spec/models/flag_spec.rb
require 'rails_helper'
describe Flag do
let(:user) { create(:user) }
let(:comment) { create(:comment) }
describe '.flag' do
it 'creates a flag when there is none' do
expect { described_class.flag(user, comment) }.to change{ described_class.count }.by(1)
expect(described_class.last.user).to eq(user)
expect(described_class.last.flaggable).to eq(comment)
end
it 'does nothing if the flag already exists' do
described_class.flag(user, comment)
expect(described_class.flag(user, comment)).to eq(false)
expect(described_class.by_user_and_flaggable(user, comment).count).to eq(1)
end
it 'increases the flag count' do
expect { described_class.flag(user, comment) }.to change{ comment.reload.flags_count }.by(1)
end
end
describe '.unflag' do
it 'raises an error if the flag does not exist' do
expect(described_class.unflag(user, comment)).to eq(false)
end
describe 'when the flag already exists' do
before { described_class.flag(user, comment) }
it 'removes an existing flag' do
expect { described_class.unflag(user, comment) }.to change{ described_class.count }.by(-1)
end
it 'decreases the flag count' do
expect { described_class.unflag(user, comment) }.to change{ comment.reload.flags_count }.by(-1)
end
end
end
describe '.flagged?' do
it 'returns false when the user has not flagged the comment' do
expect(described_class.flagged?(user, comment)).not_to be
end
it 'returns true when the user has flagged the comment' do
described_class.flag(user, comment)
expect(described_class.flagged?(user, comment)).to be
end
end
end