4 files changed, 96 insertions, 0 deletions
diff --git a/src/test/rustdoc-js/generics-trait.js b/src/test/rustdoc-js/generics-trait.js
new file mode 100644
index 00000000000..7876622435b
--- /dev/null
+++ b/src/test/rustdoc-js/generics-trait.js
@@ -0,0 +1,23 @@
+const QUERY = [
+    'Result<SomeTrait>',
+    'OtherThingxxxxxxxx',
+];
+
+const EXPECTED = [
+    {
+        'in_args': [
+            { 'path': 'generics_trait', 'name': 'beta' },
+        ],
+        'returned': [
+            { 'path': 'generics_trait', 'name': 'bet' },
+        ],
+    },
+    {
+        'in_args': [
+            { 'path': 'generics_trait', 'name': 'alpha' },
+        ],
+        'returned': [
+            { 'path': 'generics_trait', 'name': 'alef' },
+        ],
+    },
+];
diff --git a/src/test/rustdoc-js/generics-trait.rs b/src/test/rustdoc-js/generics-trait.rs
new file mode 100644
index 00000000000..20db117ccd5
--- /dev/null
+++ b/src/test/rustdoc-js/generics-trait.rs
@@ -0,0 +1,8 @@
+pub trait SomeTrait {}
+pub trait OtherThingxxxxxxxx {}
+
+pub fn alef<T: OtherThingxxxxxxxx>() -> Result<T, ()> { loop {} }
+pub fn bet<T: SomeTrait>() -> Result<T, ()> { loop {} }
+
+pub fn alpha<T: OtherThingxxxxxxxx>(_param: Result<T, ()>) { loop {} }
+pub fn beta<T: SomeTrait>(_param: Result<T, ()>) { loop {} }
diff --git a/src/test/rustdoc-js/generics.js b/src/test/rustdoc-js/generics.js
new file mode 100644
index 00000000000..49a80ae2360
--- /dev/null
+++ b/src/test/rustdoc-js/generics.js
@@ -0,0 +1,44 @@
+// exact-check
+
+const QUERY = [
+  '"R<P>"',
+  '"P"',
+  'P',
+  '"ExtraCreditStructMulti<ExtraCreditInnerMulti, ExtraCreditInnerMulti>"',
+];
+
+const EXPECTED = [
+    {
+        'returned': [
+            { 'path': 'generics', 'name': 'alef' },
+        ],
+        'in_args': [
+            { 'path': 'generics', 'name': 'alpha' },
+        ],
+    },
+    {
+        'others': [
+            { 'path': 'generics', 'name': 'P' },
+        ],
+        'returned': [
+            { 'path': 'generics', 'name': 'alef' },
+        ],
+        'in_args': [
+            { 'path': 'generics', 'name': 'alpha' },
+        ],
+    },
+    {
+        'returned': [
+            { 'path': 'generics', 'name': 'alef' },
+        ],
+        'in_args': [
+            { 'path': 'generics', 'name': 'alpha' },
+        ],
+    },
+    {
+        'in_args': [
+            { 'path': 'generics', 'name': 'extracreditlabhomework' },
+        ],
+        'returned': [],
+    },
+];
diff --git a/src/test/rustdoc-js/generics.rs b/src/test/rustdoc-js/generics.rs
new file mode 100644
index 00000000000..a0dc086e9f9
--- /dev/null
+++ b/src/test/rustdoc-js/generics.rs
@@ -0,0 +1,21 @@
+pub struct P;
+pub struct Q;
+pub struct R<T>(T);
+
+// returns test
+pub fn alef() -> R<P> { loop {} }
+pub fn bet() -> R<Q> { loop {} }
+
+// in_args test
+pub fn alpha(_x: R<P>) { loop {} }
+pub fn beta(_x: R<Q>) { loop {} }
+
+// test case with multiple appearances of the same type
+pub struct ExtraCreditStructMulti<T, U> { t: T, u: U }
+pub struct ExtraCreditInnerMulti {}
+pub fn extracreditlabhomework(
+    _param: ExtraCreditStructMulti<ExtraCreditInnerMulti, ExtraCreditInnerMulti>
+) { loop {} }
+pub fn redherringmatchforextracredit(
+    _param: ExtraCreditStructMulti<ExtraCreditInnerMulti, ()>
+) { loop {} }