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Contents
require 'rspec'
module Finitio
describe System, "fetch" do
let(:system){ System.new }
before do
system.add_type(intType)
end
subject{ system.fetch(name) }
context 'with an existing type name' do
let(:name){ "intType" }
it 'should return the type' do
expect(subject).to eq(intType)
end
end
context 'with a non existing type name and no block' do
let(:name){ "noSuchOne" }
it 'should raise an error' do
expect{
subject
}.to raise_error(KeyError, /noSuchOne/)
end
end
context 'with a non existing type name and a block' do
subject{
system.fetch("noSuchOne"){ "bar" }
}
it 'should yield the block' do
expect(subject).to eq("bar")
end
end
context 'with an imported type' do
subject{
s = System.new
s.add_import(system)
s.fetch("intType", imports, &fallback)
}
context "specifying the use of imports" do
let(:imports) { true }
let(:fallback){ ->(name){ raise } }
it 'should return the type' do
expect(subject).to eq(intType)
end
end
context "specifying not to use the imports" do
let(:imports) { false }
let(:fallback){ ->(name){ "bar" } }
it 'should yield the fallback block' do
expect(subject).to eq("bar")
end
end
context "specifying not to use the imports and no fallbak" do
let(:imports) { false }
let(:fallback){ nil }
it 'should yield the fallback block' do
expect {
subject
}.to raise_error
end
end
end
end
end
Version data entries
14 entries across 14 versions & 1 rubygems