[Scipy-svn] r5316 - trunk/scipy/special/tests

[scipy-svn at scipy.org]

Author: cdavid
Date: 2009-01-02 01:52:43 -0600 (Fri, 02 Jan 2009)
New Revision: 5316

Modified:
   trunk/scipy/special/tests/test_basic.py
Log:
Add regression test for #834.

Modified: trunk/scipy/special/tests/test_basic.py
===================================================================
--- trunk/scipy/special/tests/test_basic.py	2009-01-01 01:12:34 UTC (rev 5315)
+++ trunk/scipy/special/tests/test_basic.py	2009-01-02 07:52:43 UTC (rev 5316)
@@ -128,6 +128,11 @@
         cephes.expi(1)
     def test_expn(self):
         cephes.expn(1,1)
+    def test_exp1_reg(self):
+        # Regression for #834
+        a = cephes.exp1(-complex(19.9999990))
+        b = cephes.exp1(-complex(19.9999991))
+        assert_array_almost_equal(a.imag, b.imag)
 
     def test_exp10(self):
         assert_approx_equal(cephes.exp10(2),100.0)