1 files changed, 83 insertions, 0 deletions
diff --git a/activerecord/test/cases/relations_test.rb b/activerecord/test/cases/relations_test.rb
new file mode 100644
index 0000000000..6a39aa6e40
--- /dev/null
+++ b/activerecord/test/cases/relations_test.rb
@@ -0,0 +1,83 @@
+require "cases/helper"
+require 'models/post'
+require 'models/topic'
+require 'models/reply'
+require 'models/author'
+require 'models/entrant'
+require 'models/developer'
+require 'models/company'
+
+class RelationTest < ActiveRecord::TestCase
+  fixtures :authors, :topics, :entrants, :developers, :companies, :developers_projects, :accounts, :categories, :categorizations, :posts
+
+  def test_finding_with_conditions
+    assert_equal Author.find(:all, :conditions => "name = 'David'"), Author.all.conditions("name = 'David'").to_a
+  end
+
+  def test_finding_with_order
+    topics = Topic.all.order('id')
+    assert_equal 4, topics.size
+    assert_equal topics(:first).title, topics.first.title
+  end
+
+  def test_finding_with_order_and_take
+    entrants = Entrant.all.order("id ASC").limit(2).to_a
+
+    assert_equal(2, entrants.size)
+    assert_equal(entrants(:first).name, entrants.first.name)
+  end
+
+  def test_finding_with_order_limit_and_offset
+    entrants = Entrant.all.order("id ASC").limit(2).offset(1)
+
+    assert_equal(2, entrants.size)
+    assert_equal(entrants(:second).name, entrants.first.name)
+
+    entrants = Entrant.all.order("id ASC").limit(2).offset(2)
+    assert_equal(1, entrants.size)
+    assert_equal(entrants(:third).name, entrants.first.name)
+  end
+
+  def test_finding_with_group
+    developers = Developer.all.group("salary").select("salary").to_a
+    assert_equal 4, developers.size
+    assert_equal 4, developers.map(&:salary).uniq.size
+  end
+
+  def test_finding_with_hash_conditions_on_joined_table
+    firms = DependentFirm.all.joins(:account).conditions({:name => 'RailsCore', :accounts => { :credit_limit => 55..60 }}).to_a
+    assert_equal 1, firms.size
+    assert_equal companies(:rails_core), firms.first
+  end
+
+  def test_find_all_with_join
+    developers_on_project_one = Developer.all.joins('LEFT JOIN developers_projects ON developers.id = developers_projects.developer_id').conditions('project_id=1').to_a
+
+    assert_equal 3, developers_on_project_one.length
+    developer_names = developers_on_project_one.map { |d| d.name }
+    assert developer_names.include?('David')
+    assert developer_names.include?('Jamis')
+  end
+
+  def test_find_on_hash_conditions
+    assert_equal Topic.find(:all, :conditions => {:approved => false}), Topic.all.conditions({ :approved => false }).to_a
+  end
+
+  def test_joins_with_string_array
+    person_with_reader_and_post = Post.all.joins([
+        "INNER JOIN categorizations ON categorizations.post_id = posts.id",
+        "INNER JOIN categories ON categories.id = categorizations.category_id AND categories.type = 'SpecialCategory'"
+      ]
+    ).to_a
+    assert_equal 1, person_with_reader_and_post.size
+  end
+
+  def test_relation_responds_to_delegated_methods
+    relation = Topic.all
+
+    ["map", "uniq", "sort", "insert", "delete", "update"].each do |method|
+      assert relation.respond_to?(method)
+    end
+  end
+end
+