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RSpec.describe ModelAttribute do
before(:each) do
ModelAttribute.instance_variable_set(:@__all__, [])
end
describe ".define" do
it "adds a new instance of ModelAttribute to .all" do
expect do
ModelAttribute.define(:route, :name, :string)
end.to change { ModelAttribute.all.length }.by(1)
model_attr = ModelAttribute.all.last
expect(model_attr).to be_an_instance_of(ModelAttribute)
expect(model_attr.klass).to eq(:route)
expect(model_attr.name).to eq(:name)
expect(model_attr.data_type).to eq(:string)
end
end
describe ".classes" do
it "returns the list of classes of ModelAttributes in .all" do
ModelAttribute.define(:route, :name, :string)
ModelAttribute.define(:journey_pattern, :name, :string)
ModelAttribute.define(:time_table, :start_date, :date)
expect(ModelAttribute.classes).to match_array([
'Route',
'JourneyPattern',
'TimeTable'
])
end
end
describe ".from_code" do
it "returns a ModelAttribute from a given code" do
ModelAttribute.define(:journey_pattern, :name, :string)
expect(ModelAttribute.from_code('journey_pattern#name')).to eq(
ModelAttribute.new(:journey_pattern, :name, :string)
)
end
end
describe ".group_by_class" do
it "returns all ModelAttributes grouped by klass" do
ModelAttribute.define(:route, :name, :string)
ModelAttribute.define(:route, :published_name, :string)
ModelAttribute.define(:journey_pattern, :name, :string)
ModelAttribute.define(:vehicle_journey, :number, :integer)
expect(ModelAttribute.group_by_class).to eq({
route: [
ModelAttribute.new(:route, :name, :string),
ModelAttribute.new(:route, :published_name, :string),
],
journey_pattern: [
ModelAttribute.new(:journey_pattern, :name, :string),
],
vehicle_journey: [
ModelAttribute.new(:vehicle_journey, :number, :integer)
]
})
end
end
describe ".methods_by_class" do
it "returns all ModelAttributes for a given class" do
ModelAttribute.define(:route, :name, :string)
ModelAttribute.define(:route, :published_name, :string)
ModelAttribute.define(:route, :direction, :string)
ModelAttribute.define(:journey_pattern, :name, :string)
expect(ModelAttribute.methods_by_class(:route)).to match_array([
ModelAttribute.new(:route, :name, :string),
ModelAttribute.new(:route, :published_name, :string),
ModelAttribute.new(:route, :direction, :string)
])
end
end
describe ".methods_by_class_and_type" do
it "returns ModelAttributes of a certain class and type" do
ModelAttribute.define(:route, :name, :string)
ModelAttribute.define(:route, :checked_at, :date)
ModelAttribute.define(:journey_pattern, :name, :string)
ModelAttribute.define(:journey_pattern, :section_status, :integer)
expect(ModelAttribute.methods_by_class_and_type(:route, :string)).to match_array([
ModelAttribute.new(:route, :name, :string)
])
end
end
describe "#code" do
it "returns a string representation of the attribute" do
model_attr = ModelAttribute.new(:route, :name, :string)
expect(model_attr.code).to eq('route#name')
end
end
describe "#==" do
it "returns true when :klass, :name, and :data_type attributes match" do
route_name = ModelAttribute.new(:route, :name, :string)
other_route_name = ModelAttribute.new(:route, :name, :string)
expect(route_name == other_route_name).to be true
end
end
end
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