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server.rs
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server.rs
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// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
use super::collectors::TestCollector;
use super::definitions::TestDefinitions;
use super::execution::TestRun;
use super::lsp_custom;
use crate::lsp::client::Client;
use crate::lsp::client::TestingNotification;
use crate::lsp::config;
use crate::lsp::documents::DocumentsFilter;
use crate::lsp::language_server::StateSnapshot;
use crate::lsp::performance::Performance;
use deno_ast::swc::visit::VisitWith;
use deno_core::error::AnyError;
use deno_core::parking_lot::Mutex;
use deno_core::serde_json::json;
use deno_core::serde_json::Value;
use deno_core::ModuleSpecifier;
use deno_runtime::tokio_util::create_basic_runtime;
use std::collections::HashMap;
use std::collections::HashSet;
use std::sync::Arc;
use std::thread;
use tokio::sync::mpsc;
use tower_lsp::jsonrpc::Error as LspError;
use tower_lsp::jsonrpc::Result as LspResult;
use tower_lsp::lsp_types as lsp;
fn as_delete_notification(uri: ModuleSpecifier) -> TestingNotification {
TestingNotification::DeleteModule(
lsp_custom::TestModuleDeleteNotificationParams {
text_document: lsp::TextDocumentIdentifier { uri },
},
)
}
/// The main structure which handles requests and sends notifications related
/// to the Testing API.
#[derive(Debug)]
pub struct TestServer {
client: Client,
performance: Arc<Performance>,
/// A channel for handling run requests from the client
run_channel: mpsc::UnboundedSender<u32>,
/// A map of run ids to test runs
runs: Arc<Mutex<HashMap<u32, TestRun>>>,
/// Tests that are discovered from a versioned document
tests: Arc<Mutex<HashMap<ModuleSpecifier, TestDefinitions>>>,
/// A channel for requesting that changes to documents be statically analyzed
/// for tests
update_channel: mpsc::UnboundedSender<Arc<StateSnapshot>>,
}
impl TestServer {
pub fn new(
client: Client,
performance: Arc<Performance>,
maybe_root_uri: Option<ModuleSpecifier>,
) -> Self {
let tests: Arc<Mutex<HashMap<ModuleSpecifier, TestDefinitions>>> =
Arc::new(Mutex::new(HashMap::new()));
let (update_channel, mut update_rx) =
mpsc::unbounded_channel::<Arc<StateSnapshot>>();
let (run_channel, mut run_rx) = mpsc::unbounded_channel::<u32>();
let server = Self {
client,
performance,
run_channel,
runs: Default::default(),
tests,
update_channel,
};
let tests = server.tests.clone();
let client = server.client.clone();
let performance = server.performance.clone();
let mru = maybe_root_uri.clone();
let _update_join_handle = thread::spawn(move || {
let runtime = create_basic_runtime();
runtime.block_on(async {
loop {
match update_rx.recv().await {
None => break,
Some(snapshot) => {
let mark = performance.mark("testing_update", None::<()>);
let mut tests = tests.lock();
// we create a list of test modules we currently are tracking
// eliminating any we go over when iterating over the document
let mut keys: HashSet<ModuleSpecifier> =
tests.keys().cloned().collect();
for document in snapshot
.documents
.documents(DocumentsFilter::AllDiagnosable)
{
let specifier = document.specifier();
keys.remove(specifier);
let script_version = document.script_version();
let valid = if let Some(test) = tests.get(specifier) {
test.script_version == script_version
} else {
false
};
if !valid {
if let Some(Ok(parsed_source)) =
document.maybe_parsed_source()
{
let mut collector = TestCollector::new(
specifier.clone(),
parsed_source.text_info().clone(),
);
parsed_source.module().visit_with(&mut collector);
let test_definitions = TestDefinitions {
discovered: collector.take(),
injected: Default::default(),
script_version,
};
if !test_definitions.discovered.is_empty() {
client.send_test_notification(
test_definitions.as_notification(
specifier,
mru.as_ref(),
parsed_source.text_info(),
),
);
}
tests.insert(specifier.clone(), test_definitions);
}
}
}
for key in keys {
client.send_test_notification(as_delete_notification(key));
}
performance.measure(mark);
}
}
}
})
});
let client = server.client.clone();
let runs = server.runs.clone();
let _run_join_handle = thread::spawn(move || {
let runtime = create_basic_runtime();
runtime.block_on(async {
loop {
match run_rx.recv().await {
None => break,
Some(id) => {
let maybe_run = {
let runs = runs.lock();
runs.get(&id).cloned()
};
if let Some(run) = maybe_run {
match run.exec(&client, maybe_root_uri.as_ref()).await {
Ok(_) => (),
Err(err) => {
client.show_message(lsp::MessageType::ERROR, err);
}
}
client.send_test_notification(TestingNotification::Progress(
lsp_custom::TestRunProgressParams {
id,
message: lsp_custom::TestRunProgressMessage::End,
},
));
runs.lock().remove(&id);
}
}
}
}
})
});
server
}
fn enqueue_run(&self, id: u32) -> Result<(), AnyError> {
self.run_channel.send(id).map_err(|err| err.into())
}
/// A request from the client to cancel a test run.
pub fn run_cancel_request(
&self,
params: lsp_custom::TestRunCancelParams,
) -> LspResult<Option<Value>> {
if let Some(run) = self.runs.lock().get(¶ms.id) {
run.cancel();
Ok(Some(json!(true)))
} else {
Ok(Some(json!(false)))
}
}
/// A request from the client to start a test run.
pub fn run_request(
&self,
params: lsp_custom::TestRunRequestParams,
workspace_settings: config::WorkspaceSettings,
) -> LspResult<Option<Value>> {
let test_run =
{ TestRun::new(¶ms, self.tests.clone(), workspace_settings) };
let enqueued = test_run.as_enqueued();
{
let mut runs = self.runs.lock();
runs.insert(params.id, test_run);
}
self.enqueue_run(params.id).map_err(|err| {
log::error!("cannot enqueue run: {}", err);
LspError::internal_error()
})?;
Ok(Some(json!({ "enqueued": enqueued })))
}
pub(crate) fn update(
&self,
snapshot: Arc<StateSnapshot>,
) -> Result<(), AnyError> {
self.update_channel.send(snapshot).map_err(|err| err.into())
}
}