rustdoc-json: Make the `fns/generics.rs` test much more robust

diff --git a/src/test/rustdoc-json/fns/generics.rs b/src/test/rustdoc-json/fns/generics.rs
index f80c380337bfe8d3abab32e857dcf7cfffd0fa6a..e777fabaa52a7f22e47fe57e3e948224d9092562 100644 (file)
--- a/src/test/rustdoc-json/fns/generics.rs
+++ b/src/test/rustdoc-json/fns/generics.rs
@@ -1,5 +1,26 @@
-// @has generics.json "$.index[*][?(@.name=='one_generic_param_fn')].inner.generics.params[0].kind.type.synthetic" false
-pub fn one_generic_param_fn<T>(_: T) {}
+// ignore-tidy-linelength
 
-// @has - "$.index[*][?(@.name=='one_synthetic_generic_param_fn')].inner.generics.params[0].kind.type.synthetic" true
-pub fn one_synthetic_generic_param_fn(_: impl Clone) {}
+#![feature(no_core)]
+#![no_core]
+
+// @set wham_id = generics.json "$.index[*][?(@.name=='Wham')].id"
+pub trait Wham {}
+
+// @is    - "$.index[*][?(@.name=='one_generic_param_fn')].inner.generics.where_predicates" []
+// @count - "$.index[*][?(@.name=='one_generic_param_fn')].inner.generics.params[*]" 1
+// @is    - "$.index[*][?(@.name=='one_generic_param_fn')].inner.generics.params[0].name" '"T"'
+// @has   - "$.index[*][?(@.name=='one_generic_param_fn')].inner.generics.params[0].kind.type.synthetic" false
+// @has   - "$.index[*][?(@.name=='one_generic_param_fn')].inner.generics.params[0].kind.type.bounds[0].trait_bound.trait.inner.id" $wham_id
+// @is    - "$.index[*][?(@.name=='one_generic_param_fn')].inner.decl.inputs" '[["w", {"inner": "T", "kind": "generic"}]]'
+pub fn one_generic_param_fn<T: Wham>(w: T) {}
+
+// @is    - "$.index[*][?(@.name=='one_synthetic_generic_param_fn')].inner.generics.where_predicates" []
+// @count - "$.index[*][?(@.name=='one_synthetic_generic_param_fn')].inner.generics.params[*]" 1
+// @is    - "$.index[*][?(@.name=='one_synthetic_generic_param_fn')].inner.generics.params[0].name" '"impl Wham"'
+// @has   - "$.index[*][?(@.name=='one_synthetic_generic_param_fn')].inner.generics.params[0].kind.type.synthetic" true
+// @has   - "$.index[*][?(@.name=='one_synthetic_generic_param_fn')].inner.generics.params[0].kind.type.bounds[0].trait_bound.trait.inner.id" $wham_id
+// @count - "$.index[*][?(@.name=='one_synthetic_generic_param_fn')].inner.decl.inputs[*]" 1
+// @is    - "$.index[*][?(@.name=='one_synthetic_generic_param_fn')].inner.decl.inputs[0][0]" '"w"'
+// @is    - "$.index[*][?(@.name=='one_synthetic_generic_param_fn')].inner.decl.inputs[0][1].kind" '"impl_trait"'
+// @is    - "$.index[*][?(@.name=='one_synthetic_generic_param_fn')].inner.decl.inputs[0][1].inner[0].trait_bound.trait.inner.id" $wham_id
+pub fn one_synthetic_generic_param_fn(w: impl Wham) {}