Add basic tests for remove command (vercel#10304)

Adds some minimal unit testing for the `remove` command. There is currently none.

.changeset/lovely-donuts-suffer.md

@@ -0,0 +1,2 @@
+---
+---

packages/cli/test/unit/commands/remove.test.ts

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+import { client } from '../../mocks/client';
+import {
+  defaultProject,
+  useProject,
+  useUnknownProject,
+} from '../../mocks/project';
+import remove from '../../../src/commands/remove';
+import { useDeployment } from '../../mocks/deployment';
+import { useUser } from '../../mocks/user';
+
+describe('remove', () => {
+  it('should error if missing deployment url', async () => {
+    client.setArgv('remove');
+    const exitCodePromise = remove(client);
+
+    await expect(client.stderr).toOutput(
+      'Error: `vercel rm` expects at least one argument'
+    );
+    await expect(exitCodePromise).resolves.toEqual(1);
+  });
+
+  it('should error without calling API for invalid names', async () => {
+    const badDeployName = '/#';
+    client.setArgv('remove', badDeployName);
+    const exitCodePromise = remove(client);
+
+    await expect(client.stderr).toOutput(
+      `Error: The provided argument "${badDeployName}" is not a valid deployment or project`
+    );
+    await expect(exitCodePromise).resolves.toEqual(1);
+  });
+
+  it('calls API to delete a project ', async () => {
+    let deleteAPIWasCalled = false;
+    const user = useUser();
+
+    const project = useProject({
+      ...defaultProject,
+      id: '123',
+    });
+
+    useUnknownProject();
+
+    const deployment = useDeployment({
+      creator: user,
+      project,
+    });
+
+    client.scenario.delete('/now/deployments/:id', (req, res) => {
+      deleteAPIWasCalled = true;
+      res.json({});
+    });
+
+    client.setArgv('remove', deployment.url, '--yes');
+    await remove(client);
+
+    expect(deleteAPIWasCalled);
+  });
+});