ref: 53e30e39a6156b3182cff49af4e9375216e9df77
dir: /style/stylesheets_test.go/
package style
import (
"github.com/chris-ramon/douceur/css"
"github.com/mjl-/duit"
"github.com/psilva261/opossum/logger"
"golang.org/x/net/html"
"strings"
"testing"
)
func init() {
log.Debug = true
}
func TestColorHex(t *testing.T) {
tri, ok := colorHex("red")
if !ok {
t.Fail()
}
hri, ok := colorHex("#ff0000")
if !ok {
t.Fail()
}
if tri != hri {
t.Fatalf("tri=%x hri=%x", tri, hri)
}
if _, ok := colorHex("rgb(1,2)"); ok {
t.Fail()
}
}
func TestColorHex3(t *testing.T) {
c, ok := colorHex("#fff")
if !ok {
t.Fail()
}
if uint32(c) != 0xffffffff {
t.Errorf("c=%x", c)
}
}
func TestFetchNodeRules(t *testing.T) {
data := `<body>
<h2 id="foo">a header</h2>
<h2 id="bar">another header</h2>
<p>Some text <b>in bold</b></p>
</body>`
doc, err := html.Parse(strings.NewReader(data))
if err != nil {
t.Fail()
}
css := AddOnCSS + `
b {
width: 100px!important;
}
@media only screen and (max-width: 600px) {
body {
background-color: lightblue;
}
}
`
for _, w := range []int{400, 800} {
t.Logf("w=%v", w)
m, _, err := FetchNodeRules(doc, css, w)
if err != nil {
t.Fail()
}
t.Logf("m=%+v", m)
var b *html.Node
var body *html.Node
var f func(n *html.Node)
f = func(n *html.Node) {
switch n.Data {
case "b":
b = n
case "body":
body = n
}
for c := n.FirstChild; c != nil; c = c.NextSibling {
f(c)
}
}
f(doc)
importantFound := false
for _, r := range m[b] {
if r.Declarations[0].Important {
importantFound = true
}
}
if !importantFound {
t.Fail()
}
if w == 400 {
_ = m[body][0]
if v := m[body][0].Declarations[0].Value; v != "lightblue" {
t.Fatalf("%v", v)
}
t.Logf("%v", m[body][0].Name)
} else {
if _, ok := m[body]; ok {
t.Fatalf("body ok")
}
}
}
}
func TestFetchNodeRules2(t *testing.T) {
data := `<h2 id="outer">
<h2 id="sp1">[</h2>
<h2 id="sp2">]</h2>
</h2>`
doc, err := html.Parse(strings.NewReader(data))
if err != nil {
t.Fail()
}
m, _, err := FetchNodeRules(doc, AddOnCSS, 1024)
if err != nil {
t.Fail()
}
t.Logf("m=%+v", m)
var outer *html.Node
var sp1 *html.Node
var sp2 *html.Node
var f func(n *html.Node)
f = func(n *html.Node) {
if len(n.Attr) == 1 {
switch n.Attr[0].Val {
case "outer":
outer = n
case "sp1":
sp1 = n
case "sp2":
sp2 = n
}
}
for c := n.FirstChild; c != nil; c = c.NextSibling {
f(c)
}
}
f(doc)
/*t.Logf("outer=%+v", outer)
t.Logf("sp1=%+v", sp1)
t.Logf("sp2=%+v", sp2)*/
for _, n := range []*html.Node{outer, sp1, sp2} {
_, ok := m[n]
if !ok {
t.Errorf("not found: %+v", n)
} else {
t.Logf("success: %+v", n)
}
}
}
func TestFetchNodeMap(t *testing.T) {
data := `<p>
<h2 id="foo">a header</h2>
<h2 id="bar">another header</h2>
<p>Some text <b>in bold</b></p>
</p>`
doc, err := html.Parse(strings.NewReader(data))
if err != nil {
t.Fail()
}
m, err := FetchNodeMap(doc, AddOnCSS, 1024)
if err != nil {
t.Fail()
}
t.Logf("m=%+v", m)
}
func TestNewMapStyle(t *testing.T) {
htms := []string{
`<h2 style="color: green;">a header</h2>`,
`<h2 style="color: green">a header</h2>`,
}
for _, htm := range htms {
doc, err := html.Parse(strings.NewReader(htm))
if err != nil {
t.Fail()
}
h2 := grep(doc, "h2")
m := NewMap(h2)
if m.Declarations["color"].Value != "green" {
t.Errorf("%+v", m)
}
}
}
func grep(nn *html.Node, tag string) *html.Node {
var f func(n *html.Node) *html.Node
f = func(n *html.Node) *html.Node {
if n.Data == tag {
return n
}
for c := n.FirstChild; c != nil; c = c.NextSibling {
if m := f(c); m != nil {
return m
}
}
return nil
}
return f(nn)
}
func TestSmaller(t *testing.T) {
d := css.Declaration{
Important: false,
}
dd := css.Declaration{
Important: true,
}
if !smaller(d, dd) {
t.Fail()
}
}
func TestApplyChildStyleInherit(t *testing.T) {
parent := Map{
Declarations: make(map[string]css.Declaration),
}
parent.Declarations["height"] = css.Declaration{
Property: "height",
Value: "80px",
}
child := Map{
Declarations: make(map[string]css.Declaration),
}
res := parent.ApplyChildStyle(child, true)
if v := res.Declarations["height"].Value; v != "80px" {
t.Fatalf(v)
}
}
func TestApplyChildStyleInherit2(t *testing.T) {
parent := Map{
Declarations: make(map[string]css.Declaration),
}
child := Map{
Declarations: make(map[string]css.Declaration),
}
parent.Declarations["font-size"] = css.Declaration{
Property: "font-size",
Value: "12pt",
}
child.Declarations["font-size"] = css.Declaration{
Property: "font-size",
Value: "inherit",
}
res := parent.ApplyChildStyle(child, true)
if v := res.Declarations["font-size"].Value; v != "12pt" {
t.Fatalf(v)
}
}
func TestCalc(t *testing.T) {
tests := map[string]float64{
"calc(1px+2px)": 3.0,
"calc(1px + 2px)": 3.0,
"calc(1em+2px)": 13.0,
"calc(1em+(2px-1px))": 12.0,
"calc(1em+(2px-1.5px))": 11.5,
}
for x, px := range tests {
f, _, err := length(nil, x)
if err != nil {
t.Fatalf("%v: %v", x, err)
}
if f != px {
t.Fatalf("expected %v but got %v", px, f)
}
}
}
func TestCalc2(t *testing.T) {
fails := []string{
"calc(a+2px)",
"calc(if(1)2)",
"calc(quit)",
"calc(1;)",
"calc()",
"calc(" + strings.Repeat("1", 51) + ")",
}
for _, x := range fails {
_, _, err := length(nil, x)
if err == nil {
t.Fatalf("%v: %v", x, err)
}
}
}
func TestLength(t *testing.T) {
lpx := map[string]float64{
"auto": 0.0,
"inherit": 0.0,
"17px": 17.0,
"10em": 110.0,
"10ex": 110.0,
"10vw": 128.0,
"10vh": 108.0,
"10%": 0,
"101.6mm": 400,
}
for l, px := range lpx {
f, _, err := length(nil, l)
if err != nil {
t.Fatalf("%v: %v", l, err)
}
if f != px {
t.Fatalf("expected %v but got %v", px, f)
}
}
}
func TestTlbr(tt *testing.T) {
cases := map[string]duit.Space{
"1px 2px 3px 4px": duit.Space{1, 2, 3, 4},
"1px 2px 3px": duit.Space{1, 2, 3, 2},
"1px 2px": duit.Space{1, 2, 1, 2},
"1px": duit.Space{1, 1, 1, 1},
}
for v, exp := range cases {
m := Map{
Declarations: make(map[string]css.Declaration),
}
m.Declarations["margin"] = css.Declaration{
Property: "margin",
Value: v,
}
s, err := m.Tlbr("margin")
if err != nil {
tt.Errorf("%v", s)
}
if s != exp {
tt.Errorf("%v: %v", s, exp)
}
}
}
func TestCssVars(t *testing.T) {
data := `<body>
<h2 id="foo">a header</h2>
<h2 id="bar">another header</h2>
<p>Some text <b>in bold</b></p>
</body>`
doc, err := html.Parse(strings.NewReader(data))
if err != nil {
t.Fail()
}
css := AddOnCSS + `
:root {
--emph: red;
--h: 10px;
}
b {
color: var(--emph);
}
`
_, rv, err := FetchNodeRules(doc, css, 1280)
if err != nil {
t.Fail()
}
if len(rv) != 2 || rv["--emph"] != "red" || rv["--h"] != "10px" {
t.Fail()
}
var b *html.Node
var f func(n *html.Node)
f = func(n *html.Node) {
if n.Data == "b" {
b = n
}
for c := n.FirstChild; c != nil; c = c.NextSibling {
f(c)
}
}
f(doc)
nm, err := FetchNodeMap(doc, css, 1280)
if err != nil {
t.Fail()
}
d := nm[b]
t.Logf("d=%+v", d)
if d.Declarations["color"].Value != "red" {
t.Fail()
}
}