244 lines
8.8 KiB
TypeScript
244 lines
8.8 KiB
TypeScript
import assert from "node:assert/strict";
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import { spawn } from "node:child_process";
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import { EventEmitter, once } from "node:events";
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import { resolve } from "node:path";
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import test from "node:test";
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import { ImageClient } from "../src/client";
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import { parseValue } from "../src/values";
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import { startImage } from "./server";
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interface DapMessage {
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type: string;
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request_seq?: number;
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success?: boolean;
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message?: string;
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event?: string;
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body?: unknown;
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}
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function startAdapter(address: string) {
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const child = spawn(
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resolve(
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__dirname,
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"../../../target/debug",
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process.platform === "win32" ? "runa-dap.exe" : "runa-dap",
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),
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["--connect", address],
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{ stdio: ["pipe", "pipe", "pipe"] },
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);
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const messages: DapMessage[] = [];
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const changed = new EventEmitter();
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let buffer = Buffer.alloc(0);
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let sequence = 0;
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let failure: Error | undefined;
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let diagnostics = "";
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const fail = (error: Error) => {
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failure = error;
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changed.emit("message");
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};
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child.on("error", fail);
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child.stderr.on("data", (chunk: Buffer) => {
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diagnostics += chunk.toString();
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});
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child.on("exit", (code) => fail(new Error(`DAP exited (${code}): ${diagnostics}`)));
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child.stdout.on("data", (chunk: Buffer) => {
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try {
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buffer = Buffer.concat([buffer, chunk]);
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for (;;) {
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const end = buffer.indexOf("\r\n\r\n");
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if (end < 0) return;
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const match = /^Content-Length: (\d+)$/im.exec(buffer.subarray(0, end).toString());
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assert.ok(match, "DAP stdout must contain framed messages only");
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const length = Number(match[1]);
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if (buffer.length < end + 4 + length) return;
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const message: DapMessage = JSON.parse(
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buffer.subarray(end + 4, end + 4 + length).toString(),
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);
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buffer = buffer.subarray(end + 4 + length);
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messages.push(message);
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changed.emit("message");
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}
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} catch (error) {
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fail(error instanceof Error ? error : new Error(String(error)));
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}
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});
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const wait = (predicate: (message: DapMessage) => boolean, since = 0): Promise<DapMessage> =>
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new Promise((resolve, reject) => {
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const cleanup = () => {
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clearTimeout(timer);
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changed.off("message", check);
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};
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const check = () => {
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const found = messages.slice(since).find(predicate);
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if (found) {
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cleanup();
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resolve(found);
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} else if (failure) {
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cleanup();
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reject(failure);
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}
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};
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const timer = setTimeout(() => {
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cleanup();
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reject(
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new Error(
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`DAP response timed out: ${diagnostics}; ${JSON.stringify(messages.slice(-5))}`,
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),
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);
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}, 5000);
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changed.on("message", check);
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check();
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});
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return {
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messages,
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wait,
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async request<T>(command: string, args: unknown = {}): Promise<T> {
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const seq = ++sequence;
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const body = Buffer.from(JSON.stringify({ seq, type: "request", command, arguments: args }));
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child.stdin.write(
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Buffer.concat([Buffer.from(`Content-Length: ${body.length}\r\n\r\n`), body]),
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);
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const response = await wait(
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(message) => message.type === "response" && message.request_seq === seq,
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);
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if (!response.success) throw new Error(response.message);
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return response.body as T;
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},
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async stop() {
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if (child.exitCode !== null || child.signalCode !== null) return;
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const exited = once(child, "exit");
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child.kill();
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await exited;
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},
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};
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}
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test(
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"standalone Rust DAP binds behavior.rn breakpoints to one actor and serves exact loaded code",
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{ timeout: 20000 },
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async (t) => {
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const image = await startImage();
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t.after(async () => {
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try {
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await client.close();
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} finally {
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await image.stop();
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}
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});
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const client = await ImageClient.connect(image.address, (error) =>
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assert.equal(error, undefined),
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);
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const source =
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"pub fn handle(ctx, state, sender, message) {\n let next = state + 1;\n next\n}";
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const file = await client.writeSource("tests/dap_server", null, source);
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const actor = await client.spawn(file.path, parseValue("10"));
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const other = await client.spawn(file.path, parseValue("20"));
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const uri = `runa-actor://1/${actor}/behavior.rn`;
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const adapter = startAdapter(image.address);
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t.after(() => adapter.stop());
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await adapter.request("initialize", { linesStartAt1: true, columnsStartAt1: true });
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await adapter.request("attach", { actorRef: actor, behaviorSourceUri: uri });
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await adapter.request("configurationDone");
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await adapter.wait((message) => message.event === "stopped");
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assert.equal((await client.inspectActor(actor)).status.status, "paused");
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assert.equal((await client.inspectActor(other)).status.status, "idle");
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const breakpoints = await adapter.request<{ breakpoints: { verified: boolean }[] }>(
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"setBreakpoints",
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{ source: { path: uri }, breakpoints: [{ line: 2 }] },
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);
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assert.equal(breakpoints.breakpoints[0]?.verified, true);
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assert.equal((await client.inspectExecution(other)).debugger?.breakpoints.length ?? 0, 0);
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const dirty = await adapter.request<{ breakpoints: { verified: boolean }[] }>(
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"setBreakpoints",
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{ source: { path: uri }, sourceModified: true, breakpoints: [{ line: 2 }] },
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);
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assert.equal(dirty.breakpoints[0]?.verified, false);
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await adapter.request("setBreakpoints", { source: { path: uri }, breakpoints: [{ line: 2 }] });
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assert.deepEqual(await adapter.request("source", { sourceReference: 1 }), {
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content: source,
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mimeType: "text/x-rune",
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});
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await adapter.request("continue", { threadId: 1 });
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assert.equal((await client.inspectActor(actor)).execution, null, "continue must not tick");
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const since = adapter.messages.length;
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await client.send(actor, parseValue("null"));
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await client.tick(1, 1000);
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await adapter.wait((message) => message.event === "stopped", since);
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const stack = await adapter.request<{
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stackFrames: { id: number; line: number; source: { name: string } }[];
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}>("stackTrace", { threadId: 1 });
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assert.equal(stack.stackFrames[0]?.line, 2);
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assert.equal(stack.stackFrames[0]?.source.name, "behavior.rn");
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assert.deepEqual((await client.inspectActor(actor)).state, parseValue("10"));
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await assert.rejects(adapter.request("evaluate", { expression: "state + 1", context: "repl" }));
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await adapter.request("disconnect");
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assert.equal((await client.inspectActor(actor)).status.status, "paused");
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},
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);
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test(
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"standalone Rust DAP inspects failed actors without retrying their invocation",
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{ timeout: 20000 },
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async (t) => {
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const image = await startImage();
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t.after(async () => {
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try {
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await client.close();
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} finally {
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await image.stop();
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}
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});
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const client = await ImageClient.connect(image.address, (error) =>
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assert.equal(error, undefined),
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);
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const file = await client.writeSource(
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"tests/dap_failure",
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null,
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'pub fn handle(ctx, state, sender, message) { panic("DAP failure probe") }',
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);
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const actor = await client.spawn(file.path, parseValue("42"));
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await client.send(actor, parseValue('{"op":"fail"}'));
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await client.tick(1, 1000);
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const before = await client.inspectActor(actor);
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assert.equal(before.status.status, "failed");
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const adapter = startAdapter(image.address);
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t.after(() => adapter.stop());
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await adapter.request("initialize");
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await adapter.request("attach", { actorRef: actor });
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await adapter.request("configurationDone");
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const stop = await adapter.wait((message) => message.event === "stopped");
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assert.equal((stop.body as { reason: string }).reason, "exception");
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const exception = await adapter.request<{ description: string }>("exceptionInfo", {
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threadId: 1,
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});
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assert.equal(exception.description, before.status.message);
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assert.deepEqual(await adapter.request("stackTrace", { threadId: 1 }), {
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stackFrames: [],
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totalFrames: 0,
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});
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assert.equal(
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(
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await adapter.request<{ result: string }>("evaluate", {
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expression: "actor/committed_state",
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context: "watch",
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})
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).result,
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"42",
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);
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assert.equal(
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(
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await adapter.request<{ result: string }>("evaluate", {
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expression: "actor/mailbox/reserved/0/op",
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context: "repl",
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})
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).result,
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'"fail"',
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);
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for (const command of ["continue", "pause", "next", "stepIn", "stepOut"]) {
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await assert.rejects(adapter.request(command, { threadId: 1 }), /repair\/restart explicitly/);
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}
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await adapter.request("disconnect");
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assert.deepEqual(await client.inspectActor(actor), before);
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},
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);
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