Module testing 

Test utilities for code that depends on StreamingModelProvider.

FakeLlmProvider

A configurable fake that returns canned responses. Use it in place of real providers in unit tests:

use llm::testing::FakeLlmProvider;
use llm::{LlmResponse, Context};

// Returns "Hello!" then Done on the first call
let provider = FakeLlmProvider::with_single_response(vec![
    LlmResponse::text("Hello!"),
    LlmResponse::done(),
]);

Multiple turns – Pass a Vec<Vec<LlmResponse>> to FakeLlmProvider::new where each inner vec is the response for one call. Calls beyond the provided responses return a bare Done.

Context capture – Call captured_contexts() to get an Arc<Mutex<Vec<Context>>> that records every context passed to stream_response.

Customization – Chain with_display_name and with_context_window to configure the provider’s metadata.

LlmResponseBuilder

A builder for constructing response sequences with less boilerplate:

use llm::testing::llm_response;

let chunks = llm_response("msg-1")
    .text(&["Hello", " world"])
    .tool_call("tc-1", "read_file", &[r#"{"path":"#, r#""foo.rs"}"#])
    .build();
// Produces: Start -> Text("Hello") -> Text(" world") -> ToolRequestStart -> ... -> Done

Structs

FakeLlmProvider

FakeOAuthCredentialStore

LlmResponseBuilder

Functions

llm_response