describegpt: add tests

[rzmk]

🗺 Overview

Add tests to qsv's describegpt command.

📌 Tasks

• Tests
  • Use an invalid key and get the expected error response
  • If setting the --user-agent option, get the expected user-agent in the header
  • "valid" test with #[ignore] that fetches a successful response (set QSV_OPENAI_KEY in local env var)
    • "valid" tests show users examples of using the command and what to expect

[rzmk]

@jqnatividad For the invalid key I set a random value in .env. However, trying to get stderr output includes the status messages, so I'm wondering how I should set up an assertion.

https://github.com/jqnatividad/qsv/blob/3288f8060d0e719f71e0fc61db970227ff9d2b6f/src/cmd/describegpt.rs#L100

test test_describegpt::invalid_api_key ... FAILED

failures:

---- test_describegpt::invalid_api_key stdout ----
thread 'test_describegpt::invalid_api_key' panicked at 'assertion failed: `(left == right)`
  left: `"Generating stats from in.csv using qsv stats --everything...\nGenerating frequency from in.csv using qsv frequency...\nInteracting with OpenAI API...\n\nGenerating tags from OpenAI API...\nOpenAI API Error: {\"message\":\"Incorrect API key provided: asdfasfadssf. You can find your API 
key at https://platform.openai.com/account/api-keys.\",\"type\":\"invalid_request_error\",\"param\":null,\"code\":\"invalid_api_key\"}\n"`,
 right: `""`', tests\test_describegpt.rs:25:5

[jqnatividad]

Hi @rzmk ,

You can do something like this:

    let mut cmd = wrk.command("describegpt");
    cmd.arg("--all").arg("--json").args(["--openai-key","INVALIDKEY"]).arg("in.csv");

    let output = cmd.output().unwrap();
    let got_stderr= std::str::from_utf8(&output.stderr).unwrap_or_default();

    assert!(
        got_stderr.contains("Incorrect API key provided: INVALIDKEY"))
    );