add range specs

olbrich · Feb 3, 2012 · 31a7f07 · 31a7f07
1 parent 1853ef2
commit 31a7f07
Showing 1 changed file with 16 additions and 0 deletions.
diff --git a/spec/ruby-units/range_spec.rb b/spec/ruby-units/range_spec.rb
@@ -0,0 +1,16 @@
+require File.dirname(__FILE__) + '/../spec_helper'
+
+describe "Range" do
+
+  context "of integer units" do
+    subject { (Unit('1 mm')..Unit('3 mm')) }
+    it { should include(Unit('2 mm')) }
+    its(:to_a) { should == [ Unit('1 mm'), Unit('2 mm'), Unit('3 mm') ] }
+  end
+
+  context "of floating point units" do
+    subject { (Unit('1.5 mm')..Unit('3.5 mm')) }
+    it { should include(Unit('2.0 mm')) }
+    specify { expect { subject.to_a }.to raise_exception(ArgumentError)}
+  end
+end