make enum parser case-insensitve fix #409

Author: jknack

coverage-report/src/test/java/org/jooby/issues/Issue409.java

@@ -0,0 +1,25 @@
+package org.jooby.issues;
+
+import org.jooby.test.ServerFeature;
+import org.junit.Test;
+
+public class Issue409 extends ServerFeature {
+
+  public enum Letter {A, B, C}
+
+  {
+    get("/409/:letter", req -> req.param("letter").toEnum(Letter.class));
+  }
+
+  @Test
+  public void caseInsensitveEnumParser() throws Exception {
+    request()
+        .get("/409/a")
+        .expect("A");
+
+    request()
+        .get("/409/A")
+        .expect("A");
+  }
+
+}

jooby/src/main/java/org/jooby/internal/BuiltinParser.java

@@ -195,9 +195,9 @@ public Object parse(final TypeLiteral<?> type, final Parser.Context ctx)
       if (Enum.class.isAssignableFrom(rawType)) {
         return ctx
             .param(values ->
-                java.lang.Enum.valueOf(rawType, values.get(0))
+                java.lang.Enum.valueOf(rawType, values.get(0).toUpperCase())
             ).body(body ->
-                java.lang.Enum.valueOf(rawType, body.text())
+                java.lang.Enum.valueOf(rawType, body.text().toUpperCase())
             );
       } else {
         return ctx.next();