Tests for module 'jn'.

diff --git a/ChangeLog b/ChangeLog
index 153ea5c..e1636b3 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2010-01-24  Bruno Haible  <bruno@clisp.org>
 
+       Tests for module 'jn'.
+       * modules/jn-tests: New file.
+       * tests/test-jn.c: New file.
+
        Tests for module 'j1'.
        * modules/j1-tests: New file.
        * tests/test-j1.c: New file.

diff --git a/modules/jn-tests b/modules/jn-tests
new file mode 100644 (file)
index 0000000..b5bb49d
--- /dev/null
+++ b/modules/jn-tests
@@ -0,0 +1,13 @@
+Files:
+tests/test-jn.c
+tests/signature.h
+tests/macros.h
+
+Depends-on:
+
+configure.ac:
+
+Makefile.am:
+TESTS += test-jn
+check_PROGRAMS += test-jn
+test_jn_LDADD = $(LDADD) @JN_LIBM@

diff --git a/tests/test-jn.c b/tests/test-jn.c
new file mode 100644 (file)
index 0000000..c256371
--- /dev/null
+++ b/tests/test-jn.c
@@ -0,0 +1,90 @@
+/* Test of jn() function.
+   Copyright (C) 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2010.  */
+
+#include <config.h>
+
+#include <math.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (jn, double, (int, double));
+
+#include "macros.h"
+
+volatile double x;
+double y;
+
+int
+main ()
+{
+  /* A particular value.  */
+  x = 3.8;
+  y = jn (0, x);
+  ASSERT (y >= -0.4025564102 && y <= -0.4025564101);
+
+  /* A particular value.  */
+  x = 3.8;
+  y = jn (1, x);
+  ASSERT (y >= 0.0128210029 && y <= 0.0128210030);
+
+  /* A particular value.  */
+  x = 3.8;
+  y = jn (2, x);
+  ASSERT (y >= 0.4093043064 && y <= 0.4093043065);
+
+  /* A particular value.  */
+  x = 3.8;
+  y = jn (3, x);
+  ASSERT (y >= 0.4180256354 && y <= 0.4180256355);
+
+  /* A particular value.  */
+  x = 3.8;
+  y = jn (4, x);
+  ASSERT (y >= 0.2507361705 && y <= 0.2507361706);
+
+  /* A particular value.  */
+  x = 3.8;
+  y = jn (5, x);
+  ASSERT (y >= 0.1098399867 && y <= 0.1098399868);
+
+  /* A particular value.  */
+  x = 3.8;
+  y = jn (6, x);
+  ASSERT (y >= 0.0383164262 && y <= 0.0383164263);
+
+  /* A particular value.  */
+  x = 3.8;
+  y = jn (7, x);
+  ASSERT (y >= 0.0111592540 && y <= 0.0111592541);
+
+  /* A particular value.  */
+  x = 3.8;
+  y = jn (8, x);
+  ASSERT (y >= 0.0027966149 && y <= 0.0027966150);
+
+  /* A particular value.  */
+  x = 3.8;
+  y = jn (9, x);
+  ASSERT (y >= 0.0006159669 && y <= 0.0006159670);
+
+  /* A particular value.  */
+  x = 3.8;
+  y = jn (10, x);
+  ASSERT (y >= 0.0001211233 && y <= 0.0001211234);
+
+  return 0;
+}