add regression test for #145529

Author: lolbinarycat

tests/rustdoc-ui/lints/invalid-html-tags.rs

@@ -121,3 +121,34 @@ pub fn no_error_1() {}
 /// backslashed \<<a href="">
 //~^ ERROR unclosed HTML tag `a`
 pub fn p() {}
+
+/// <svg width="512" height="512" viewBox="0 0 512" fill="none" xmlns="http://www.w3.org/2000/svg">
+///     <rect
+///        width="256"
+///        height="256"
+///        fill="#5064C8"
+///        stroke="black"
+///     />
+/// </svg>
+pub fn no_error_2() {}
+
+/// <div>
+///     <img
+///         src="https://github.com/rust-lang/rust-artwork/blob/master/logo/rust-logo-512x512.png?raw=true"
+///         width="512"
+///         height="512"
+///     />
+/// </div>
+pub fn no_error_3() {}
+
+/// unfinished ALLOWED_UNCLOSED
+///
+/// <br>
+/// <img
+//~^ ERROR unclosed HTML tag `img`
+pub fn q() {}
+
+/// nested unfinished ALLOWED_UNCLOSED
+/// <p><img</p>
+//~^ ERROR unclosed HTML tag `img`
+pub fn r() {}

tests/rustdoc-ui/lints/invalid-html-tags.stderr

@@ -100,5 +100,17 @@ error: unclosed HTML tag `a`
 LL | /// backslashed \<<a href="">
    |                   ^^
 
-error: aborting due to 16 previous errors
+error: unclosed HTML tag `img`
+  --> $DIR/invalid-html-tags.rs:147:5
+   |
+LL | /// <img
+   |     ^^^
+
+error: unclosed HTML tag `img`
+  --> $DIR/invalid-html-tags.rs:152:8
+   |
+LL | /// <p><img</p>
+   |        ^^^^
+
+error: aborting due to 18 previous errors