Merge pull request #140 from ralfs-gutmanis/master

Add ability to pass CharSequence instead of forcing String for contex…

src/test/java/com/samskivert/mustache/MustacheTest.java

@@ -17,9 +17,6 @@ import java.util.Optional;
 import java.util.TimeZone;
 
 import org.junit.Test;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
-import static org.junit.Assert.fail;
 
 /**
  * Mustache tests that can only be run on the JVM. Most tests should go in BaseMustacheTest so
@@ -54,6 +51,14 @@ public class MustacheTest extends SharedTests
         });
     }
 
+    @Test public void testCharSequenceVariable() {
+        Map<String, CharSequence> ctx = new HashMap<>();
+        StringBuffer stringBuffer = new StringBuffer();
+        stringBuffer.append("bar");
+        ctx.put("foo", stringBuffer);
+        test("bar", "{{foo}}", ctx);
+    }
+
     public interface HasDefault {
         default String getFoo () { return "bar"; }
     }