Added that an DuplicateMigrationVersionError gets raised when multiple migrations have the same version number.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@2832 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

4 files changed, 40 insertions, 0 deletions

diff --git a/activerecord/test/fixtures/migrations_with_duplicate/1_people_have_last_names.rb b/activerecord/test/fixtures/migrations_with_duplicate/1_people_have_last_names.rb
new file mode 100644
index 0000000000..009729b330
--- /dev/null
+++ b/activerecord/test/fixtures/migrations_with_duplicate/1_people_have_last_names.rb
@@ -0,0 +1,9 @@
+class PeopleHaveLastNames < ActiveRecord::Migration
+  def self.up
+    add_column "people", "last_name", :string
+  end
+  
+  def self.down
+    remove_column "people", "last_name"
+  end
+end
\ No newline at end of file
diff --git a/activerecord/test/fixtures/migrations_with_duplicate/2_we_need_reminders.rb b/activerecord/test/fixtures/migrations_with_duplicate/2_we_need_reminders.rb
new file mode 100644
index 0000000000..ac5918f02a
--- /dev/null
+++ b/activerecord/test/fixtures/migrations_with_duplicate/2_we_need_reminders.rb
@@ -0,0 +1,12 @@
+class WeNeedReminders < ActiveRecord::Migration
+  def self.up
+    create_table("reminders") do |t|
+      t.column :content, :text
+      t.column :remind_at, :datetime
+    end
+  end
+  
+  def self.down
+    drop_table "reminders"
+  end
+end
\ No newline at end of file
diff --git a/activerecord/test/fixtures/migrations_with_duplicate/3_foo.rb b/activerecord/test/fixtures/migrations_with_duplicate/3_foo.rb
new file mode 100644
index 0000000000..916fe580fa
--- /dev/null
+++ b/activerecord/test/fixtures/migrations_with_duplicate/3_foo.rb
@@ -0,0 +1,7 @@
+class Foo < ActiveRecord::Migration
+  def self.up
+  end
+
+  def self.down
+  end
+end
\ No newline at end of file
diff --git a/activerecord/test/fixtures/migrations_with_duplicate/3_innocent_jointable.rb b/activerecord/test/fixtures/migrations_with_duplicate/3_innocent_jointable.rb
new file mode 100644
index 0000000000..21c9ca5328
--- /dev/null
+++ b/activerecord/test/fixtures/migrations_with_duplicate/3_innocent_jointable.rb
@@ -0,0 +1,12 @@
+class InnocentJointable < ActiveRecord::Migration
+  def self.up
+    create_table("people_reminders", :id => false) do |t|
+      t.column :reminder_id, :integer
+      t.column :person_id, :integer
+    end
+  end
+
+  def self.down
+    drop_table "people_reminders"
+  end
+end
\ No newline at end of file