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+/* Unit tests for hash-map.h.
+ Copyright (C) 2015-2016 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC 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, or (at your option) any later
+version.
+
+GCC 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 GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
+#include "opts.h"
+#include "signop.h"
+#include "hash-set.h"
+#include "fixed-value.h"
+#include "alias.h"
+#include "flags.h"
+#include "symtab.h"
+#include "tree-core.h"
+#include "stor-layout.h"
+#include "tree.h"
+#include "stringpool.h"
+#include "selftest.h"
+
+#if CHECKING_P
+
+static void
+test_map_of_strings_to_int ()
+{
+ hash_map <const char *, int> m;
+
+ const char *ostrich = "ostrich";
+ const char *elephant = "elephant";
+ const char *ant = "ant";
+ const char *spider = "spider";
+ const char *millipede = "Illacme plenipes";
+ const char *eric = "half a bee";
+
+ /* A fresh hash_map should be empty. */
+ ASSERT_EQ (0, m.elements ());
+ ASSERT_EQ (NULL, m.get (ostrich));
+
+ /* Populate the hash_map. */
+ ASSERT_EQ (false, m.put (ostrich, 2));
+ ASSERT_EQ (false, m.put (elephant, 4));
+ ASSERT_EQ (false, m.put (ant, 6));
+ ASSERT_EQ (false, m.put (spider, 8));
+ ASSERT_EQ (false, m.put (millipede, 750));
+ ASSERT_EQ (false, m.put (eric, 3));
+
+ /* Verify that we can recover the stored values. */
+ ASSERT_EQ (6, m.elements ());
+ ASSERT_EQ (2, *m.get (ostrich));
+ ASSERT_EQ (4, *m.get (elephant));
+ ASSERT_EQ (6, *m.get (ant));
+ ASSERT_EQ (8, *m.get (spider));
+ ASSERT_EQ (750, *m.get (millipede));
+ ASSERT_EQ (3, *m.get (eric));
+
+ /* Verify removing an item. */
+ m.remove (eric);
+ ASSERT_EQ (5, m.elements ());
+ ASSERT_EQ (NULL, m.get (eric));
+}
+
+namespace selftest {
+
+void
+hash_map_tests_c_tests ()
+{
+ test_map_of_strings_to_int ();
+}
+
+} // namespace selftest
+
+#endif /* CHECKING_P */