add tests for rustdoc output-format json

1 files changed, 27 insertions, 0 deletions

diff --git a/src/test/rustdoc-ui/coverage/json.rs b/src/test/rustdoc-ui/coverage/json.rs
new file mode 100644
index 00000000000..8b80244f825
--- /dev/null
+++ b/src/test/rustdoc-ui/coverage/json.rs
@@ -0,0 +1,27 @@
+// build-pass
+// compile-flags:-Z unstable-options --show-coverage
+
+pub mod foo {
+    /// Hello!
+    pub struct Foo;
+    /// Bar
+    pub enum Bar { A }
+}
+
+/// X
+pub struct X;
+
+/// Bar
+pub mod bar {
+    /// bar
+    pub struct Bar;
+    /// X
+    pub enum X { Y }
+}
+
+/// yolo
+pub enum Yolo { X }
+
+pub struct Xo<T: Clone> {
+    x: T,
+}