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picker_test.go

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package tideui

import (

"strings"

"testing"

tea "github.com/charmbracelet/bubbletea"

"github.com/charmbracelet/lipgloss"

"github.com/charmbracelet/x/ansi"

)

func TestThemePickerDefaultsAndFallbackSelection(t *testing.T) {

picker := NewThemePicker(ThemePickerOptions{InitialTheme: "missing"})

if got := picker.ConfirmedTheme().Name; got != BuiltinThemes[0].Name {

t.Fatalf("confirmed theme = %q, want %q", got, BuiltinThemes[0].Name)

}

custom := []Theme{VT100, VT52}

picker = NewThemePicker(ThemePickerOptions{Themes: custom, InitialTheme: VT52.Name})

if got := picker.PreviewTheme().Name; got != VT52.Name {

t.Fatalf("preview theme = %q, want %q", got, VT52.Name)

}

}

func TestThemePickerNavigatesWithoutWrappingAndConfirms(t *testing.T) {

picker := NewThemePicker(ThemePickerOptions{Themes: []Theme{CatppuccinMocha, Nord, Dracula}})

picker.Open(CatppuccinMocha.Name)

picker.Update(tea.KeyMsg{Type: tea.KeyUp})

if got := picker.PreviewTheme().Name; got != CatppuccinMocha.Name {

t.Fatalf("up at first theme selected %q", got)

}

picker.Update(tea.KeyMsg{Type: tea.KeyRunes, Runes: []rune("j")})

picker.Update(tea.KeyMsg{Type: tea.KeyDown})

picker.Update(tea.KeyMsg{Type: tea.KeyDown})

if got := picker.PreviewTheme().Name; got != Dracula.Name {

t.Fatalf("down selection = %q, want %q", got, Dracula.Name)

}

if got := picker.Update(tea.KeyMsg{Type: tea.KeyEnter}); got != ThemePickerConfirm {

t.Fatalf("enter action = %v, want ThemePickerConfirm", got)

}

if picker.Opened() || picker.ConfirmedTheme().Name != Dracula.Name {

t.Fatal("confirm should close picker and commit the previewed theme")

}

}

func TestThemePickerCancelRestoresConfirmedTheme(t *testing.T) {

picker := NewThemePicker(ThemePickerOptions{Themes: []Theme{CatppuccinMocha, Nord}, InitialTheme: Nord.Name})

picker.Open(Nord.Name)

picker.Update(tea.KeyMsg{Type: tea.KeyRunes, Runes: []rune("k")})

if got := picker.PreviewTheme().Name; got != CatppuccinMocha.Name {

t.Fatalf("preview theme = %q, want %q", got, CatppuccinMocha.Name)

}

if got := picker.Update(tea.KeyMsg{Type: tea.KeyEscape}); got != ThemePickerCancel {

t.Fatalf("escape action = %v, want ThemePickerCancel", got)

}

if picker.Opened() || picker.PreviewTheme().Name != Nord.Name {

t.Fatal("cancel should close picker and restore its confirmed theme")

}

}

func TestThemePickerModalUsesThemeCursorAndKeepsSelectionVisible(t *testing.T) {

themes := []Theme{CatppuccinMocha, Nord, Dracula, VT100, VT52}

picker := NewThemePicker(ThemePickerOptions{Themes: themes, InitialTheme: CatppuccinMocha.Name})

picker.Open(CatppuccinMocha.Name)

for range 4 {

picker.Update(tea.KeyMsg{Type: tea.KeyDown})

}

renderer := NewRenderer(VT52, StyleOptions{Density: Compact})

modal := picker.Modal(renderer, 30, 6)

plain := ansi.Strip(renderer.renderOverlay(modal, 80))

if !strings.Contains(plain, "> "+VT52.Name) {

t.Fatalf("ASCII modal does not include selected cursor and theme:\n%s", plain)

}

if strings.Contains(plain, CatppuccinMocha.Name) {

t.Fatalf("small modal should scroll past the first theme:\n%s", plain)

}

renderer = NewRenderer(CatppuccinMocha, StyleOptions{Density: Compact})

box := renderer.renderOverlay(picker.Modal(renderer, 34, 24), 80)

if !strings.Contains(ansi.Strip(box), "▶ "+VT52.Name) {

t.Fatalf("Unicode modal does not include selected cursor and theme:\n%s", ansi.Strip(box))

}

for i, line := range strings.Split(box, "\n") {

if got := lipgloss.Width(line); got != 34 {

t.Fatalf("overlay line %d width = %d, want 34", i, got)

}

}

}

func TestThemePickerSetTitle(t *testing.T) {

picker := NewThemePicker(ThemePickerOptions{Themes: []Theme{Nord, Dracula}})

renderer := NewRenderer(CatppuccinMocha, StyleOptions{})

if got := picker.Modal(renderer, 40, 12).Title; got != "THEME" {

t.Fatalf("default title = %q, want THEME", got)

}

picker.SetTitle("Theme · Weather")

if got := picker.Modal(renderer, 40, 12).Title; got != "Theme · Weather" {

t.Fatalf("title = %q, want Theme · Weather", got)

}

picker.SetTitle("")

if got := picker.Modal(renderer, 40, 12).Title; got != "THEME" {

t.Fatalf("cleared title = %q, want THEME", got)

}

}