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code-server/packages/protocol/test/command.test.ts

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import * as path from "path";
import { TextEncoder, TextDecoder } from "text-encoding";
import { createClient } from "./helpers";
(<any>global).TextDecoder = TextDecoder;
(<any>global).TextEncoder = TextEncoder;
describe("Command", () => {
const client = createClient();
it("should execute command and return output", (done) => {
const proc = client.spawn("echo", ["test"]);
proc.stdout.on("data", (data) => {
expect(data).toEqual("test\n");
});
proc.on("exit", (code) => {
done();
});
});
it("should create shell", (done) => {
const proc = client.spawn("/bin/bash", [], {
tty: {
columns: 100,
rows: 10,
},
});
let first = true;
proc.stdout.on("data", (data) => {
if (first) {
// First piece of data is a welcome msg. Second is the prompt
first = false;
return;
}
expect(data.toString().endsWith("$ ")).toBeTruthy();
proc.kill();
});
proc.on("exit", () => done());
});
it("should cat", (done) => {
const proc = client.spawn("cat", []);
expect(proc.pid).toBeUndefined();
proc.stdout.on("data", (data) => {
expect(data).toEqual("banana");
expect(proc.pid).toBeDefined();
proc.kill();
});
proc.on("exit", () => done());
proc.send("banana");
proc.stdin.end();
});
it("should print env variable", (done) => {
const proc = client.spawn("env", [], {
env: { hi: "donkey" },
});
proc.stdout.on("data", (data) => {
expect(data).toEqual("hi=donkey\n");
done();
});
});
it("should resize", (done) => {
// Requires the `tput lines` cmd to be available
const proc = client.spawn("/bin/bash", [], {
tty: {
columns: 10,
rows: 10,
},
});
let output: number = 0; // Number of outputs parsed
proc.stdout.on("data", (data) => {
output++;
if (output === 1) {
// First is welcome msg
return;
}
if (output === 2) {
proc.send("tput lines\n");
return;
}
if (output === 3) {
// Echo of tput lines
return;
}
if (output === 4) {
expect(data.toString().trim()).toEqual("10");
proc.resize!({
columns: 10,
rows: 50,
});
return;
}
if (output === 5) {
// Primpt
return;
}
if (output === 6) {
proc.send("tput lines\n");
return;
}
if (output === 7) {
// Echo of tput lines
return;
}
if (output === 8) {
expect(data.toString().trim()).toEqual("50");
proc.kill();
expect(proc.killed).toBeTruthy();
}
});
proc.on("exit", () => done());
});
it("should fork", (done) => {
const proc = client.fork(path.join(__dirname, "forker.js"));
proc.stdout.on("data", (data) => {
expect(data).toEqual("test");
});
proc.on("exit", () => done());
});
});