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// Copyright 2016 The Hugo Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package strings
import (
"html/template"
"reflect"
"strings"
"testing"
)
func TestTruncate(t *testing.T) {
t.Parallel()
var err error
cases := []struct {
v1 any
v2 any
v3 any
want any
isErr bool
}{
{10, "I am a test sentence", nil, template.HTML("I am a …"), false},
{10, "", "I am a test sentence", template.HTML("I am a"), false},
{10, "", "a b c d e f g h i j k", template.HTML("a b c d e"), false},
{12, "", "<b>Should be escaped</b>", template.HTML("<b>Should be"), false},
{10, template.HTML(" <a href='#'>Read more</a>"), "I am a test sentence", template.HTML("I am a <a href='#'>Read more</a>"), false},
{20, template.HTML("I have a <a href='/markdown'>Markdown link</a> inside."), nil, template.HTML("I have a <a href='/markdown'>Markdown …</a>"), false},
{10, "IamanextremelylongwordthatjustgoesonandonandonjusttoannoyyoualmostasifIwaswritteninGermanActuallyIbettheresagermanwordforthis", nil, template.HTML("Iamanextre …"), false},
{10, template.HTML("<p>IamanextremelylongwordthatjustgoesonandonandonjusttoannoyyoualmostasifIwaswritteninGermanActuallyIbettheresagermanwordforthis</p>"), nil, template.HTML("<p>Iamanextre …</p>"), false},
{13, template.HTML("With <a href=\"/markdown\">Markdown</a> inside."), nil, template.HTML("With <a href=\"/markdown\">Markdown …</a>"), false},
{14, "Hello中国 Good 好的", nil, template.HTML("Hello中国 Good 好 …"), false},
{15, "", template.HTML("A <br> tag that's not closed"), template.HTML("A <br> tag that's"), false},
{14, template.HTML("<p>Hello中国 Good 好的</p>"), nil, template.HTML("<p>Hello中国 Good 好 …</p>"), false},
{2, template.HTML("<p>P1</p><p>P2</p>"), nil, template.HTML("<p>P1 …</p>"), false},
{3, template.HTML(strings.Repeat("<p>P</p>", 20)), nil, template.HTML("<p>P</p><p>P</p><p>P …</p>"), false},
{18, template.HTML("<p>test <b>hello</b> test something</p>"), nil, template.HTML("<p>test <b>hello</b> test …</p>"), false},
{4, template.HTML("<p>a<b><i>b</b>c d e</p>"), nil, template.HTML("<p>a<b><i>b</b>c …</p>"), false},
{10, nil, nil, template.HTML(""), true},
{nil, nil, nil, template.HTML(""), true},
}
for i, c := range cases {
var result template.HTML
if c.v2 == nil {
result, err = ns.Truncate(c.v1)
} else if c.v3 == nil {
result, err = ns.Truncate(c.v1, c.v2)
} else {
result, err = ns.Truncate(c.v1, c.v2, c.v3)
}
if c.isErr {
if err == nil {
t.Errorf("[%d] Slice didn't return an expected error", i)
}
} else {
if err != nil {
t.Errorf("[%d] failed: %s", i, err)
continue
}
if !reflect.DeepEqual(result, c.want) {
t.Errorf("[%d] got '%s' but expected '%s'", i, result, c.want)
}
}
}
// Too many arguments
_, err = ns.Truncate(10, " ...", "I am a test sentence", "wrong")
if err == nil {
t.Errorf("Should have errored")
}
}
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