void testOptionWithVarargs() {
         assertThat(faker.options().option("A", "B", "C"), isOneOf(options));
     }
+
+    @Test
+    public void testOptionWithEnum() {
+        assertThat(faker.options().option(Day.class), isOneOf(Day.values()));
+    }
+
+    public enum Day {
+        MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY, SUNDAY
+    }
 }