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require 'spec_helper'
require 'capybara/driver/webkit'
require 'mini_magick'
describe Capybara::Driver::Webkit, "rendering an image" do
before(:all) do
# Set up the tmp directory and file name
tmp_dir = File.join(PROJECT_ROOT, 'tmp')
FileUtils.mkdir_p tmp_dir
@file_name = File.join(tmp_dir, 'render-test.png')
app = lambda do |env|
body = <<-HTML
<html>
<body>
<h1>Hello World</h1>
</body>
</html>
HTML
[200,
{ 'Content-Type' => 'text/html', 'Content-Length' => body.length.to_s },
[body]]
end
@driver = Capybara::Driver::Webkit.new(app, :browser => $webkit_browser)
@driver.visit("/hello/world?success=true")
end
after(:all) { @driver.reset! }
def render(options)
FileUtils.rm_f @file_name
@driver.render @file_name, options
@image = MiniMagick::Image.open @file_name
end
context "with default options" do
before(:all){ render({}) }
it "should be a PNG" do
@image[:format].should == "PNG"
end
it "width default to 1000px (with 15px less for the scrollbar)" do
@image[:width].should be < 1001
@image[:width].should be > 1000-17
end
it "height should be at least 10px" do
@image[:height].should >= 10
end
end
context "with dimensions set larger than necessary" do
before(:all){ render(:width => 500, :height => 400) }
it "width should match the width given" do
@image[:width].should == 500
end
it "height should match the height given" do
@image[:height].should > 10
end
end
context "with dimensions set smaller than the document's default" do
before(:all){ render(:width => 50, :height => 10) }
it "width should be greater than the width given" do
@image[:width].should > 50
end
it "height should be greater than the height given" do
@image[:height].should > 10
end
end
end
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