Add unit tests for possible_cpus_array_len

[urcu.git] / tests / unit / test_get_max_cpuid_from_mask.c

diff --git a/tests/unit/test_get_max_cpuid_from_mask.c b/tests/unit/test_get_max_cpuid_from_mask.c
new file mode 100644 (file)
index 0000000..435bb5c
--- /dev/null
+++ b/tests/unit/test_get_max_cpuid_from_mask.c
@@ -0,0 +1,77 @@
+/*
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * Copyright (C) 2022 Michael Jeanson <mjeanson@efficios.com>
+ */
+
+#include <string.h>
+
+#include "tap.h"
+
+#include "compat-smp.h"
+
+struct parse_test_data {
+       const char *buf;
+       int expected;
+};
+
+static struct parse_test_data parse_test_data[] = {
+       { "", -1 },
+       { "abc", -1 },
+       { ",,,", -1 },
+       { "--", -1 },
+       { ",", -1 },
+       { "-", -1 },
+       { "2147483647", -1 },
+       { "18446744073709551615", -1 },
+       { "0-2147483647", -1 },
+       { "0-18446744073709551615", -1 },
+       { "0", 0 },
+       { "1", 1 },
+       { "0-1", 1 },
+       { "1-3", 3 },
+       { "0,2", 2 },
+       { "1,2", 2 },
+       { "0,4-6,127", 127 },
+       { "0-4095", 4095 },
+
+       { "\n", -1 },
+       { "abc\n", -1 },
+       { ",,,\n", -1 },
+       { "--\n", -1 },
+       { ",\n", -1 },
+       { "-\n", -1 },
+       { "2147483647\n", -1 },
+       { "18446744073709551615\n", -1 },
+       { "0-2147483647\n", -1 },
+       { "0-18446744073709551615\n", -1 },
+       { "0\n", 0 },
+       { "1\n", 1 },
+       { "0-1\n", 1 },
+       { "1-3\n", 3 },
+       { "0,2\n", 2 },
+       { "1,2\n", 2 },
+       { "0,4-6,127\n", 127 },
+       { "0-4095\n", 4095 },
+};
+
+static int parse_test_data_len = sizeof(parse_test_data) / sizeof(parse_test_data[0]);
+
+int main(void)
+{
+       int ret, i;
+
+       plan_tests(parse_test_data_len);
+
+       diag("Testing smp helpers");
+
+       for (i = 0; i < parse_test_data_len; i++) {
+               ret = get_max_cpuid_from_mask(parse_test_data[i].buf,
+                               strlen(parse_test_data[i].buf));
+               ok(ret == parse_test_data[i].expected,
+                       "get_max_cpuid_from_mask '%s', expected: '%d', result: '%d'",
+                       parse_test_data[i].buf, parse_test_data[i].expected, ret);
+       }
+
+       return exit_status();
+}