2 files changed, 30 insertions, 0 deletions
diff --git a/tests/rustdoc-json/unions/impl.rs b/tests/rustdoc-json/unions/impl.rs
new file mode 100644
index 000000000..4454a69ec
--- /dev/null
+++ b/tests/rustdoc-json/unions/impl.rs
@@ -0,0 +1,15 @@
+#![no_std]
+
+// @is "$.index[*][?(@.name=='Ux')].visibility" \"public\"
+// @is "$.index[*][?(@.name=='Ux')].kind" \"union\"
+pub union Ux {
+    a: u32,
+    b: u64
+}
+
+// @is "$.index[*][?(@.name=='Num')].visibility" \"public\"
+// @is "$.index[*][?(@.name=='Num')].kind" \"trait\"
+pub trait Num {}
+
+// @count "$.index[*][?(@.name=='Ux')].inner.impls" 1
+impl Num for Ux {}
diff --git a/tests/rustdoc-json/unions/union.rs b/tests/rustdoc-json/unions/union.rs
new file mode 100644
index 000000000..c9df2b81c
--- /dev/null
+++ b/tests/rustdoc-json/unions/union.rs
@@ -0,0 +1,15 @@
+// @has "$.index[*][?(@.name=='Union')].visibility" \"public\"
+// @has "$.index[*][?(@.name=='Union')].kind" \"union\"
+// @!has "$.index[*][?(@.name=='Union')].inner.struct_type"
+// @set Union = "$.index[*][?(@.name=='Union')].id"
+pub union Union {
+    int: i32,
+    float: f32,
+}
+
+
+// @is "$.index[*][?(@.name=='make_int_union')].inner.decl.output.kind" '"resolved_path"'
+// @is "$.index[*][?(@.name=='make_int_union')].inner.decl.output.inner.id" $Union
+pub fn make_int_union(int: i32) -> Union {
+    Union { int }
+}