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require 'grpc'

describe GRPC::Core::CompletionQueue do

  describe '#new' do
    it 'is constructed successufully' do
      expect { GRPC::Core::CompletionQueue.new }.not_to raise_error
    end
  end

  describe '#next' do
    it 'can be called without failing' do
      ch = GRPC::Core::CompletionQueue.new
      expect { ch.next(3) }.not_to raise_error
    end

    it 'can be called with the time constants' do
      ch = GRPC::Core::CompletionQueue.new
      # don't use INFINITE_FUTURE, as there we have no events.
      non_blocking_consts = [:ZERO, :INFINITE_PAST]
      m = GRPC::Core::TimeConsts
      non_blocking_consts.each do |c|
        a_time = m.const_get(c)
        expect { ch.next(a_time) }.not_to raise_error
      end
    end

  end

  describe '#pluck' do
    it 'can be called without failing' do
      ch = GRPC::Core::CompletionQueue.new
      tag = Object.new
      expect { ch.pluck(tag, 3) }.not_to raise_error
    end

    it 'can be called with the time constants' do
      ch = GRPC::Core::CompletionQueue.new
      # don't use INFINITE_FUTURE, as there we have no events.
      non_blocking_consts = [:ZERO, :INFINITE_PAST]
      m = GRPC::Core::TimeConsts
      tag = Object.new
      non_blocking_consts.each do |c|
        a_time = m.const_get(c)
        expect { ch.pluck(tag, a_time) }.not_to raise_error
      end
    end

  end


end