1 files changed, 128 insertions, 0 deletions
diff --git a/test/js/node/process/process-stdio.test.ts b/test/js/node/process/process-stdio.test.ts
new file mode 100644
index 000000000..463ab5fda
--- /dev/null
+++ b/test/js/node/process/process-stdio.test.ts
@@ -0,0 +1,128 @@
+import { spawn, spawnSync } from "bun";
+import { describe, expect, it, test } from "bun:test";
+import { bunExe } from "harness";
+import { isatty } from "tty";
+
+test("process.stdin", () => {
+  expect(process.stdin).toBeDefined();
+  expect(process.stdout.isTTY).toBe(isatty(0));
+  expect(process.stdin.on("close", function () {})).toBe(process.stdin);
+  expect(process.stdin.once("end", function () {})).toBe(process.stdin);
+});
+
+test("process.stdin - read", async () => {
+  const { stdin, stdout } = spawn({
+    cmd: [bunExe(), import.meta.dir + "/process-stdin-echo.js"],
+    stdout: "pipe",
+    stdin: "pipe",
+    stderr: null,
+    env: {
+      ...process.env,
+      BUN_DEBUG_QUIET_LOGS: "1",
+    },
+  });
+  expect(stdin).toBeDefined();
+  expect(stdout).toBeDefined();
+  var lines = ["Get Emoji", "— All Emojis to ✂️ Copy and 📋 Paste", "👌", ""];
+  for (let i = 0; i < lines.length; i++) {
+    const line = lines[i];
+    setTimeout(() => {
+      if (line) {
+        stdin?.write(line + "\n");
+        stdin?.flush();
+      } else {
+        stdin?.end();
+      }
+    }, i * 200);
+  }
+  var text = await new Response(stdout).text();
+  expect(text).toBe(lines.join("\n") + "ENDED");
+});
+
+test("process.stdin - resume", async () => {
+  const { stdin, stdout } = spawn({
+    cmd: [bunExe(), import.meta.dir + "/process-stdin-echo.js", "resume"],
+    stdout: "pipe",
+    stdin: "pipe",
+    stderr: null,
+    env: {
+      ...process.env,
+      BUN_DEBUG_QUIET_LOGS: "1",
+    },
+  });
+  expect(stdin).toBeDefined();
+  expect(stdout).toBeDefined();
+  var lines = ["Get Emoji", "— All Emojis to ✂️ Copy and 📋 Paste", "👌", ""];
+  for (let i = 0; i < lines.length; i++) {
+    const line = lines[i];
+    setTimeout(() => {
+      if (line) {
+        stdin?.write(line + "\n");
+        stdin?.flush();
+      } else {
+        stdin?.end();
+      }
+    }, i * 200);
+  }
+  var text = await new Response(stdout).text();
+  expect(text).toBe("RESUMED" + lines.join("\n") + "ENDED");
+});
+
+test("process.stdout", () => {
+  expect(process.stdout).toBeDefined();
+  expect(process.stdout.isTTY).toBe(isatty(1));
+});
+
+test("process.stderr", () => {
+  expect(process.stderr).toBeDefined();
+  expect(process.stderr.isTTY).toBe(isatty(2));
+});
+
+test("process.stdout - write", () => {
+  const { stdout } = spawnSync({
+    cmd: [bunExe(), import.meta.dir + "/stdio-test-instance.js"],
+    stdout: "pipe",
+    stdin: null,
+    stderr: null,
+    env: {
+      ...process.env,
+      BUN_DEBUG_QUIET_LOGS: "1",
+    },
+  });
+
+  expect(stdout?.toString()).toBe(`hello worldhello again|😋 Get Emoji — All Emojis to ✂️ Copy and 📋 Paste 👌`);
+});
+
+test("process.stdout - write a lot (string)", () => {
+  const { stdout } = spawnSync({
+    cmd: [bunExe(), import.meta.dir + "/stdio-test-instance-a-lot.js"],
+    stdout: "pipe",
+    stdin: null,
+    stderr: null,
+    env: {
+      ...process.env,
+      BUN_DEBUG_QUIET_LOGS: "1",
+      TEST_STDIO_STRING: "1",
+    },
+  });
+
+  expect(stdout?.toString()).toBe(
+    `hello worldhello again|😋 Get Emoji — All Emojis to ✂️ Copy and 📋 Paste 👌`.repeat(9999),
+  );
+});
+
+test("process.stdout - write a lot (bytes)", () => {
+  const { stdout } = spawnSync({
+    cmd: [bunExe(), import.meta.dir + "/stdio-test-instance-a-lot.js"],
+    stdout: "pipe",
+    stdin: null,
+    stderr: null,
+    env: {
+      ...process.env,
+      BUN_DEBUG_QUIET_LOGS: "1",
+    },
+  });
+  expect(stdout?.toString()).toBe(
+    `hello worldhello again|😋 Get Emoji — All Emojis to ✂️ Copy and 📋 Paste 👌`.repeat(9999),
+  );
+});