Function TestToolCallFlushesStreamedContent

internal/tui/tui_test.go:2495–2511

TestToolCallFlushesStreamedContent: a tool-call event ends the content phase. Whatever streamed before it is rendered and committed *now*, so the user sees styled text *before* the inline tool-call status, not all at once at turn end.

(t *testing.T)

					i = j
					break
				}
			}
			continue
		}
		b.WriteByte(s[i])
	}
	return b.String()
}

// TestStreamContentShowsLiveInViewport: a mid-turn content event populates the
// streaming buffer, promotes phase thinking→streaming, and is visible in View()
// before any EventDone: the "tokens stream immediately" promise.
func TestStreamContentShowsLiveInViewport(t *testing.T) {
	m := newTestModel(t, func(http.ResponseWriter, *http.Request) {})
	m.phase = phaseThinking
	out, _ := m.handleStream(llm.Event{Kind: llm.EventContent, Content: "hello world"})
	om := out.(Model)
	if om.phase != phaseStreaming {
		t.Fatalf("first content chunk should promote phase to streaming, got %v", om.phase)
	}