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require_relative '../../spec_helper'
require_relative 'fixtures/common'
describe "NoMethodError.new" do
it "allows passing method args" do
NoMethodError.new("msg", "name", ["args"]).args.should == ["args"]
end
it "does not require a name" do
NoMethodError.new("msg").message.should == "msg"
end
ruby_version_is "2.6" do
it "accepts a :receiver keyword argument" do
receiver = mock("receiver")
error = NoMethodError.new("msg", :name, receiver: receiver)
error.receiver.should == receiver
error.name.should == :name
end
end
end
describe "NoMethodError#args" do
it "returns an empty array if the caller method had no arguments" do
begin
NoMethodErrorSpecs::NoMethodErrorB.new.foo
rescue Exception => e
e.args.should == []
end
end
it "returns an array with the same elements as passed to the method" do
begin
a = NoMethodErrorSpecs::NoMethodErrorA.new
NoMethodErrorSpecs::NoMethodErrorB.new.foo(1,a)
rescue Exception => e
e.args.should == [1,a]
e.args[1].should equal a
end
end
end
describe "NoMethodError#message" do
it "for an undefined method match /undefined method/" do
begin
NoMethodErrorSpecs::NoMethodErrorD.new.foo
rescue Exception => e
e.should be_kind_of(NoMethodError)
end
end
it "for an protected method match /protected method/" do
begin
NoMethodErrorSpecs::NoMethodErrorC.new.a_protected_method
rescue Exception => e
e.should be_kind_of(NoMethodError)
end
end
it "for private method match /private method/" do
begin
NoMethodErrorSpecs::NoMethodErrorC.new.a_private_method
rescue Exception => e
e.should be_kind_of(NoMethodError)
e.message.match(/private method/).should_not == nil
end
end
it "calls receiver.inspect only when calling Exception#message" do
ScratchPad.record []
test_class = Class.new do
def inspect
ScratchPad << :inspect_called
"<inspect>"
end
end
instance = test_class.new
begin
instance.bar
rescue Exception => e
e.name.should == :bar
ScratchPad.recorded.should == []
e.message.should =~ /undefined method.+\bbar\b/
ScratchPad.recorded.should == [:inspect_called]
end
end
it "fallbacks to a simpler representation of the receiver when receiver.inspect raises an exception" do
test_class = Class.new do
def inspect
raise NoMethodErrorSpecs::InstanceException
end
end
instance = test_class.new
begin
instance.bar
rescue Exception => e
e.name.should == :bar
message = e.message
message.should =~ /undefined method.+\bbar\b/
message.should include test_class.inspect
end
end
end
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