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denoland-deno/cli/tests/unit/os_test.ts

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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import {
assert,
assertEquals,
assertNotEquals,
assertThrows,
unitTest,
} from "./test_util.ts";
unitTest({ perms: { env: true } }, function envSuccess(): void {
Deno.env.set("TEST_VAR", "A");
const env = Deno.env.toObject();
Deno.env.set("TEST_VAR", "B");
assertEquals(env["TEST_VAR"], "A");
assertNotEquals(Deno.env.get("TEST_VAR"), env["TEST_VAR"]);
});
unitTest({ perms: { env: true } }, function envNotFound(): void {
const r = Deno.env.get("env_var_does_not_exist!");
assertEquals(r, undefined);
});
unitTest({ perms: { env: true } }, function deleteEnv(): void {
Deno.env.set("TEST_VAR", "A");
assertEquals(Deno.env.get("TEST_VAR"), "A");
assertEquals(Deno.env.delete("TEST_VAR"), undefined);
assertEquals(Deno.env.get("TEST_VAR"), undefined);
});
unitTest(function envPermissionDenied1(): void {
assertThrows(() => {
Deno.env.toObject();
}, Deno.errors.PermissionDenied);
});
unitTest(function envPermissionDenied2(): void {
assertThrows(() => {
Deno.env.get("PATH");
}, Deno.errors.PermissionDenied);
});
// This test verifies that on Windows, environment variables are
// case-insensitive. Case normalization needs be done using the collation
// that Windows uses, rather than naively using String.toLowerCase().
unitTest(
{
ignore: Deno.build.os !== "windows",
perms: { read: true, env: true, run: true },
},
async function envCaseInsensitive() {
// Utility function that runs a Deno subprocess with the environment
// specified in `inputEnv`. The subprocess reads the environment variables
// which are in the keys of `expectedEnv` and writes them to stdout as JSON.
// It is then verified that these match with the values of `expectedEnv`.
const checkChildEnv = async (
inputEnv: Record<string, string>,
expectedEnv: Record<string, string>,
): Promise<void> => {
const src = `
console.log(
${JSON.stringify(Object.keys(expectedEnv))}.map(k => Deno.env.get(k))
)`;
const proc = Deno.run({
cmd: [Deno.execPath(), "eval", src],
env: { ...inputEnv, NO_COLOR: "1" },
stdout: "piped",
});
const status = await proc.status();
assertEquals(status.success, true);
const expectedValues = Object.values(expectedEnv);
const actualValues = JSON.parse(
new TextDecoder().decode(await proc.output()),
);
assertEquals(actualValues, expectedValues);
proc.close();
};
assertEquals(Deno.env.get("path"), Deno.env.get("PATH"));
assertEquals(Deno.env.get("Path"), Deno.env.get("PATH"));
// Check 'foo', 'Foo' and 'Foo' are case folded.
await checkChildEnv({ foo: "X" }, { foo: "X", Foo: "X", FOO: "X" });
// Check that 'µ' and 'Μ' are not case folded.
const lc1 = "µ";
const uc1 = lc1.toUpperCase();
assertNotEquals(lc1, uc1);
await checkChildEnv(
{ [lc1]: "mu", [uc1]: "MU" },
{ [lc1]: "mu", [uc1]: "MU" },
);
// Check that 'dž' and 'DŽ' are folded, but 'Dž' is preserved.
const c2 = "Dž";
const lc2 = c2.toLowerCase();
const uc2 = c2.toUpperCase();
assertNotEquals(c2, lc2);
assertNotEquals(c2, uc2);
await checkChildEnv(
{ [c2]: "Dz", [lc2]: "dz" },
{ [c2]: "Dz", [lc2]: "dz", [uc2]: "dz" },
);
await checkChildEnv(
{ [c2]: "Dz", [uc2]: "DZ" },
{ [c2]: "Dz", [uc2]: "DZ", [lc2]: "DZ" },
);
},
);
unitTest(function osPid(): void {
assert(Deno.pid > 0);
});
unitTest(function osPpid(): void {
assert(Deno.ppid > 0);
});
unitTest(
{ perms: { run: true, read: true } },
async function osPpidIsEqualToPidOfParentProcess(): Promise<void> {
const decoder = new TextDecoder();
const process = Deno.run({
cmd: [Deno.execPath(), "eval", "-p", "--unstable", "Deno.ppid"],
stdout: "piped",
env: { NO_COLOR: "true" },
});
const output = await process.output();
process.close();
const expected = Deno.pid;
const actual = parseInt(decoder.decode(output));
assertEquals(actual, expected);
},
);
unitTest({ perms: { read: true } }, function execPath(): void {
assertNotEquals(Deno.execPath(), "");
});
unitTest({ perms: { read: false } }, function execPathPerm(): void {
assertThrows(
() => {
Deno.execPath();
},
Deno.errors.PermissionDenied,
"read access to <exec_path>, run again with the --allow-read flag",
);
});
unitTest({ perms: { env: true } }, function loadavgSuccess(): void {
const load = Deno.loadavg();
assertEquals(load.length, 3);
});
unitTest({ perms: { env: false } }, function loadavgPerm(): void {
assertThrows(() => {
Deno.loadavg();
}, Deno.errors.PermissionDenied);
});
unitTest({ perms: { env: true } }, function hostnameDir(): void {
assertNotEquals(Deno.hostname(), "");
});
unitTest({ perms: { env: false } }, function hostnamePerm(): void {
assertThrows(() => {
Deno.hostname();
}, Deno.errors.PermissionDenied);
});
unitTest({ perms: { env: true } }, function releaseDir(): void {
assertNotEquals(Deno.osRelease(), "");
});
unitTest({ perms: { env: false } }, function releasePerm(): void {
assertThrows(() => {
Deno.osRelease();
}, Deno.errors.PermissionDenied);
});
unitTest({ perms: { env: true } }, function systemMemoryInfo(): void {
const info = Deno.systemMemoryInfo();
assert(info.total >= 0);
assert(info.free >= 0);
assert(info.available >= 0);
assert(info.buffers >= 0);
assert(info.cached >= 0);
assert(info.swapTotal >= 0);
assert(info.swapFree >= 0);
});