From 4db3a40471eed725ffffba5ea3f65da99e5e2971 Mon Sep 17 00:00:00 2001
From: David Heinemeier Hansson <david@loudthinking.com>
Date: Mon, 4 Jul 2005 08:54:27 +0000
Subject: Tests for association callbacks

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@1654 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
---
 activerecord/test/association_callbacks_test.rb | 100 ++++++++++++++++++++++++
 1 file changed, 100 insertions(+)
 create mode 100644 activerecord/test/association_callbacks_test.rb

(limited to 'activerecord')

diff --git a/activerecord/test/association_callbacks_test.rb b/activerecord/test/association_callbacks_test.rb
new file mode 100644
index 0000000000..359f853397
--- /dev/null
+++ b/activerecord/test/association_callbacks_test.rb
@@ -0,0 +1,100 @@
+require 'abstract_unit'
+require 'fixtures/post'
+require 'fixtures/comment'
+require 'fixtures/author'
+require 'fixtures/category'
+require 'fixtures/project'
+require 'fixtures/developer'
+
+class AssociationCallbacksTest < Test::Unit::TestCase
+  fixtures :posts, :authors, :projects, :developers
+
+  def setup
+   @david = authors(:david)
+   @thinking = posts(:thinking)
+   @authorless = posts(:authorless)
+   assert @david.post_log.empty?
+  end
+  
+  def test_adding_macro_callbacks
+    @david.posts_with_callbacks << @thinking
+    assert_equal ["before_adding#{@thinking.id}", "after_adding#{@thinking.id}"], @david.post_log
+    @david.posts_with_callbacks << @thinking
+    assert_equal ["before_adding#{@thinking.id}", "after_adding#{@thinking.id}", "before_adding#{@thinking.id}", 
+                  "after_adding#{@thinking.id}"], @david.post_log
+  end
+  
+  def test_adding_with_proc_callbacks
+    @david.posts_with_proc_callbacks << @thinking
+    assert_equal ["before_adding#{@thinking.id}", "after_adding#{@thinking.id}"], @david.post_log
+    @david.posts_with_proc_callbacks << @thinking
+    assert_equal ["before_adding#{@thinking.id}", "after_adding#{@thinking.id}", "before_adding#{@thinking.id}", 
+                  "after_adding#{@thinking.id}"], @david.post_log
+  end
+  
+  def test_removing_with_macro_callbacks
+    first_post, second_post = @david.posts_with_callbacks[0, 2]
+    @david.posts_with_callbacks.delete(first_post)
+    assert_equal ["before_removing#{first_post.id}", "after_removing#{first_post.id}"], @david.post_log
+    @david.posts_with_callbacks.delete(second_post)
+    assert_equal ["before_removing#{first_post.id}", "after_removing#{first_post.id}", "before_removing#{second_post.id}", 
+                  "after_removing#{second_post.id}"], @david.post_log
+  end
+
+  def test_removing_with_proc_callbacks
+    first_post, second_post = @david.posts_with_callbacks[0, 2]
+    @david.posts_with_proc_callbacks.delete(first_post)
+    assert_equal ["before_removing#{first_post.id}", "after_removing#{first_post.id}"], @david.post_log
+    @david.posts_with_proc_callbacks.delete(second_post)
+    assert_equal ["before_removing#{first_post.id}", "after_removing#{first_post.id}", "before_removing#{second_post.id}", 
+                  "after_removing#{second_post.id}"], @david.post_log
+  end
+  
+  def test_multiple_callbacks
+    @david.posts_with_multiple_callbacks << @thinking
+    assert_equal ["before_adding#{@thinking.id}", "before_adding_proc#{@thinking.id}", "after_adding#{@thinking.id}", 
+                  "after_adding_proc#{@thinking.id}"], @david.post_log
+    @david.posts_with_multiple_callbacks << @thinking
+    assert_equal ["before_adding#{@thinking.id}", "before_adding_proc#{@thinking.id}", "after_adding#{@thinking.id}", 
+                  "after_adding_proc#{@thinking.id}", "before_adding#{@thinking.id}", "before_adding_proc#{@thinking.id}", 
+                  "after_adding#{@thinking.id}", "after_adding_proc#{@thinking.id}"], @david.post_log
+  end
+  
+  def test_has_and_belongs_to_many_add_callback
+    david = developers(:david)
+    ar = projects(:active_record)
+    assert ar.developers_log.empty?
+    ar.developers_with_callbacks << david
+    assert_equal ["before_adding#{david.id}", "after_adding#{david.id}"], ar.developers_log
+    ar.developers_with_callbacks << david
+    assert_equal ["before_adding#{david.id}", "after_adding#{david.id}", "before_adding#{david.id}", 
+                  "after_adding#{david.id}"], ar.developers_log
+  end
+  
+  def test_has_and_belongs_to_many_remove_callback
+    david = developers(:david)
+    jamis = developers(:jamis)
+    ar = projects(:active_record)
+    assert ar.developers_log.empty?
+    ar.developers_with_callbacks.delete(david)
+    assert_equal ["before_removing#{david.id}", "after_removing#{david.id}"], ar.developers_log
+    
+    ar.developers_with_callbacks.delete(jamis)
+    assert_equal ["before_removing#{david.id}", "after_removing#{david.id}", "before_removing#{jamis.id}", 
+                  "after_removing#{jamis.id}"], ar.developers_log
+  end
+  
+  def test_dont_add_if_before_callback_raises_exception
+    assert !@david.unchangable_posts.include?(@authorless)
+    begin
+      @david.unchangable_posts << @authorless
+    rescue Exception => e
+    end
+    assert @david.post_log.empty?
+    assert !@david.unchangable_posts.include?(@authorless)
+    @david.reload
+    assert !@david.unchangable_posts.include?(@authorless)
+  end
+
+end
+
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