[pypy-commit] pypy default: Test from issue1073.

[arigo]

Author: Armin Rigo <arigo at tunes.org>
Branch: 
Changeset: r52943:092ee39048af
Date: 2012-02-27 17:23 +0100
http://bitbucket.org/pypy/pypy/changeset/092ee39048af/

Log:	Test from issue1073.

diff --git a/pypy/module/pypyjit/test_pypy_c/test_00_model.py b/pypy/module/pypyjit/test_pypy_c/test_00_model.py
--- a/pypy/module/pypyjit/test_pypy_c/test_00_model.py
+++ b/pypy/module/pypyjit/test_pypy_c/test_00_model.py
@@ -60,6 +60,9 @@
                                 stdout=subprocess.PIPE,
                                 stderr=subprocess.PIPE)
         stdout, stderr = pipe.communicate()
+        if getattr(pipe, 'returncode', 0) < 0:
+            raise IOError("subprocess was killed by signal %d" % (
+                pipe.returncode,))
         if stderr.startswith('SKIP:'):
             py.test.skip(stderr)
         if stderr.startswith('debug_alloc.h:'):   # lldebug builds
diff --git a/pypy/module/pypyjit/test_pypy_c/test_alloc.py b/pypy/module/pypyjit/test_pypy_c/test_alloc.py
new file mode 100644
--- /dev/null
+++ b/pypy/module/pypyjit/test_pypy_c/test_alloc.py
@@ -0,0 +1,26 @@
+import py, sys
+from pypy.module.pypyjit.test_pypy_c.test_00_model import BaseTestPyPyC
+
+class TestAlloc(BaseTestPyPyC):
+
+    SIZES = dict.fromkeys([2 ** n for n in range(26)] +     # up to 32MB
+                          [2 ** n - 1 for n in range(26)])
+
+    def test_newstr_constant_size(self):
+        for size in TestAlloc.SIZES:
+            yield self.newstr_constant_size, size
+
+    def newstr_constant_size(self, size):
+        src = """if 1:
+                    N = %(size)d
+                    part_a = 'a' * N
+                    part_b = 'b' * N
+                    for i in xrange(20):
+                        ao = '%%s%%s' %% (part_a, part_b)
+                    def main():
+                        return 42
+""" % {'size': size}
+        log = self.run(src, [], threshold=10)
+        assert log.result == 42
+        loop, = log.loops_by_filename(self.filepath)
+        # assert did not crash