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denoland-deno/cli/tests/unit/tty_test.ts
Asher Gomez 4eedac3604
feat: Deno.{stdin,stdout,stderr}.isTerminal(), deprecate Deno.isatty() (#22011)
This change:
1. Implements `Deno.stdin.isTerminal()`, `Deno.stdout.isTerminal()` and
`Deno.stderr.isTerminal()`.
2. Deprecates `Deno.isatty()` for removal in Deno v2, in favour of the
above instance methods.
3. Replaces use of `Deno.isatty()` with the above instance methods.

Related #21995

---------

Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>
Co-authored-by: Divy Srivastava <dj.srivastava23@gmail.com>
2024-01-24 00:01:56 +01:00

32 lines
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TypeScript

// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import { assert } from "./test_util.ts";
// Note tests for Deno.stdin.setRaw is in integration tests.
Deno.test(function consoleSize() {
if (!Deno.stdout.isTerminal()) {
return;
}
const result = Deno.consoleSize();
assert(typeof result.columns !== "undefined");
assert(typeof result.rows !== "undefined");
});
Deno.test({ permissions: { read: true } }, function isatty() {
// CI not under TTY, so cannot test stdin/stdout/stderr.
const f = Deno.openSync("cli/tests/testdata/assets/hello.txt");
assert(!Deno.isatty(f.rid));
f.close();
});
Deno.test(function isattyError() {
let caught = false;
try {
// Absurdly large rid.
Deno.isatty(0x7fffffff);
} catch (e) {
caught = true;
assert(e instanceof Deno.errors.BadResource);
}
assert(caught);
});