Add GUI test for source code pages highlighting

src/test/rustdoc-gui/highlight-colors.goml

@@ -0,0 +1,57 @@
+// This test checks the highlight colors in the source code pages.
+goto: "file://" + |DOC_PATH| + "/src/test_docs/lib.rs.html"
+show-text: true
+
+local-storage: {"rustdoc-theme": "ayu", "rustdoc-use-system-theme": "false"}
+reload:
+
+assert-css: ("pre.rust .kw", {"color": "rgb(255, 119, 51)"}, ALL)
+assert-css: ("pre.rust .kw-2", {"color": "rgb(255, 119, 51)"}, ALL)
+assert-css: ("pre.rust .prelude-ty", {"color": "rgb(105, 242, 223)"}, ALL)
+assert-css: ("pre.rust .prelude-val", {"color": "rgb(255, 119, 51)"}, ALL)
+assert-css: ("pre.rust .lifetime", {"color": "rgb(255, 119, 51)"}, ALL)
+assert-css: ("pre.rust .number", {"color": "rgb(184, 204, 82)"}, ALL)
+assert-css: ("pre.rust .string", {"color": "rgb(184, 204, 82)"}, ALL)
+assert-css: ("pre.rust .bool-val", {"color": "rgb(255, 119, 51)"}, ALL)
+assert-css: ("pre.rust .self", {"color": "rgb(54, 163, 217)"}, ALL)
+assert-css: ("pre.rust .attribute", {"color": "rgb(230, 225, 207)"}, ALL)
+assert-css: ("pre.rust .macro", {"color": "rgb(163, 122, 204)"}, ALL)
+assert-css: ("pre.rust .question-mark", {"color": "rgb(255, 144, 17)"}, ALL)
+assert-css: ("pre.rust .comment", {"color": "rgb(120, 135, 151)"}, ALL)
+assert-css: ("pre.rust .doccomment", {"color": "rgb(161, 172, 136)"}, ALL)
+
+local-storage: {"rustdoc-theme": "dark"}
+reload:
+
+assert-css: ("pre.rust .kw", {"color": "rgb(171, 138, 193)"}, ALL)
+assert-css: ("pre.rust .kw-2", {"color": "rgb(118, 154, 203)"}, ALL)
+assert-css: ("pre.rust .prelude-ty", {"color": "rgb(118, 154, 203)"}, ALL)
+assert-css: ("pre.rust .prelude-val", {"color": "rgb(238, 104, 104)"}, ALL)
+assert-css: ("pre.rust .lifetime", {"color": "rgb(217, 127, 38)"}, ALL)
+assert-css: ("pre.rust .number", {"color": "rgb(131, 163, 0)"}, ALL)
+assert-css: ("pre.rust .string", {"color": "rgb(131, 163, 0)"}, ALL)
+assert-css: ("pre.rust .bool-val", {"color": "rgb(238, 104, 104)"}, ALL)
+assert-css: ("pre.rust .self", {"color": "rgb(238, 104, 104)"}, ALL)
+assert-css: ("pre.rust .attribute", {"color": "rgb(238, 104, 104)"}, ALL)
+assert-css: ("pre.rust .macro", {"color": "rgb(62, 153, 159)"}, ALL)
+assert-css: ("pre.rust .question-mark", {"color": "rgb(255, 144, 17)"}, ALL)
+assert-css: ("pre.rust .comment", {"color": "rgb(141, 141, 139)"}, ALL)
+assert-css: ("pre.rust .doccomment", {"color": "rgb(140, 163, 117)"}, ALL)
+
+local-storage: {"rustdoc-theme": "light"}
+reload:
+
+assert-css: ("pre.rust .kw", {"color": "rgb(137, 89, 168)"}, ALL)
+assert-css: ("pre.rust .kw-2", {"color": "rgb(66, 113, 174)"}, ALL)
+assert-css: ("pre.rust .prelude-ty", {"color": "rgb(66, 113, 174)"}, ALL)
+assert-css: ("pre.rust .prelude-val", {"color": "rgb(200, 40, 41)"}, ALL)
+assert-css: ("pre.rust .lifetime", {"color": "rgb(183, 101, 20)"}, ALL)
+assert-css: ("pre.rust .number", {"color": "rgb(113, 140, 0)"}, ALL)
+assert-css: ("pre.rust .string", {"color": "rgb(113, 140, 0)"}, ALL)
+assert-css: ("pre.rust .bool-val", {"color": "rgb(200, 40, 41)"}, ALL)
+assert-css: ("pre.rust .self", {"color": "rgb(200, 40, 41)"}, ALL)
+assert-css: ("pre.rust .attribute", {"color": "rgb(200, 40, 41)"}, ALL)
+assert-css: ("pre.rust .macro", {"color": "rgb(62, 153, 159)"}, ALL)
+assert-css: ("pre.rust .question-mark", {"color": "rgb(255, 144, 17)"}, ALL)
+assert-css: ("pre.rust .comment", {"color": "rgb(142, 144, 140)"}, ALL)
+assert-css: ("pre.rust .doccomment", {"color": "rgb(77, 77, 76)"}, ALL)

src/test/rustdoc-gui/src/test_docs/lib.rs

@@ -363,9 +363,24 @@ pub trait TraitWithNoDocblocks {
 
 pub struct TypeWithNoDocblocks;
 
+impl TypeWithNoDocblocks {
+    fn x() -> Option<Self> {
+        Some(Self)
+    }
+    fn y() -> Option<u32> {
+        // code comment
+        let t = Self::x()?;
+        Some(0)
+    }
+}
+
 impl TypeWithNoDocblocks {
     pub fn first_fn(&self) {}
-    pub fn second_fn(&self) {}
+    pub fn second_fn<'a>(&'a self) {
+        let x = 12;
+        let y = "a";
+        let z = false;
+    }
 }
 
 pub unsafe fn unsafe_fn() {}