adding specs for added issue validations

spec/models/issue_spec.rb

@@ -1,7 +1,7 @@
 require File.expand_path(File.dirname(__FILE__) + '/../spec_helper')
 
 describe Issue do
-
+  describe 'behavior for #3200' do
     before(:each) do
       @example = Issue.new
       @example.stub(:move_to_project_without_transaction_without_autolink).and_return(false)
@@ -14,5 +14,59 @@ describe Issue do
     it do
       lambda { @example.move_to_project_without_transaction(nil) }.should_not raise_error(NoMethodError)
     end
+  end
+
+  describe 'validations' do
+    let(:issue) { Factory.build(:issue, :project => Factory.build(:project),
+                                        :status  => Factory.build(:issue_status),
+                                        :tracker => Factory.build(:tracker_feature)) }
+
+    describe 'story points' do
+      it 'allows empty values' do
+        issue.story_points.should be_nil
+        issue.should be_valid
+      end
+
+      it 'allows values greater than 0' do
+        issue.story_points = '1'
+        issue.should be_valid
+      end
+
+      it 'allows values less than 10.000' do
+        issue.story_points = '9999'
+        issue.should be_valid
+      end
+
+      it 'disallows negative values' do
+        issue.story_points = '-1'
+        issue.should_not be_valid
+      end
 
+      it 'disallows 0 and negative values' do
+        issue.story_points = '0'
+        issue.should_not be_valid
+
+        issue.story_points = '-1'
+        issue.should_not be_valid
+      end
+
+      it 'disallows greater or equal than 10.000' do
+        issue.story_points = '10000'
+        issue.should_not be_valid
+
+        issue.story_points = '10001'
+        issue.should_not be_valid
+      end
+
+      it 'disallows string values, that are not numbers' do
+        issue.story_points = 'abc'
+        issue.should_not be_valid
+      end
+
+      it 'disallows non-integers' do
+        issue.story_points = '1.3'
+        issue.should_not be_valid
+      end
+    end
+  end
 end