Added simplecov

[erd-marker.git] / spec / erd_handler / label_spec.rb

diff --git a/spec/erd_handler/label_spec.rb b/spec/erd_handler/label_spec.rb
index 7879c6fafa9d2c84ea1e0e718b90b7295a86300b..6f09b95e91336434dfbec22cc3b35bbdfd8ac2ae 100644 (file)
--- a/spec/erd_handler/label_spec.rb
+++ b/spec/erd_handler/label_spec.rb
@@ -2,11 +2,34 @@ require 'spec_helper'
 
 module ErdHandler
   describe Label do
+    describe '#initialize' do
+      it "should give an error if not given an original string" do
+        # Label.new.should raise_error(ArgumentError)
+        expect {Label.new}.to raise_error(ArgumentError)
+      end
+      
+      it "should create a copy of the original as the processed string" do
+        test_label = "Test label"
+        l1 = Label.new test_label
+        l1.original.should == test_label
+      end
+      
+      it "should tidy the processed string if asked" do
+        test_label = "testingLabeller string, he_pontificated"
+        l1 = Label.new test_label.dup, true
+        l2 = Label.new test_label.dup
+        l2.split.downcase.stem
+        l1.processed.should == l2.processed
+      end
+    end # initialze
+    
     describe '#original' do
       it "reports the string it was initialised with" do
         test_label = "Test label"
         l1 = Label.new test_label
         l1.original.should == test_label
+        #l1 = Label.new
+        #l1.original.should == ""
       end
     end # original
 
@@ -84,9 +107,9 @@ module ErdHandler
       end
       
       it "splits the original using a default regexp" do
-        l1 = Label.new "Test label_string"
+        l1 = Label.new "Test label_string\tfred"
         l1.split
-        l1.processed.should == ["Test", "label", "string"]
+        l1.processed.should == ["Test", "label", "string", "fred"]
       end
       
       it "splits the original on camel case by default" do
@@ -142,9 +165,39 @@ module ErdHandler
         l1.tidy
         l2.split.downcase.stem
         l1.processed.should == l2.processed
-
       end
     end # tidy
     
+    describe "#length" do
+      it "returns the length of the processed label" do
+        l1 = Label.new "testingLabeller string, he_pontificated"
+        l1.tidy
+        l1.length.should == l1.processed.join('').length
+      end
+    end # length
+    
+    describe "#levenshtein" do
+      it "calculates the Levenshtein distance of the processed string" do
+        l1 = Label.new "Fred"
+        l1.levenshtein("Fred").should == 0
+        l1.levenshtein("Free").should == 1
+        l1.levenshtein("").should == 4
+        l2 = Label.new ""
+        l2.levenshtein("Free").should == 4
+        l2.levenshtein("").should == 0
+        l3 = Label.new "meilenstein"
+        l3.levenshtein("levenshtein").should == 4
+        l4 = Label.new "testingLabeller string, he_pontificated"
+        l4.tidy.levenshtein("testlabelstringhepontif").should == 0
+        l4.tidy.levenshtein("testlabelXstringhepontif").should == 1
+      end
+      
+      it "calculates the Levenshtein distance between Labels" do
+        l1 = Label.new "meilenstein"
+        l2 = Label.new "levenshtein"
+        l1.levenshtein(l2).should == 4
+      end
+    end
+    
   end
 end