Add optional, external tests for floating point parsing.

Running these tests takes hours, so they are not run by @bors.

1 files changed, 19 insertions, 0 deletions

diff --git a/src/etc/test-float-parse/u32-small.rs b/src/etc/test-float-parse/u32-small.rs
new file mode 100644
index 00000000000..a4e8488e745
--- /dev/null
+++ b/src/etc/test-float-parse/u32-small.rs
@@ -0,0 +1,19 @@
+// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+mod _common;
+
+use _common::validate;
+
+fn main() {
+    for i in 0..(1 << 19) {
+        validate(i.to_string());
+    }
+}