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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import {
assert,
assertEquals,
assertRejects,
assertThrows,
pathToAbsoluteFileUrl,
unreachable,
} from "./test_util.ts";
Deno.test({ permissions: { read: true } }, function readFileSyncSuccess() {
const data = Deno.readFileSync("tests/testdata/assets/fixture.json");
assert(data.byteLength > 0);
const decoder = new TextDecoder("utf-8");
const json = decoder.decode(data);
const pkg = JSON.parse(json);
assertEquals(pkg.name, "deno");
});
Deno.test({ permissions: { read: true } }, function readFileSyncUrl() {
const data = Deno.readFileSync(
pathToAbsoluteFileUrl("tests/testdata/assets/fixture.json"),
);
assert(data.byteLength > 0);
const decoder = new TextDecoder("utf-8");
const json = decoder.decode(data);
const pkg = JSON.parse(json);
assertEquals(pkg.name, "deno");
});
Deno.test({ permissions: { read: false } }, function readFileSyncPerm() {
assertThrows(() => {
Deno.readFileSync("tests/testdata/assets/fixture.json");
}, Deno.errors.NotCapable);
});
Deno.test({ permissions: { read: true } }, function readFileSyncNotFound() {
assertThrows(() => {
Deno.readFileSync("bad_filename");
}, Deno.errors.NotFound);
});
Deno.test({ permissions: { read: true } }, async function readFileUrl() {
const data = await Deno.readFile(
pathToAbsoluteFileUrl("tests/testdata/assets/fixture.json"),
);
assert(data.byteLength > 0);
const decoder = new TextDecoder("utf-8");
const json = decoder.decode(data);
const pkg = JSON.parse(json);
assertEquals(pkg.name, "deno");
});
Deno.test({ permissions: { read: true } }, async function readFileSuccess() {
const data = await Deno.readFile("tests/testdata/assets/fixture.json");
assert(data.byteLength > 0);
const decoder = new TextDecoder("utf-8");
const json = decoder.decode(data);
const pkg = JSON.parse(json);
assertEquals(pkg.name, "deno");
});
Deno.test({ permissions: { read: false } }, async function readFilePerm() {
await assertRejects(async () => {
await Deno.readFile("tests/testdata/assets/fixture.json");
}, Deno.errors.NotCapable);
});
Deno.test({ permissions: { read: true } }, function readFileSyncLoop() {
for (let i = 0; i < 256; i++) {
Deno.readFileSync("tests/testdata/assets/fixture.json");
}
});
Deno.test(
{ permissions: { read: true } },
async function readFileDoesNotLeakResources() {
await assertRejects(async () => await Deno.readFile("cli"));
},
);
Deno.test(
{ permissions: { read: true } },
function readFileSyncDoesNotLeakResources() {
assertThrows(() => Deno.readFileSync("cli"));
},
);
Deno.test(
{ permissions: { read: true } },
async function readFileWithAbortSignal() {
const ac = new AbortController();
queueMicrotask(() => ac.abort());
const error = await assertRejects(
async () => {
await Deno.readFile("tests/testdata/assets/fixture.json", {
signal: ac.signal,
});
},
);
assert(error instanceof DOMException);
assertEquals(error.name, "AbortError");
},
);
Deno.test(
{ permissions: { read: true } },
async function readFileWithAbortSignalReason() {
const ac = new AbortController();
const abortReason = new Error();
queueMicrotask(() => ac.abort(abortReason));
const error = await assertRejects(
async () => {
await Deno.readFile("tests/testdata/assets/fixture.json", {
signal: ac.signal,
});
},
);
assertEquals(error, abortReason);
},
);
Deno.test(
{ permissions: { read: true } },
async function readFileWithAbortSignalPrimitiveReason() {
const ac = new AbortController();
queueMicrotask(() => ac.abort("Some string"));
try {
await Deno.readFile("tests/testdata/assets/fixture.json", {
signal: ac.signal,
});
unreachable();
} catch (e) {
assertEquals(e, "Some string");
}
},
);
// Test that AbortController's cancel handle is cleaned-up correctly, and do not leak resources.
Deno.test(
{ permissions: { read: true } },
async function readFileWithAbortSignalNotCalled() {
const ac = new AbortController();
await Deno.readFile("tests/testdata/assets/fixture.json", {
signal: ac.signal,
});
},
);
Deno.test(
{ ignore: Deno.build.os !== "linux" },
async function readFileProcFs() {
const data = await Deno.readFile("/proc/self/stat");
assert(data.byteLength > 0);
},
);
Deno.test(
{ permissions: { read: true } },
async function readFileNotFoundErrorCode() {
try {
await Deno.readFile("definitely-not-found.json");
} catch (e) {
assertEquals((e as { code: string }).code, "ENOENT");
}
},
);
Deno.test(
{ permissions: { read: true } },
async function readFileIsDirectoryErrorCode() {
try {
await Deno.readFile("tests/testdata/assets/");
} catch (e) {
assertEquals((e as { code: string }).code, "EISDIR");
}
},
);
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