test(terminal): cover shell integration fallback

Author: koolcandy

src/test/features/terminal/runInTerminal.unit.test.ts

@@ -56,4 +56,21 @@ suite('runInTerminal', () => {
         endListener!({ terminal, execution } as unknown as TerminalShellExecutionEndEvent);
         await runPromise;
     });
+
+    test('uses sendText when shell integration is unavailable after waiting', async () => {
+        sinon.stub(shellDetector, 'identifyTerminalShell').returns('fish');
+        const waitForShellIntegrationStub = sinon.stub(terminalUtils, 'waitForShellIntegration').resolves(false);
+        const sendText = sinon.stub();
+        const terminal = {
+            name: 'Python',
+            shellIntegration: undefined,
+            sendText,
+        } as unknown as Terminal;
+
+        const environment = createMockPythonEnvironment({ envPath: '/env/bin/python' });
+        await runInTerminal(environment, terminal, { cwd: '/workspace', args: ['main.py'] });
+
+        sinon.assert.calledOnceWithExactly(waitForShellIntegrationStub, terminal);
+        sinon.assert.calledOnceWithExactly(sendText, 'python main.py\n');
+    });
 });