Merge pull request #3 from gochore/dev

feat: support NewStringElement

element.go

@@ -14,6 +14,10 @@ type Element interface {
 
 type StringElement string
 
+func NewStringElement(format string, a ...interface{}) StringElement {
+	return StringElement(fmt.Sprintf(format, a...))
+}
+
 func (e StringElement) Render(writer io.Writer, themes ...Theme) error {
 	return htmlRender(strings.NewReader(string(e)), writer, mergeThemes(themes))
 }

element_test.go

@@ -3,6 +3,7 @@ package emailt
 import (
 	"bytes"
 	"testing"
+	"time"
 )
 
 func TestStringElement_Render(t *testing.T) {
@@ -118,3 +119,31 @@ func TestTemplateElement_Render(t *testing.T) {
 		})
 	}
 }
+
+func TestNewStringElement(t *testing.T) {
+	type args struct {
+		format string
+		a      []interface{}
+	}
+	tests := []struct {
+		name string
+		args args
+		want StringElement
+	}{
+		{
+			name: "regular",
+			args: args{
+				format: "%v %v",
+				a:      []interface{}{1, time.Minute},
+			},
+			want: "1 1m0s",
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := NewStringElement(tt.args.format, tt.args.a...); got != tt.want {
+				t.Errorf("NewStringElement() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}