1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52
|
require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../fixtures/classes', __FILE__)
ruby_version_is "1.9" do
describe "Hash.try_convert" do
it "returns the argument if it's a Hash" do
x = Hash.new
Hash.try_convert(x).should equal(x)
end
it "returns the argument if it's a kind of Hash" do
x = HashSpecs::MyHash.new
Hash.try_convert(x).should equal(x)
end
it "returns nil when the argument does not respond to #to_hash" do
Hash.try_convert(Object.new).should be_nil
end
it "sends #to_hash to the argument and returns the result if it's nil" do
obj = mock("to_hash")
obj.should_receive(:to_hash).and_return(nil)
Hash.try_convert(obj).should be_nil
end
it "sends #to_hash to the argument and returns the result if it's a Hash" do
x = Hash.new
obj = mock("to_hash")
obj.should_receive(:to_hash).and_return(x)
Hash.try_convert(obj).should equal(x)
end
it "sends #to_hash to the argument and returns the result if it's a kind of Hash" do
x = HashSpecs::MyHash.new
obj = mock("to_hash")
obj.should_receive(:to_hash).and_return(x)
Hash.try_convert(obj).should equal(x)
end
it "sends #to_hash to the argument and raises TypeError if it's not a kind of Hash" do
obj = mock("to_hash")
obj.should_receive(:to_hash).and_return(Object.new)
lambda { Hash.try_convert obj }.should raise_error(TypeError)
end
it "does not rescue exceptions raised by #to_hash" do
obj = mock("to_hash")
obj.should_receive(:to_hash).and_raise(RuntimeError)
lambda { Hash.try_convert obj }.should raise_error(RuntimeError)
end
end
end
|