Artifact [29682d2d71]

Artifact 29682d2d7160a909c5cacd43e99d689a3d25a5220296cc415224896f4382ad40:

• File internal/web/sheet_test.go — part of check-in [eb4793ee8e] at 2026-08-31 15:49:44 on branch trunk — serve the stylesheet instead of inlining it in every page

  112,118 bytes of <style> rode on every response — 40% of a 309,584-byte timeline page, byte-identical each time and uncacheable because it had no URL, while the JS assets already carried Cache-Control. Now one hashed asset served immutable: a rule change mints a new URL, so a stale cache is impossible without anyone revalidating. (user: quarry, size: 1777) [annotate] [blame] [check-ins using]

package web

import (
	"strings"
	"testing"
)

// The stylesheet is served, not inlined. It used to be 112,118 bytes of
// <style> in every response — 40% of a 309,584-byte timeline page,
// byte-identical each time and uncacheable because it had no URL.
func TestSheetIsLinkedNotInlined(t *testing.T) {
	if strings.Contains(baseHTML, "<style>") {
		t.Error("the page still inlines a stylesheet")
	}
	if !strings.Contains(baseHTML, `rel="stylesheet"`) {
		t.Error("the page does not link a stylesheet")
	}
	if len(sheet) < 50_000 {
		t.Errorf("the sheet is %d bytes; the rules did not come with it", len(sheet))
	}
}

// Both themes have to survive being moved out of the page — the whole
// two-theme story lives in this one file, and chroma's half of it is
// generated at startup rather than written down.
func TestSheetCarriesBothThemes(t *testing.T) {
	for _, want := range []string{
		"prefers-color-scheme: dark",
		`:root[data-theme="dark"]`,
		"--fg:", "--bg:", "--accent:",
		".chroma",
	} {
		if !strings.Contains(sheet, want) {
			t.Errorf("the sheet is missing %q", want)
		}
	}
}

// The URL carries a content hash so it can be served immutable: a rule
// change mints a new URL rather than asking anyone to revalidate.
func TestSheetURLIsContentAddressed(t *testing.T) {
	if !strings.HasPrefix(sheetURL, "/assets/quarry.") || !strings.HasSuffix(sheetURL, ".css") {
		t.Fatalf("sheetURL = %q", sheetURL)
	}
	if h := sheetHash(); !strings.Contains(sheetURL, h) {
		t.Errorf("sheetURL %q does not carry the hash %q", sheetURL, h)
	}
	// Same content, same hash — the URL must be stable across a
	// restart or every deploy busts every reader's cache for nothing.
	if sheetHash() != sheetHash() {
		t.Error("the hash is not stable for identical content")
	}
}