Add tests for implementors associated types display

src/test/rustdoc-gui/implementors.goml

@@ -3,14 +3,14 @@
 goto: file://|DOC_PATH|/implementors/trait.Whatever.html
 assert: "#implementors-list"
 // There are supposed to be two implementors listed.
-assert-count: ("#implementors-list > .impl", 2)
+assert-count: ("#implementors-list .impl", 2)
 // Now we check that both implementors have an anchor, an ID and a similar DOM.
-assert: ("#implementors-list > .impl:nth-child(1) > a.anchor")
-assert-attribute: ("#implementors-list > .impl:nth-child(1)", {"id": "impl-Whatever"})
-assert-attribute: ("#implementors-list > .impl:nth-child(1) > a.anchor", {"href": "#impl-Whatever"})
-assert: "#implementors-list > .impl:nth-child(1) > .code-header.in-band"
+assert: ("#implementors-list .impl:nth-child(1) > a.anchor")
+assert-attribute: ("#implementors-list .impl:nth-child(1)", {"id": "impl-Whatever"})
+assert-attribute: ("#implementors-list .impl:nth-child(1) > a.anchor", {"href": "#impl-Whatever"})
+assert: "#implementors-list .impl:nth-child(1) > .code-header.in-band"
 
-assert: ("#implementors-list > .impl:nth-child(2) > a.anchor")
-assert-attribute: ("#implementors-list > .impl:nth-child(2)", {"id": "impl-Whatever-1"})
-assert-attribute: ("#implementors-list > .impl:nth-child(2) > a.anchor", {"href": "#impl-Whatever-1"})
-assert: "#implementors-list > .impl:nth-child(2) > .code-header.in-band"
+assert: ("#implementors-list .impl:nth-child(2) > a.anchor")
+assert-attribute: ("#implementors-list .impl:nth-child(2)", {"id": "impl-Whatever-1"})
+assert-attribute: ("#implementors-list .impl:nth-child(2) > a.anchor", {"href": "#impl-Whatever-1"})
+assert: "#implementors-list .impl:nth-child(2) > .code-header.in-band"

src/test/rustdoc-gui/src/lib2/implementors/lib.rs

 pub trait Whatever {
+    type Foo;
+
     fn method() {}
 }
 
 pub struct Struct;
 
-impl Whatever for Struct {}
+impl Whatever for Struct {
+    type Foo = u8;
+}

src/test/rustdoc-gui/src/lib2/lib.rs

@@ -38,7 +38,9 @@ impl Trait for Foo {
 }
 
 
-impl implementors::Whatever for Foo {}
+impl implementors::Whatever for Foo {
+    type Foo = u32;
+}
 
 pub mod sub_mod {
     /// ```txt

src/test/rustdoc-gui/toggle-implementors.goml

+// This test ensures two things:
+//
+// 1. The implementors toggle are not open by default.
+// 2. The "auto-collapse-implementors" setting is working as expected.
+goto: file://|DOC_PATH|/implementors/trait.Whatever.html
+
+// First, checking that they are not open by default.
+assert-attribute-false: ("#implementors-list > details", {"open": ""}, ALL)
+
+// Second, checking "auto-collapse-implementors" setting.
+local-storage: {"rustdoc-auto-collapse-implementors": false}
+reload:
+assert-attribute: ("#implementors-list > details", {"open": ""}, ALL)

src/test/rustdoc/trait-impl-items-links-and-anchors.rs

 pub trait MyTrait {
     type Assoc;
-    const VALUE: u32;
+    const VALUE: u32 = 12;
     fn trait_function(&self);
     fn defaulted(&self) {}
     fn defaulted_override(&self) {}
@@ -38,9 +38,11 @@ fn defaulted_override(&self) {}
 }
 
 impl MyTrait for MyStruct {
+    // @has trait_impl_items_links_and_anchors/trait.MyTrait.html '//div[@id="associatedtype.Assoc-3"]//a[@class="anchor"]/@href' #associatedtype.Assoc-3
     // @has trait_impl_items_links_and_anchors/struct.MyStruct.html '//div[@id="associatedtype.Assoc"]//a[@class="type"]/@href' trait.MyTrait.html#associatedtype.Assoc
     // @has trait_impl_items_links_and_anchors/struct.MyStruct.html '//div[@id="associatedtype.Assoc"]//a[@class="anchor"]/@href' #associatedtype.Assoc
     type Assoc = bool;
+    // @has trait_impl_items_links_and_anchors/trait.MyTrait.html '//div[@id="associatedconstant.VALUE-3"]//a[@class="anchor"]/@href' #associatedconstant.VALUE-3
     // @has trait_impl_items_links_and_anchors/struct.MyStruct.html '//div[@id="associatedconstant.VALUE"]//a[@class="constant"]/@href' trait.MyTrait.html#associatedconstant.VALUE
     // @has trait_impl_items_links_and_anchors/struct.MyStruct.html '//div[@id="associatedconstant.VALUE"]//a[@class="anchor"]/@href' #associatedconstant.VALUE
     const VALUE: u32 = 20;
@@ -55,3 +57,10 @@ fn defaulted_override(&self) {}
 }
 
 pub struct MyStruct;
+
+// We check that associated items with default values aren't generated in the implementors list.
+impl MyTrait for (u8, u8) {
+    // @!has trait_impl_items_links_and_anchors/trait.MyTrait.html '//div[@id="associatedconstant.VALUE-4"]'
+    type Assoc = bool;
+    fn trait_function(&self) {}
+}