lib/versionaire/version.rb in versionaire-9.4.0 vs lib/versionaire/version.rb in versionaire-10.0.0

@@ -32,27 +32,19 @@
 
     def []= key, value
       super(key, value).tap { validate }
     end
 
-    def + other
-      revalue(other.to_h) { |previous, current| previous + current }
-    end
+    def +(other) = revalue(other.to_h) { |previous, current| previous + current }
 
-    def - other
-      revalue(other.to_h) { |previous, current| previous - current }
-    end
+    def -(other) = revalue(other.to_h) { |previous, current| previous - current }
 
-    def == other
-      hash == other.hash
-    end
+    def ==(other) = hash == other.hash
 
     alias_method :eql?, :==
 
-    def <=> other
-      to_s <=> other.to_s
-    end
+    def <=>(other) = to_s <=> other.to_s
 
     def down(key, value = 1) = revalue(key => value) { |previous, current| previous - current }
 
     def up(key, value = 1) = revalue(key => value) { |previous, current| previous + current }
 
@@ -62,10 +54,13 @@
     alias_method :values, :to_a
 
     private
 
     def validate
-      fail Errors::InvalidNumber if to_a.any? { |number| !number.is_a? Integer }
-      fail Errors::NegativeNumber if to_a.any?(&:negative?)
+      fail Error, "Major, minor, and patch must be a number." if to_a.any? do |number|
+                                                                   !number.is_a? Integer
+                                                                 end
+
+      fail Error, "Major, minor, and patch must be a positive number." if to_a.any?(&:negative?)
     end
   end
 end