[commit: testsuite] master: Test Trac #7931 (1ed0be8)

[Simon Peyton Jones]

Repository : ssh://darcs.haskell.org//srv/darcs/testsuite

On branch  : master

https://github.com/ghc/testsuite/commit/1ed0be84d39a488d36bedffcc1a91be1bb39d52a

>---------------------------------------------------------------

commit 1ed0be84d39a488d36bedffcc1a91be1bb39d52a
Author: Simon Peyton Jones <simonpj at microsoft.com>
Date:   Mon May 27 17:32:45 2013 +0100

    Test Trac #7931

>---------------------------------------------------------------

 tests/deriving/should_run/T7931.hs     |    7 +++++++
 tests/deriving/should_run/T7931.stderr |    1 +
 tests/deriving/should_run/all.T        |    1 +
 3 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/tests/deriving/should_run/T7931.hs b/tests/deriving/should_run/T7931.hs
new file mode 100644
index 0000000..052b682
--- /dev/null
+++ b/tests/deriving/should_run/T7931.hs
@@ -0,0 +1,7 @@
+{-# LANGUAGE StandaloneDeriving #-} 
+module Main where 
+ 
+data A 
+deriving instance Read A 
+ 
+main = seq (read "" :: A) (return ()) 
diff --git a/tests/deriving/should_run/T7931.stderr b/tests/deriving/should_run/T7931.stderr
new file mode 100644
index 0000000..74be9c9
--- /dev/null
+++ b/tests/deriving/should_run/T7931.stderr
@@ -0,0 +1 @@
+T7931: Derived Read on empty data type
diff --git a/tests/deriving/should_run/all.T b/tests/deriving/should_run/all.T
index af4bd72..cfef4c3 100644
--- a/tests/deriving/should_run/all.T
+++ b/tests/deriving/should_run/all.T
@@ -34,4 +34,5 @@ test('T4528a', normal, compile_and_run, [''])
 test('T5041', normal, compile_and_run, [''])
 test('T5628', exit_code(1), compile_and_run, [''])
 test('T5712', normal, compile_and_run, [''])
+test('T7931', exit_code(1), compile_and_run, [''])