Thanks, Justin.
I have the part object mocked up before each spec runs.
------- Extract begins -----------------
let(:part){
mock_model('Part').as_null_object
}
before do
Part.stub(:new).and_return(part)
end
------- Extract ends -----------------
With that in mind, I just made changes to my spec as below:
------- Extract begins -----------------
it 'saves updates to an existing part object successfully' do
Part.should_receive(:find).with(1).and_return(part)
Part.should_receive(:update).with( 'title' =>
'Grimspeed' ).and_return(part)
put :update, :id => 1, :part => { 'title' => 'Grimspeed' }
end
------- Extract ends -----------------
When I run the 'rake spec:controllers', I get the following error:
------- Error extract begins -----------------
1) PartsController saves updates to an existing part object
successfully
Failure/Error: Part.should_receive(:update).with( 'title' =>
'Brake pads' ).and_return(part)
(<Part(id: integer, title: string, description: text,
created_by: string, updated_by: string, created_at: datetime,
updated_at: datetime) (class)>).update({"title"=>"Brake pads"})
expected: 1 time
received: 0 times
# ./spec/controllers/parts_controller_spec.rb:53
------- Error extract ends -----------------
I then put in Justin's change with the use of double() as follows:
------- Source code extract begins -----------------
it 'saves updates to an existing part object successfully' do
part = double(part)
Part.should_receive(:find).with(1).and_return(part)
Part.should_receive(:update).with( 'title' => 'Brake
pads' ).and_return(part)
put :update, :id => 1, :part => { 'title' => 'Brake pads' }
end
------- Source code extract ends -----------------
and I got the following error:
------- Error extract begins -----------------
1) PartsController saves updates to an existing part object
successfully
Failure/Error: put :update, :id => 1, :part => { 'title' =>
'Brake pads' }
Double received unexpected message :update_attributes with
({"title"=>"Brake pads"})
# ./app/controllers/parts_controller.rb:63:in `update'
# ./app/controllers/parts_controller.rb:62:in `update'
# ./spec/controllers/parts_controller_spec.rb:55
------- Error extract ends -----------------
I have also looked at a few other posts in the group but can't figure
out what's causing
update_attributes not to be recognised :(
-
http://groups.google.com/group/rspec/browse_thread/thread/9bfb4a348799c30f/30de6b7953222b5a?lnk=gst&q=update_attributes#30de6b7953222b5a
-
http://groups.google.com/group/rspec/browse_thread/thread/fe4985e2b8be16da/f590a9e0510ff4fb?lnk=gst&q=update_attributes#f590a9e0510ff4fb
My update message in the parts controller reads as below:
------- Source code extract starts -----------------
def update
@part = Part.find(params[:id])
respond_to do |format|
if @part.update_attributes(params[:part])
format.html { redirect_to(@part, :notice => 'Part was
successfully updated.') }
format.xml { head :ok }
else
format.html { render :action => "edit" }
format.xml { render :xml => @part.errors, :status
=> :unprocessable_entity }
end
end
end
------- Source code extract ends -----------------
I have used this bit of code without problems in the past.
update_attributes, like save, is part of the ActiveRecord api (http://
ar.rubyonrails.org/).
Well, given that controllers are not to know of the implementation of
messages,
I have then stubbed the message to the update_attributes method in the
parts controller.
------- Source code extract starts -----------------
context 'saves updates to an existing part object successfully' do
before do
part =
double('part').stub(:update_attributes).and_return(true)
end
it 'does its job in saving the update' do
Part.should_receive(:find).with(1).and_return(part)
Part.should_receive(:update).with('title' => 'Brake
pads').and_return(part)
put :update, :id => 1, :part => {'title' => 'Brake pads'}
end
end
------- Source code extract ends -----------------
Alas, I got the error below :(
------- Error extract starts -----------------
1) PartsController saves updates to an existing part object
successfully does its job in saving the update
Failure/Error: Part.should_receive(:update).with('title' =>
'Brake pads').and_return(part)
(<Part(id: integer, title: string, description: text,
created_by: string, updated_by: string, created_at: datetime,
updated_at: datetime) (class)>).update({"title"=>"Brake pads"})
expected: 1 time
received: 0 times
# ./spec/controllers/parts_controller_spec.rb:61
------- Error extract ends -----------------
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