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child_path returns a pointer to the first component in a child path that comes after a parent path. This does not depend on trying to stat() the paths since they may describe remote paths but instead relies on filename parsing. The function requires that the child path describe a filename that contains at least one component below the parent path and returns a pointer to the first component. gdb/ChangeLog: * Makefile.in (SUBDIR_UNITTESTS_SRCS): Add unittests/child-path-selftests.c. * common/pathstuff.c (child_path): New function. * common/pathstuff.h (child_path): New prototype. * unittests/child-path-selftests.c: New file.
69 lines
2.2 KiB
C
69 lines
2.2 KiB
C
/* Self tests for child_path for GDB, the GNU debugger.
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Copyright (C) 2019 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License 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 this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "common/pathstuff.h"
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#include "common/selftest.h"
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namespace selftests {
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namespace child_path {
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/* Verify the result of a single child_path test. */
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static bool
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child_path_check (const char *parent, const char *child, const char *expected)
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{
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const char *result = ::child_path (parent, child);
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if (result == NULL || expected == NULL)
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return result == expected;
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return strcmp (result, expected) == 0;
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}
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/* Test child_path. */
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static void
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test ()
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{
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SELF_CHECK (child_path_check ("/one", "/two", NULL));
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SELF_CHECK (child_path_check ("/one", "/one", NULL));
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SELF_CHECK (child_path_check ("/one", "/one/", NULL));
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SELF_CHECK (child_path_check ("/one", "/one//", NULL));
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SELF_CHECK (child_path_check ("/one", "/one/two", "two"));
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SELF_CHECK (child_path_check ("/one/", "/two", NULL));
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SELF_CHECK (child_path_check ("/one/", "/one", NULL));
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SELF_CHECK (child_path_check ("/one/", "/one/", NULL));
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SELF_CHECK (child_path_check ("/one/", "/one//", NULL));
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SELF_CHECK (child_path_check ("/one/", "/one/two", "two"));
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SELF_CHECK (child_path_check ("/one/", "/one//two", "two"));
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SELF_CHECK (child_path_check ("/one/", "/one//two/", "two/"));
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SELF_CHECK (child_path_check ("/one", "/onetwo", NULL));
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SELF_CHECK (child_path_check ("/one", "/onetwo/three", NULL));
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}
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}
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}
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void
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_initialize_child_path_selftests ()
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{
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selftests::register_test ("child_path",
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selftests::child_path::test);
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}
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