add non-regression test for issue 115351

2 files changed, 39 insertions, 0 deletions

diff --git a/tests/ui/traits/new-solver/overflow/recursion-limit-zero-issue-115351.rs b/tests/ui/traits/new-solver/overflow/recursion-limit-zero-issue-115351.rs
new file mode 100644
index 00000000000..539c9614e82
--- /dev/null
+++ b/tests/ui/traits/new-solver/overflow/recursion-limit-zero-issue-115351.rs
@@ -0,0 +1,12 @@
+//~ ERROR overflow evaluating the requirement `Self well-formed`
+//~| ERROR overflow evaluating the requirement `Self: Trait`
+
+// This is a non-regression test for issue #115351, where a recursion limit of 0 caused an ICE.
+// compile-flags: -Ztrait-solver=next --crate-type=lib
+// check-fail
+
+#![recursion_limit = "0"]
+trait Trait {}
+impl Trait for u32 {}
+//~^ ERROR overflow evaluating the requirement `u32: Trait`
+//~| ERROR overflow evaluating the requirement `u32 well-formed`
diff --git a/tests/ui/traits/new-solver/overflow/recursion-limit-zero-issue-115351.stderr b/tests/ui/traits/new-solver/overflow/recursion-limit-zero-issue-115351.stderr
new file mode 100644
index 00000000000..16b25d90ace
--- /dev/null
+++ b/tests/ui/traits/new-solver/overflow/recursion-limit-zero-issue-115351.stderr
@@ -0,0 +1,27 @@
+error[E0275]: overflow evaluating the requirement `Self: Trait`
+   |
+   = help: consider increasing the recursion limit by adding a `#![recursion_limit = "2"]` attribute to your crate (`recursion_limit_zero_issue_115351`)
+
+error[E0275]: overflow evaluating the requirement `Self well-formed`
+   |
+   = help: consider increasing the recursion limit by adding a `#![recursion_limit = "2"]` attribute to your crate (`recursion_limit_zero_issue_115351`)
+
+error[E0275]: overflow evaluating the requirement `u32: Trait`
+  --> $DIR/recursion-limit-zero-issue-115351.rs:10:16
+   |
+LL | impl Trait for u32 {}
+   |                ^^^
+   |
+   = help: consider increasing the recursion limit by adding a `#![recursion_limit = "2"]` attribute to your crate (`recursion_limit_zero_issue_115351`)
+
+error[E0275]: overflow evaluating the requirement `u32 well-formed`
+  --> $DIR/recursion-limit-zero-issue-115351.rs:10:16
+   |
+LL | impl Trait for u32 {}
+   |                ^^^
+   |
+   = help: consider increasing the recursion limit by adding a `#![recursion_limit = "2"]` attribute to your crate (`recursion_limit_zero_issue_115351`)
+
+error: aborting due to 4 previous errors
+
+For more information about this error, try `rustc --explain E0275`.