```ruby
# frozen_string_literal: true

require 'rails_helper'

RSpec.describe PostCreator do
  let(:topic) { Fabricate(:post).topic }

  before do
    SiteSetting.queue_jobs = true
    Jobs::NotifyChats.jobs.clear
  end

  describe 'when a post is created' do
    describe 'when plugin is enabled' do
      before do
        SiteSetting.chat_integration_enabled = true
      end

      it 'should schedule a chat notification job' do
        freeze_time

        post = PostCreator.new(topic.user,
          raw: 'Some post content',
          topic_id: topic.id
        ).create!

        job = Jobs::NotifyChats.jobs.last

        expect(job['at'])
          .to eq((Time.zone.now + SiteSetting.chat_integration_delay_seconds.seconds).to_f)

        expect(job['args'].first['post_id']).to eq(post.id)

      end
    end

    describe 'when plugin is not enabled' do
      before do
        SiteSetting.chat_integration_enabled = false
      end

      it 'should not schedule a job for chat notifications' do
        PostCreator.new(topic.user,
          raw: 'Some post content',
          topic_id: topic.id
        ).create!

        expect(Jobs::NotifyChats.jobs).to eq([])
      end
    end
  end
end
```

Fix heisentest caused by float operations.
user
```ruby
# frozen_string_literal: true

require 'rails_helper'

RSpec.describe PostCreator do
  let(:topic) { Fabricate(:post).topic }

  before do
    Jobs::NotifyChats.jobs.clear
  end

  describe 'when a post is created' do
    describe 'when plugin is enabled' do
      before do
        SiteSetting.chat_integration_enabled = true
      end

      it 'should schedule a chat notification job' do
        freeze_time Time.now.beginning_of_day

        post = PostCreator.new(topic.user,
          raw: 'Some post content',
          topic_id: topic.id
        ).create!

        job = Jobs::NotifyChats.jobs.last

        expect(job['at'])
          .to eq(Time.now.to_f + SiteSetting.chat_integration_delay_seconds.seconds.to_f)

        expect(job['args'].first['post_id']).to eq(post.id)

      end
    end

    describe 'when plugin is not enabled' do
      before do
        SiteSetting.chat_integration_enabled = false
      end

      it 'should not schedule a job for chat notifications' do
        PostCreator.new(topic.user,
          raw: 'Some post content',
          topic_id: topic.id
        ).create!

        expect(Jobs::NotifyChats.jobs).to eq([])
      end
    end
  end
end
```
assistant