discourse/spec/services/spam_rules_enforcer_spec.rb

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require 'spec_helper'
describe SpamRulesEnforcer do
before do
SystemMessage.stubs(:create)
end
before do
SiteSetting.stubs(:flags_required_to_hide_post).returns(0) # never
SiteSetting.stubs(:num_flags_to_block_new_user).returns(2)
SiteSetting.stubs(:num_users_to_block_new_user).returns(2)
end
describe 'enforce!' do
let(:post) { Fabricate.build(:post, user: Fabricate.build(:user, trust_level: TrustLevel.levels[:newuser])) }
subject { SpamRulesEnforcer.new(post.user) }
it "does nothing if the user's trust level is higher than 'new user'" do
basic_user = Fabricate.build(:user, trust_level: TrustLevel.levels[:basic])
enforcer = SpamRulesEnforcer.new(basic_user)
enforcer.expects(:num_spam_flags_against_user).never
enforcer.expects(:num_users_who_flagged_spam_against_user).never
enforcer.expects(:punish_user).never
enforcer.enforce!
end
it 'takes no action if not enough flags by enough users have been submitted' do
subject.stubs(:block?).returns(false)
subject.expects(:punish_user).never
subject.enforce!
end
it 'delivers punishment when there are enough flags from enough users' do
subject.stubs(:block?).returns(true)
subject.expects(:punish_user)
subject.enforce!
end
end
describe 'num_spam_flags_against_user' do
before { SpamRulesEnforcer.any_instance.stubs(:punish_user) }
let(:post) { Fabricate(:post) }
let(:enforcer) { SpamRulesEnforcer.new(post.user) }
subject { enforcer.num_spam_flags_against_user }
it 'returns 0 when there are no flags' do
expect(subject).to eq(0)
end
it 'returns 0 when there is one flag that has a reason other than spam' do
Fabricate(:flag, post: post, post_action_type_id: PostActionType.types[:off_topic])
expect(subject).to eq(0)
end
it 'returns 2 when there are two flags with spam as the reason' do
2.times { Fabricate(:flag, post: post, post_action_type_id: PostActionType.types[:spam]) }
expect(subject).to eq(2)
end
it 'returns 2 when there are two spam flags, each on a different post' do
Fabricate(:flag, post: post, post_action_type_id: PostActionType.types[:spam])
Fabricate(:flag, post: Fabricate(:post, user: post.user), post_action_type_id: PostActionType.types[:spam])
expect(subject).to eq(2)
end
end
describe 'num_users_who_flagged_spam_against_user' do
before { SpamRulesEnforcer.any_instance.stubs(:punish_user) }
let(:post) { Fabricate(:post) }
let(:enforcer) { SpamRulesEnforcer.new(post.user) }
subject { enforcer.num_users_who_flagged_spam_against_user }
it 'returns 0 when there are no flags' do
expect(subject).to eq(0)
end
it 'returns 0 when there is one flag that has a reason other than spam' do
Fabricate(:flag, post: post, post_action_type_id: PostActionType.types[:off_topic])
expect(subject).to eq(0)
end
it 'returns 1 when there is one spam flag' do
Fabricate(:flag, post: post, post_action_type_id: PostActionType.types[:spam])
expect(subject).to eq(1)
end
it 'returns 2 when there are two spam flags from 2 users' do
Fabricate(:flag, post: post, post_action_type_id: PostActionType.types[:spam])
Fabricate(:flag, post: post, post_action_type_id: PostActionType.types[:spam])
expect(subject).to eq(2)
end
it 'returns 1 when there are two spam flags on two different posts from 1 user' do
flagger = Fabricate(:user)
Fabricate(:flag, post: post, user: flagger, post_action_type_id: PostActionType.types[:spam])
Fabricate(:flag, post: Fabricate(:post, user: post.user), user: flagger, post_action_type_id: PostActionType.types[:spam])
expect(subject).to eq(1)
end
end
describe 'punish_user' do
let!(:admin) { Fabricate(:admin) } # needed for SystemMessage
let(:user) { Fabricate(:user) }
let!(:post) { Fabricate(:post, user: user) }
subject { SpamRulesEnforcer.new(user) }
before do
SpamRulesEnforcer.stubs(:block?).with {|u| u.id != user.id }.returns(false)
SpamRulesEnforcer.stubs(:block?).with {|u| u.id == user.id }.returns(true)
subject.stubs(:block?).returns(true)
end
it "blocks the user" do
UserBlocker.expects(:block).with(user, nil, has_entries(message: :too_many_spam_flags))
subject.punish_user
end
it 'prevents the user from making new posts' do
subject.punish_user
expect(Guardian.new(user).can_create_post?(nil)).to be_false
end
it 'sends private message to moderators' do
moderator = Fabricate(:moderator)
GroupMessage.expects(:create).with do |group, msg_type, params|
group == Group[:moderators].name and msg_type == :user_automatically_blocked and params[:user].id == user.id
end
subject.punish_user
end
end
describe 'block?' do
context 'never been blocked' do
shared_examples "can't be blocked" do
it "returns false" do
enforcer = SpamRulesEnforcer.new(user)
enforcer.expects(:num_spam_flags_against_user).never
enforcer.expects(:num_users_who_flagged_spam_against_user).never
expect(enforcer.block?).to be_false
end
end
[:basic, :regular, :leader, :elder].each do |trust_level|
context "user has trust level #{trust_level}" do
let(:user) { Fabricate(:user, trust_level: TrustLevel.levels[trust_level]) }
include_examples "can't be blocked"
end
end
context "user is an admin" do
let(:user) { Fabricate(:admin) }
include_examples "can't be blocked"
end
context "user is a moderator" do
let(:user) { Fabricate(:moderator) }
include_examples "can't be blocked"
end
end
context 'new user' do
let(:user) { Fabricate(:user, trust_level: TrustLevel.levels[:newuser]) }
subject { SpamRulesEnforcer.new(user) }
it 'returns false if there are no spam flags' do
subject.stubs(:num_spam_flags_against_user).returns(0)
subject.stubs(:num_users_who_flagged_spam_against_user).returns(0)
expect(subject.block?).to be_false
end
it 'returns false if there are not received enough flags' do
subject.stubs(:num_spam_flags_against_user).returns(1)
subject.stubs(:num_users_who_flagged_spam_against_user).returns(2)
expect(subject.block?).to be_false
end
it 'returns false if there have not been enough users' do
subject.stubs(:num_spam_flags_against_user).returns(2)
subject.stubs(:num_users_who_flagged_spam_against_user).returns(1)
expect(subject.block?).to be_false
end
it 'returns false if num_flags_to_block_new_user is 0' do
SiteSetting.stubs(:num_flags_to_block_new_user).returns(0)
subject.stubs(:num_spam_flags_against_user).returns(100)
subject.stubs(:num_users_who_flagged_spam_against_user).returns(100)
expect(subject.block?).to be_false
end
it 'returns false if num_users_to_block_new_user is 0' do
SiteSetting.stubs(:num_users_to_block_new_user).returns(0)
subject.stubs(:num_spam_flags_against_user).returns(100)
subject.stubs(:num_users_who_flagged_spam_against_user).returns(100)
expect(subject.block?).to be_false
end
it 'returns true when there are enough flags from enough users' do
subject.stubs(:num_spam_flags_against_user).returns(2)
subject.stubs(:num_users_who_flagged_spam_against_user).returns(2)
expect(subject.block?).to be_true
end
end
context "blocked, but has higher trust level now" do
let(:user) { Fabricate(:user, blocked: true, trust_level: TrustLevel.levels[:basic]) }
subject { SpamRulesEnforcer.new(user) }
it 'returns false' do
expect(subject.block?).to be_true
end
end
end
end