require_relative '../../spec_helper'

describe "Thread#name" do
  before :each do
    @thread = Thread.new {}
  end

  after :each do
    @thread.join
  end

  it "is nil initially" do
    @thread.name.should == nil
  end

  it "returns the thread name" do
    @thread.name = "thread_name"
    @thread.name.should == "thread_name"
  end
end

describe "Thread#name=" do
  before :each do
    @thread = Thread.new {}
  end

  after :each do
    @thread.join
  end

  it "can be set to a String" do
    @thread.name = "new thread name"
    @thread.name.should == "new thread name"
  end

  it "raises an ArgumentError if the name includes a null byte" do
    lambda {
      @thread.name = "new thread\0name"
    }.should raise_error(ArgumentError)
  end

  it "can be reset to nil" do
    @thread.name = nil
    @thread.name.should == nil
  end

  it "calls #to_str to convert name to String" do
    name = mock("Thread#name")
    name.should_receive(:to_str).and_return("a thread name")

    @thread.name = name
    @thread.name.should == "a thread name"
  end
end