From 0f397ebdb5480ad8cf225aa4a6bb37f7539f62d0 Mon Sep 17 00:00:00 2001
From: Eric Huss <eric@huss.org>
Date: Mon, 21 Apr 2025 18:51:59 -0700
Subject: [PATCH] Migrate
 rustdoc_include_hides_the_unspecified_part_of_the_file to BookTest

---
 tests/rendered_output.rs    | 15 ---------------
 tests/testsuite/includes.rs | 26 ++++++++++++++++++++++++++
 2 files changed, 26 insertions(+), 15 deletions(-)

diff --git a/tests/rendered_output.rs b/tests/rendered_output.rs
index 5cf91f66..591634db 100644
--- a/tests/rendered_output.rs
+++ b/tests/rendered_output.rs
@@ -127,21 +127,6 @@ fn rendered_code_does_not_have_playground_stuff_in_html_when_disabled_in_config(
     assert_doesnt_contain_strings(nested, &playground_class);
 }
 
-#[test]
-fn rustdoc_include_hides_the_unspecified_part_of_the_file() {
-    let temp = DummyBook::new().build().unwrap();
-    let md = MDBook::load(temp.path()).unwrap();
-    md.build().unwrap();
-
-    let nested = temp.path().join("book/first/nested.html");
-    let text = vec![
-        "<span class=\"boring\">fn some_function() {",
-        "<span class=\"boring\">fn some_other_function() {",
-    ];
-
-    assert_contains_strings(nested, &text);
-}
-
 #[test]
 fn chapter_content_appears_in_rendered_document() {
     let content = vec![
diff --git a/tests/testsuite/includes.rs b/tests/testsuite/includes.rs
index c7c28a1a..312caede 100644
--- a/tests/testsuite/includes.rs
+++ b/tests/testsuite/includes.rs
@@ -84,3 +84,29 @@ fn playground_include() {
 </span>}</code></pre></pre>
 "##]]);
 }
+
+// Checks the behavior of `{{#rustdoc_include}}`.
+#[test]
+fn rustdoc_include() {
+    BookTest::from_dir("includes/all_includes")
+        .check_main_file("book/rustdoc.html",
+            str![[r##"
+<h1 id="rustdoc-includes"><a class="header" href="#rustdoc-includes">Rustdoc Includes</a></h1>
+<h2 id="rustdoc-include-adds-the-rest-of-the-file-as-hidden"><a class="header" href="#rustdoc-include-adds-the-rest-of-the-file-as-hidden">Rustdoc include adds the rest of the file as hidden</a></h2>
+<pre><pre class="playground"><code class="language-rust"><span class="boring">fn some_function() {
+</span><span class="boring">    println!("some function");
+</span><span class="boring">}
+</span><span class="boring">
+</span>fn main() {
+    some_function();
+}</code></pre></pre>
+<h2 id="rustdoc-include-works-with-anchors-too"><a class="header" href="#rustdoc-include-works-with-anchors-too">Rustdoc include works with anchors too</a></h2>
+<pre><pre class="playground"><code class="language-rust"><span class="boring">fn some_other_function() {
+</span><span class="boring">    println!("unused anchor");
+</span><span class="boring">}
+</span><span class="boring">
+</span>fn main() {
+    some_other_function();
+}</code></pre></pre>
+"##]]);
+}