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-rw-r--r--tests/unit_node/os_test.ts325
1 files changed, 325 insertions, 0 deletions
diff --git a/tests/unit_node/os_test.ts b/tests/unit_node/os_test.ts
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+++ b/tests/unit_node/os_test.ts
@@ -0,0 +1,325 @@
+// deno-lint-ignore-file no-undef
+// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
+
+import os from "node:os";
+import {
+ assert,
+ assertEquals,
+ assertNotEquals,
+ assertThrows,
+} from "@test_util/std/assert/mod.ts";
+
+Deno.test({
+ name: "build architecture is a string",
+ fn() {
+ assertEquals(typeof os.arch(), "string");
+ },
+});
+
+Deno.test({
+ name: "build architecture",
+ fn() {
+ if (Deno.build.arch == "x86_64") {
+ assertEquals(os.arch(), "x64");
+ } else if (Deno.build.arch == "aarch64") {
+ assertEquals(os.arch(), "arm64");
+ } else {
+ throw new Error("unreachable");
+ }
+ },
+});
+
+Deno.test({
+ name: "os machine (arch)",
+ fn() {
+ if (Deno.build.arch == "aarch64") {
+ assertEquals(os.machine(), "arm64");
+ } else {
+ assertEquals(os.machine(), Deno.build.arch);
+ }
+ },
+});
+
+Deno.test({
+ name: "home directory is a string",
+ fn() {
+ assertEquals(typeof os.homedir(), "string");
+ },
+});
+
+Deno.test({
+ name: "tmp directory is a string",
+ fn() {
+ assertEquals(typeof os.tmpdir(), "string");
+ },
+});
+
+Deno.test({
+ name: "hostname is a string",
+ fn() {
+ assertEquals(typeof os.hostname(), "string");
+ },
+});
+
+Deno.test({
+ name: "platform is a string",
+ fn() {
+ assertEquals(typeof os.platform(), "string");
+ },
+});
+
+Deno.test({
+ name: "release is a string",
+ fn() {
+ assertEquals(typeof os.release(), "string");
+ },
+});
+
+Deno.test({
+ name: "type is a string",
+ fn() {
+ assertEquals(typeof os.type(), "string");
+ },
+});
+
+Deno.test({
+ name: "getPriority(): PID must be a 32 bit integer",
+ fn() {
+ assertThrows(
+ () => {
+ os.getPriority(3.15);
+ },
+ Error,
+ "pid must be 'an integer'",
+ );
+ assertThrows(
+ () => {
+ os.getPriority(9999999999);
+ },
+ Error,
+ "must be >= -2147483648 && <= 2147483647",
+ );
+ },
+});
+
+Deno.test({
+ name: "setPriority(): PID must be a 32 bit integer",
+ fn() {
+ assertThrows(
+ () => {
+ os.setPriority(3.15, 0);
+ },
+ Error,
+ "pid must be 'an integer'",
+ );
+ assertThrows(
+ () => {
+ os.setPriority(9999999999, 0);
+ },
+ Error,
+ "pid must be >= -2147483648 && <= 2147483647",
+ );
+ },
+});
+
+Deno.test({
+ name: "setPriority(): priority must be an integer between -20 and 19",
+ fn() {
+ assertThrows(
+ () => {
+ os.setPriority(0, 3.15);
+ },
+ Error,
+ "priority must be 'an integer'",
+ );
+ assertThrows(
+ () => {
+ os.setPriority(0, -21);
+ },
+ Error,
+ "priority must be >= -20 && <= 19",
+ );
+ assertThrows(
+ () => {
+ os.setPriority(0, 20);
+ },
+ Error,
+ "priority must be >= -20 && <= 19",
+ );
+ assertThrows(
+ () => {
+ os.setPriority(0, 9999999999);
+ },
+ Error,
+ "priority must be >= -20 && <= 19",
+ );
+ },
+});
+
+Deno.test({
+ name:
+ "setPriority(): if only one argument specified, then this is the priority, NOT the pid",
+ fn() {
+ assertThrows(
+ () => {
+ os.setPriority(3.15);
+ },
+ Error,
+ "priority must be 'an integer'",
+ );
+ assertThrows(
+ () => {
+ os.setPriority(-21);
+ },
+ Error,
+ "priority must be >= -20 && <= 19",
+ );
+ assertThrows(
+ () => {
+ os.setPriority(20);
+ },
+ Error,
+ "priority must be >= -20 && <= 19",
+ );
+ assertThrows(
+ () => {
+ os.setPriority(9999999999);
+ },
+ Error,
+ "priority must be >= -20 && <= 19",
+ );
+ },
+});
+
+Deno.test({
+ name: "EOL is as expected",
+ fn() {
+ assert(os.EOL == "\r\n" || os.EOL == "\n");
+ },
+});
+
+Deno.test({
+ name: "Endianness is determined",
+ fn() {
+ assert(["LE", "BE"].includes(os.endianness()));
+ },
+});
+
+Deno.test({
+ name: "Load average is an array of 3 numbers",
+ fn() {
+ const result = os.loadavg();
+ assert(result.length == 3);
+ assertEquals(typeof result[0], "number");
+ assertEquals(typeof result[1], "number");
+ assertEquals(typeof result[2], "number");
+ },
+});
+
+Deno.test({
+ name: "Primitive coercion works as expected",
+ fn() {
+ assertEquals(`${os.arch}`, os.arch());
+ assertEquals(`${os.endianness}`, os.endianness());
+ assertEquals(`${os.platform}`, os.platform());
+ },
+});
+
+Deno.test({
+ name: "Total memory amount should be greater than 0",
+ fn() {
+ assert(os.totalmem() > 0);
+ },
+});
+
+Deno.test({
+ name: "Free memory amount should be greater than 0",
+ fn() {
+ assert(os.freemem() > 0);
+ },
+});
+
+Deno.test({
+ name: "Uptime should be greater than 0",
+ fn() {
+ assert(os.uptime() > 0);
+ },
+});
+
+Deno.test({
+ name: "os.cpus()",
+ fn() {
+ assertEquals(os.cpus().length, navigator.hardwareConcurrency);
+
+ for (const cpu of os.cpus()) {
+ assert(cpu.model.length > 0);
+ assert(cpu.speed >= 0);
+ assert(cpu.times.user > 0);
+ assert(cpu.times.sys > 0);
+ assert(cpu.times.idle > 0);
+ }
+ },
+});
+
+Deno.test({
+ name: "os.setPriority() & os.getPriority()",
+ // disabled because os.getPriority() doesn't work without sudo
+ ignore: true,
+ fn() {
+ const child = new Deno.Command(Deno.execPath(), {
+ args: ["eval", "while (true) { console.log('foo') }"],
+ }).spawn();
+ const originalPriority = os.getPriority(child.pid);
+ assertNotEquals(originalPriority, os.constants.priority.PRIORITY_HIGH);
+ os.setPriority(child.pid, os.constants.priority.PRIORITY_HIGH);
+ assertEquals(
+ os.getPriority(child.pid),
+ os.constants.priority.PRIORITY_HIGH,
+ );
+ os.setPriority(child.pid, originalPriority);
+ assertEquals(os.getPriority(child.pid), originalPriority);
+ child.kill();
+ },
+});
+
+Deno.test({
+ name:
+ "os.setPriority() throw os permission denied error & os.getPriority() doesn't",
+ async fn() {
+ const child = new Deno.Command(Deno.execPath(), {
+ args: ["eval", "while (true) { console.log('foo') }"],
+ }).spawn();
+ assertThrows(
+ () => os.setPriority(child.pid, os.constants.priority.PRIORITY_HIGH),
+ Deno.errors.PermissionDenied,
+ );
+ os.getPriority(child.pid);
+ child.kill();
+ await child.status;
+ },
+});
+
+// Gets the diff in log_10 scale
+function diffLog10(a: number, b: number): number {
+ return Math.abs(Math.log10(a) - Math.log10(b));
+}
+
+Deno.test({
+ name:
+ "os.freemem() is equivalent of Deno.systemMemoryInfo().free except on linux",
+ ignore: Deno.build.os === "linux",
+ fn() {
+ const diff = diffLog10(os.freemem(), Deno.systemMemoryInfo().free);
+ assert(diff < 1);
+ },
+});
+
+Deno.test({
+ name:
+ "os.freemem() is equivalent of Deno.systemMemoryInfo().available on linux",
+ ignore: Deno.build.os !== "linux",
+ fn() {
+ const diff = diffLog10(os.freemem(), Deno.systemMemoryInfo().available);
+ assert(diff < 1);
+ },
+});
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