require 'spec_helper'
describe PDFKit do
context "initialization" do
it "should accept HTML as the source" do
pdfkit = PDFKit.new('Oh Hai
')
pdfkit.source.should be_html
pdfkit.source.to_s.should == 'Oh Hai
'
end
it "should accept a URL as the source" do
pdfkit = PDFKit.new('http://google.com')
pdfkit.source.should be_url
pdfkit.source.to_s.should == 'http://google.com'
end
it "should accept a File as the source" do
file_path = File.join(SPEC_ROOT,'fixtures','example.html')
pdfkit = PDFKit.new(File.new(file_path))
pdfkit.source.should be_file
pdfkit.source.to_s.should == file_path
end
it "should parse the options into a cmd line friedly format" do
pdfkit = PDFKit.new('html', :page_size => 'Letter')
pdfkit.options.should have_key('--page-size')
end
it "should provide default options" do
pdfkit = PDFKit.new('Oh Hai
')
['--disable-smart-shrinking', '--margin-top', '--margin-right', '--margin-bottom', '--margin-left'].each do |option|
pdfkit.options.should have_key(option)
end
end
it "should not have any stylesheedt by default" do
pdfkit = PDFKit.new('Oh Hai
')
pdfkit.stylesheets.should be_empty
end
end
context "command" do
it "should contstruct the correct command" do
pdfkit = PDFKit.new('html', :page_size => 'Letter', :toc_l1_font_size => 12)
pdfkit.command.should include('wkhtmltopdf')
pdfkit.command.should include('--page-size Letter')
pdfkit.command.should include('--toc-l1-font-size 12')
end
it "will not include default options it is told to omit" do
pdfkit = PDFKit.new('html')
pdfkit.command.should include('--disable-smart-shrinking')
pdfkit = PDFKit.new('html', :disable_smart_shrinking => false)
pdfkit.command.should_not include('--disable-smart-shrinking')
end
it "should encapsulate string arguments in quotes" do
pdfkit = PDFKit.new('html', :header_center => "foo [page]")
pdfkit.command.should include('--header-center "foo [page]"')
end
it "read the source from stdin if it is html" do
pdfkit = PDFKit.new('html')
pdfkit.command.should match(/ - -$/)
end
it "specify the URL to the source if it is a url" do
pdfkit = PDFKit.new('http://google.com')
pdfkit.command.should match(/ http:\/\/google\.com -$/)
end
it "should specify the path to the source if it is a file" do
file_path = File.join(SPEC_ROOT,'fixtures','example.html')
pdfkit = PDFKit.new(File.new(file_path))
pdfkit.command.should match(/ #{file_path} -$/)
end
end
context "#to_pdf" do
it "should generate a PDF of the HTML" do
pdfkit = PDFKit.new('html', :page_size => 'Letter')
pdf = pdfkit.to_pdf
pdf[0...4].should == "%PDF" # PDF Signature at beginning of file
end
it "should have the stylesheet added to the head if it has one" do
pdfkit = PDFKit.new("Hai!")
css = File.join(SPEC_ROOT,'fixtures','example.css')
pdfkit.stylesheets << css
pdfkit.to_pdf
pdfkit.source.to_s.should include("")
end
it "should prepend style tags if the HTML doesn't have a head tag" do
pdfkit = PDFKit.new("Hai!")
css = File.join(SPEC_ROOT,'fixtures','example.css')
pdfkit.stylesheets << css
pdfkit.to_pdf
pdfkit.source.to_s.should include("")
end
it "should throw an error if the source is not html and stylesheets have been added" do
pdfkit = PDFKit.new('http://google.com')
css = File.join(SPEC_ROOT,'fixtures','example.css')
pdfkit.stylesheets << css
lambda { pdfkit.to_pdf }.should raise_error(PDFKit::ImproperSourceError)
end
end
context "#to_file" do
before do
@file_path = File.join(SPEC_ROOT,'fixtures','test.pdf')
File.delete(@file_path) if File.exist?(@file_path)
end
after do
File.delete(@file_path)
end
it "should create a file with the PDF as content" do
pdfkit = PDFKit.new('html', :page_size => 'Letter')
pdfkit.expects(:to_pdf).returns('PDF')
file = pdfkit.to_file(@file_path)
file.should be_instance_of(File)
File.read(file.path).should == 'PDF'
end
end
end