rspec Account

lib/gnucash/account.rb

@@ -49,7 +49,7 @@ module Gnucash
       end
     end
 
-    def current_balance
+    def final_balance
       return Value.new(0) unless @balances.size > 0
       @balances.last[:value]
     end

spec/gnucash/account_spec.rb

@@ -0,0 +1,40 @@
+module Gnucash
+  describe Account do
+    before(:all) do
+      # just read the file once
+      @book = Gnucash.open("spec/books/sample.gnucash")
+      @checking = @book.find_account_by_full_name("Assets::Current Assets::Checking Account")
+      @salary = @book.find_account_by_full_name("Income::Salary")
+    end
+
+    it "gives access to the account name" do
+      @salary.name.should == "Salary"
+    end
+
+    it "gives access to the fully-qualified account name" do
+      @checking.full_name.should == "Assets::Current Assets::Checking Account"
+    end
+
+    it "gives access to the final balance" do
+      @checking.final_balance.should == Value.new(19743000)
+    end
+
+    describe '.balance_on' do
+      it "returns 0 if the given date is before the account's first transaction" do
+        @checking.balance_on("2006-12-12").should == Value.new(0)
+      end
+
+      it "returns the final balance if the given date is after the account's last transaction" do
+        @checking.balance_on("2013-10-10").should == @checking.final_balance
+      end
+
+      it "returns the balance on the given date" do
+        @checking.balance_on("2012-12-25").should == Value.new(19688000)
+      end
+
+      it "includes transactions that occur on the given date" do
+        @checking.balance_on("2007-03-27").should == Value.new(780000)
+      end
+    end
+  end
+end