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Diffstat (limited to 'activerecord/test/cases/relation_test.rb')
-rw-r--r-- | activerecord/test/cases/relation_test.rb | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/activerecord/test/cases/relation_test.rb b/activerecord/test/cases/relation_test.rb new file mode 100644 index 0000000000..7bdbd773b6 --- /dev/null +++ b/activerecord/test/cases/relation_test.rb @@ -0,0 +1,139 @@ +require "cases/helper" +require 'models/post' +require 'models/comment' + +module ActiveRecord + class RelationTest < ActiveRecord::TestCase + fixtures :posts, :comments + + class FakeKlass < Struct.new(:table_name) + end + + def test_construction + relation = nil + assert_nothing_raised do + relation = Relation.new :a, :b + end + assert_equal :a, relation.klass + assert_equal :b, relation.table + assert !relation.loaded, 'relation is not loaded' + end + + def test_single_values + assert_equal [:limit, :offset, :lock, :readonly, :create_with, :from].map(&:to_s).sort, + Relation::SINGLE_VALUE_METHODS.map(&:to_s).sort + end + + def test_initialize_single_values + relation = Relation.new :a, :b + Relation::SINGLE_VALUE_METHODS.each do |method| + assert_nil relation.send("#{method}_value"), method.to_s + end + end + + def test_association_methods + assert_equal [:includes, :eager_load, :preload].map(&:to_s).sort, + Relation::ASSOCIATION_METHODS.map(&:to_s).sort + end + + def test_initialize_association_methods + relation = Relation.new :a, :b + Relation::ASSOCIATION_METHODS.each do |method| + assert_equal [], relation.send("#{method}_values"), method.to_s + end + end + + def test_multi_value_methods + assert_equal [:select, :group, :order, :joins, :where, :having, :bind].map(&:to_s).sort, + Relation::MULTI_VALUE_METHODS.map(&:to_s).sort + end + + def test_multi_value_initialize + relation = Relation.new :a, :b + Relation::MULTI_VALUE_METHODS.each do |method| + assert_equal [], relation.send("#{method}_values"), method.to_s + end + end + + def test_extensions + relation = Relation.new :a, :b + assert_equal [], relation.extensions + end + + def test_empty_where_values_hash + relation = Relation.new :a, :b + assert_equal({}, relation.where_values_hash) + + relation.where_values << :hello + assert_equal({}, relation.where_values_hash) + end + + def test_has_values + relation = Relation.new Post, Post.arel_table + relation.where_values << relation.table[:id].eq(10) + assert_equal({:id => 10}, relation.where_values_hash) + end + + def test_values_wrong_table + relation = Relation.new Post, Post.arel_table + relation.where_values << Comment.arel_table[:id].eq(10) + assert_equal({}, relation.where_values_hash) + end + + def test_tree_is_not_traversed + relation = Relation.new Post, Post.arel_table + left = relation.table[:id].eq(10) + right = relation.table[:id].eq(10) + combine = left.and right + relation.where_values << combine + assert_equal({}, relation.where_values_hash) + end + + def test_table_name_delegates_to_klass + relation = Relation.new FakeKlass.new('foo'), :b + assert_equal 'foo', relation.table_name + end + + def test_scope_for_create + relation = Relation.new :a, :b + assert_equal({}, relation.scope_for_create) + end + + def test_create_with_value + relation = Relation.new Post, Post.arel_table + hash = { :hello => 'world' } + relation.create_with_value = hash + assert_equal hash, relation.scope_for_create + end + + def test_create_with_value_with_wheres + relation = Relation.new Post, Post.arel_table + relation.where_values << relation.table[:id].eq(10) + relation.create_with_value = {:hello => 'world'} + assert_equal({:hello => 'world', :id => 10}, relation.scope_for_create) + end + + # FIXME: is this really wanted or expected behavior? + def test_scope_for_create_is_cached + relation = Relation.new Post, Post.arel_table + assert_equal({}, relation.scope_for_create) + + relation.where_values << relation.table[:id].eq(10) + assert_equal({}, relation.scope_for_create) + + relation.create_with_value = {:hello => 'world'} + assert_equal({}, relation.scope_for_create) + end + + def test_empty_eager_loading? + relation = Relation.new :a, :b + assert !relation.eager_loading? + end + + def test_eager_load_values + relation = Relation.new :a, :b + relation.eager_load_values << :b + assert relation.eager_loading? + end + end +end |