diff --git a/redo/osxaltest/box.m b/redo/osxaltest/box.m
new file mode 100644
index 00000000..521871fe
--- /dev/null
+++ b/redo/osxaltest/box.m
@@ -0,0 +1,40 @@
+// 31 july 2015
+#import "osxaltest.h"
+
+@interface tBox : NSObject<tControl> {
+	NSMutableArray *children;
+	NSView *sv;
+}
+@end
+
+@implementation tBox
+
+- (id)init
+{
+	self = [super init];
+	if (self) {
+		self->children = [NSMutableArray new];
+		self->sv = nil;
+	}
+	return self;
+}
+
+- (void)addControl:(NSObject<tControl> *)c stretchy:(BOOL)s
+{
+	// TODO
+}
+
+- (void)tAddToView:(NSView *)v
+{
+	self->sv = v;
+	// TODO
+}
+
+- (uintmax_t)tAddToAutoLayoutDictionary:(NSMutableDictionary *)views keyNumber:(uintmax_t)n
+{
+	// TODO
+}
+
+// TODO build auto layout constraints
+
+@end