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// Copyright 2017 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT

package markup

import (
	"strings"
	"testing"

	"code.gitea.io/gitea/modules/git"
	"code.gitea.io/gitea/modules/markup"
	"code.gitea.io/gitea/modules/setting"
	"code.gitea.io/gitea/modules/util"

	"github.com/stretchr/testify/assert"
)

const (
	AppURL    = "http://localhost:3000/"
	Repo      = "gogits/gogs"
	AppSubURL = AppURL + Repo + "/"
)

func TestRender_StandardLinks(t *testing.T) {
	setting.AppURL = AppURL
	setting.AppSubURL = AppSubURL

	test := func(input, expected string) {
		buffer, err := RenderString(&markup.RenderContext{
			Ctx:       git.DefaultContext,
			URLPrefix: setting.AppSubURL,
		}, input)
		assert.NoError(t, err)
		assert.Equal(t, strings.TrimSpace(expected), strings.TrimSpace(buffer))
	}

	googleRendered := "<p><a href=\"https://google.com/\" title=\"https://google.com/\">https://google.com/</a></p>"
	test("[[https://google.com/]]", googleRendered)

	lnk := util.URLJoin(AppSubURL, "WikiPage")
	test("[[WikiPage][WikiPage]]",
		"<p><a href=\""+lnk+"\" title=\"WikiPage\">WikiPage</a></p>")
}

func TestRender_Images(t *testing.T) {
	setting.AppURL = AppURL
	setting.AppSubURL = AppSubURL

	test := func(input, expected string) {
		buffer, err := RenderString(&markup.RenderContext{
			Ctx:       git.DefaultContext,
			URLPrefix: setting.AppSubURL,
		}, input)
		assert.NoError(t, err)
		assert.Equal(t, strings.TrimSpace(expected), strings.TrimSpace(buffer))
	}

	url := "../../.images/src/02/train.jpg"
	result := util.URLJoin(AppSubURL, url)

	test("[[file:"+url+"]]",
		"<p><img src=\""+result+"\" alt=\""+result+"\" title=\""+result+"\" /></p>")
}

func TestRender_Source(t *testing.T) {
	setting.AppURL = AppURL
	setting.AppSubURL = AppSubURL

	test := func(input, expected string) {
		buffer, err := RenderString(&markup.RenderContext{
			Ctx:       git.DefaultContext,
			URLPrefix: setting.AppSubURL,
		}, input)
		assert.NoError(t, err)
		assert.Equal(t, strings.TrimSpace(expected), strings.TrimSpace(buffer))
	}

	test(`#+begin_src go
// HelloWorld prints "Hello World"
func HelloWorld() {
	fmt.Println("Hello World")
}
#+end_src
`, `<div class="src src-go">
<pre><code class="chroma language-go"><span class="c1">// HelloWorld prints &#34;Hello World&#34;
</span><span class="c1"></span><span class="kd">func</span> <span class="nf">HelloWorld</span><span class="p">()</span> <span class="p">{</span>
	<span class="nx">fmt</span><span class="p">.</span><span class="nf">Println</span><span class="p">(</span><span class="s">&#34;Hello World&#34;</span><span class="p">)</span>
<span class="p">}</span></code></pre>
</div>`)
}