81 lines
2.8 KiB
Go
81 lines
2.8 KiB
Go
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package seed_test
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import (
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"strings"
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"testing"
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"github.com/urpi/go-bananas/internal/domain"
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"github.com/urpi/go-bananas/internal/seed"
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"github.com/urpi/go-bananas/internal/tokenengine"
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)
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// TestGoTellSlugsAreSeeded is the one that matters for adoption.
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//
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// go-tell's theme switcher offers cyberpunk, nordic, obsidian and terminal, and its
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// stylesheet keys on html[data-theme="<slug>"]. If any of those slugs is missing from
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// the service, selecting it sets an attribute that resolves to nothing and the
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// application falls back to whichever rule happens to match last. That is invisible in
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// a smoke test and obvious to a user, so it is asserted here.
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func TestGoTellSlugsAreSeeded(t *testing.T) {
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want := []string{"cyberpunk", "nordic", "obsidian", "terminal"}
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have := map[string]bool{}
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for _, slug := range seed.Slugs() {
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have[slug] = true
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}
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for _, slug := range want {
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if !have[slug] {
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t.Errorf("go-tell's %q palette is not seeded, so selecting it would do nothing", slug)
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}
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}
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}
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// TestEveryConsolidatedPaletteResolvesInBothAppearances is the property the contract
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// depends on, and it is expressed through the engine rather than through the token
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// document's shape.
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//
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// The shape is deliberately not the assertion. In this schema the base document *is*
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// the light scheme and `$appearances` carries only the dark override, so a theme with
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// both schemes still has one key under `$appearances`. What matters is that resolving
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// a consolidated palette in each appearance yields a different background, which is
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// what makes the appearance control do anything at all.
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func TestEveryConsolidatedPaletteResolvesInBothAppearances(t *testing.T) {
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for _, def := range seed.All() {
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if !strings.Contains(def.Description, "go-") {
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continue // an original go-bananas theme, not a consolidated one
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}
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theme := def.Theme()
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light := tokenengine.Resolve(theme, domain.AppearanceLight)
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dark := tokenengine.Resolve(theme, domain.AppearanceDark)
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read := func(doc *tokenengine.Doc, path string) string {
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token, ok := doc.Lookup(path)
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if !ok {
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return ""
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}
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return token.CSS
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}
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lightBg := read(light, "color.semantic.background")
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darkBg := read(dark, "color.semantic.background")
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if lightBg == "" || darkBg == "" {
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t.Errorf("%s does not resolve a background in both appearances (light=%q dark=%q)",
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def.Slug, lightBg, darkBg)
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continue
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}
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if lightBg == darkBg {
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t.Errorf("%s resolves the same background in both appearances (%s), "+
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"so the appearance control would do nothing for it", def.Slug, lightBg)
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}
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// Text has to differ too, or a palette with a dark background and dark text
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// would pass the background check and be unreadable.
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if read(light, "color.semantic.text") == read(dark, "color.semantic.text") {
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t.Errorf("%s resolves the same text colour in both appearances", def.Slug)
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}
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}
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}
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