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hb_test.go
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hb_test.go
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package hb
import (
"fmt"
"strings"
"testing"
"github.com/stretchr/testify/assert"
)
type (
eTestCase struct {
label string
expected string
el Element
}
attrTestCase struct {
label string
expected string
attr *Attributes
}
)
func TestWriteText(t *testing.T) {
buf := strings.Builder{}
text := "Hello world"
el := Text(text)
assert.Nil(t, el.Render(&buf))
assert.Equal(t, text, buf.String())
}
func TestE(t *testing.T) {
testCases := []eTestCase{
{
label: "simple case should succeed",
expected: `<h1>Title</h1>`,
el: E("h1", nil, Text("Title")),
},
{
label: "void element should render correctly",
expected: `<img src="/img/ninja.png" alt="Ninja pic" />`,
el: E("img", Attr(`src="/img/ninja.png" alt="Ninja pic"`)),
},
{
label: "children should render correctly",
expected: `<ul class="list"><li class="item">A</li><li class="item"><button onclick="bye()">Exit</button></li></ul>`,
el: E("ul", Attr(`class="list"`),
E("li", Attr(`class="item"`), Text("A")),
E("li", Attr(`class="item"`),
E("button", Attr(`onclick="bye()"`), Text("Exit")),
),
),
},
{
label: "conditional elements should render correctly",
expected: `<div><p>Hello, world!</p></div>`,
el: E("div", nil,
If(true,
E("p", nil, Text("Hello, world!")),
E("h1", nil, Text("Hello, world!")),
),
),
},
{
label: "conditional elements should render nothing",
expected: `<div></div>`,
el: E("div", nil,
If(false, E("p", nil, Text("Hello, world!"))),
),
},
{
label: "conditional elements should render correctly",
expected: `<div><h1>Hello, world!</h1></div>`,
el: E("div", nil,
If(false,
E("p", nil, Text("Hello, world!")),
E("h1", nil, Text("Hello, world!")),
),
),
},
{
label: "conditional lazy elements should render correctly",
expected: `<div><p>Hello, world!</p></div>`,
el: E("div", nil,
When(true,
Lazy("p", nil, Text("Hello, world!")),
Lazy("h1", nil, Text("Hello, world!")),
),
),
},
{
label: "conditional lazy elements should render nothing",
expected: `<div></div>`,
el: E("div", nil,
When(false, Lazy("p", nil, Text("Hello, world!"))),
),
},
{
label: "conditional lazy elements should render correctly",
expected: `<div><h1>Hello, world!</h1></div>`,
el: E("div", nil,
When(false,
Lazy("p", nil, Text("Hello, world!")),
Lazy("h1", nil, Text("Hello, world!")),
),
),
},
{
label: "should render group correctly",
expected: `<li>A</li><li>B</li><li>C</li><li>D</li>`,
el: Group(
E("li", nil, Text("A")),
E("li", nil, Text("B")),
E("li", nil, Text("C")),
E("li", nil, Text("D")),
),
},
{
label: "empty template should render correctly",
expected: "<html><head><title>New page</title></head><body></body></html>",
el: Template(
"<html><head><title>New page</title></head><body></body></html>",
),
},
{
label: "template with children should render correctly",
expected: "<html><head><title>New page</title></head><body><ul><li>A</li><li>B</li></ul></body></html>",
el: Template(
"<html><head><title>New page</title></head><body><ul>"+SlotTag+"</ul></body></html>",
E("li", nil, Text("A")),
E("li", nil, Text("B")),
),
},
{
label: "template with children should render correctly",
expected: "<!DOCTYPE html><html></html>",
el: Template("<!DOCTYPE html>"+SlotTag, E("html", nil)),
},
{
label: "map should succeed",
expected: `<li>A</li><li>B</li>`,
el: Map([]string{"A", "B"}, func(s string) Element {
return E("li", nil, Text(s))
}),
},
}
for i, tc := range testCases {
label := fmt.Sprintf("#%v - %v", i, tc.label)
t.Run(label, func(t *testing.T) {
buf := strings.Builder{}
err := tc.el.Render(&buf)
assert.Nil(t, err)
assert.Equal(t, tc.expected, buf.String())
})
}
}
func TestAttr(t *testing.T) {
testCases := []attrTestCase{
{
label: "should render nothing",
expected: "",
attr: nil,
},
{
label: "should render nothing",
expected: "",
attr: Attr(""),
},
{
label: "should render flag",
expected: "required",
attr: Attr("required"),
},
{
label: "should render class",
expected: `class="container"`,
attr: Attr(`class="container"`),
},
{
label: "should render class",
expected: `class="container"`,
attr: Attr(`class="container"`),
},
{
label: "should render class and required and type",
expected: `class="container" required type="text"`,
attr: Attr(`class="container"`).KV("required", "", "type", "text"),
},
{
label: "should render class and required flag",
expected: `class="container" required`,
attr: Attr(`class="container"`).
Flag("required", true).
Flag("open", false),
},
{
label: "should render class and required flag",
expected: `class="container" required`,
attr: KV("class", "container").
Maybe("required", "", true).
Maybe("open", "", false),
},
{
label: "should escape sequence",
expected: `class="<>"`,
attr: KV("class", "<>"),
},
{
label: "should NOT escape sequence",
expected: `class="<>"`,
attr: Raw("class", "<>"),
},
{
label: "switch should render correctly",
expected: `type="select"`,
attr: Switch("type", 2, []string{"text", "submit", "select"}),
},
{
label: "comp should render correctly",
expected: `class="btn btn-outline"`,
attr: Comp("class", []string{"btn", "btn-outline"}),
},
}
for i, tc := range testCases {
label := fmt.Sprintf("#%v - %v", i, tc.label)
t.Run(label, func(t *testing.T) {
assert.Equal(t, tc.expected, tc.attr.String())
})
}
}
func TestCase(t *testing.T) {
t.Run("should render only correct classes", func(t *testing.T) {
attr := Attr("required").
Case("class", map[string]bool{
"container": true,
"w-50": false,
"w-full": true,
"bg-light": false,
"bg-dark": true,
}).
String()
assert.True(t, strings.Contains(attr, "container"))
assert.False(t, strings.Contains(attr, "w-50"))
assert.True(t, strings.Contains(attr, "w-full"))
assert.False(t, strings.Contains(attr, "bg-light"))
assert.True(t, strings.Contains(attr, "bg-dark"))
})
}