change a test assuming Hash keeps it's order (was failing on 1.8.7)

Author: kares

test/unit/closure_compiler_test.rb

@@ -47,10 +47,10 @@ def test_jar_and_java_specifiation
   end
 
   def test_exceptions
-    assert_raises(Closure::Error) do
+    assert_raise(Closure::Error) do
       Compiler.new.compile('1++')
     end
-    assert_raises(Closure::Error) do
+    assert_raise(Closure::Error) do
       Compiler.new.compile('obj = [1 2, 3]')
     end
   end
@@ -65,7 +65,12 @@ def test_permissions
   end
 
   def test_serialize_options
-    assert_equal ["--externs",  "library1.js", "--compilation_level", "ADVANCED_OPTIMIZATIONS"], Closure::Compiler.new.send(:serialize_options, 'externs' => 'library1.js', "compilation_level" => "ADVANCED_OPTIMIZATIONS")
+    options = { 'externs' => 'library1.js', "compilation_level" => "ADVANCED_OPTIMIZATIONS" }
+    # ["--externs",  "library1.js", "--compilation_level", "ADVANCED_OPTIMIZATIONS"]
+    # although Hash in 1.8 might change the order to : 
+    # ["--compilation_level", "ADVANCED_OPTIMIZATIONS", "--externs",  "library1.js"]
+    expected_options = options.to_a.map { |arr| [ "--#{arr[0]}", arr[1] ] }.flatten
+    assert_equal expected_options, Closure::Compiler.new.send(:serialize_options, options)
   end
 
   def test_serialize_options_for_arrays