rustdoc: search for tuples and unit by type with `()`

2 files changed, 98 insertions, 0 deletions

diff --git a/tests/rustdoc-js/tuple-unit.js b/tests/rustdoc-js/tuple-unit.js
new file mode 100644
index 00000000000..d24a3da328c
--- /dev/null
+++ b/tests/rustdoc-js/tuple-unit.js
@@ -0,0 +1,80 @@
+// exact-check
+
+const EXPECTED = [
+    {
+        'query': '()',
+        'returned': [
+            { 'path': 'tuple_unit', 'name': 'side_effect' },
+            { 'path': 'tuple_unit', 'name': 'one' },
+            { 'path': 'tuple_unit', 'name': 'two' },
+            { 'path': 'tuple_unit', 'name': 'nest' },
+        ],
+        'in_args': [],
+    },
+    {
+        'query': 'primitive:unit',
+        'returned': [
+            { 'path': 'tuple_unit', 'name': 'side_effect' },
+        ],
+        'in_args': [],
+    },
+    {
+        'query': 'primitive:tuple',
+        'returned': [
+            { 'path': 'tuple_unit', 'name': 'one' },
+            { 'path': 'tuple_unit', 'name': 'two' },
+            { 'path': 'tuple_unit', 'name': 'nest' },
+        ],
+        'in_args': [],
+    },
+    {
+        'query': '(P)',
+        'returned': [
+            { 'path': 'tuple_unit', 'name': 'not_tuple' },
+            { 'path': 'tuple_unit', 'name': 'one' },
+            { 'path': 'tuple_unit', 'name': 'two' },
+        ],
+        'in_args': [],
+    },
+    {
+        'query': '(P,)',
+        'returned': [
+            { 'path': 'tuple_unit', 'name': 'one' },
+            { 'path': 'tuple_unit', 'name': 'two' },
+        ],
+        'in_args': [],
+    },
+    {
+        'query': '(P, P)',
+        'returned': [
+            { 'path': 'tuple_unit', 'name': 'two' },
+        ],
+        'in_args': [],
+    },
+    {
+        'query': '(P, ())',
+        'returned': [],
+        'in_args': [],
+    },
+    {
+        'query': '(Q, ())',
+        'returned': [
+            { 'path': 'tuple_unit', 'name': 'nest' },
+        ],
+        'in_args': [],
+    },
+    {
+        'query': '(R)',
+        'returned': [
+            { 'path': 'tuple_unit', 'name': 'nest' },
+        ],
+        'in_args': [],
+    },
+    {
+        'query': '(u32)',
+        'returned': [
+            { 'path': 'tuple_unit', 'name': 'nest' },
+        ],
+        'in_args': [],
+    },
+];
diff --git a/tests/rustdoc-js/tuple-unit.rs b/tests/rustdoc-js/tuple-unit.rs
new file mode 100644
index 00000000000..93f9a671cbc
--- /dev/null
+++ b/tests/rustdoc-js/tuple-unit.rs
@@ -0,0 +1,18 @@
+pub struct P;
+pub struct Q;
+pub struct R<T>(T);
+
+// Checks that tuple and unit both work
+pub fn side_effect() { }
+
+// Check a non-tuple
+pub fn not_tuple() -> P { loop {} }
+
+// Check a 1-tuple
+pub fn one() -> (P,) { loop {} }
+
+// Check a 2-tuple
+pub fn two() -> (P,P) { loop {} }
+
+// Check a nested tuple
+pub fn nest() -> (Q, R<(u32,)>) { loop {} }