1 files changed, 120 insertions, 0 deletions
diff --git a/tests/rustdoc/recursive-deref.rs b/tests/rustdoc/recursive-deref.rs
new file mode 100644
index 000000000..aa38485c4
--- /dev/null
+++ b/tests/rustdoc/recursive-deref.rs
@@ -0,0 +1,120 @@
+use std::ops::Deref;
+
+// Cyclic deref with the parent (which is not the top parent).
+pub struct A;
+pub struct B;
+pub struct C;
+
+impl C {
+    pub fn c(&self) {}
+}
+
+// @has recursive_deref/struct.A.html '//h3[@class="code-header"]' 'impl Deref for A'
+// @has '-' '//*[@class="impl-items"]//*[@id="method.c"]' 'pub fn c(&self)'
+impl Deref for A {
+    type Target = B;
+
+    fn deref(&self) -> &Self::Target {
+        panic!()
+    }
+}
+
+// @has recursive_deref/struct.B.html '//h3[@class="code-header"]' 'impl Deref for B'
+// @has '-' '//*[@class="impl-items"]//*[@id="method.c"]' 'pub fn c(&self)'
+impl Deref for B {
+    type Target = C;
+
+    fn deref(&self) -> &Self::Target {
+        panic!()
+    }
+}
+
+// @has recursive_deref/struct.C.html '//h3[@class="code-header"]' 'impl Deref for C'
+impl Deref for C {
+    type Target = B;
+
+    fn deref(&self) -> &Self::Target {
+        panic!()
+    }
+}
+
+// Cyclic deref with the grand-parent (which is not the top parent).
+pub struct D;
+pub struct E;
+pub struct F;
+pub struct G;
+
+impl G {
+    // There is no "self" parameter so it shouldn't be listed!
+    pub fn g() {}
+}
+
+// @has recursive_deref/struct.D.html '//h3[@class="code-header"]' 'impl Deref for D'
+// We also check that `G::g` method isn't rendered because there is no `self` argument.
+// @!has '-' '//*[@id="deref-methods-G"]' ''
+impl Deref for D {
+    type Target = E;
+
+    fn deref(&self) -> &Self::Target {
+        panic!()
+    }
+}
+
+// @has recursive_deref/struct.E.html '//h3[@class="code-header"]' 'impl Deref for E'
+// We also check that `G::g` method isn't rendered because there is no `self` argument.
+// @!has '-' '//*[@id="deref-methods-G"]' ''
+impl Deref for E {
+    type Target = F;
+
+    fn deref(&self) -> &Self::Target {
+        panic!()
+    }
+}
+
+// @has recursive_deref/struct.F.html '//h3[@class="code-header"]' 'impl Deref for F'
+// We also check that `G::g` method isn't rendered because there is no `self` argument.
+// @!has '-' '//*[@id="deref-methods-G"]' ''
+impl Deref for F {
+    type Target = G;
+
+    fn deref(&self) -> &Self::Target {
+        panic!()
+    }
+}
+
+// @has recursive_deref/struct.G.html '//h3[@class="code-header"]' 'impl Deref for G'
+impl Deref for G {
+    type Target = E;
+
+    fn deref(&self) -> &Self::Target {
+        panic!()
+    }
+}
+
+// Cyclic deref with top parent.
+pub struct H;
+pub struct I;
+
+impl I {
+    // There is no "self" parameter so it shouldn't be listed!
+    pub fn i() {}
+}
+
+// @has recursive_deref/struct.H.html '//h3[@class="code-header"]' 'impl Deref for H'
+// @!has '-' '//*[@id="deref-methods-I"]' ''
+impl Deref for H {
+    type Target = I;
+
+    fn deref(&self) -> &Self::Target {
+        panic!()
+    }
+}
+
+// @has recursive_deref/struct.I.html '//h3[@class="code-header"]' 'impl Deref for I'
+impl Deref for I {
+    type Target = H;
+
+    fn deref(&self) -> &Self::Target {
+        panic!()
+    }
+}