[bunx] fix version parsing (#1937)

1 files changed, 64 insertions, 0 deletions

diff --git a/test/bun.js/install/bunx.test.ts b/test/bun.js/install/bunx.test.ts
new file mode 100644
index 000000000..95fe3b2b9
--- /dev/null
+++ b/test/bun.js/install/bunx.test.ts
@@ -0,0 +1,64 @@
+import { spawn } from "bun";
+import {
+  afterEach,
+  beforeEach,
+  expect,
+  it,
+} from "bun:test";
+import { bunExe } from "bunExe";
+import { bunEnv as env } from "bunEnv";
+import { realpathSync } from "fs";
+import { mkdtemp, rm } from "fs/promises";
+import { tmpdir } from "os";
+import { join } from "path";
+
+let x_dir;
+
+beforeEach(async () => {
+  x_dir = realpathSync(await mkdtemp(join(tmpdir(), "bun-install.test")));
+});
+afterEach(async () => {
+  await rm(x_dir, { force: true, recursive: true });
+});
+
+it("should install and run default (latest) version", async () => {
+  const { stdout, stderr, exited } = spawn({
+    cmd: [bunExe(), "x", "uglify-js", "--compress"],
+    cwd: x_dir,
+    stdout: null,
+    stdin: new TextEncoder().encode("console.log(6 * 7);"),
+    stderr: "pipe",
+    env,
+  });
+  expect(stderr).toBeDefined();
+  const err = await new Response(stderr).text();
+  expect(err).not.toContain("error");
+  expect(stdout).toBeDefined();
+  const out = await new Response(stdout).text();
+  expect(out.split(/\r?\n/)).toEqual([
+    "console.log(42);",
+    "",
+  ]);
+  expect(await exited).toBe(0);
+});
+
+it("should install and run specified version", async () => {
+  const { stdout, stderr, exited } = spawn({
+    cmd: [bunExe(), "x", "uglify-js@3.14.1", "-v"],
+    cwd: x_dir,
+    stdout: null,
+    stdin: "pipe",
+    stderr: "pipe",
+    env,
+  });
+  expect(stderr).toBeDefined();
+  const err = await new Response(stderr).text();
+  expect(err).not.toContain("error");
+  expect(stdout).toBeDefined();
+  const out = await new Response(stdout).text();
+  expect(out.split(/\r?\n/)).toEqual([
+    "uglify-js 3.14.1",
+    "",
+  ]);
+  expect(await exited).toBe(0);
+});