producer-core/spec/producer/core/condition_spec.rb
2013-12-20 11:24:30 +00:00

110 lines
2.9 KiB
Ruby

require 'spec_helper'
module Producer::Core
describe Condition do
include TestsHelpers
let(:tests) { [test_ok, test_ko] }
subject(:condition) { Condition.new(tests) }
describe '.evaluate' do
let(:env) { double 'env' }
let(:block) { proc { :some_condition_code } }
it 'builds a new DSL sandbox with given env and code' do
expect(Condition::DSL)
.to receive(:new).with(env, &block).and_call_original
Condition.evaluate(env, &block)
end
it 'evaluates the DSL sandbox code' do
dsl = double('dsl').as_null_object
allow(Condition::DSL).to receive(:new) { dsl }
expect(dsl).to receive :evaluate
Condition.evaluate(env, &block)
end
it 'builds a condition with its test and block return value' do
expect(Condition)
.to receive(:new).with([], :some_condition_code)
Condition.evaluate(env, &block)
end
it 'returns the condition' do
condition = double 'task'
allow(Condition).to receive(:new) { condition }
expect(Condition.evaluate(env, &block)).to be condition
end
end
describe '#initialize' do
it 'assigns the tests' do
expect(condition.instance_eval { @tests }).to eq tests
end
it 'assigns nil as a default return value' do
expect(condition.instance_eval { @return_value }).to be nil
end
context 'when a return value is given as argument' do
let(:return_value) { :some_return_value }
subject(:condition) { Condition.new(tests, return_value) }
it 'assigns the return value' do
expect(condition.instance_eval { @return_value }).to eq return_value
end
end
end
describe '#met?' do
context 'when all tests are successful' do
let(:tests) { [test_ok, test_ok] }
it 'returns true' do
expect(condition.met?).to be true
end
end
context 'when one test is unsuccessful' do
let(:tests) { [test_ok, test_ko] }
it 'returns false' do
expect(condition.met?).to be false
end
end
context 'when there are no test' do
subject(:condition) { Condition.new([], return_value) }
context 'and return value is truthy' do
let(:return_value) { :some_truthy_value }
it 'returns true' do
expect(condition.met?).to be true
end
end
context 'and return value is falsy' do
let(:return_value) { nil }
it 'returns false' do
expect(condition.met?).to be false
end
end
end
end
describe '#!' do
[true, false].each do |b|
context "when #met? return #{b}" do
before { allow(condition).to receive(:met?) { b } }
it 'returns the negated #met?' do
expect(condition.!).to be !condition.met?
end
end
end
end
end
end