Struct Harness 

pub struct Harness<P: UiPlugin> { /* private fields */ }

Drives a UiPlugin as a viewer does, on this thread’s MockHost.

Implementations

impl<P: UiPlugin> Harness<P>

pub fn activate(host: MockHost, config: &str) -> Self

Installs host and activates the plugin with config.

pub fn resize(&mut self, surface: &str, geometry: Geometry)

Lays a surface out at geometry and delivers the resize event.

pub fn frame( &mut self, now_ms: u64, interval_ms: u32, power: Power, ) -> Option<u64>

Calls frame with the paced interval and power state a viewer passes; returns when the plugin wants the next one.

pub fn event(&mut self, event: Event)

pub fn show(&mut self, surface: &str, visible: bool)

Shows or hides a surface, as the viewer does when it places it.

pub fn set_capabilities(&mut self, capabilities: Capabilities)

Changes what the viewer can show and tells the plugin.

pub fn set_theme(&mut self, theme: Theme)

Changes the theme and tells the plugin.

pub fn set_model(&mut self, surface: &str, model: Model)

Switches a multi-model surface to model, as the viewer does when its graphics support changes.

pub fn key(&mut self, surface: &str, code: KeyCode)

A key press on surface.

pub fn paste(&mut self, surface: &str, text: &str)

Text pasted into surface.

pub fn pointer(&mut self, surface: &str, kind: PointerKind, x: u32, y: u32)

A pointer event at (x, y) in the surface’s units.

pub fn command(&mut self, id: &str)

Runs one of the manifest’s commands.

pub fn answer_calls(&mut self) -> usize

Answers every call-async the plugin made so far from MockHost::call_answers, delivering one Event::CallResult each, in order. Returns how many.

pub fn take_frame_request(&mut self) -> Option<u64>

The frame the plugin asked for from an event, and clears it.

pub fn plugin<R>(&self, f: impl FnOnce(&mut P) -> R) -> R

The plugin, to assert on its state.

pub fn commits(&self, surface: &str) -> Vec<MockCommit>

pub fn host<R>(&self, f: impl FnOnce(&mut MockHost) -> R) -> R

pub fn deactivate(self)