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Contents
require 'spec_helper'
RSpec::Matchers.define :be_attributes_as do |list|
match do |other|
other.each_with_index.map do |item, idx|
item.relation.name == list[idx][0] && item.name.to_s == list[idx][1]
end.all?
end
end
RSpec.describe 'Relation', type: :helper do
context 'on resolving columns' do
subject { Post.unscoped.method(:resolve_column) }
def attribute(relation, name)
result = Arel::Attributes::Attribute.new
result.relation = relation
result.name = name
result
end
it 'asserts sql literals' do
check = ['name', 'other.title']
expect(subject.call(check)).to eql(check)
end
it 'asserts attribute symbols' do
check = [:title, :content]
result = [['posts', 'title'], ['posts', 'content']]
expect(subject.call(check)).to be_attributes_as(result)
end
it 'asserts direct hash relations' do
check = [:title, author: :name]
result = [['posts', 'title'], ['authors', 'name']]
expect(subject.call(check)).to be_attributes_as(result)
end
it 'asserts multiple values on hash definition' do
check = [author: [:name, :age]]
result = [['authors', 'name'], ['authors', 'age']]
expect(subject.call(check)).to be_attributes_as(result)
end
it 'raises on relation not present' do
check = [tags: :name]
expect{ subject.call(check) }.to raise_error(ArgumentError, /Relation for/)
end
it 'raises on third level access' do
check = [author: [comments: :body]]
expect{ subject.call(check) }.to raise_error(ArgumentError, /on third level/)
end
end
end
Version data entries
28 entries across 28 versions & 1 rubygems