[Sass] Test some unit-manipulation stuff, and the rgb function.

TODO

@@ -25,7 +25,6 @@
        http://www.w3.org/TR/REC-html40/intro/sgmltut.html#h-3.2.2
        http://www.w3.org/TR/html5/syntax.html#attributes
 ** Sass
-   Add tests for ae4f319 and 4a901ed
    [2.4] CSS superset
    [2.4] Classes are mixins
      Can refer to specific property values? Syntax?

test/sass/functions_test.rb

@@ -88,6 +88,22 @@ class SassFunctionTest < Test::Unit::TestCase
     assert_error_message("#aaaaaa is not a number for `abs'", "abs(#aaa)")
   end
 
+  def test_rgb
+    assert_equal("#123456", evaluate("rgb(18, 52, 86)"))
+    assert_equal("#beaded", evaluate("rgb(190, 173, 237)"))
+
+    assert_error_message("Color value 256 must be between 0 and 255 inclusive for `rgb'",
+      "rgb(256, 1, 1)")
+    assert_error_message("Color value 256 must be between 0 and 255 inclusive for `rgb'",
+      "rgb(1, 256, 1)")
+    assert_error_message("Color value 256 must be between 0 and 255 inclusive for `rgb'",
+      "rgb(1, 1, 256)")
+    assert_error_message("Color value 256 must be between 0 and 255 inclusive for `rgb'",
+      "rgb(1, 256, 257)")
+    assert_error_message("Color value -1 must be between 0 and 255 inclusive for `rgb'",
+      "rgb(-1, 1, 1)")
+  end
+
   private
 
   def assert_rgb_hsl(rgb, hsl)

test/sass/script_test.rb

@@ -199,6 +199,14 @@ WARN
     assert_equal "#81ff81", resolve("hsl(120, 100%, 75%) + #010001")
   end
 
+  def test_operator_unit_conversion
+    assert_equal "1.1cm", resolve("1cm + 1mm")
+    assert_equal "true", resolve("2mm < 1cm")
+    assert_equal "true", resolve("10mm == 1cm")
+    assert_equal "true", resolve("1 == 1cm")
+    assert_equal "true", resolve("1.1cm == 11mm")
+  end
+
   private
 
   def resolve(str, opts = {}, environment = env)