lotabout.skim/tests/common/insta.rs
2026-06-17 13:58:44 +02:00

862 lines
33 KiB
Rust

use std::io::Cursor;
use clap::Parser;
use color_eyre::Result;
use crossterm::event::{KeyCode, KeyEvent, KeyModifiers};
use ratatui::backend::TestBackend;
use skim::prelude::*;
use skim::tui::event::Action;
use skim::tui::{Event, Size, Tui};
use skim::{Skim, SkimItemReceiver};
/// A test harness for running skim TUI tests with insta snapshots.
///
/// This struct wraps a [`Skim<TestBackend>`] instance, providing a synchronous,
/// event-driven interface that mirrors how the real application works. Events are
/// sent via the event channel and processed through the app's event loop.
///
/// The harness reuses as much of the production code path as possible:
/// - Items are loaded through the same `Reader` + `SkimItemReader` pipeline as
/// the real application
/// - Reload events use `Skim::handle_reload()`, the same logic as the production
/// event loop
/// - Reader completion is checked via `Skim::check_reader()`, identical to
/// production
pub struct TestHarness {
/// The Skim instance backed by a TestBackend for snapshot testing.
pub skim: Skim<TestBackend>,
/// Tokio runtime for async operations (preview commands, etc.)
pub runtime: tokio::runtime::Runtime,
/// The final event that caused the app to quit (for determining exit code)
pub final_event: Option<Event>,
}
impl TestHarness {
/// Process all pending events from the event queue.
///
/// This is the core method that processes events just like the real event loop
/// in `lib.rs`. It drains the event_rx channel and calls `app.handle_event()`
/// for each event, mimicking the actual application behavior.
///
/// For `Event::Reload`, it delegates to `Skim::handle_reload()` — the same
/// method used by the production event loop.
pub fn tick(&mut self) -> Result<()> {
// Drain-and-process in a loop so events queued during processing
// are picked up on the next iteration.
loop {
let mut events = Vec::new();
while let Ok(event) = self.skim.tui_mut().event_rx.try_recv() {
events.push(event);
}
if events.is_empty() {
break;
}
for event in events {
self.process_event(event)?;
}
}
Ok(())
}
/// Process a single event through the same logic as the production event loop.
///
/// `Event::Reload` is handled via `Skim::handle_reload()` — the exact same
/// method used in production. All other events are forwarded to
/// `app.handle_event()`.
fn process_event(&mut self, event: Event) -> Result<()> {
if let Event::Reload(ref new_cmd) = event {
let new_cmd = new_cmd.clone();
self.skim.handle_reload(&new_cmd);
} else {
// Let the app handle the event (this may queue more events)
// Enter the runtime context so that tokio::spawn() calls work
let _guard = self.runtime.enter();
let (app, tui) = self.skim.app_and_tui();
app.handle_event(tui, &event)?;
}
// Check reader status, just like the production event loop
self.skim.check_reader();
// Track if app should quit and what the final event was
if self.skim.app().should_quit && self.final_event.is_none() {
self.final_event = Some(event);
}
Ok(())
}
/// Send an event to the event queue.
///
/// This queues an event for processing. Call `tick()` to process queued events.
pub fn send(&mut self, event: Event) -> Result<()> {
self.skim.tui_mut().event_tx.try_send(event)?;
Ok(())
}
/// Send a key event and process it immediately.
///
/// This is the primary way to simulate user input. It:
/// 1. Sends the key event to the queue
/// 2. Processes all pending events (including any triggered by the key)
/// 3. Waits for reader (if running) and matcher to complete
pub fn key(&mut self, key: KeyEvent) -> Result<()> {
self.send(Event::Key(key))?;
self.tick()?;
self.wait_for_completion()?;
Ok(())
}
/// Send a character key event.
pub fn char(&mut self, c: char) -> Result<()> {
self.key(KeyEvent::new(KeyCode::Char(c), KeyModifiers::NONE))
}
/// Type a string, sending each character as a key event.
pub fn type_str(&mut self, s: &str) -> Result<()> {
for c in s.chars() {
self.char(c)?;
}
Ok(())
}
/// Send an action and process it immediately.
pub fn action(&mut self, action: Action) -> Result<()> {
self.send(Event::Action(action))?;
self.tick()?;
self.wait_for_completion()?;
Ok(())
}
/// Wait for any in-flight reader and matcher to complete.
///
/// If the reader is still running (e.g., after a reload in interactive mode),
/// waits for it to finish first. Then waits for the matcher if it needs to run.
///
/// If a debounced matcher restart is pending (e.g., because the query changed
/// within the 50ms debounce window), this forces the restart immediately so
/// tests don't see stale results.
fn wait_for_completion(&mut self) -> Result<()> {
// If a debounced matcher restart is pending, force it now.
// In production, the Heartbeat event would trigger this, but in tests
// we don't have a continuous heartbeat timer.
if self.skim.app().pending_matcher_restart {
self.skim.app_mut().restart_matcher(true);
}
// If the reader is running (not done), wait for it + matcher
if !self.skim.reader_done() {
self.wait_for_reader_and_matcher()?;
} else {
// Always wait for the matcher to ensure results are consumed.
// Even if stopped() is already true, wait_for_matcher will
// render and process heartbeat to consume processed_items.
self.wait_for_matcher()?;
}
Ok(())
}
/// Get a string representation of the current buffer for snapshot testing.
pub fn buffer_view(&self) -> String {
self.skim.tui_ref().backend().to_string()
}
/// Prepare for taking a snapshot by waiting for preview and processing heartbeat.
///
/// This ensures the state is up-to-date before taking a snapshot.
/// Call `render()` and `buffer_view()` afterward to actually take the snapshot.
pub fn prepare_snap(&mut self) -> Result<()> {
// Send heartbeat first to trigger any debounced pending preview runs.
// The debounce logic in run_preview() sets pending_preview_run=true when
// a RunPreview is dropped. The Heartbeat handler checks this flag and
// spawns the preview. We need this to happen BEFORE wait_for_preview()
// so it can detect and wait for the spawned preview task.
self.send(Event::Heartbeat)?;
self.tick()?;
self.handle_remaining_events()?;
// Force a final render so that any state changes (e.g. PreviewReady) that
// were processed inside handle_remaining_events are reflected in the buffer
// before we take the snapshot. We bypass the frame-rate throttle by sending
// Render directly instead of relying on the Heartbeat path.
self.send(Event::Render)?;
self.tick()?;
Ok(())
}
/// Take a snapshot of the current state.
///
/// NOTE: This method should NOT be called from test code directly because
/// insta will use the wrong file path for the snapshot. Use the snap! macro instead.
#[doc(hidden)]
pub fn snap(&mut self) -> Result<()> {
self.prepare_snap()?;
let buf = self.buffer_view();
let cursor_pos = format!(
"cursor: {}x{}",
self.skim.app().cursor_pos.0,
self.skim.app().cursor_pos.1
);
insta::assert_snapshot!(buf + &cursor_pos);
Ok(())
}
/// Wait for the reader to finish producing items and the matcher to complete.
///
/// This polls `Skim::reader_done()` and `Skim::check_reader()` — the same
/// methods used by the production event loop — until the reader has finished,
/// then waits for the matcher to process all items.
pub fn wait_for_reader_and_matcher(&mut self) -> Result<()> {
let timeout = std::time::Duration::from_secs(5);
let start = std::time::Instant::now();
let poll_interval = std::time::Duration::from_millis(10);
// Wait for reader to finish
while !self.skim.reader_done() {
if start.elapsed() > timeout {
return Err(color_eyre::eyre::eyre!("Timeout waiting for reader to finish"));
}
// Check reader status (may restart matcher)
self.skim.check_reader();
std::thread::sleep(poll_interval);
}
// Final check to restart matcher with remaining items
self.skim.check_reader();
self.wait_for_matcher()?;
Ok(())
}
/// Wait for matcher to complete processing.
pub fn wait_for_matcher(&mut self) -> Result<()> {
let timeout = std::time::Duration::from_secs(5);
let start = std::time::Instant::now();
let poll_interval = std::time::Duration::from_millis(10);
// Wait for matcher to complete
while !self.skim.app().matcher_control.stopped() {
if start.elapsed() > timeout {
return Err(color_eyre::eyre::eyre!("Timeout waiting for matcher to stop"));
}
std::thread::sleep(poll_interval);
}
// Give the background processing thread time to receive items
std::thread::sleep(std::time::Duration::from_millis(50));
// Process heartbeat to update status counters
self.send(Event::Heartbeat)?;
self.tick()?;
// Manually trigger preview if configured and an item is selected
// Note: on_item_changed won't trigger automatically because the item was
// already selected during render, so prev_item == new_item
let needs_preview = self.skim.app().options.preview.is_some() && self.skim.app().item_list.selected().is_some();
if needs_preview {
self.send(Event::RunPreview)?;
self.handle_remaining_events()?;
}
Ok(())
}
/// Wait for preview to be ready.
pub fn handle_remaining_events(&mut self) -> Result<()> {
// Process any queued events first (including RunPreview)
self.tick()?;
// If there's no preview task running, nothing to wait for
let has_pending = match self.skim.app().preview.thread_handle {
Some(ref handle) => !handle.is_finished(),
None => false,
};
if !has_pending {
// Thread is already done (or was never started). Drain any events it may
// have sent (e.g. PreviewReady) that arrived after our initial tick().
self.tick()?;
return Ok(());
}
// Wait for the preview thread to finish, then drain its events.
let timeout = std::time::Duration::from_secs(2);
let start = std::time::Instant::now();
loop {
// Sleep to give the background thread time to make progress
std::thread::sleep(std::time::Duration::from_millis(10));
// Drain and process any events (including PreviewReady)
self.tick()?;
// Exit as soon as the thread is done and we have processed its events
let finished = self
.skim
.app()
.preview
.thread_handle
.as_ref()
.map(|h| h.is_finished())
.unwrap_or(true);
if finished {
// One final drain to catch any events emitted right at thread exit
self.tick()?;
return Ok(());
}
if start.elapsed() > timeout {
return Ok(());
}
}
}
/// Process a heartbeat event to update status counters.
pub fn heartbeat(&mut self) -> Result<()> {
self.send(Event::Heartbeat)?;
self.tick()
}
/// Get the exit code that skim would return based on the final event.
///
/// This mimics the logic in `bin/main.rs`:
/// - 130 if the app aborted (Ctrl+C, Ctrl+D, Esc, etc.)
/// - 0 if the app accepted (Enter)
/// - None if the app hasn't quit yet
pub fn app_exit_code(&self) -> Option<i32> {
if !self.skim.app().should_quit {
return None;
}
// Check if the final event was an Accept action
// This matches the logic in lib.rs:560
let is_abort = self
.final_event
.as_ref()
.map(|event| !matches!(event, Event::Action(Action::Accept(_))))
.unwrap_or(true);
Some(if is_abort { 130 } else { 0 })
}
}
// ============================================================================
// Factory functions
// ============================================================================
/// Initialize a test harness with the given options, dimensions, and optional item source.
///
/// Uses [`Skim::init`] for the core initialization (App, Reader, theme, etc.)
/// and [`Skim::init_tui_with`] to inject a [`TestBackend`].
/// Then calls [`Skim::start`] to begin the reader and matcher — the same
/// production code path used by the real application.
fn enter_sized_with_source(
options: SkimOptions,
width: u16,
height: u16,
source: Option<SkimItemReceiver>,
) -> Result<TestHarness> {
let backend = TestBackend::new(width, height);
let tui = Tui::new_with_height_and_backend(backend, Size::Percent(100))?;
let mut skim = Skim::<TestBackend>::init(options, source)?;
skim.init_tui_with(tui);
// Start the reader and matcher — the same call the production binary makes
skim.start();
// Create a multi-threaded tokio runtime for async operations (preview commands, etc.)
let runtime = tokio::runtime::Builder::new_multi_thread().enable_all().build()?;
let mut harness = TestHarness {
skim,
runtime,
final_event: None,
};
// Wait for the reader to finish and matcher to complete
harness.wait_for_reader_and_matcher()?;
Ok(harness)
}
/// Initialize a test harness with the given options and dimensions.
pub fn enter_sized(options: SkimOptions, width: u16, height: u16) -> Result<TestHarness> {
enter_sized_with_source(options, width, height, None)
}
/// Initialize a test harness with default dimensions (80x24).
pub fn enter(options: SkimOptions) -> Result<TestHarness> {
enter_sized(options, 80, 24)
}
/// Initialize a test harness with default options.
pub fn enter_default() -> Result<TestHarness> {
enter_sized(SkimOptions::default().build(), 80, 24)
}
/// Initialize a test harness with pre-loaded items.
///
/// Items are fed through the production `Reader` + `SkimItemReader` pipeline
/// by converting them to a newline-separated byte stream and using
/// `SkimItemReader::of_bufread()`.
pub fn enter_items<I, S>(items: I, options: SkimOptions) -> Result<TestHarness>
where
I: IntoIterator<Item = S>,
S: AsRef<str>,
{
// Build a newline-terminated string from items and feed through SkimItemReader.
// Each item must end with '\n' so the reader produces one item per entry,
// including empty-string items like "".
let text: String = items
.into_iter()
.map(|s| {
let mut line = s.as_ref().to_owned();
line.push('\n');
line
})
.collect();
let reader_opts = SkimItemReaderOption::from_options(&options);
let item_reader = SkimItemReader::new(reader_opts);
let rx = item_reader.of_bufread(Cursor::new(text));
enter_sized_with_source(options, 80, 24, Some(rx))
}
/// Initialize a test harness with raw bytes as input.
///
/// Feeds bytes directly through the `SkimItemReader` pipeline without spawning
/// a subprocess. Useful for inputs containing NUL bytes (e.g. `--read0` tests)
/// where the byte sequence cannot be expressed as a simple string.
pub fn enter_bytes(bytes: &'static [u8], options: SkimOptions) -> Result<TestHarness> {
let reader_opts = SkimItemReaderOption::from_options(&options);
let item_reader = SkimItemReader::new(reader_opts);
let rx = item_reader.of_bufread(Cursor::new(bytes));
enter_sized_with_source(options, 80, 24, Some(rx))
}
/// Initialize a test harness with command output as items.
///
/// The command is executed through the production `Reader` + `SkimItemReader`
/// pipeline, identical to how the real application works.
pub fn enter_cmd(cmd: &str, options: SkimOptions) -> Result<TestHarness> {
let reader_opts = SkimItemReaderOption::from_options(&options);
let item_reader = SkimItemReader::new(reader_opts);
let rx = item_reader.of_bufread(std::io::BufReader::new(
std::process::Command::new("sh")
.arg("-c")
.arg(cmd)
.stdout(std::process::Stdio::piped())
.stderr(std::process::Stdio::null())
.spawn()?
.stdout
.ok_or_else(|| color_eyre::eyre::eyre!("Failed to capture stdout"))?,
));
enter_sized_with_source(options, 80, 24, Some(rx))
}
/// Initialize a test harness for interactive mode.
///
/// Uses [`Skim::start`] which already handles interactive mode correctly:
/// it expands the command template with the initial query and starts the
/// reader pipeline.
pub fn enter_interactive(options: SkimOptions) -> Result<TestHarness> {
// Skim::init() computes initial_cmd for interactive mode,
// and Skim::start() kicks off the reader with it.
// No special-casing needed here.
enter(options)
}
/// Format a slice of CLI-style option strings as a single space-separated string.
///
/// Used by `insta_test!` to build snapshot descriptions. Accepting `&[&str]`
/// explicitly avoids the type-inference failure that occurs when the macro
/// passes an un-typed empty slice literal (`&[]`) to `.join()`.
pub fn fmt_opts(opts: &[&str]) -> String {
opts.join(" ")
}
/// Parse SkimOptions from CLI-style arguments.
pub fn parse_options(args: &[&str]) -> SkimOptions {
let mut full_args = vec!["sk"];
full_args.extend(args);
SkimOptions::try_parse_from(full_args)
.expect("Failed to parse options")
.build()
}
// ============================================================================
// Macros
// ============================================================================
#[macro_export]
macro_rules! snap {
// With description and a 1-based counter — uses `snapshot_suffix` so that
// insta names the file `test_name@001.snap`, `test_name@002.snap`, …
// Files then sort correctly in `cargo insta review`.
($harness:ident, $desc:expr, $count:expr) => {{
$harness.prepare_snap()?;
let __buf = $harness.buffer_view();
let __cursor_pos = format!(
"cursor: ({}, {})",
$harness.skim.app().cursor_pos.1 + 1,
$harness.skim.app().cursor_pos.0 + 1
);
insta::with_settings!({
description => $desc,
snapshot_suffix => format!("{:03}", $count),
omit_expression => true,
}, {
insta::assert_snapshot!(__buf + &__cursor_pos);
});
}};
// With description only (simple/single-snapshot variants) — no suffix, so
// the file is named `test_name.snap` as before.
($harness:ident, $desc:expr) => {{
$harness.prepare_snap()?;
let __buf = $harness.buffer_view();
let __cursor_pos = format!(
"cursor: ({}, {})",
$harness.skim.app().cursor_pos.1 + 1,
$harness.skim.app().cursor_pos.0 + 1
);
insta::with_settings!({ description => $desc, omit_expression => true }, {
insta::assert_snapshot!(__buf + &__cursor_pos);
});
}};
// Backward-compat form — no description, no suffix.
($harness:ident) => {
$crate::snap!($harness, "")
};
}
/// Macro for writing compact insta snapshot tests.
///
/// # Usage
///
/// ## Input syntax:
/// - `["a", "b", "c"]` - items array
/// - `@cmd "seq 1 100"` - command output as items
/// - `@interactive` - interactive mode with `--cmd`
///
/// ## Basic usage (just takes a snapshot):
/// ```ignore
/// insta_test!(test_name, ["item1", "item2"], &["--opts"]);
/// ```
///
/// ## DSL usage (with commands):
/// ```ignore
/// insta_test!(test_name, ["a", "b", "c"], &["--multi"], {
/// @snap; // Take snapshot
/// @char 'f'; // Send single character
/// @type "foo"; // Type string
/// @action Down(1); // Send action
/// @key Enter; // Send special key
/// @exited 0; // Assert command exited with status code 0
/// });
/// ```
#[macro_export]
macro_rules! insta_test {
// Simple variant with items array - just snapshot
($name:ident, [$($item:expr),* $(,)?], $options:expr) => {
#[test]
fn $name() -> color_eyre::Result<()> {
let options = $crate::common::insta::parse_options($options);
let mut h = $crate::common::insta::enter_items([$($item),*], options)?;
let __desc = format!(
"input: items [{}]\noptions: {}",
stringify!($($item),*),
$crate::common::insta::fmt_opts($options),
);
$crate::snap!(h, &__desc);
Ok(())
}
};
// Simple variant with items expression (identifier or expression) - just snapshot
($name:ident, $items:expr, $options:expr) => {
#[test]
fn $name() -> color_eyre::Result<()> {
let options = $crate::common::insta::parse_options($options);
let mut h = $crate::common::insta::enter_items($items, options)?;
let __desc = format!(
"input: items {}\noptions: {}",
stringify!($items),
$crate::common::insta::fmt_opts($options),
);
$crate::snap!(h, &__desc);
Ok(())
}
};
// Simple variant with @cmd - just snapshot
($name:ident, @cmd $cmd:expr, $options:expr) => {
#[test]
fn $name() -> color_eyre::Result<()> {
let options = $crate::common::insta::parse_options($options);
let mut h = $crate::common::insta::enter_cmd($cmd, options)?;
let __desc = format!(
"input: cmd {}\noptions: {}",
stringify!($cmd),
$crate::common::insta::fmt_opts($options),
);
$crate::snap!(h, &__desc);
Ok(())
}
};
// Simple variant with @bytes - just snapshot
($name:ident, @bytes $bytes:expr, $options:expr) => {
#[test]
fn $name() -> color_eyre::Result<()> {
let options = $crate::common::insta::parse_options($options);
let mut h = $crate::common::insta::enter_bytes($bytes, options)?;
let __desc = format!(
"input: bytes {}\noptions: {}",
stringify!($bytes),
$crate::common::insta::fmt_opts($options),
);
$crate::snap!(h, &__desc);
Ok(())
}
};
// Simple variant with @interactive - just snapshot
($name:ident, @interactive, $options:expr) => {
#[test]
fn $name() -> color_eyre::Result<()> {
let options = $crate::common::insta::parse_options($options);
let mut h = $crate::common::insta::enter_interactive(options)?;
let __desc = format!(
"input: interactive\noptions: {}",
$crate::common::insta::fmt_opts($options),
);
$crate::snap!(h, &__desc);
Ok(())
}
};
// DSL variant with items expression (identifier or expression)
($name:ident, $items:expr, $options:expr, { $($content:tt)* }) => {
#[test]
fn $name() -> color_eyre::Result<()> {
let options = $crate::common::insta::parse_options($options);
let mut h = $crate::common::insta::enter_items($items, options)?;
let __base_desc = format!(
"input: items {}\noptions: {}",
stringify!($items),
$crate::common::insta::fmt_opts($options),
);
let mut __cmds: Vec<&'static str> = Vec::new();
let mut __snap_count: u32 = 0;
insta_test!(@expand h, __base_desc, __cmds, __snap_count; $($content)*);
Ok(())
}
};
// DSL variant with @cmd
($name:ident, @cmd $cmd:expr, $options:expr, { $($content:tt)* }) => {
#[test]
fn $name() -> color_eyre::Result<()> {
let options = $crate::common::insta::parse_options($options);
let mut h = $crate::common::insta::enter_cmd($cmd, options)?;
let __base_desc = format!(
"input: cmd {}\noptions: {}",
stringify!($cmd),
$crate::common::insta::fmt_opts($options),
);
let mut __cmds: Vec<&'static str> = Vec::new();
let mut __snap_count: u32 = 0;
insta_test!(@expand h, __base_desc, __cmds, __snap_count; $($content)*);
Ok(())
}
};
// DSL variant with @bytes
($name:ident, @bytes $bytes:expr, $options:expr, { $($content:tt)* }) => {
#[test]
fn $name() -> color_eyre::Result<()> {
let options = $crate::common::insta::parse_options($options);
let mut h = $crate::common::insta::enter_bytes($bytes, options)?;
let __base_desc = format!(
"input: bytes {}\noptions: {}",
stringify!($bytes),
$crate::common::insta::fmt_opts($options),
);
let mut __cmds: Vec<&'static str> = Vec::new();
let mut __snap_count: u32 = 0;
insta_test!(@expand h, __base_desc, __cmds, __snap_count; $($content)*);
Ok(())
}
};
// DSL variant with @interactive
($name:ident, @interactive, $options:expr, { $($content:tt)* }) => {
#[test]
fn $name() -> color_eyre::Result<()> {
let options = $crate::common::insta::parse_options($options);
let mut h = $crate::common::insta::enter_interactive(options)?;
let __base_desc = format!(
"input: interactive\noptions: {}",
$crate::common::insta::fmt_opts($options),
);
let mut __cmds: Vec<&'static str> = Vec::new();
let mut __snap_count: u32 = 0;
insta_test!(@expand h, __base_desc, __cmds, __snap_count; $($content)*);
Ok(())
}
};
// Token processing rules
(@expand $h:ident, $base:ident, $cmds:ident, $count:ident; ) => {};
// @snap - increment counter, build description, snapshot with sorted suffix, clear
(@expand $h:ident, $base:ident, $cmds:ident, $count:ident; @snap; $($rest:tt)*) => {
{
$count += 1;
let __snap_desc = if $cmds.is_empty() {
$base.clone()
} else {
format!("{}\nafter:\n {}", $base, $cmds.join("\n "))
};
$crate::snap!($h, &__snap_desc, $count);
$cmds.clear();
}
insta_test!(@expand $h, $base, $cmds, $count; $($rest)*);
};
// @char - send single character
(@expand $h:ident, $base:ident, $cmds:ident, $count:ident; @char $c:expr ; $($rest:tt)*) => {
$cmds.push(concat!("@char ", stringify!($c)));
$h.char($c)?;
insta_test!(@expand $h, $base, $cmds, $count; $($rest)*);
};
// @type - type a string
(@expand $h:ident, $base:ident, $cmds:ident, $count:ident; @type $text:expr ; $($rest:tt)*) => {
$cmds.push(concat!("@type ", stringify!($text)));
$h.type_str($text)?;
insta_test!(@expand $h, $base, $cmds, $count; $($rest)*);
};
// @action - send an action (e.g., @action Down(1); or @action BackwardChar;)
(@expand $h:ident, $base:ident, $cmds:ident, $count:ident; @action $action:ident ; $($rest:tt)*) => {
$cmds.push(concat!("@action ", stringify!($action)));
$h.action(skim::tui::event::Action::$action)?;
insta_test!(@expand $h, $base, $cmds, $count; $($rest)*);
};
// @action with parenthesized args (e.g., @action Down(1);)
(@expand $h:ident, $base:ident, $cmds:ident, $count:ident; @action $action:ident ($($args:tt)*) ; $($rest:tt)*) => {
$cmds.push(concat!("@action ", stringify!($action), "(", stringify!($($args)*), ")"));
$h.action(skim::tui::event::Action::$action($($args)*))?;
insta_test!(@expand $h, $base, $cmds, $count; $($rest)*);
};
// @key - send a special key (Enter, Escape, Tab, etc.)
(@expand $h:ident, $base:ident, $cmds:ident, $count:ident; @key $key:ident ; $($rest:tt)*) => {
$cmds.push(concat!("@key ", stringify!($key)));
$h.key(crossterm::event::KeyEvent::new(
crossterm::event::KeyCode::$key,
crossterm::event::KeyModifiers::NONE
))?;
insta_test!(@expand $h, $base, $cmds, $count; $($rest)*);
};
// @ctrl - send a key with Ctrl modifier
(@expand $h:ident, $base:ident, $cmds:ident, $count:ident; @ctrl $key:ident ; $($rest:tt)*) => {
$cmds.push(concat!("@ctrl ", stringify!($key)));
$h.key(crossterm::event::KeyEvent::new(
crossterm::event::KeyCode::$key,
crossterm::event::KeyModifiers::CONTROL
))?;
insta_test!(@expand $h, $base, $cmds, $count; $($rest)*);
};
// @ctrl with char
(@expand $h:ident, $base:ident, $cmds:ident, $count:ident; @ctrl $key:literal ; $($rest:tt)*) => {
$cmds.push(concat!("@ctrl ", stringify!($key)));
$h.key(crossterm::event::KeyEvent::new(
crossterm::event::KeyCode::Char($key),
crossterm::event::KeyModifiers::CONTROL
))?;
insta_test!(@expand $h, $base, $cmds, $count; $($rest)*);
};
// @alt - send a key with Alt modifier
(@expand $h:ident, $base:ident, $cmds:ident, $count:ident; @alt $key:ident ; $($rest:tt)*) => {
$cmds.push(concat!("@alt ", stringify!($key)));
$h.key(crossterm::event::KeyEvent::new(
crossterm::event::KeyCode::$key,
crossterm::event::KeyModifiers::ALT
))?;
insta_test!(@expand $h, $base, $cmds, $count; $($rest)*);
};
// @alt with char
(@expand $h:ident, $base:ident, $cmds:ident, $count:ident; @alt $key:literal ; $($rest:tt)*) => {
$cmds.push(concat!("@alt ", stringify!($key)));
$h.key(crossterm::event::KeyEvent::new(
crossterm::event::KeyCode::Char($key),
crossterm::event::KeyModifiers::ALT
))?;
insta_test!(@expand $h, $base, $cmds, $count; $($rest)*);
};
// @shift - send a key with Shift modifier
(@expand $h:ident, $base:ident, $cmds:ident, $count:ident; @shift $key:ident ; $($rest:tt)*) => {
$cmds.push(concat!("@shift ", stringify!($key)));
$h.key(crossterm::event::KeyEvent::new(
crossterm::event::KeyCode::$key,
crossterm::event::KeyModifiers::SHIFT
))?;
insta_test!(@expand $h, $base, $cmds, $count; $($rest)*);
};
// @shift with char
(@expand $h:ident, $base:ident, $cmds:ident, $count:ident; @shift $key:literal ; $($rest:tt)*) => {
$cmds.push(concat!("@shift ", stringify!($key)));
$h.key(crossterm::event::KeyEvent::new(
crossterm::event::KeyCode::Char($key),
crossterm::event::KeyModifiers::SHIFT
))?;
insta_test!(@expand $h, $base, $cmds, $count; $($rest)*);
};
// @dbg - debug print current buffer (not recorded in command history)
(@expand $h:ident, $base:ident, $cmds:ident, $count:ident; @dbg; $($rest:tt)*) => {
$h.render()?;
println!("DBG buffer:\n{}", $h.buffer_view());
insta_test!(@expand $h, $base, $cmds, $count; $($rest)*);
};
// @assert - run an assertion closure
// Pass a closure that takes the harness as parameter
// Usage: @assert(|h| h.skim.app().should_quit);
// @assert(|h| h.skim.app().item_list.selected().unwrap().text() == "1");
(@expand $h:ident, $base:ident, $cmds:ident, $count:ident; @assert ( $assertion:expr ) ; $($rest:tt)*) => {
assert!(($assertion)(&$h));
insta_test!(@expand $h, $base, $cmds, $count; $($rest)*);
};
// @exited - assert that the app would exit with a specific status code
// Usage: @exited 0; // Assert successful exit (Accept)
// @exited 130; // Assert abort (Ctrl+C, Ctrl+D, Esc)
(@expand $h:ident, $base:ident, $cmds:ident, $count:ident; @exited $code:expr ; $($rest:tt)*) => {
assert_eq!(
$h.app_exit_code(),
Some($code),
"Expected app to exit with status code {}, but got {:?}",
$code,
$h.app_exit_code()
);
insta_test!(@expand $h, $base, $cmds, $count; $($rest)*);
};
}