feat(ui) Make useAlternateBuffer the default (#12976)

integration-tests/extensions-reload.test.ts

@@ -84,8 +84,11 @@ describe('extension reloading', () => {
       await run.expectText('- hello');
 
       // Update the extension, expect the list to update, and mcp servers as well.
-      await run.sendText('/extensions update test-extension');
-      await run.type('\r');
+      await run.sendKeys('/extensions update test-extension');
+      await run.expectText('/extensions update test-extension');
+      await run.sendKeys('\r');
+      await new Promise((resolve) => setTimeout(resolve, 500));
+      await run.sendKeys('\r');
       await run.expectText(
         ` * test-server (remote): http://localhost:${portB}/mcp`,
       );

integration-tests/test-helper.ts

@@ -192,7 +192,12 @@ export class InteractiveRun {
       timeout,
       200,
     );
-    expect(found, `Did not find expected text: "${text}"`).toBe(true);
+    expect(
+      found,
+      `Did not find expected text: "${text}". Output was:\n${stripAnsi(
+        this.output,
+      )}`,
+    ).toBe(true);
   }
 
   // This types slowly to make sure command is correct, but only work for short
@@ -1004,7 +1009,7 @@ export class TestRig {
     const options: pty.IPtyForkOptions = {
       name: 'xterm-color',
       cols: 80,
-      rows: 24,
+      rows: 80,
       cwd: this.testDir!,
       env: Object.fromEntries(
         Object.entries(env).filter(([, v]) => v !== undefined),