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require File.join(File.dirname(__FILE__), '..', '..', '..', '..', '..', 'spec_helper')
module Arel
describe Array do
before do
@relation = Array.new([
[1, 'duck' ],
[2, 'duck' ],
[3, 'goose']
], [:id, :name])
end
describe '#attributes' do
it 'manufactures attributes corresponding to the names given on construction' do
@relation.attributes.should == [
Attribute.new(@relation, :id),
Attribute.new(@relation, :name)
]
end
end
describe '#call' do
it "manufactures an array of hashes of attributes to values" do
@relation.call.should == [
Row.new(@relation, [1, 'duck']),
Row.new(@relation, [2, 'duck']),
Row.new(@relation, [3, 'goose'])
]
end
describe 'where' do
xit 'filters the relation with the provided predicate' do
@relation \
.where(@relation[:id].lt(3)) \
.let do |relation|
relation.call.should == [
Row.new(relation, [1, 'duck']),
Row.new(relation, [2, 'duck']),
]
end
end
it 'filters the relation with the provided predicate' do
@relation \
.where(@relation[:id].gt(1)) \
.where(@relation[:id].lt(3)) \
.let do |relation|
relation.call.should == [
Row.new(relation, [2, 'duck'])
]
end
end
end
describe 'group' do
xit 'sorts the relation with the provided ordering' do
end
end
describe 'order' do
it 'sorts the relation with the provided ordering' do
@relation \
.order(@relation[:id].desc) \
.let do |relation|
relation.call.should == [
Row.new(relation, [3, 'goose']),
Row.new(relation, [2, 'duck']),
Row.new(relation, [1, 'duck'])
]
end
end
end
describe 'project' do
it 'projects' do
@relation \
.project(@relation[:id]) \
.let do |relation|
relation.call.should == [
Row.new(relation, [1]),
Row.new(relation, [2]),
Row.new(relation, [3])
]
end
end
end
describe 'skip' do
it 'slices' do
@relation \
.skip(1) \
.let do |relation|
relation.call.should == [
Row.new(relation, [2, 'duck']),
Row.new(relation, [3, 'goose']),
]
end
end
end
describe 'take' do
it 'dices' do
@relation \
.take(2) \
.let do |relation|
relation.call.should == [
Row.new(relation, [1, 'duck']),
Row.new(relation, [2, 'duck']),
]
end
end
end
describe 'join' do
end
end
end
end
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