test/unitwise/atom_test.rb in unitwise-0.2.1 vs test/unitwise/atom_test.rb in unitwise-0.2.2

@@ -21,15 +21,16 @@
       subject.find("m").must_be_instance_of Unitwise::Atom
       subject.find("V").must_be_instance_of Unitwise::Atom
     end
   end
 
-  let(:second) { Unitwise::Atom.find("s") }
-  let(:yard) { Unitwise::Atom.find("[yd_i]")}
-  let(:pi) { Unitwise::Atom.find("[pi]")}
+  let(:second)  { Unitwise::Atom.find("s") }
+  let(:yard)    { Unitwise::Atom.find("[yd_i]")}
+  let(:pi)      { Unitwise::Atom.find("[pi]")}
   let(:celsius) { Unitwise::Atom.find("Cel")}
-  let(:pfu) { Unitwise::Atom.find("[PFU]")}
+  let(:pfu)     { Unitwise::Atom.find("[PFU]")}
+  let(:joule)   { Unitwise::Atom.find("J")}
   describe "#scale" do
     it "must be nil for base atoms" do
       second.scale.must_equal nil
     end
     it "sould be a Scale object for derived atoms" do
@@ -104,14 +105,14 @@
       yard.scalar.must_equal 0.9144000000000001
       pi.scalar.must_equal 3.141592653589793
     end
   end
 
-  describe "#key" do
-    it "must return the dim or the property" do
-      second.key.must_equal "T"
-      pi.key.must_equal "number"
-      celsius.key.must_equal "temperature"
+  describe "#dim" do
+    it "must return the dim" do
+      second.dim.must_equal 'T'
+      yard.dim.must_equal 'L'
+      joule.dim.must_equal 'L2.M.T-2'
     end
   end
 
   describe "#measurement=" do
     it "must create a new measurement object and set attributes" do
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