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148 lines
3.7 KiB
C
148 lines
3.7 KiB
C
/* Unit tests for hash-set.h.
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Copyright (C) 2015-2019 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#include "config.h"
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#include "system.h"
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#include "coretypes.h"
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#include "tm.h"
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#include "opts.h"
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#include "hash-set.h"
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#include "selftest.h"
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#if CHECKING_P
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namespace selftest {
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/* Construct a hash_set <const char *> and verify that various operations
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work correctly. */
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static void
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test_set_of_strings ()
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{
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hash_set <const char *> s;
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ASSERT_EQ (0, s.elements ());
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const char *red = "red";
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const char *green = "green";
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const char *blue = "blue";
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ASSERT_EQ (false, s.contains (red));
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for (hash_set<const char *>::iterator it = s.begin (); it != s.end (); ++it)
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ASSERT_EQ (true, false);
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/* Populate the hash_set. */
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ASSERT_EQ (false, s.add (red));
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ASSERT_EQ (false, s.add (green));
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ASSERT_EQ (false, s.add (blue));
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ASSERT_EQ (true, s.add (green));
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/* Verify that the values are now within the set. */
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ASSERT_EQ (true, s.contains (red));
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ASSERT_EQ (true, s.contains (green));
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ASSERT_EQ (true, s.contains (blue));
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ASSERT_EQ (3, s.elements ());
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/* Test removal. */
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s.remove (red);
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ASSERT_EQ (false, s.contains (red));
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ASSERT_EQ (true, s.contains (green));
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ASSERT_EQ (true, s.contains (blue));
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ASSERT_EQ (2, s.elements ());
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s.remove (red);
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ASSERT_EQ (false, s.contains (red));
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ASSERT_EQ (true, s.contains (green));
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ASSERT_EQ (true, s.contains (blue));
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ASSERT_EQ (2, s.elements ());
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int seen = 0;
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for (hash_set<const char *>::iterator it = s.begin (); it != s.end (); ++it)
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{
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int n = *it == green;
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if (n == 0)
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ASSERT_EQ (*it, blue);
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ASSERT_EQ (seen & (1 << n), 0);
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seen |= 1 << n;
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}
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ASSERT_EQ (seen, 3);
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hash_set <const char *, true> t;
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ASSERT_EQ (0, t.elements ());
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ASSERT_EQ (false, t.contains (red));
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for (hash_set<const char *, true>::iterator it = t.begin ();
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it != t.end (); ++it)
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ASSERT_EQ (true, false);
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/* Populate the hash_set. */
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ASSERT_EQ (false, t.add (red));
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ASSERT_EQ (false, t.add (green));
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ASSERT_EQ (false, t.add (blue));
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ASSERT_EQ (true, t.add (green));
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/* Verify that the values are now within the set. */
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ASSERT_EQ (true, t.contains (red));
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ASSERT_EQ (true, t.contains (green));
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ASSERT_EQ (true, t.contains (blue));
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ASSERT_EQ (3, t.elements ());
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seen = 0;
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for (hash_set<const char *, true>::iterator it = t.begin ();
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it != t.end (); ++it)
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{
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int n = 2;
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if (*it == green)
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n = 0;
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else if (*it == blue)
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n = 1;
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else
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ASSERT_EQ (*it, red);
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ASSERT_EQ (seen & (1 << n), 0);
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seen |= 1 << n;
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}
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ASSERT_EQ (seen, 7);
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/* Test removal. */
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t.remove (red);
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ASSERT_EQ (false, t.contains (red));
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ASSERT_EQ (true, t.contains (green));
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ASSERT_EQ (true, t.contains (blue));
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ASSERT_EQ (2, t.elements ());
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t.remove (red);
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ASSERT_EQ (false, t.contains (red));
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ASSERT_EQ (true, t.contains (green));
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ASSERT_EQ (true, t.contains (blue));
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ASSERT_EQ (2, t.elements ());
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}
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/* Run all of the selftests within this file. */
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void
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hash_set_tests_c_tests ()
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{
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test_set_of_strings ();
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}
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} // namespace selftest
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#endif /* #if CHECKING_P */
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