1 files changed, 47 insertions, 0 deletions
diff --git a/math/libm-test-acos.inc b/math/libm-test-acos.inc
new file mode 100644
index 0000000..c98da4f
--- /dev/null
+++ b/math/libm-test-acos.inc
@@ -0,0 +1,47 @@
+/* Test acos.
+   Copyright (C) 1997-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+static const struct test_f_f_data acos_test_data[] =
+  {
+    TEST_f_f (acos, plus_infty, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
+    TEST_f_f (acos, minus_infty, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
+    TEST_f_f (acos, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (acos, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (acos, snan_value, qnan_value, INVALID_EXCEPTION),
+    TEST_f_f (acos, -snan_value, qnan_value, INVALID_EXCEPTION),
+
+    /* |x| > 1: */
+    TEST_f_f (acos, 1.125L, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
+    TEST_f_f (acos, -1.125L, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
+    TEST_f_f (acos, max_value, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
+    TEST_f_f (acos, -max_value, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
+
+    AUTO_TESTS_f_f (acos),
+  };
+
+static void
+acos_test (void)
+{
+  ALL_RM_TEST (acos, 0, acos_test_data, RUN_TEST_LOOP_f_f, END);
+}
+
+/*
+ * Local Variables:
+ * mode:c
+ * End:
+ */