2 files changed, 108 insertions, 0 deletions
diff --git a/tests/rustdoc-js/generics-match-ambiguity.js b/tests/rustdoc-js/generics-match-ambiguity.js
new file mode 100644
index 00000000000..a9932a16ca3
--- /dev/null
+++ b/tests/rustdoc-js/generics-match-ambiguity.js
@@ -0,0 +1,91 @@
+// ignore-order
+// exact-check
+
+// Make sure that results are order-agnostic, even when there's search items that only differ
+// by generics.
+
+const EXPECTED = [
+    {
+        'query': 'Wrap',
+        'in_args': [
+            { 'path': 'generics_match_ambiguity', 'name': 'bar' },
+            { 'path': 'generics_match_ambiguity', 'name': 'foo' },
+        ],
+    },
+    {
+        'query': 'Wrap<i32>',
+        'in_args': [
+            { 'path': 'generics_match_ambiguity', 'name': 'bar' },
+            { 'path': 'generics_match_ambiguity', 'name': 'foo' },
+        ],
+    },
+    {
+        'query': 'Wrap<i32>, Wrap<i32, u32>',
+        'others': [
+            { 'path': 'generics_match_ambiguity', 'name': 'bar' },
+            { 'path': 'generics_match_ambiguity', 'name': 'foo' },
+        ],
+    },
+    {
+        'query': 'Wrap<i32, u32>, Wrap<i32>',
+        'others': [
+            { 'path': 'generics_match_ambiguity', 'name': 'bar' },
+            { 'path': 'generics_match_ambiguity', 'name': 'foo' },
+        ],
+    },
+    {
+        'query': 'W3<i32>, W3<i32, u32>',
+        'others': [
+            { 'path': 'generics_match_ambiguity', 'name': 'baaa' },
+            { 'path': 'generics_match_ambiguity', 'name': 'baab' },
+            { 'path': 'generics_match_ambiguity', 'name': 'baac' },
+            { 'path': 'generics_match_ambiguity', 'name': 'baad' },
+            { 'path': 'generics_match_ambiguity', 'name': 'baae' },
+            { 'path': 'generics_match_ambiguity', 'name': 'baaf' },
+            { 'path': 'generics_match_ambiguity', 'name': 'baag' },
+            { 'path': 'generics_match_ambiguity', 'name': 'baah' },
+        ],
+    },
+    {
+        'query': 'W3<i32, u32>, W3<i32>',
+        'others': [
+            { 'path': 'generics_match_ambiguity', 'name': 'baaa' },
+            { 'path': 'generics_match_ambiguity', 'name': 'baab' },
+            { 'path': 'generics_match_ambiguity', 'name': 'baac' },
+            { 'path': 'generics_match_ambiguity', 'name': 'baad' },
+            { 'path': 'generics_match_ambiguity', 'name': 'baae' },
+            { 'path': 'generics_match_ambiguity', 'name': 'baaf' },
+            { 'path': 'generics_match_ambiguity', 'name': 'baag' },
+            { 'path': 'generics_match_ambiguity', 'name': 'baah' },
+        ],
+    },
+    {
+        'query': 'W2<i32>, W2<i32, u32>',
+        'others': [
+            { 'path': 'generics_match_ambiguity', 'name': 'baag' },
+            { 'path': 'generics_match_ambiguity', 'name': 'baah' },
+        ],
+    },
+    {
+        'query': 'W2<i32, u32>, W2<i32>',
+        'others': [
+            { 'path': 'generics_match_ambiguity', 'name': 'baag' },
+            { 'path': 'generics_match_ambiguity', 'name': 'baah' },
+        ],
+    },
+    {
+        'query': 'W2<i32>, W3<i32, u32>',
+        'others': [
+            { 'path': 'generics_match_ambiguity', 'name': 'baac' },
+            { 'path': 'generics_match_ambiguity', 'name': 'baaf' },
+            { 'path': 'generics_match_ambiguity', 'name': 'baag' },
+        ],
+    },
+    {
+        'query': 'W2<i32>, W2<i32>',
+        'others': [
+            { 'path': 'generics_match_ambiguity', 'name': 'baag' },
+            { 'path': 'generics_match_ambiguity', 'name': 'baah' },
+        ],
+    },
+];
diff --git a/tests/rustdoc-js/generics-match-ambiguity.rs b/tests/rustdoc-js/generics-match-ambiguity.rs
new file mode 100644
index 00000000000..79c493856eb
--- /dev/null
+++ b/tests/rustdoc-js/generics-match-ambiguity.rs
@@ -0,0 +1,17 @@
+pub struct Wrap<T, U = ()>(pub T, pub U);
+
+pub fn foo(a: Wrap<i32>, b: Wrap<i32, u32>) {}
+pub fn bar(a: Wrap<i32, u32>, b: Wrap<i32>) {}
+
+pub struct W2<T>(pub T);
+pub struct W3<T, U = ()>(pub T, pub U);
+
+pub fn baaa(a: W3<i32>, b: W3<i32, u32>) {}
+pub fn baab(a: W3<i32, u32>, b: W3<i32>) {}
+pub fn baac(a: W2<W3<i32>>, b: W3<i32, u32>) {}
+pub fn baad(a: W2<W3<i32, u32>>, b: W3<i32>) {}
+pub fn baae(a: W3<i32>, b: W2<W3<i32, u32>>) {}
+pub fn baaf(a: W3<i32, u32>, b: W2<W3<i32>>) {}
+pub fn baag(a: W2<W3<i32>>, b: W2<W3<i32, u32>>) {}
+pub fn baah(a: W2<W3<i32, u32>>, b: W2<W3<i32>>) {}
+//