Function TestRenderMainScreen_LineCount

app/render_test.go:14–60

(t *testing.T)

)

func TestRenderMainScreen_LineCount(t *testing.T) {
	appui.InitStyles()
	m := newTestModel()
	m.header = appui.NewHeaderModel(m.daemon, m.width)

	containers := m.daemon.Containers(nil, docker.SortByContainerID)

	result, _ := m.Update(containersLoadedMsg{containers: containers})
	m = result.(model)

	hdrLines := strings.Split(m.header.View(), "\n")
	sepLines := strings.Split(m.header.SeparatorLine(""), "\n")
	t.Logf("Header lines: %d, Separator lines: %d", len(hdrLines), len(sepLines))

	contentLines := strings.Split(m.containers.View(), "\n")
	t.Logf("Content lines: %d (expected contentHeight=%d)", len(contentLines), m.contentHeight())

	v := m.renderMainScreen()
	lines := strings.Split(v, "\n")
	t.Logf("Terminal: %dx%d, Total lines: %d (expected %d)", m.width, m.height, len(lines), m.height)

	dataRows := 0
	for _, l := range contentLines {
		if strings.Contains(l, "▶") || strings.Contains(l, "■") {
			dataRows++
		}
	}
	t.Logf("Data rows: %d", dataRows)

	if len(lines) != m.height {
		t.Errorf("Expected %d lines, got %d", m.height, len(lines))
	}

	result, _ = m.Update(tea.KeyPressMsg{Code: tea.KeyDown})
	m = result.(model)
	contentLines2 := strings.Split(m.containers.View(), "\n")
	dataRows2 := 0
	for _, l := range contentLines2 {
		if strings.Contains(l, "▶") || strings.Contains(l, "■") {
			dataRows2++
		}
	}
	t.Logf("Data rows after nav: %d", dataRows2)
	if dataRows != dataRows2 {
		t.Errorf("Data row count changed: %d -> %d", dataRows, dataRows2)
	}
}

func TestRenderMainScreen_SmallTerminal(t *testing.T) {
	// Simulate a small terminal where rows exceed viewport capacity