ignore props.status in ctx.throw

lib/context.js

@@ -75,13 +75,14 @@ var proto = module.exports = {
     }
 
     var err = msg instanceof Error ? msg : new Error(msg);
-    err.status = status || err.status || 500;
-    err.expose = 'number' == typeof err.status && http.STATUS_CODES[err.status] && err.status < 500;
 
     if (props) {
       for (var key in props) err[key] = props[key];
     }
 
+    err.status = status || err.status || 500;
+    err.expose = 'number' == typeof err.status && http.STATUS_CODES[err.status] && err.status < 500;
+
     throw err;
   },
 

test/context/throw.js

@@ -139,4 +139,23 @@ describe('ctx.throw(status, msg, props)', function(){
       done();
     }
   })
-})
+
+  describe('when props include status', function(){
+    it('should be ignored', function(done){
+      var ctx = context();
+
+      try {
+        ctx.throw(400, 'msg', {
+          prop: true,
+          status: -1
+        });
+      } catch (err) {
+        assert('msg' == err.message);
+        assert(400 == err.status);
+        assert(true === err.expose);
+        assert(true === err.prop);
+        done();
+      }
+    })
+  })
+})