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# coding: utf-8
require "spec_helper"
describe "CSSminify" do
context "application" do
it "minifies CSS" do
source = File.open(File.expand_path("../sample.css", __FILE__), "r:UTF-8").read
minified = CSSminify.compress(source)
minified.length.should < source.length
lambda {
CSSminify.compress(minified)
}.should_not raise_error
end
it "honors the specified maximum line length" do
source = <<-EOS
.classname1 {
border: none;
background: none;
outline: none;
}
.classname2 {
border: none;
background: none;
outline: none;
}
EOS
minified = CSSminify.compress(source, 30)
minified.split("\n").length.should eq(2)
minified.should eq(".classname1{border:0;background:0;outline:0}\n.classname2{border:0;background:0;outline:0}")
end
it "handles strings as input format" do
lambda {
CSSminify.compress(File.open(File.expand_path("../sample.css", __FILE__), "r:UTF-8").read).should_not be_empty
}.should_not raise_error
end
it "handles files as input format" do
lambda {
CSSminify.compress(File.open(File.expand_path("../sample.css", __FILE__), "r:UTF-8")).should_not be_empty
}.should_not raise_error
end
it "works as both class and class instance" do
lambda {
CSSminify.compress(File.open(File.expand_path("../sample.css", __FILE__), "r:UTF-8").read).should_not be_empty
CSSminify.new.compress(File.open(File.expand_path("../sample.css", __FILE__), "r:UTF-8").read).should_not be_empty
}.should_not raise_error
end
end
context "compression" do
it "removes comments and white space" do
source = <<-EOS
/*****
Multi-line comment
before a new class name
*****/
.classname {
/* comment in declaration block */
font-weight: normal;
}
EOS
CSSminify.compress(source).should eq('.classname{font-weight:normal}')
end
it "preserves special comments" do
source = <<-EOS
/*!
(c) Very Important Comment
*/
.classname {
/* comment in declaration block */
font-weight: normal;
}
EOS
result = <<-EOS
/*!
(c) Very Important Comment
*/.classname{font-weight:normal}
EOS
(CSSminify.compress(source) + "\n").should eq(result)
end
it "removes last semi-colon in a block" do
source = <<-EOS
.classname {
border-top: 1px;
border-bottom: 2px;
}
EOS
CSSminify.compress(source).should eq('.classname{border-top:1px;border-bottom:2px}')
end
it "removes extra semi-colons" do
source = <<-EOS
.classname {
border-top: 1px; ;
border-bottom: 2px;;;
}
EOS
CSSminify.compress(source).should eq('.classname{border-top:1px;border-bottom:2px}')
end
it "removes empty declarations" do
source = <<-EOS
.empty { ;}
.nonempty {border: 0;}
EOS
CSSminify.compress(source).should eq('.nonempty{border:0}')
end
it "simplifies zero values" do
source = <<-EOS
a {
margin: 0px 0pt 0em 0%;
background-position: 0 0ex;
padding: 0in 0cm 0mm 0pc
}
EOS
CSSminify.compress(source).should eq('a{margin:0;background-position:0 0;padding:0}')
end
it "removes leading zeros from floats" do
source = <<-EOS
.classname {
margin: 0.6px 0.333pt 1.2em 8.8cm;
}
EOS
CSSminify.compress(source).should eq('.classname{margin:.6px .333pt 1.2em 8.8cm}')
end
it "simplifies color values but preserves filter properties, RGBa values and ID strings" do
source = <<-EOS
.color-me {
color: rgb(123, 123, 123);
border-color: #ffeedd;
background: none repeat scroll 0 0 rgb(255, 0,0);
}
EOS
CSSminify.compress(source).should eq('.color-me{color:#7b7b7b;border-color:#fed;background:none repeat scroll 0 0 #f00}')
source = <<-EOS
#AABBCC {
color: rgba(1, 2, 3, 4);
filter: chroma(color="#FFFFFF");
}
EOS
CSSminify.compress(source).should eq('#AABBCC{color:rgba(1,2,3,4);filter:chroma(color="#FFFFFF")}')
end
it "only keeps the first charset declaration" do
source = <<-EOS
@charset "utf-8";
#foo {
border-width: 1px;
}
/* second css, merged */
@charset "another one";
#bar {
border-width: 10px;
}
EOS
CSSminify.compress(source).should eq('@charset "utf-8";#foo{border-width:1px}#bar{border-width:10px}')
end
it "simplifies the IE opacity filter syntax" do
source = <<-EOS
.classname {
-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=80)"; /* IE 8 */
filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=80); /* IE < 8 */
}
EOS
CSSminify.compress(source).should eq('.classname{-ms-filter:"alpha(opacity=80)";filter:alpha(opacity=80)}')
end
it "replaces 'none' values with 0 where allowed" do
source = <<-EOS
.classname {
border: none;
background: none;
outline: none;
}
EOS
CSSminify.compress(source).should eq('.classname{border:0;background:0;outline:0}')
end
it "tolerates underscore/star hacks" do
source = <<-EOS
#element {
width: 1px;
*width: 2px;
_width: 3px;
}
EOS
CSSminify.compress(source).should eq('#element{width:1px;*width:2px;_width:3px}')
end
it "tolerates child selector hacks" do
source = <<-EOS
html >/**/ body p {
color: blue;
}
EOS
CSSminify.compress(source).should eq('html>/**/body p{color:blue}')
end
it "tolerates IE5/Mac hacks" do
source = <<-EOS
/* Ignore the next rule in IE mac \\*/
.selector {
color: khaki;
}
/* Stop ignoring in IE mac */
EOS
CSSminify.compress(source).should eq('/*\*/.selector{color:khaki}/**/')
end
it "tolerates box model hacks" do
source = <<-EOS
#elem {
width: 100px; /* IE */
voice-family: "\\"}\\"";
voice-family:inherit;
width: 200px; /* others */
}
html>body #elem {
width: 200px; /* others */
}
EOS
CSSminify.compress(source).should eq('#elem{width:100px;voice-family:"\"}\"";voice-family:inherit;width:200px}html>body #elem{width:200px}')
end
it "should pass all the original tests included in the YUI compressor package" do
puts "Now running original YUI compressor test files:"
files = Dir.glob(File.join(File.dirname(__FILE__), 'tests', '*.css'))
for file in files do
print " -- testing #{file} ..."
CSSminify.compress(File.read(file)).chomp.strip.should eq(File.read(file + '.min').chomp.strip)
print "successful\n"
end
end
end
end
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