mirror of
https://github.com/kubernetes/node-problem-detector.git
synced 2026-02-14 18:09:57 +00:00
111 lines
2.7 KiB
Go
111 lines
2.7 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package systemlogmonitor
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import (
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"reflect"
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"testing"
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"k8s.io/node-problem-detector/pkg/systemlogmonitor/types"
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)
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func TestPush(t *testing.T) {
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for c, test := range []struct {
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max int
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logs []string
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expected string
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}{
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{
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max: 1,
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logs: []string{"a", "b"},
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expected: "b",
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},
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{
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max: 2,
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logs: []string{"a", "b"},
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expected: "a\nb",
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},
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{
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max: 2,
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logs: []string{"a", "b", "c"},
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expected: "b\nc",
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},
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{
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max: 2,
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logs: []string{"a", "b", "c", "d"},
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expected: "c\nd",
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},
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} {
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b := NewLogBuffer(test.max)
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for _, log := range test.logs {
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b.Push(&types.Log{Message: log})
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}
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got := b.String()
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if test.expected != got {
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t.Errorf("case %d: expected %q, got %q", c+1, test.expected, got)
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}
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}
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}
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func TestMatch(t *testing.T) {
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max := 4
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for c, test := range []struct {
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logs []string
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exprs []string
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expected [][]string
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}{
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{
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// Buffer not full
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logs: []string{"a1", "b2"},
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exprs: []string{
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"a1", // Not including the last line, should not match
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"b1", // Not match
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"b2", // match
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`\w{2}`, // Regexp should work
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"a1\nb2", // Including the last line, should match
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`a1b2`, // No new line, should not match
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},
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expected: [][]string{{}, {}, {"b2"}, {"b2"}, {"a1", "b2"}, {}},
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},
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{
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// Buffer full
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logs: []string{"a1", "b2", "c3", "d4", "e5"},
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exprs: []string{
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"(?s)a1.+", // Rotate out, should not match
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`[a-z]\d\n[a-z]\d`, // New line should work, and only the one contains the last line should match
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`[a-z]\d`, // Multiple match, only the one contains the last line should match
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},
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expected: [][]string{{}, {"d4", "e5"}, {"e5"}},
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},
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} {
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b := NewLogBuffer(max)
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for _, log := range test.logs {
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b.Push(&types.Log{Message: log})
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}
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for i, expr := range test.exprs {
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logs := b.Match(expr)
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got := []string{}
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for _, log := range logs {
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got = append(got, log.Message)
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}
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if !reflect.DeepEqual(test.expected[i], got) {
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t.Errorf("case %d.%d: expected %v, got %v", c+1, i+1, test.expected[i], got)
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}
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}
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}
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}
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