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Contents
Feature: Hide Defined Constant
Use `hide_const` to remove a constant for the duration of a test.
Scenario: Hide top-level constant
Given a file named "hide_const_spec.rb" with:
"""ruby
FOO = 7
describe "hiding FOO" do
it "can hide FOO" do
hide_const("FOO")
expect { FOO }.to raise_error(NameError)
end
it "restores the hidden constant when the example completes" do
FOO.should eq(7)
end
end
"""
When I run `rspec hide_const_spec.rb`
Then the examples should all pass
Scenario: Hide nested constant
Given a file named "hide_const_spec.rb" with:
"""ruby
module MyGem
class SomeClass
FOO = 7
end
end
module MyGem
describe SomeClass do
it "hides the nested constant when it is fully qualified" do
hide_const("MyGem::SomeClass::FOO")
expect { SomeClass::FOO }.to raise_error(NameError)
end
it "restores the hidden constant when the example completes" do
MyGem::SomeClass::FOO.should eq(7)
end
end
end
"""
When I run `rspec hide_const_spec.rb`
Then the examples should all pass
Scenario: Hiding undefined constant
Given a file named "hide_const_spec.rb" with:
"""
describe "hiding UNDEFINED_CONSTANT" do
it "has no effect" do
hide_const("UNDEFINED_CONSTANT")
expect { UNDEFINED_CONSTANT }.to raise_error(NameError)
end
it "is still undefined after the example completes" do
expect { UNDEFINED_CONSTANT }.to raise_error(NameError)
end
end
"""
When I run `rspec hide_const_spec.rb`
Then the examples should all pass
Version data entries
51 entries across 51 versions & 13 rubygems