discourse-ai/spec/shared/inference/openai_completions_spec.rb

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# frozen_string_literal: true
require "rails_helper"
describe DiscourseAi::Inference::OpenAiCompletions do
before { SiteSetting.ai_openai_api_key = "abc-123" }
it "can complete a trivial prompt" do
body = <<~JSON
{"id":"chatcmpl-74OT0yKnvbmTkqyBINbHgAW0fpbxc","object":"chat.completion","created":1681281718,"model":"gpt-3.5-turbo-0301","usage":{"prompt_tokens":12,"completion_tokens":13,"total_tokens":25},"choices":[{"message":{"role":"assistant","content":"1. Serenity\\n2. Laughter\\n3. Adventure"},"finish_reason":"stop","index":0}]}
JSON
stub_request(:post, "https://api.openai.com/v1/chat/completions").with(
body:
"{\"model\":\"gpt-3.5-turbo\",\"messages\":[{\"role\":\"user\",\"content\":\"write 3 words\"}],\"temperature\":0.5,\"top_p\":0.8,\"max_tokens\":700}",
headers: {
"Authorization" => "Bearer #{SiteSetting.ai_openai_api_key}",
"Content-Type" => "application/json",
},
).to_return(status: 200, body: body, headers: {})
prompt = [role: "user", content: "write 3 words"]
completions =
DiscourseAi::Inference::OpenAiCompletions.perform!(
prompt,
"gpt-3.5-turbo",
temperature: 0.5,
top_p: 0.8,
max_tokens: 700,
)
expect(completions[:choices][0][:message][:content]).to eq(
"1. Serenity\n2. Laughter\n3. Adventure",
)
end
it "raises an error if attempting to stream without a block" do
expect do
DiscourseAi::Inference::OpenAiCompletions.perform!([], "gpt-3.5-turbo", stream: true)
end.to raise_error(ArgumentError)
end
def stream_line(finish_reason: nil, delta: {})
+"data: " << {
id: "chatcmpl-#{SecureRandom.hex}",
object: "chat.completion.chunk",
created: 1_681_283_881,
model: "gpt-3.5-turbo-0301",
choices: [{ delta: delta }],
finish_reason: finish_reason,
index: 0,
}.to_json
end
it "can operate in streaming mode" do
payload = [
stream_line(delta: { role: "assistant" }),
stream_line(delta: { content: "Mount" }),
stream_line(delta: { content: "ain" }),
stream_line(delta: { content: " " }),
stream_line(delta: { content: "Tree " }),
stream_line(delta: { content: "Frog" }),
stream_line(finish_reason: "stop"),
"[DONE]",
].join("\n\n")
stub_request(:post, "https://api.openai.com/v1/chat/completions").with(
body:
"{\"model\":\"gpt-3.5-turbo\",\"messages\":[{\"role\":\"user\",\"content\":\"write 3 words\"}],\"stream\":true}",
headers: {
"Accept" => "*/*",
"Authorization" => "Bearer abc-123",
"Content-Type" => "application/json",
"Host" => "api.openai.com",
},
).to_return(status: 200, body: payload, headers: {})
prompt = [role: "user", content: "write 3 words"]
content = +""
DiscourseAi::Inference::OpenAiCompletions.perform!(
prompt,
"gpt-3.5-turbo",
stream: true,
) do |partial, cancel|
data = partial[:choices][0].dig(:delta, :content)
content << data if data
cancel.call if content.split(" ").length == 2
end
expect(content).to eq("Mountain Tree ")
end
end