Below are two methods of doing the same thing in a view spec. I have some
hidden magic to tie in to capybara which I am not showing.
To me, the advantage of the first is if there is a failure, there will be a
very nice error message that tells you exactly what is wrong. The downside of
the first is it renders the template eight times instead of just once. I can't
figure out a way around that. "render" is not available until after the "it"
is entered. before(:all) didn't work when I tried it. The first form also
creates beautiful documentation when --format documentation is used.
Part of my question is this: I've heard that with unit tests, you want one
"assert" per test. This is what the first method does.
The second method is very concise... but does not produce as nice an error
message and rather horrible output for --format documentation
I'm also curious if rigorously testing a form like this is typical. I know
that I often screw up the forms and don't figure it out until I try to exercise
them.
describe "welcome/index.html.erb" do
# first method
describe "the swinfo form" do
before(:each) do
render
end
def form
@form ||= rendered.find('form#swinfo_form')
end
def label
@label ||= form.find('label')
end
def text_box
@text_box ||= form.find('input[type="text"]')
end
it "should exist" do
form
end
it "should have an action of /swinfos" do
form[:action].should == '/swinfos'
end
it "shoule have a method of post" do
form[:method].should == 'post'
end
it "should have a label" do
label
end
describe "the label" do
it "should have text of 'swinfo'" do
label.text.should == 'swinfo'
end
it "should be for 'item'" do
label[:for].should == 'item'
end
end
it 'should have a text field' do
text_box
end
describe "the text field" do
it "should have a name of 'item'" do
text_box[:name].should == 'item'
end
end
end
# second method
it "the 'which filesets' form" do
render
within 'form#which_filesets_form' do |form|
form[:action].should == '/which_filesets'
form.should have_selector('input[type="submit"]')
form.find('label').tap do |label|
label.text.should == 'which fileset'
label[:for].should == 'path'
end
form.find('input[type="text"]').tap do |text_box|
text_box[:name].should == 'path'
end
end
end
end
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