Don't validate start date when updating an issue without changing it (#14086).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11931 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/unit/issue_test.rb

@@ -92,6 +92,27 @@ class IssueTest < ActiveSupport::TestCase
     assert_include 'Due date must be greater than start date', issue.errors.full_messages
   end
 
+  def test_start_date_lesser_than_soonest_start_should_not_validate_on_create
+    issue = Issue.generate(:start_date => '2013-06-04')
+    issue.stubs(:soonest_start).returns(Date.parse('2013-06-10'))
+    assert !issue.valid?
+    assert_include "Start date cannot be earlier than 06/10/2013 because of preceding issues", issue.errors.full_messages
+  end
+
+  def test_start_date_lesser_than_soonest_start_should_not_validate_on_update_if_changed
+    issue = Issue.generate!(:start_date => '2013-06-04')
+    issue.stubs(:soonest_start).returns(Date.parse('2013-06-10'))
+    issue.start_date = '2013-06-07'
+    assert !issue.valid?
+    assert_include "Start date cannot be earlier than 06/10/2013 because of preceding issues", issue.errors.full_messages
+  end
+
+  def test_start_date_lesser_than_soonest_start_should_validate_on_update_if_unchanged
+    issue = Issue.generate!(:start_date => '2013-06-04')
+    issue.stubs(:soonest_start).returns(Date.parse('2013-06-10'))
+    assert issue.valid?
+  end
+
   def test_estimated_hours_should_be_validated
     set_language_if_valid 'en'
     ['-2'].each do |invalid|