Module testing 

Public testing harness for driving the application model without side effects.

Prefer TestUi over reaching for App, Renderer, or a raw Terminal<TestBackend>: it owns all of them and routes input, ACP events, task settling, and drawing through the same seams the event loop uses.

Re-exports

pub use crate::renderer::RenderStats;

Structs

BackendStats

Backend work since the last CountingBackend::take_stats: how much a frame pushed at the terminal. Because ratatui diffs buffers before flushing, cells_drawn counts only cells that actually changed — a frame that repaints a settled screen costs nothing.

CountingBackend

A TestBackend that counts what rendering pushes at it, for tests that bound rendering work instead of timing it.

FakeExecutor

A deterministic command runner for integration tests.

FakeFilesystem

An in-memory filesystem used by command-oriented tests.

FakeGit

A small stateful Git model. It keeps working-tree, index, and committed snapshots separate so staging and discarding have observable semantics.

FakeGitFile

RecordingBackend

TestTerminal

Deterministic terminal wrapper used by focused golden tests.

TestUi

A whole UI scenario: the app, the renderer that owns its scrollback, the terminal it draws into, and the receiver for the commands the app sends.

TestUiBuilder

Builds a TestUi: the terminal dimensions plus every app-scenario option a test cares about. Defaults match a plain make_app()-style scenario.

Enums

BackendEvent

A backend that records terminal history operations without involving a real terminal. It is intentionally small: only operations with an observable presentation contract are recorded.

StreamContent

The shape of message TestUi::stream_message streams.

Traits

BuffersReader

A backend whose screen and scrollback buffers can be read back, so a TestUi built on it can expose viewport/history/conversation text.

Functions

assert_buffer_eq

Asserts buffer’s visible text matches expected row-by-row after trimming trailing spaces, panicking on the first mismatched line with the full buffer dumped.

buffer_text

chunk_message

has_cell

Whether any cell drawn with symbol satisfies predicate.

line_text

row_containing

row_text

rows_with_background

How many rows contain at least one cell with background.

session_update

text_chunk

thought_chunk

tool_completed