10 files changed, 80 insertions, 0 deletions
diff --git a/src/test/rustdoc-gui/implementors.goml b/src/test/rustdoc-gui/implementors.goml
new file mode 100644
index 00000000000..a4db5cee7c7
--- /dev/null
+++ b/src/test/rustdoc-gui/implementors.goml
@@ -0,0 +1,16 @@
+// The goal of this test is to check that the external trait implementors, generated with JS,
+// have the same display than the "local" ones.
+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)
+// 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.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.in-band"
diff --git a/src/test/rustdoc-gui/src/Cargo.lock b/src/test/rustdoc-gui/src/Cargo.lock
new file mode 100644
index 00000000000..a72ccffc6dd
--- /dev/null
+++ b/src/test/rustdoc-gui/src/Cargo.lock
@@ -0,0 +1,18 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "implementors"
+version = "0.1.0"
+
+[[package]]
+name = "lib2"
+version = "0.1.0"
+dependencies = [
+ "implementors",
+]
+
+[[package]]
+name = "test_docs"
+version = "0.1.0"
diff --git a/src/test/rustdoc-gui/src/Cargo.toml b/src/test/rustdoc-gui/src/Cargo.toml
new file mode 100644
index 00000000000..9c8c0c636f0
--- /dev/null
+++ b/src/test/rustdoc-gui/src/Cargo.toml
@@ -0,0 +1,6 @@
+[workspace]
+members = [
+    "test_docs",
+    "lib2",
+    "implementors",
+]
diff --git a/src/test/rustdoc-gui/src/implementors/Cargo.toml b/src/test/rustdoc-gui/src/implementors/Cargo.toml
new file mode 100644
index 00000000000..7ef1052c49f
--- /dev/null
+++ b/src/test/rustdoc-gui/src/implementors/Cargo.toml
@@ -0,0 +1,7 @@
+[package]
+name = "implementors"
+version = "0.1.0"
+edition = "2018"
+
+[lib]
+path = "lib.rs"
diff --git a/src/test/rustdoc-gui/src/implementors/lib.rs b/src/test/rustdoc-gui/src/implementors/lib.rs
new file mode 100644
index 00000000000..4b2f6962e30
--- /dev/null
+++ b/src/test/rustdoc-gui/src/implementors/lib.rs
@@ -0,0 +1,7 @@
+pub trait Whatever {
+    fn method() {}
+}
+
+pub struct Struct;
+
+impl Whatever for Struct {}
diff --git a/src/test/rustdoc-gui/src/lib2/Cargo.toml b/src/test/rustdoc-gui/src/lib2/Cargo.toml
new file mode 100644
index 00000000000..6041a793f08
--- /dev/null
+++ b/src/test/rustdoc-gui/src/lib2/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "lib2"
+version = "0.1.0"
+edition = "2018"
+
+[lib]
+path = "lib.rs"
+
+[dependencies]
+implementors = { path = "../implementors" }
diff --git a/src/test/rustdoc-gui/src/lib2.rs b/src/test/rustdoc-gui/src/lib2/lib.rs
index 77d384f3113..72ef3cbd202 100644
--- a/src/test/rustdoc-gui/src/lib2.rs
+++ b/src/test/rustdoc-gui/src/lib2/lib.rs
@@ -31,3 +31,5 @@ impl Trait for Foo {
     type X = u32;
     const Y: u32 = 0;
 }
+
+impl implementors::Whatever for Foo {}
diff --git a/src/test/rustdoc-gui/src/lib2/src/lib.rs b/src/test/rustdoc-gui/src/lib2/src/lib.rs
new file mode 100644
index 00000000000..31e1bb209f9
--- /dev/null
+++ b/src/test/rustdoc-gui/src/lib2/src/lib.rs
@@ -0,0 +1,7 @@
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn it_works() {
+        assert_eq!(2 + 2, 4);
+    }
+}
diff --git a/src/test/rustdoc-gui/src/test_docs/Cargo.toml b/src/test/rustdoc-gui/src/test_docs/Cargo.toml
new file mode 100644
index 00000000000..7f3c65746fc
--- /dev/null
+++ b/src/test/rustdoc-gui/src/test_docs/Cargo.toml
@@ -0,0 +1,7 @@
+[package]
+name = "test_docs"
+version = "0.1.0"
+edition = "2018"
+
+[lib]
+path = "lib.rs"
diff --git a/src/test/rustdoc-gui/src/lib.rs b/src/test/rustdoc-gui/src/test_docs/lib.rs
index 3e753cb4de8..3e753cb4de8 100644
--- a/src/test/rustdoc-gui/src/lib.rs
+++ b/src/test/rustdoc-gui/src/test_docs/lib.rs