1 files changed, 43 insertions, 0 deletions
diff --git a/activesupport/test/core_ext/object/to_query_test.rb b/activesupport/test/core_ext/object/to_query_test.rb
new file mode 100644
index 0000000000..0fb15be654
--- /dev/null
+++ b/activesupport/test/core_ext/object/to_query_test.rb
@@ -0,0 +1,43 @@
+require 'abstract_unit'
+require 'active_support/core_ext/object/to_query'
+
+class ToQueryTest < Test::Unit::TestCase
+  def test_simple_conversion
+    assert_query_equal 'a=10', :a => 10
+  end
+
+  def test_cgi_escaping
+    assert_query_equal 'a%3Ab=c+d', 'a:b' => 'c d'
+  end
+
+  def test_nil_parameter_value
+    empty = Object.new
+    def empty.to_param; nil end
+    assert_query_equal 'a=', 'a' => empty
+  end
+
+  def test_nested_conversion
+    assert_query_equal 'person%5Blogin%5D=seckar&person%5Bname%5D=Nicholas',
+      :person => {:name => 'Nicholas', :login => 'seckar'}
+  end
+
+  def test_multiple_nested
+    assert_query_equal 'account%5Bperson%5D%5Bid%5D=20&person%5Bid%5D=10',
+      :person => {:id => 10}, :account => {:person => {:id => 20}}
+  end
+
+  def test_array_values
+    assert_query_equal 'person%5Bid%5D%5B%5D=10&person%5Bid%5D%5B%5D=20',
+      :person => {:id => [10, 20]}
+  end
+
+  def test_array_values_are_not_sorted
+    assert_query_equal 'person%5Bid%5D%5B%5D=20&person%5Bid%5D%5B%5D=10',
+      :person => {:id => [20, 10]}
+  end
+
+  private
+    def assert_query_equal(expected, actual, message = nil)
+      assert_equal expected.split('&'), actual.to_query.split('&')
+    end
+end