Files
tapir/internal/web/visual_theme_test.go
mathiasandClaude Opus 4.8 64e3368f5f
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feat(web): charm-reader visual refresh with light/dark theme toggle (ADR-032, #17)
The UI read flat and boring. Reskin to one charm/TUI-inspired layout in two
palettes (CSS custom properties): a warm "reader" light theme (sketch B) and a
"cozy terminal" dark theme (sketch C).

- Palette chosen in cascade order: :root light default; an OS-preference dark
  block scoped to :root:not([data-theme]) so it applies only absent an explicit
  choice; and :root[data-theme="dark"|"light"] set by a header toggle that
  outranks the media query by specificity and persists in localStorage (guarded,
  degrades to OS default). A <head> init script applies the stored choice before
  paint, so no flash of the wrong palette.
- Charm touches via existing classes (no templ structure churn): monospace meta
  lines, accent uppercase section dividers with a trailing rule, pill buttons, a
  lifted/accent-edged expanded card.
- Error/danger shades become --err-* tokens so they follow the theme, replacing
  three per-block prefers-color-scheme dark overrides.
- Theme toggle wired into Layout and PublicLayout headers.

BDD: docs/use-cases/visual_theme.feature un-pended, mapped in scenarioCoverage.
TDD: internal/web/visual_theme_test.go (palettes, OS default, persisted toggle,
expanded-card embed). Verified light+dark on list/reader/welcome via web-shot.
Sketches kept as the design record. ui-spec.md as-built row added.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-12 12:54:06 +02:00

67 lines
2.4 KiB
Go

package web_test
import (
"context"
"net/http"
"net/http/httptest"
"strings"
"testing"
"time"
"github.com/stretchr/testify/require"
)
// page renders any GET path's full HTML (helper for theme/structure assertions).
func page(t *testing.T, app interface {
Router() http.Handler
}, path string) string {
t.Helper()
rec := httptest.NewRecorder()
app.Router().ServeHTTP(rec, httptest.NewRequest(http.MethodGet, path, nil))
return rec.Body.String()
}
// TestThemeHasLightAndDarkPalettes: one layout, two palettes via CSS variables —
// a root light palette and a data-theme="dark" dark palette (ADR-032).
func TestThemeHasLightAndDarkPalettes(t *testing.T) {
app := newApp(t)
resetDB(t, rawPool(t))
html := page(t, app, "/welcome") // public, no DB needed
require.Contains(t, html, ":root", "light palette on the root")
require.Contains(t, html, `[data-theme="dark"]`, "explicit dark palette override for the toggle")
}
// TestThemeFollowsOSPreference: with no stored choice, the OS preference applies
// the dark palette automatically.
func TestThemeFollowsOSPreference(t *testing.T) {
app := newApp(t)
html := page(t, app, "/welcome")
require.Contains(t, html, "prefers-color-scheme: dark", "OS-preference dark default")
}
// TestThemeTogglePersists: every page carries a theme toggle control and a small
// script that flips data-theme and persists the choice.
func TestThemeTogglePersists(t *testing.T) {
app := newApp(t)
html := page(t, app, "/welcome")
require.Contains(t, html, "theme-toggle", "a theme toggle control")
require.Contains(t, html, "localStorage", "the choice is persisted")
require.Contains(t, html, "data-theme", "the toggle flips data-theme")
}
// TestExpandedCardEmbedsVideo: expanding a summarized card with a valid provider id
// includes the embedded video player (ADR-031/032).
func TestExpandedCardEmbedsVideo(t *testing.T) {
ctx := context.Background()
app := newApp(t)
p := rawPool(t)
resetDB(t, p)
require.NoError(t, deliver(ctx, app, videoX, "summary text"))
seedVideo(t, p, videoX, "X Title", "https://x", time.Time{})
html := body(t, do(t, app, httptest.NewRequest(http.MethodGet, "/v/"+videoX+"/expand", nil)))
require.Contains(t, html, "<iframe", "expanded card embeds a player")
require.True(t, strings.Contains(html, "youtube.com/embed") || strings.Contains(html, "youtube-nocookie.com/embed"),
"the embed is the YouTube player")
}