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denoland-deno/cli/js/dispatch_minimal_test.ts
Bartek Iwańczuk 8d96dffa41
refactor: rewrite testPerm into unitTest (#4231)
Rewrite "testPerm" helper function used for testing of internal 
runtime code. It's been renamed to "unitTest" and provides API that
is extensible in the future by accepting optional "UnitTestOptions" 
argument. "test" helper was also removed and replaced by
overloaded version of "unitTest" that takes only function argument.

"UnitTestOptions" currently supports "perms" and "skip"
options, where former works exactly as first argument to "testPerm"
did, while the latter allows to conditionally skip tests.
2020-03-04 17:31:14 +01:00

43 lines
1.1 KiB
TypeScript

import {
assert,
assertEquals,
assertMatch,
unitTest,
unreachable
} from "./test_util.ts";
const readErrorStackPattern = new RegExp(
`^.*
at unwrapResponse \\(.*dispatch_minimal\\.ts:.*\\)
at Object.sendAsyncMinimal \\(.*dispatch_minimal\\.ts:.*\\)
at async Object\\.read \\(.*files\\.ts:.*\\).*$`,
"ms"
);
unitTest(async function sendAsyncStackTrace(): Promise<void> {
const buf = new Uint8Array(10);
const rid = 10;
try {
await Deno.read(rid, buf);
unreachable();
} catch (error) {
assertMatch(error.stack, readErrorStackPattern);
}
});
unitTest(async function malformedMinimalControlBuffer(): Promise<void> {
// @ts-ignore
const readOpId = Deno.core.ops()["op_read"];
// @ts-ignore
const res = Deno.core.send(readOpId, new Uint8Array([1, 2, 3, 4, 5]));
const header = res.slice(0, 12);
const buf32 = new Int32Array(
header.buffer,
header.byteOffset,
header.byteLength / 4
);
const arg = buf32[1];
const message = new TextDecoder().decode(res.slice(12)).trim();
assert(arg < 0);
assertEquals(message, "Unparsable control buffer");
});