package check

import (
	"regexp"
	"strings"
	"testing"
)

// The button sample is the set that behaves differently, not every
// combination: four variants at the default size, the three sizes on
// primary, each labelled with its size, a link wearing the look, a
// full-width one and a disabled one. The busy state is form-foot's idle/working pair, so it is not
// drawn twice. A combination missing here is a size or variant a
// reader of the gallery never sees on a button.
func TestTheButtonSampleShowsEachDistinctBehaviour(t *testing.T) {
	sample := idiomMarkup(t, "button")
	for _, want := range []string{
		`<button rst-btn type="button">`,
		`<button rst-btn="primary" type="button">`,
		`<button rst-btn="ghost" type="button">`,
		`<button rst-btn="danger" type="button">`,
		`<button rst-btn="primary sm" type="button">`,
		`<button rst-btn="primary lg" type="button">`,
		`<a rst-btn href="`,
		`<button rst-btn="primary block" type="button">`,
		`<button rst-btn type="button" disabled>`,
	} {
		if !strings.Contains(sample, want) {
			t.Errorf("the button sample has no %s", want)
		}
	}
	if n := len(regexp.MustCompile(`\srst-btn[\s=>]`).FindAllString(sample, -1)); n != 10 {
		t.Errorf("the button sample draws %d buttons, want the 10 that behave differently", n)
	}
	// The size row names each size on its button, small to large, so a
	// reader comparing them does not have to guess which is which: the
	// row used to be three buttons all reading "Save".
	const sizes = `<p><button rst-btn="primary sm" type="button">Small</button> <button rst-btn="primary" type="button">Default</button> <button rst-btn="primary lg" type="button">Large</button> <a rst-btn href="/orders">View orders</a></p>`
	if !strings.Contains(sample, sizes) {
		t.Errorf("the button sample has no size row %s", sizes)
	}
	if strings.Contains(sample, "aria-busy") || strings.Contains(sample, "rst-spin") {
		t.Error("the button sample draws the busy state, which form-foot's pair already shows")
	}
}