RSpec Code Examples

 

 

Mocker
should be able to call mock()
should fail when expected message not received 
Mock "poke me" expected :poke with (any args) once, but received it 0 times
examples/failing/mocking_example.rb:11 
./spec/spec/runner/formatter/text_mate_formatter_spec.rb:49 
./spec/spec/runner/formatter/text_mate_formatter_spec.rb:45 :in `chdir'
./spec/spec/runner/formatter/text_mate_formatter_spec.rb:45 
9  it "should fail when expected message not received" do
10    mock = mock("poke me")
11    mock.should_receive(:poke)
12  end
13
should fail when messages are received out of order 
Mock "one two three" received :three out of order
examples/failing/mocking_example.rb:20 
./spec/spec/runner/formatter/text_mate_formatter_spec.rb:49 
./spec/spec/runner/formatter/text_mate_formatter_spec.rb:45 :in `chdir'
./spec/spec/runner/formatter/text_mate_formatter_spec.rb:45 
18    mock.should_receive(:three).ordered
19    mock.one
20    mock.three
21    mock.two
22  end
should get yelled at when sending unexpected messages 
Mock "don't talk to me" expected :any_message_at_all with (no args) 0 times, but received it once
examples/failing/mocking_example.rb:27 
./spec/spec/runner/formatter/text_mate_formatter_spec.rb:49 
./spec/spec/runner/formatter/text_mate_formatter_spec.rb:45 :in `chdir'
./spec/spec/runner/formatter/text_mate_formatter_spec.rb:45 
25    mock = mock("don't talk to me")
26    mock.should_not_receive(:any_message_at_all)
27    mock.any_message_at_all
28  end
has a bug we need to fix 
Expected pending 'here is the bug' to fail. No Error was raised.
examples/failing/mocking_example.rb:31 
./spec/spec/runner/formatter/text_mate_formatter_spec.rb:49 
./spec/spec/runner/formatter/text_mate_formatter_spec.rb:45 :in `chdir'
./spec/spec/runner/formatter/text_mate_formatter_spec.rb:45 
29
30  it "has a bug we need to fix" do
31    pending "here is the bug" do
32      # Actually, no. It's fixed. This will fail because it passes :-)
33      mock = mock("Bug")
Running specs with --diff
should print diff of different strings 
expected: "RSpec is a\nbehaviour driven development\nframework for Ruby\n",
     got: "RSpec is a\nbehavior driven development\nframework for Ruby\n" (using ==)

 Diff:
@@ -1,4 +1,4 @@
 RSpec is a
-behaviour driven development
+behavior driven development
 framework for Ruby

examples/failing/diffing_spec.rb:13 
./spec/spec/runner/formatter/text_mate_formatter_spec.rb:49 
./spec/spec/runner/formatter/text_mate_formatter_spec.rb:45 :in `chdir'
./spec/spec/runner/formatter/text_mate_formatter_spec.rb:45 
11framework for Ruby
12EOF
13    usa.should == uk
14  end
should print diff of different objects' pretty representation 
expected <Animal
name=bob,
species=tortoise
>

     got <Animal
name=bob,
species=giraffe
>


(compared using eql?)

examples/failing/diffing_spec.rb:34 
./spec/spec/runner/formatter/text_mate_formatter_spec.rb:49 
./spec/spec/runner/formatter/text_mate_formatter_spec.rb:45 :in `chdir'
./spec/spec/runner/formatter/text_mate_formatter_spec.rb:45 
32    expected = Animal.new "bob", "giraffe"
33    actual   = Animal.new "bob", "tortoise"
34    expected.should eql(actual)
35  end
36end
A consumer of a stub
should be able to stub methods on any Object
A stubbed method on a class
should return the stubbed value
should revert to the original method after each spec
can stub! and mock the same message
A mock
can stub!
can stub! and mock
can stub! and mock the same message
pending example (using pending method)
should be reported as "PENDING: for some reason" (PENDING: for some reason)
pending example (with no block)
should be reported as "PENDING: Not Yet Implemented" (PENDING: Not Yet Implemented)
pending example (with block for pending)
should have a failing block, passed to pending, reported as "PENDING: for some reason" (PENDING: for some reason)