Project: RSpec Mocks 2.9

Publisher: RSpec

warn when expectation is set on nil

Scenarios

nil instance variable
allow
allow in one example, but not on another

Given

a file named "example_spec.rb" with:

RSpec.configure {|c| c.mock_with :rspec}
describe "something" do
  it "does something" do
    @i_do_not_exist.should_receive(:foo)
    @i_do_not_exist.foo
  end
end

When

I run rspec example_spec.rb

Then

the output should contain "An expectation of :foo was set on nil"

allow

Given

a file named "example_spec.rb" with:

RSpec.configure {|c| c.mock_with :rspec}
describe "something" do
  it "does something" do
    allow_message_expectations_on_nil
    nil.should_receive(:foo)
    nil.foo
  end
end

When

I run rspec example_spec.rb

Then

the output should not contain "An expectation"

allow in one example, but not on another

Given

a file named "example_spec.rb" with:

RSpec.configure {|c| c.mock_with :rspec}
describe "something" do
  it "does something (foo)" do
    allow_message_expectations_on_nil
    nil.should_receive(:foo)
    nil.foo
  end
  it "does something (bar)" do
    nil.should_receive(:bar)
    nil.bar
  end
end

When

I run rspec example_spec.rb

Then

the output should contain "An expectation of :bar"

And

the output should not contain "An expectation of :foo"

Last published about 7 years ago by dchelimsky.

warn when expectation is set on nil

RSpec Mocks settings