Struct Harness 

pub struct Harness { /* private fields */ }

Test harness for interacting with Presentar widgets.

Implementations

impl Harness

pub fn new(root: impl Widget + 'static) -> Self

Create a new harness with a root widget.

pub const fn viewport(self, width: f32, height: f32) -> Self

Set the viewport size.

pub fn click(&mut self, selector: &str) -> &mut Self

Simulate a click on a widget matching the selector.

pub fn type_text(&mut self, selector: &str, text: &str) -> &mut Self

Simulate typing text into a widget.

pub fn press_key(&mut self, key: Key) -> &mut Self

Simulate a key press.

pub fn scroll(&mut self, selector: &str, delta: f32) -> &mut Self

Simulate scrolling.

pub fn query(&self, selector: &str) -> Option<&dyn Widget>

Query for a widget matching the selector.

pub fn query_all(&self, selector: &str) -> Vec<&dyn Widget>

Query for all widgets matching the selector.

pub fn text(&self, selector: &str) -> String

Get text content from a widget.

pub fn exists(&self, selector: &str) -> bool

Check if a widget exists.

pub fn assert_exists(&self, selector: &str) -> &Self

Assert that a widget exists.

Panics

Panics if the widget does not exist.

pub fn assert_not_exists(&self, selector: &str) -> &Self

Assert that a widget does not exist.

Panics

Panics if the widget exists.

pub fn assert_text(&self, selector: &str, expected: &str) -> &Self

Assert that text matches exactly.

Panics

Panics if the text does not match.

pub fn assert_text_contains(&self, selector: &str, substring: &str) -> &Self

Assert that text contains a substring.

Panics

Panics if the text does not contain the substring.

pub fn assert_count(&self, selector: &str, expected: usize) -> &Self

Assert the count of matching widgets.

Panics

Panics if the count does not match.

pub fn tick(&mut self, _ms: u64)

Advance simulated time.