From 20011a7a1c1f08644cd82a3c3e1d57cba9980695 Mon Sep 17 00:00:00 2001
From: Andrew Kelley <superjoe30@gmail.com>
Date: Fri, 9 Mar 2018 21:05:54 -0500
Subject: [PATCH] add behavior test for coroutine frame allocation failure

---
 test/cases/coroutines.zig | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/test/cases/coroutines.zig b/test/cases/coroutines.zig
index d5469a5d03..12235cf40b 100644
--- a/test/cases/coroutines.zig
+++ b/test/cases/coroutines.zig
@@ -130,3 +130,16 @@ fn early_seq(c: u8) void {
     early_points[early_seq_index] = c;
     early_seq_index += 1;
 }
+
+test "coro allocation failure" {
+    var failing_allocator = std.debug.FailingAllocator.init(std.debug.global_allocator, 0);
+    if (async(&failing_allocator.allocator) asyncFuncThatNeverGetsRun()) {
+        @panic("expected allocation failure");
+    } else |err| switch (err) {
+        error.OutOfMemory => {},
+    }
+}
+
+async fn asyncFuncThatNeverGetsRun() void {
+    @panic("coro frame allocation should fail");
+}