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// Copyright 2022 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package procfs
import (
"testing"
"github.com/google/go-cmp/cmp"
)
func TestSysctlInts(t *testing.T) {
fs := getProcFixtures(t)
for _, tc := range []struct {
sysctl string
want []int
}{
{"kernel.random.entropy_avail", []int{3943}},
{"vm.lowmem_reserve_ratio", []int{256, 256, 32, 0, 0}},
} {
t.Run(tc.sysctl, func(t *testing.T) {
got, err := fs.SysctlInts(tc.sysctl)
if err != nil {
t.Fatal(err)
}
if diff := cmp.Diff(tc.want, got); diff != "" {
t.Fatalf("unexpected syscall value(-want +got):\n%s", diff)
}
})
}
}
func TestSysctlStrings(t *testing.T) {
fs := getProcFixtures(t)
for _, tc := range []struct {
sysctl string
want []string
}{
{"kernel.seccomp.actions_avail", []string{"kill_process", "kill_thread", "trap", "errno", "trace", "log", "allow"}},
} {
t.Run(tc.sysctl, func(t *testing.T) {
got, err := fs.SysctlStrings(tc.sysctl)
if err != nil {
t.Fatal(err)
}
if diff := cmp.Diff(tc.want, got); diff != "" {
t.Fatalf("unexpected syscall value(-want +got):\n%s", diff)
}
})
}
}
func TestSysctlIntsError(t *testing.T) {
fs := getProcFixtures(t)
for _, tc := range []struct {
sysctl string
want string
}{
{"kernel.seccomp.actions_avail", "error parsing file: field 0 in sysctl kernel.seccomp.actions_avail is not a valid int: strconv.ParseInt: parsing \"kill_process\": invalid syntax"},
} {
t.Run(tc.sysctl, func(t *testing.T) {
_, err := fs.SysctlInts(tc.sysctl)
if err == nil {
t.Fatal("Error Parsing File: expected error")
}
if diff := cmp.Diff(tc.want, err.Error()); diff != "" {
t.Fatalf("unexpected syscall value(-want +got):\n%s", diff)
}
})
}
}
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