1 files changed, 9 insertions, 0 deletions
diff --git a/lib/unit.rb b/lib/unit.rb
index 632ea95..0761c8e 100644
--- a/lib/unit.rb
+++ b/lib/unit.rb
@@ -2,4 +2,13 @@ class Unit
   def *(price)
     price
   end
+
+  def vest_at(price)
+    @vested = true
+    @vesting_price = price
+  end
+
+  def vested?
+    @vested
+  end
 end