lib/rspec/iso8601.rb in rspec-iso8601-0.1.0 vs lib/rspec/iso8601.rb in rspec-iso8601-0.2.0

@@ -10,18 +10,24 @@
     return false unless actual.is_a?(String)
 
     matches = actual.match(RSpec::ISO8601::REGEXP)
 
     precision ||= @precision
-    matches && (precision.nil? || (matches[:usec]&.length || 0) == precision)
+    matches &&
+      (precision.nil? || (matches[:usec]&.length || 0) == precision) &&
+      (@utc != true || matches[:offset] == "Z")
   end
 
   description do
-    "be an ISO8601 string#{" with precision #{precision}" unless precision.nil?}"
+    "be an ISO8601#{" UTC" if @utc} string#{" with precision #{precision}" unless precision.nil?}"
   end
 
   chain :with_precision do |digits|
     @precision = digits
+  end
+
+  chain :in_utc do
+    @utc = true
   end
 end
 
 RSpec::Matchers.alias_matcher :an_iso8601_string, :be_an_iso8601_string