package components_test
import (
"errors"
"io"
"os"
"testing"
g "alin.ovh/gomponents"
. "alin.ovh/gomponents/components"
. "alin.ovh/gomponents/html"
"alin.ovh/gomponents/internal/assert"
)
func TestHTML5(t *testing.T) {
t.Run("returns an html5 document template", func(t *testing.T) {
e := HTML5(HTML5Props{
Title: "Hat",
Description: "Love hats.",
Language: "en",
Head: []g.Node{Link(Rel("stylesheet"), Href("/hat.css"))},
Body: []g.Node{Div()},
})
assert.Equal(
t,
`Hat`,
e,
)
})
t.Run(
"returns no language, description, and extra head/body elements if empty",
func(t *testing.T) {
e := HTML5(HTML5Props{
Title: "Hat",
})
assert.Equal(
t,
`Hat`,
e,
)
},
)
t.Run("returns an html5 document template with additional HTML attributes", func(t *testing.T) {
e := HTML5(HTML5Props{
Title: "Hat",
Description: "Love hats.",
Language: "en",
Head: []g.Node{Link(Rel("stylesheet"), Href("/hat.css"))},
Body: []g.Node{Div()},
HTMLAttrs: []g.Node{Class("h-full"), ID("htmlid")},
})
assert.Equal(
t,
`Hat`,
e,
)
})
}
func TestClasses(t *testing.T) {
t.Run("given a map, returns sorted keys from the map with value true", func(t *testing.T) {
assert.Equal(t, ` class="boheme-hat hat partyhat"`, Classes{
"boheme-hat": true,
"hat": true,
"partyhat": true,
"turtlehat": false,
})
})
t.Run("renders as attribute in an element", func(t *testing.T) {
e := g.El("div", Classes{"hat": true})
assert.Equal(t, ``, e)
})
t.Run("also works with fmt", func(t *testing.T) {
a := Classes{"hat": true}
if a.String() != ` class="hat"` {
t.FailNow()
}
})
}
func ExampleClasses() {
e := g.El("div", Classes{"party-hat": true, "boring-hat": false})
_ = e.Render(os.Stdout)
// Output:
}
func hat(children ...g.Node) g.Node {
return Div(JoinAttrs("class", g.Group(children), Class("hat")))
}
func partyHat(children ...g.Node) g.Node {
return hat(ID("party-hat"), Class("party"), g.Group(children))
}
type brokenNode struct {
first bool
}
func (b *brokenNode) WriteTo(io.Writer) (int64, error) {
if !b.first {
return 0, nil
}
b.first = false
return 0, errors.New("oh no")
}
func (b *brokenNode) Render(w io.Writer) error {
_, err := b.WriteTo(w)
return err
}
func (b *brokenNode) Type() g.NodeType {
return g.AttributeType
}
func TestJoinAttrs(t *testing.T) {
t.Run("joins classes", func(t *testing.T) {
n := Div(JoinAttrs("class", Class("party"), ID("hey"), Class("hat")))
assert.Equal(t, ``, n)
})
t.Run("joins classes in groups", func(t *testing.T) {
n := partyHat(Span(ID("party-hat-text"), Class("solid"), Class("gold"), g.Text("Yo.")))
assert.Equal(t, `Yo.
`, n)
})
t.Run("does nothing if attribute not found", func(t *testing.T) {
n := Div(JoinAttrs("style", Class("party"), ID("hey"), Class("hat")))
assert.Equal(t, ``, n)
})
t.Run("ignores nodes that can't render", func(t *testing.T) {
n := Div(JoinAttrs("class", Class("party"), ID("hey"), &brokenNode{first: true}, Class("hat")))
assert.Equal(t, ``, n)
})
}
func myButton(children ...g.Node) g.Node {
return Div(JoinAttrs("class", g.Group(children), Class("button")))
}
func myPrimaryButton(text string) g.Node {
return myButton(Class("primary"), g.Text(text))
}
func ExampleJoinAttrs() {
danceButton := myPrimaryButton("Dance")
_ = danceButton.Render(os.Stdout)
// Output: Dance
}