Add unit tests for possible_cpus_array_len

[userspace-rcu.git] / tests / unit / test_get_max_cpuid_from_sysfs

diff --git a/tests/unit/test_get_max_cpuid_from_sysfs b/tests/unit/test_get_max_cpuid_from_sysfs
new file mode 100755 (executable)
index 0000000..230a51c
--- /dev/null
+++ b/tests/unit/test_get_max_cpuid_from_sysfs
@@ -0,0 +1,89 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+if [ "x${URCU_TESTS_SRCDIR:-}" != "x" ]; then
+       UTILSSH="$URCU_TESTS_SRCDIR/utils/utils.sh"
+else
+       UTILSSH="$(dirname "$0")/../utils/utils.sh"
+fi
+
+# shellcheck source=../utils/utils.sh
+source "$UTILSSH"
+
+# shellcheck source=../../utils/tap.sh
+source "$URCU_TESTS_SRCDIR/utils/tap.sh"
+
+CURDIR="${URCU_TESTS_BUILDDIR}/unit"
+
+STD_OUTPUT="/dev/null"
+STD_ERROR="/dev/null"
+
+NUM_TESTS=13
+
+TESTDIR=$(mktemp -d)
+
+populate_testdir() {
+       local cpus=("$@")
+
+       mkdir "$TESTDIR"
+
+       for i in "${cpus[@]}"; do
+               mkdir "$TESTDIR/$i"
+       done
+}
+
+test_get_max_cpuid_from_sysfs() {
+       local num_cpus=$1
+       shift
+       local current_cpus=("$@")
+       local result
+
+       populate_testdir "${current_cpus[@]}" >"$STD_OUTPUT" 2>"$STD_ERROR"
+       result=$("${CURDIR}/get_max_cpuid_from_sysfs" "$TESTDIR")
+       is "$result" "$num_cpus" "get_max_cpuid_from_sysfs - cpu set: '${current_cpus[*]}', expected: '$num_cpus', result: '$result'"
+       rm -rf "$TESTDIR"
+}
+
+plan_tests $NUM_TESTS
+
+diag "get_max_cpuid_from_sysfs"
+
+test_data=(0 "cpu0")
+test_get_max_cpuid_from_sysfs "${test_data[@]}"
+
+test_data=(1 "cpu0" "cpu1")
+test_get_max_cpuid_from_sysfs "${test_data[@]}"
+
+test_data=(1 "cpu1" "cpu0")
+test_get_max_cpuid_from_sysfs "${test_data[@]}"
+
+test_data=(3 "cpu3")
+test_get_max_cpuid_from_sysfs "${test_data[@]}"
+
+test_data=(99 "cpu99")
+test_get_max_cpuid_from_sysfs "${test_data[@]}"
+
+test_data=(3 "cpu0" "cpu3")
+test_get_max_cpuid_from_sysfs "${test_data[@]}"
+
+test_data=(3 "cpufreq" "cpuidle" "cpu0" "cpu1" "cpu2" "cpu3")
+test_get_max_cpuid_from_sysfs "${test_data[@]}"
+
+test_data=(0 "cpu" "cpu0")
+test_get_max_cpuid_from_sysfs "${test_data[@]}"
+
+test_data=(5 "cpu" "cpu5")
+test_get_max_cpuid_from_sysfs "${test_data[@]}"
+
+
+test_data=(-1 "toto")
+test_get_max_cpuid_from_sysfs "${test_data[@]}"
+
+test_data=(-1 "cpu")
+test_get_max_cpuid_from_sysfs "${test_data[@]}"
+
+test_data=(-1 "cpua" "cpud")
+test_get_max_cpuid_from_sysfs "${test_data[@]}"
+
+test_data=(-1 "cpufreq" "cpuidle")
+test_get_max_cpuid_from_sysfs "${test_data[@]}"