From 59426c41c37bb09b66f1153a0f0c0e96c1db459b Mon Sep 17 00:00:00 2001
From: Guillaume Horel <guillaume.horel@serenitascapital.com>
Date: Tue, 26 Jul 2016 17:26:44 -0400
Subject: add test to prevent segfault

---
 pyisda/curve.pyx | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/pyisda/curve.pyx b/pyisda/curve.pyx
index 6ceee57..f33db25 100644
--- a/pyisda/curve.pyx
+++ b/pyisda/curve.pyx
@@ -183,11 +183,13 @@ cdef class SpreadCurve(Curve):
         cdef TDate* end_dates_c = <TDate*>malloc(len(end_dates) * sizeof(TDate))
         self._thisptr = NULL
         cdef size_t i
-
+        if cash_settle_date < yc.inspect()['base_date']:
+            raise ValueError("cash_settle_date: {0} is anterior to yc's base_date: {1}".
+                             format(cash_settle_date, yc.inspect()['base_date']))
         for i, d in enumerate(end_dates):
             end_dates_c[i] = pydate_to_TDate(d)
-        cdef TStubMethod stub_type
 
+        cdef TStubMethod stub_type
         if JpmcdsStringToStubMethod(b"f/s", &stub_type) != 0:
             raise ValueError("can't convert stub")
 
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