Piling up the builtin function tests in here. Will move it to the spec when…

Piling up the builtin function tests in here. Will move it to the spec when everything is implemented.

basic.scss

+$x: rgb(255, 0, 0);
+
+div {
+  color: rgb(255, $blue: 0, $green: 255);
+  background: rgb(123, 45, 6);
+  flah: rgba(0, 0, 0, 1) + #111;
+  grah: rgba($alpha: .5, #fff);
+  blah: rgba(1,2,3,.6);
+  
+  floo: $x;
+  bloo: rgba($x, 0.5);
+  floo2: $x;
+  
+  $x: rgb(123, 45, 6);
+  
+  hoo: red($x);
+  moo: green($x);
+  poo: blue($x);
+  
+  $y: rgba(123, 45, 6, .7);
+  goo: rgba($y, .8);
+  
+  hooboo: unquote("hello");
+  hooboo: unquote(goodbye);
+  
+  boohoo: quote(floogoo);
+  boohoo: quote('I said "hello" to you.');
+  fooboo: quote('whatever and so forth');
+  
+  a: alpha($y);
+  b: opacity($y);
+  c: opacity(#abc);
+  
+  a: opacify(rgba(0,0,0,0.5), 0.1);
+  b: fade_in(rgba(0,0,17,0.8), 0.2);
+  
+  a: transparentize(rgba(0,0,0,0.5), 0.1);
+  b: fade_out(rgba(0,0,17,0.8), 0.2);
+  
+  a: percentage(100px / 50px);
+  a: abs(100px / 50px);
+  b: round(10.4px);
+  c: round(10.6px);
+  d: floor(10.4px);
+  e: floor(10.6px);
+  f: ceil(10.4px);
+  g: ceil(10.6px);
+  h: abs(-23em);
+}