Files
goyco/internal/templates/template_test.go

114 lines
2.7 KiB
Go

package templates
import (
"html/template"
"path/filepath"
"strings"
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func templateFuncMap() template.FuncMap {
return template.FuncMap{
"formatTime": func(t time.Time) string {
if t.IsZero() {
return ""
}
return t.Format("02 Jan 2006 15:04")
},
"truncate": func(s string, length int) string {
if len(s) <= length {
return s
}
if length <= 3 {
return s[:length]
}
return s[:length-3] + "..."
},
"substr": func(s string, start, length int) string {
if start >= len(s) {
return ""
}
end := min(start+length, len(s))
return s[start:end]
},
"upper": strings.ToUpper,
}
}
func TestTemplateParsing(t *testing.T) {
layoutPath := filepath.Join(".", "base.gohtml")
require.FileExists(t, layoutPath, "base layout is required for all templates")
partials, err := filepath.Glob(filepath.Join(".", "partials", "*.gohtml"))
require.NoError(t, err)
pages, err := filepath.Glob(filepath.Join(".", "*.gohtml"))
require.NoError(t, err)
require.NotEmpty(t, pages, "no page templates found")
for _, page := range pages {
if filepath.Base(page) == "base.gohtml" {
continue
}
page := page
t.Run(filepath.Base(page), func(t *testing.T) {
t.Parallel()
files := append([]string{layoutPath}, partials...)
files = append(files, page)
tmpl, err := template.New(filepath.Base(page)).Funcs(templateFuncMap()).ParseFiles(files...)
require.NoError(t, err)
require.NotNil(t, tmpl.Lookup("layout"), "layout template should be available")
require.NotNil(t, tmpl.Lookup("content"), "content block should be defined by page templates")
})
}
}
func TestTemplateSyntax(t *testing.T) {
tests := []struct {
name string
template string
shouldFail bool
}{
{
name: "valid template",
template: `{{define "test"}}<h1>{{.Title}}</h1>{{end}}`,
shouldFail: false,
},
{
name: "invalid define inside content",
template: `<div>{{define "invalid"}}content{{end}}</div>{{define "test"}}<h1>{{.Title}}</h1>{{end}}`,
shouldFail: true,
},
{
name: "unclosed template tag",
template: `{{define "test"}}<h1>{{.Title}}</h1>`,
shouldFail: true,
},
{
name: "valid nested template",
template: `{{define "parent"}}<div>{{template "child" .}}</div>{{end}}{{define "child"}}<span>{{.Content}}</span>{{end}}`,
shouldFail: false,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
tmpl := template.New("test")
_, err := tmpl.Parse(tt.template)
if tt.shouldFail {
assert.Error(t, err, "Template should fail to parse")
} else {
assert.NoError(t, err, "Template should parse successfully")
}
})
}
}