diff options
author | Lin Jen-Shin <godfat@godfat.org> | 2018-06-04 22:54:50 +0800 |
---|---|---|
committer | Lin Jen-Shin <godfat@godfat.org> | 2018-06-05 13:40:52 +0800 |
commit | f71fc9328c42bb67c0ad209dd6503de57fa2bcf8 (patch) | |
tree | 2df43a56a13bffe1b484c1135d8e4af8387f46f9 /spec/lib/gitlab/utils | |
parent | 9c2961947826442e780285cb551583b09cf6dae9 (diff) | |
download | gitlab-ce-f71fc9328c42bb67c0ad209dd6503de57fa2bcf8.tar.gz |
Also verify if extending would override a class methodoverride-consider-extend
Since extending a class means including on the singleton class of the
class, this should now complain this:
``` ruby
module M
extend Gitlab::Utils::Override
override :f
def f
super.succ
end
end
class C
extend M
def self.f
0
end
end
```
It should complain because `C.f` wasn't calling `M#f`.
This should pass verification:
``` ruby
module M
extend Gitlab::Utils::Override
override :f
def f
super.succ
end
end
class B
def self.f
0
end
end
class C < B
extend M
end
```
Because `C.f` would now call `M#f`, and `M#f` does override something.
Diffstat (limited to 'spec/lib/gitlab/utils')
-rw-r--r-- | spec/lib/gitlab/utils/override_spec.rb | 170 |
1 files changed, 108 insertions, 62 deletions
diff --git a/spec/lib/gitlab/utils/override_spec.rb b/spec/lib/gitlab/utils/override_spec.rb index 7c97cee982a..fc08ebcfc6d 100644 --- a/spec/lib/gitlab/utils/override_spec.rb +++ b/spec/lib/gitlab/utils/override_spec.rb @@ -1,7 +1,13 @@ -require 'spec_helper' +require 'fast_spec_helper' describe Gitlab::Utils::Override do - let(:base) { Struct.new(:good) } + let(:base) do + Struct.new(:good) do + def self.good + 0 + end + end + end let(:derived) { Class.new(base).tap { |m| m.extend described_class } } let(:extension) { Module.new.tap { |m| m.extend described_class } } @@ -9,6 +15,14 @@ describe Gitlab::Utils::Override do let(:prepending_class) { base.tap { |m| m.prepend extension } } let(:including_class) { base.tap { |m| m.include extension } } + let(:prepending_class_methods) do + base.tap { |m| m.singleton_class.prepend extension } + end + + let(:extending_class_methods) do + base.tap { |m| m.extend extension } + end + let(:klass) { subject } def good(mod) @@ -36,7 +50,7 @@ describe Gitlab::Utils::Override do shared_examples 'checking as intended' do it 'checks ok for overriding method' do good(subject) - result = klass.new(0).good + result = instance.good expect(result).to eq(1) described_class.verify! @@ -45,7 +59,25 @@ describe Gitlab::Utils::Override do it 'raises NotImplementedError when it is not overriding anything' do expect do bad(subject) - klass.new(0).bad + instance.bad + described_class.verify! + end.to raise_error(NotImplementedError) + end + end + + shared_examples 'checking as intended, nothing was overridden' do + it 'raises NotImplementedError because it is not overriding it' do + expect do + good(subject) + instance.good + described_class.verify! + end.to raise_error(NotImplementedError) + end + + it 'raises NotImplementedError when it is not overriding anything' do + expect do + bad(subject) + instance.bad described_class.verify! end.to raise_error(NotImplementedError) end @@ -54,7 +86,7 @@ describe Gitlab::Utils::Override do shared_examples 'nothing happened' do it 'does not complain when it is overriding something' do good(subject) - result = klass.new(0).good + result = instance.good expect(result).to eq(1) described_class.verify! @@ -62,7 +94,7 @@ describe Gitlab::Utils::Override do it 'does not complain when it is not overriding anything' do bad(subject) - result = klass.new(0).bad + result = instance.bad expect(result).to eq(true) described_class.verify! @@ -75,83 +107,97 @@ describe Gitlab::Utils::Override do end describe '#override' do - context 'when STATIC_VERIFICATION is set' do - before do - stub_env('STATIC_VERIFICATION', 'true') - end + context 'when instance is klass.new(0)' do + let(:instance) { klass.new(0) } - context 'when subject is a class' do - subject { derived } + context 'when STATIC_VERIFICATION is set' do + before do + stub_env('STATIC_VERIFICATION', 'true') + end - it_behaves_like 'checking as intended' - end + context 'when subject is a class' do + subject { derived } + + it_behaves_like 'checking as intended' + end + + context 'when subject is a module, and class is prepending it' do + subject { extension } + let(:klass) { prepending_class } + + it_behaves_like 'checking as intended' + end - context 'when subject is a module, and class is prepending it' do - subject { extension } - let(:klass) { prepending_class } + context 'when subject is a module, and class is including it' do + subject { extension } + let(:klass) { including_class } - it_behaves_like 'checking as intended' + it_behaves_like 'checking as intended, nothing was overridden' + end end - context 'when subject is a module, and class is including it' do - subject { extension } - let(:klass) { including_class } + context 'when STATIC_VERIFICATION is not set' do + before do + stub_env('STATIC_VERIFICATION', nil) + end - it 'raises NotImplementedError because it is not overriding it' do - expect do - good(subject) - klass.new(0).good - described_class.verify! - end.to raise_error(NotImplementedError) + context 'when subject is a class' do + subject { derived } + + it_behaves_like 'nothing happened' end - it 'raises NotImplementedError when it is not overriding anything' do - expect do - bad(subject) - klass.new(0).bad - described_class.verify! - end.to raise_error(NotImplementedError) + context 'when subject is a module, and class is prepending it' do + subject { extension } + let(:klass) { prepending_class } + + it_behaves_like 'nothing happened' end - end - end - end - context 'when STATIC_VERIFICATION is not set' do - before do - stub_env('STATIC_VERIFICATION', nil) - end + context 'when subject is a module, and class is including it' do + subject { extension } + let(:klass) { including_class } - context 'when subject is a class' do - subject { derived } + it 'does not complain when it is overriding something' do + good(subject) + result = instance.good - it_behaves_like 'nothing happened' - end + expect(result).to eq(0) + described_class.verify! + end - context 'when subject is a module, and class is prepending it' do - subject { extension } - let(:klass) { prepending_class } + it 'does not complain when it is not overriding anything' do + bad(subject) + result = instance.bad - it_behaves_like 'nothing happened' + expect(result).to eq(true) + described_class.verify! + end + end + end end - context 'when subject is a module, and class is including it' do - subject { extension } - let(:klass) { including_class } + context 'when instance is klass' do + let(:instance) { klass } - it 'does not complain when it is overriding something' do - good(subject) - result = klass.new(0).good + context 'when STATIC_VERIFICATION is set' do + before do + stub_env('STATIC_VERIFICATION', 'true') + end - expect(result).to eq(0) - described_class.verify! - end + context 'when subject is a module, and class is prepending it' do + subject { extension } + let(:klass) { prepending_class_methods } - it 'does not complain when it is not overriding anything' do - bad(subject) - result = klass.new(0).bad + it_behaves_like 'checking as intended' + end - expect(result).to eq(true) - described_class.verify! + context 'when subject is a module, and class is extending it' do + subject { extension } + let(:klass) { extending_class_methods } + + it_behaves_like 'checking as intended, nothing was overridden' + end end end end |