/*
 * Copyright 2022 the Pacemaker project contributors
 *
 * The version control history for this file may have further details.
 *
 * This source code is licensed under the GNU General Public License version 2
 * or later (GPLv2+) WITHOUT ANY WARRANTY.
 */

#include <crm_internal.h>

#include <crm/common/unittest_internal.h>

static void
null_ptr(void **state)
{
    pcmk__assert_asserts(pcmk__numeric_strcasecmp(NULL, NULL));
    pcmk__assert_asserts(pcmk__numeric_strcasecmp("a", NULL));
    pcmk__assert_asserts(pcmk__numeric_strcasecmp(NULL, "a"));
}

static void
no_numbers(void **state)
{
    /* All comparisons are done case-insensitively. */
    assert_int_equal(pcmk__numeric_strcasecmp("abcd", "efgh"), -1);
    assert_int_equal(pcmk__numeric_strcasecmp("abcd", "abcd"), 0);
    assert_int_equal(pcmk__numeric_strcasecmp("efgh", "abcd"), 1);

    assert_int_equal(pcmk__numeric_strcasecmp("AbCd", "eFgH"), -1);
    assert_int_equal(pcmk__numeric_strcasecmp("ABCD", "abcd"), 0);
    assert_int_equal(pcmk__numeric_strcasecmp("EFgh", "ABcd"), 1);
}

static void
trailing_numbers(void **state)
{
    assert_int_equal(pcmk__numeric_strcasecmp("node1", "node2"), -1);
    assert_int_equal(pcmk__numeric_strcasecmp("node1", "node1"), 0);
    assert_int_equal(pcmk__numeric_strcasecmp("node2", "node1"), 1);

    assert_int_equal(pcmk__numeric_strcasecmp("node1", "node10"), -1);
    assert_int_equal(pcmk__numeric_strcasecmp("node10", "node10"), 0);
    assert_int_equal(pcmk__numeric_strcasecmp("node10", "node1"), 1);

    assert_int_equal(pcmk__numeric_strcasecmp("node10", "remotenode9"), -1);
    assert_int_equal(pcmk__numeric_strcasecmp("remotenode9", "node10"), 1);

    /* Longer numbers sort higher than shorter numbers. */
    assert_int_equal(pcmk__numeric_strcasecmp("node001", "node1"), 1);
    assert_int_equal(pcmk__numeric_strcasecmp("node1", "node001"), -1);
}

static void
middle_numbers(void **state)
{
    assert_int_equal(pcmk__numeric_strcasecmp("node1abc", "node1def"), -1);
    assert_int_equal(pcmk__numeric_strcasecmp("node1def", "node1abc"), 1);

    assert_int_equal(pcmk__numeric_strcasecmp("node1abc", "node2abc"), -1);
    assert_int_equal(pcmk__numeric_strcasecmp("node2abc", "node1abc"), 1);
}

static void
unequal_lengths(void **state)
{
    assert_int_equal(pcmk__numeric_strcasecmp("node-ab", "node-abc"), -1);
    assert_int_equal(pcmk__numeric_strcasecmp("node-abc", "node-ab"), 1);

    assert_int_equal(pcmk__numeric_strcasecmp("node1ab", "node1abc"), -1);
    assert_int_equal(pcmk__numeric_strcasecmp("node1abc", "node1ab"), 1);
}

PCMK__UNIT_TEST(NULL, NULL,
                cmocka_unit_test(null_ptr),
                cmocka_unit_test(no_numbers),
                cmocka_unit_test(trailing_numbers),
                cmocka_unit_test(middle_numbers),
                cmocka_unit_test(unequal_lengths))