agent tracker + tmux update

agent-tracker/cmd/agent/scroll_test.go

@@ -0,0 +1,123 @@
+package main
+
+import (
+	"fmt"
+	"testing"
+	"time"
+)
+
+func TestStableListOffsetKeepsViewportStableWhenReversing(t *testing.T) {
+	offset := 0
+	for _, selected := range []int{0, 1, 2, 3, 4, 5, 6, 7} {
+		offset = stableListOffset(offset, selected, 5, 20)
+	}
+	if offset != 3 {
+		t.Fatalf("expected offset 3 after scrolling down, got %d", offset)
+	}
+
+	offset = stableListOffset(offset, 6, 5, 20)
+	if offset != 3 {
+		t.Fatalf("expected offset to stay 3 when reversing inside viewport, got %d", offset)
+	}
+
+	offset = stableListOffset(offset, 2, 5, 20)
+	if offset != 2 {
+		t.Fatalf("expected offset to move only once selection crosses the top edge, got %d", offset)
+	}
+}
+
+func TestActivityMonitorViewportDoesNotJumpWhenReversing(t *testing.T) {
+	m := newActivityMonitorModel("@1", false)
+	m.processes = map[int]*activityProcess{}
+	for i := 0; i < 20; i++ {
+		pid := 100 + i
+		m.rows = append(m.rows, activityRow{PID: pid})
+		m.processes[pid] = &activityProcess{
+			PID:          pid,
+			CPU:          1,
+			ResidentMB:   10,
+			Command:      fmt.Sprintf("proc-%d", i),
+			ShortCommand: fmt.Sprintf("proc-%d", i),
+		}
+	}
+	m.selectedRow = 0
+	m.selectedPID = m.rows[0].PID
+
+	_ = m.renderTable(80, 6)
+	for i := 0; i < 7; i++ {
+		m.moveSelection(1)
+		_ = m.renderTable(80, 6)
+	}
+	if m.rowOffset != 3 {
+		t.Fatalf("expected activity monitor offset 3 after scrolling down, got %d", m.rowOffset)
+	}
+
+	m.moveSelection(-1)
+	_ = m.renderTable(80, 6)
+	if m.rowOffset != 3 {
+		t.Fatalf("expected activity monitor offset to stay 3 when reversing inside viewport, got %d", m.rowOffset)
+	}
+}
+
+func TestTodoPanelViewportDoesNotJumpWhenReversing(t *testing.T) {
+	home := t.TempDir()
+	windowItems := make([]tmuxTodoItem, 0, 20)
+	for i := 0; i < 20; i++ {
+		windowItems = append(windowItems, tmuxTodoItem{Title: fmt.Sprintf("window %d", i), Priority: 1, CreatedAt: time.Now()})
+	}
+	writeTestTodoStore(t, home, &tmuxTodoStore{
+		Version: tmuxTodoStoreVersion,
+		Windows: map[string][]tmuxTodoItem{"@1": windowItems},
+	})
+
+	m, err := newTodoPanelModel("$1", "@1")
+	if err != nil {
+		t.Fatalf("new todo panel model: %v", err)
+	}
+
+	_ = m.renderColumn(todoScopeWindow, 40, 7)
+	for i := 0; i < 7; i++ {
+		m.moveSelection(1)
+		_ = m.renderColumn(todoScopeWindow, 40, 7)
+	}
+	if m.windowOffset != 3 {
+		t.Fatalf("expected todo panel offset 3 after scrolling down, got %d", m.windowOffset)
+	}
+
+	m.moveSelection(-1)
+	_ = m.renderColumn(todoScopeWindow, 40, 7)
+	if m.windowOffset != 3 {
+		t.Fatalf("expected todo panel offset to stay 3 when reversing inside viewport, got %d", m.windowOffset)
+	}
+}
+
+func TestPaletteViewportDoesNotJumpWhenReversing(t *testing.T) {
+	todos := make([]todoItem, 0, 10)
+	for i := 0; i < 10; i++ {
+		todos = append(todos, todoItem{Title: fmt.Sprintf("todo %d", i)})
+	}
+	runtime := &paletteRuntime{
+		agentID: "agent-1",
+		record: &agentRecord{
+			ID:        "agent-1",
+			Dashboard: dashboardDoc{Todos: todos},
+		},
+	}
+	m := newPaletteModel(runtime, paletteUIState{})
+	styles := newPaletteStyles()
+
+	_ = m.renderListView(styles, 96, 20)
+	for i := 0; i < 5; i++ {
+		m.state.Selected++
+		_ = m.renderListView(styles, 96, 20)
+	}
+	if m.state.ActionOffset != 3 {
+		t.Fatalf("expected palette offset 3 after scrolling down, got %d", m.state.ActionOffset)
+	}
+
+	m.state.Selected--
+	_ = m.renderListView(styles, 96, 20)
+	if m.state.ActionOffset != 3 {
+		t.Fatalf("expected palette offset to stay 3 when reversing inside viewport, got %d", m.state.ActionOffset)
+	}
+}