lyng/site/src/jsTest/kotlin/LinkRewriteTest.kt

84 lines
3.0 KiB
Kotlin

/*
* Copyright 2025 Sergey S. Chernov real.sergeych@gmail.com
*
* 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.
*
*/
/*
* Tests for link and image rewriting in rendered markdown HTML.
*/
import kotlinx.browser.document
import org.w3c.dom.HTMLAnchorElement
import org.w3c.dom.HTMLDivElement
import org.w3c.dom.HTMLImageElement
import kotlin.test.Test
import kotlin.test.assertEquals
class LinkRewriteTest {
private fun makeContainer(html: String): HTMLDivElement {
val div = document.createElement("div") as HTMLDivElement
div.innerHTML = html.trimIndent()
return div
}
@Test
fun testRewriteAnchorsAndImagesUsingDocBasePath() {
val html = """
<div class="markdown-body">
<p>
<a id="a1" href="Iterator.md">iterator page</a>
<a id="a2" href="Iterator.md#intro">iterator with frag</a>
<a id="a3" href="#install">install section</a>
<a id="a4" href="https://example.com">external</a>
<a id="a5" href="img/p.png">asset</a>
</p>
<p>
<img id="i1" src="images/pic.png" />
</p>
</div>
"""
val root = makeContainer(html)
val currentDoc = "docs/tutorial.md"
val basePath = currentDoc.substringBeforeLast('/')
// exercise rewrites
rewriteImages(root, basePath)
rewriteAnchors(root, basePath, currentDoc) { /* no-op for tests */ }
// Validate anchors
val a1 = root.querySelector("#a1") as HTMLAnchorElement
assertEquals("#/docs/Iterator.md", a1.getAttribute("href"))
val a2 = root.querySelector("#a2") as HTMLAnchorElement
assertEquals("#/docs/Iterator.md#intro", a2.getAttribute("href"))
val a3 = root.querySelector("#a3") as HTMLAnchorElement
assertEquals("#/docs/tutorial.md#install", a3.getAttribute("href"))
val a4 = root.querySelector("#a4") as HTMLAnchorElement
// external should remain unchanged
assertEquals("https://example.com", a4.getAttribute("href"))
val a5 = root.querySelector("#a5") as HTMLAnchorElement
// non-md relative assets should become relative to doc directory (no SPA hash)
assertEquals("docs/img/p.png", a5.getAttribute("href"))
// Validate image src
val i1 = root.querySelector("#i1") as HTMLImageElement
assertEquals("docs/images/pic.png", i1.getAttribute("src"))
}
}