Add regression test for type declaration layout overflow

GuillaumeGomez · GuillaumeGomez · commit 25e74037e8c1 · 2021-07-15T18:19:25.000+02:00
diff --git a/src/test/rustdoc-gui/src/lib2/lib.rs b/src/test/rustdoc-gui/src/lib2/lib.rs
@@ -47,3 +47,10 @@ pub mod sub_mod {
     /// ```
     pub struct Foo;
 }
+
+pub mod long_trait {
+    use std::ops::DerefMut;
+
+    pub trait ALongNameBecauseItHelpsTestingTheCurrentProblem: DerefMut<Target = u32>
+        + From<u128> + Send + Sync + AsRef<str> + 'static {}
+}
diff --git a/src/test/rustdoc-gui/type-declation-overflow.goml b/src/test/rustdoc-gui/type-declation-overflow.goml
@@ -0,0 +1,8 @@
+// This test ensures that the type declaration content overflow is handled inside the <pre> directly.
+goto: file://|DOC_PATH|/lib2/long_trait/trait.ALongNameBecauseItHelpsTestingTheCurrentProblem.html
+// We set a fixed size so there is no chance of "random" resize.
+size: (1100, 800)
+// Logically, the <body> scroll width should be the width of the window.
+assert-property: ("body", {"scrollWidth": "1100"})
+// However, since there is overflow in the type declaration, its scroll width is bigger.
+assert-property: (".type-decl pre", {"scrollWidth": "1324"})
