1 files changed, 98 insertions, 0 deletions
diff --git a/activerecord/test/cases/statement_cache_test.rb b/activerecord/test/cases/statement_cache_test.rb
new file mode 100644
index 0000000000..a704b861cb
--- /dev/null
+++ b/activerecord/test/cases/statement_cache_test.rb
@@ -0,0 +1,98 @@
+require 'cases/helper'
+require 'models/book'
+require 'models/liquid'
+require 'models/molecule'
+require 'models/electron'
+
+module ActiveRecord
+  class StatementCacheTest < ActiveRecord::TestCase
+    def setup
+      @connection = ActiveRecord::Base.connection
+    end
+
+    #Cache v 1.1 tests
+    def test_statement_cache
+      Book.create(name: "my book")
+      Book.create(name: "my other book")
+
+      cache = StatementCache.create(Book.connection) do |params|
+        Book.where(:name => params.bind)
+      end
+
+      b = cache.execute([ "my book" ], Book, Book.connection)
+      assert_equal "my book", b[0].name
+      b = cache.execute([ "my other book" ], Book, Book.connection)
+      assert_equal "my other book", b[0].name
+    end
+
+
+    def test_statement_cache_id
+      b1 = Book.create(name: "my book")
+      b2 = Book.create(name: "my other book")
+
+      cache = StatementCache.create(Book.connection) do |params|
+        Book.where(id: params.bind)
+      end
+
+      b = cache.execute([ b1.id ], Book, Book.connection)
+      assert_equal b1.name, b[0].name
+      b = cache.execute([ b2.id ], Book, Book.connection)
+      assert_equal b2.name, b[0].name
+    end
+
+    def test_find_or_create_by
+      Book.create(name: "my book")
+
+      a = Book.find_or_create_by(name: "my book")
+      b = Book.find_or_create_by(name: "my other book")
+
+      assert_equal("my book", a.name)
+      assert_equal("my other book", b.name)
+    end
+
+    #End
+
+    def test_statement_cache_with_simple_statement
+      cache = ActiveRecord::StatementCache.create(Book.connection) do |params|
+        Book.where(name: "my book").where("author_id > 3")
+      end
+
+      Book.create(name: "my book", author_id: 4)
+
+      books = cache.execute([], Book, Book.connection)
+      assert_equal "my book", books[0].name
+    end
+
+    def test_statement_cache_with_complex_statement
+      cache = ActiveRecord::StatementCache.create(Book.connection) do |params|
+        Liquid.joins(:molecules => :electrons).where('molecules.name' => 'dioxane', 'electrons.name' => 'lepton')
+      end
+
+      salty = Liquid.create(name: 'salty')
+      molecule = salty.molecules.create(name: 'dioxane')
+      molecule.electrons.create(name: 'lepton')
+
+      liquids = cache.execute([], Book, Book.connection)
+      assert_equal "salty", liquids[0].name
+    end
+
+    def test_statement_cache_values_differ
+      cache = ActiveRecord::StatementCache.create(Book.connection) do |params|
+        Book.where(name: "my book")
+      end
+
+      3.times do
+        Book.create(name: "my book")
+      end
+
+      first_books = cache.execute([], Book, Book.connection)
+
+      3.times do
+        Book.create(name: "my book")
+      end
+
+      additional_books = cache.execute([], Book, Book.connection)
+      assert first_books != additional_books
+    end
+  end
+end