```ruby
require_relative './database_integration_init'

describe "The :no_stream Expected Version Number" do
  context "Events have not yet been written to the stream" do
    stream_name = EventStore::Client::HTTP::Controls::StreamName.get 'testNoStreamVersionNoEvents'

    writer = EventStore::Client::HTTP::EventWriter.build

    event_data = EventStore::Client::HTTP::Controls::EventData::Write.example

    specify "Succeeds" do
      writer.write event_data, stream_name, expected_version: :no_stream
    end
  end

  context "Events have already been written to the stream" do
    stream_name = EventStore::Client::HTTP::Controls::StreamName.get 'testNoStreamVersionWithEvents'

    writer = EventStore::Client::HTTP::EventWriter.build

    event_data_1 = EventStore::Client::HTTP::Controls::EventData::Write.example i: 1, type: 'FirstEvent'
    writer.write event_data_1, stream_name

    event_data_2 = EventStore::Client::HTTP::Controls::EventData::Write.example i: 2, type: 'SecondEvent'

    specify "Is an error" do
      assert_raises EventStore::Client::HTTP::Request::Post::ExpectedVersionError do
        writer.write event_data_2, stream_name, expected_version: :no_stream
      end
    end
  end
end
```

Test doesn't couple to the no_stream symbol
user
```ruby
require_relative './database_integration_init'

describe "The :no_stream Expected Version Number" do
  context "Events have not yet been written to the stream" do
    stream_name = EventStore::Client::HTTP::Controls::StreamName.get 'testNoStreamVersionNoEvents'

    writer = EventStore::Client::HTTP::EventWriter.build

    event_data = EventStore::Client::HTTP::Controls::EventData::Write.example

    specify "Succeeds" do
      writer.write event_data, stream_name, expected_version: -1
    end
  end

  context "Events have already been written to the stream" do
    stream_name = EventStore::Client::HTTP::Controls::StreamName.get 'testNoStreamVersionWithEvents'

    writer = EventStore::Client::HTTP::EventWriter.build

    event_data_1 = EventStore::Client::HTTP::Controls::EventData::Write.example i: 1, type: 'FirstEvent'
    writer.write event_data_1, stream_name

    event_data_2 = EventStore::Client::HTTP::Controls::EventData::Write.example i: 2, type: 'SecondEvent'

    specify "Is an error" do
      assert_raises EventStore::Client::HTTP::Request::Post::ExpectedVersionError do
        writer.write event_data_2, stream_name, expected_version: -1
      end
    end
  end
end
```
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