require 'spec_helper'

describe Less::Parser do

  cwd = Pathname(__FILE__).dirname

  describe "simple usage" do
    it "parse less into a tree" do
      root = subject.parse(".class {width: 1+1}")
      root.to_css.gsub(/\n/,'').should eql ".class {  width: 2;}"
    end

    it "accepts options when assembling the parse tree" do
      subject.parse(".class {width: 1+1}").to_css(:compress => true).strip.should eql ".class{width:2;}"
    end
  end

  it "throws a ParseError if the lesscss is bogus" do
    expect {subject.parse('{^)')}.should raise_error(Less::ParseError)
  end

  it "passes exceptions from the less compiler" do
    expect {subject.parse('body { color: @a; }').to_css}.should raise_error(Less::ParseError, /variable @a is undefined/)
  end

  describe "when configured with multiple load paths" do
    subject {Less::Parser.new :paths => [cwd.join('one'), cwd.join('two'), cwd.join('faulty')]}

    it "will load files from both paths" do
      subject.parse('@import "one.less";').to_css.gsub(/\n/,'').strip.should eql ".one {  width: 1;}"
      subject.parse('@import "two.less";').to_css.gsub(/\n/,'').strip.should eql ".two {  width: 1;}"
    end

    it "passes exceptions from less imported less files" do
      expect {subject.parse('@import "faulty.less";').to_css}.should raise_error(Less::ParseError, /variable @a is undefined/)
    end

  end

  describe "when load paths are specified in as default options" do
    before do
      Less.paths << cwd.join('one')
      Less.paths << cwd.join('two')
      @parser = Less::Parser.new
    end
    after do
      Less.paths.clear
    end

    it "will load files from default load paths" do
      @parser.parse('@import "one.less";').to_css.gsub(/\n/,'').strip.should eql ".one {  width: 1;}"
      @parser.parse('@import "two.less";').to_css.gsub(/\n/,'').strip.should eql ".two {  width: 1;}"
    end
  end

end