mirror of
https://github.com/prometheus/alertmanager
synced 2024-12-29 09:32:16 +00:00
607 lines
14 KiB
Go
607 lines
14 KiB
Go
// Copyright 2020 Prometheus Team
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package timeinterval
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import (
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"encoding/json"
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"reflect"
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"testing"
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"time"
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"gopkg.in/yaml.v2"
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)
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var timeIntervalTestCases = []struct {
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validTimeStrings []string
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invalidTimeStrings []string
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timeInterval TimeInterval
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}{
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{
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timeInterval: TimeInterval{},
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validTimeStrings: []string{
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"02 Jan 06 15:04 MST",
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"03 Jan 07 10:04 MST",
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"04 Jan 06 09:04 MST",
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},
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invalidTimeStrings: []string{},
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},
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{
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// 9am to 5pm, monday to friday
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timeInterval: TimeInterval{
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Times: []TimeRange{{StartMinute: 540, EndMinute: 1020}},
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Weekdays: []WeekdayRange{{InclusiveRange{Begin: 1, End: 5}}},
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},
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validTimeStrings: []string{
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"04 May 20 15:04 MST",
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"05 May 20 10:04 MST",
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"09 Jun 20 09:04 MST",
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},
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invalidTimeStrings: []string{
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"03 May 20 15:04 MST",
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"04 May 20 08:59 MST",
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"05 May 20 05:00 MST",
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},
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},
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{
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// Easter 2020
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timeInterval: TimeInterval{
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DaysOfMonth: []DayOfMonthRange{{InclusiveRange{Begin: 4, End: 6}}},
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Months: []MonthRange{{InclusiveRange{Begin: 4, End: 4}}},
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Years: []YearRange{{InclusiveRange{Begin: 2020, End: 2020}}},
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},
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validTimeStrings: []string{
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"04 Apr 20 15:04 MST",
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"05 Apr 20 00:00 MST",
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"06 Apr 20 23:05 MST",
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},
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invalidTimeStrings: []string{
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"03 May 18 15:04 MST",
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"03 Apr 20 23:59 MST",
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"04 Jun 20 23:59 MST",
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"06 Apr 19 23:59 MST",
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"07 Apr 20 00:00 MST",
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},
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},
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{
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// Check negative days of month, last 3 days of each month
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timeInterval: TimeInterval{
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DaysOfMonth: []DayOfMonthRange{{InclusiveRange{Begin: -3, End: -1}}},
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},
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validTimeStrings: []string{
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"31 Jan 20 15:04 MST",
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"30 Jan 20 15:04 MST",
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"29 Jan 20 15:04 MST",
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"30 Jun 20 00:00 MST",
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"29 Feb 20 23:05 MST",
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},
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invalidTimeStrings: []string{
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"03 May 18 15:04 MST",
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"27 Jan 20 15:04 MST",
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"03 Apr 20 23:59 MST",
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"04 Jun 20 23:59 MST",
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"06 Apr 19 23:59 MST",
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"07 Apr 20 00:00 MST",
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"01 Mar 20 00:00 MST",
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},
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},
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{
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// Check out of bound days are clamped to month boundaries
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timeInterval: TimeInterval{
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Months: []MonthRange{{InclusiveRange{Begin: 6, End: 6}}},
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DaysOfMonth: []DayOfMonthRange{{InclusiveRange{Begin: -31, End: 31}}},
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},
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validTimeStrings: []string{
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"30 Jun 20 00:00 MST",
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"01 Jun 20 00:00 MST",
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},
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invalidTimeStrings: []string{
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"31 May 20 00:00 MST",
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"1 Jul 20 00:00 MST",
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},
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},
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}
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var timeStringTestCases = []struct {
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timeString string
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TimeRange TimeRange
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expectError bool
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}{
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{
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timeString: "{'start_time': '00:00', 'end_time': '24:00'}",
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TimeRange: TimeRange{StartMinute: 0, EndMinute: 1440},
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expectError: false,
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},
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{
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timeString: "{'start_time': '01:35', 'end_time': '17:39'}",
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TimeRange: TimeRange{StartMinute: 95, EndMinute: 1059},
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expectError: false,
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},
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{
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timeString: "{'start_time': '09:35', 'end_time': '09:39'}",
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TimeRange: TimeRange{StartMinute: 575, EndMinute: 579},
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expectError: false,
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},
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{
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// Error: Begin and End times are the same
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timeString: "{'start_time': '17:31', 'end_time': '17:31'}",
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TimeRange: TimeRange{},
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expectError: true,
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},
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{
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// Error: End time out of range
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timeString: "{'start_time': '12:30', 'end_time': '24:01'}",
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TimeRange: TimeRange{},
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expectError: true,
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},
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{
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// Error: Start time greater than End time
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timeString: "{'start_time': '09:30', 'end_time': '07:41'}",
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TimeRange: TimeRange{},
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expectError: true,
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},
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{
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// Error: Start time out of range and greater than End time
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timeString: "{'start_time': '24:00', 'end_time': '17:41'}",
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TimeRange: TimeRange{},
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expectError: true,
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},
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{
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// Error: No range specified
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timeString: "{'start_time': '14:03'}",
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TimeRange: TimeRange{},
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expectError: true,
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},
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}
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var yamlUnmarshalTestCases = []struct {
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in string
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intervals []TimeInterval
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contains []string
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excludes []string
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expectError bool
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err string
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}{
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{
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// Simple business hours test
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in: `
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---
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- weekdays: ['monday:friday']
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times:
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- start_time: '09:00'
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end_time: '17:00'
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`,
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intervals: []TimeInterval{
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{
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Weekdays: []WeekdayRange{{InclusiveRange{Begin: 1, End: 5}}},
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Times: []TimeRange{{StartMinute: 540, EndMinute: 1020}},
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},
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},
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contains: []string{
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"08 Jul 20 09:00 MST",
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"08 Jul 20 16:59 MST",
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},
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excludes: []string{
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"08 Jul 20 05:00 MST",
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"08 Jul 20 08:59 MST",
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},
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expectError: false,
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},
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{
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// More advanced test with negative indices and ranges
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in: `
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---
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# Last week, excluding Saturday, of the first quarter of the year during business hours from 2020 to 2025 and 2030-2035
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- weekdays: ['monday:friday', 'sunday']
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months: ['january:march']
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days_of_month: ['-7:-1']
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years: ['2020:2025', '2030:2035']
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times:
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- start_time: '09:00'
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end_time: '17:00'
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`,
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intervals: []TimeInterval{
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{
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Weekdays: []WeekdayRange{{InclusiveRange{Begin: 1, End: 5}}, {InclusiveRange{Begin: 0, End: 0}}},
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Times: []TimeRange{{StartMinute: 540, EndMinute: 1020}},
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Months: []MonthRange{{InclusiveRange{1, 3}}},
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DaysOfMonth: []DayOfMonthRange{{InclusiveRange{-7, -1}}},
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Years: []YearRange{{InclusiveRange{2020, 2025}}, {InclusiveRange{2030, 2035}}},
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},
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},
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contains: []string{
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"27 Jan 21 09:00 MST",
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"28 Jan 21 16:59 MST",
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"29 Jan 21 13:00 MST",
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"31 Mar 25 13:00 MST",
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"31 Mar 25 13:00 MST",
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"31 Jan 35 13:00 MST",
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},
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excludes: []string{
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"30 Jan 21 13:00 MST", // Saturday
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"01 Apr 21 13:00 MST", // 4th month
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"30 Jan 26 13:00 MST", // 2026
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"31 Jan 35 17:01 MST", // After 5pm
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},
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expectError: false,
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},
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{
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in: `
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---
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- weekdays: ['monday:friday']
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times:
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- start_time: '09:00'
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end_time: '17:00'`,
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intervals: []TimeInterval{
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{
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Weekdays: []WeekdayRange{{InclusiveRange{Begin: 1, End: 5}}},
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Times: []TimeRange{{StartMinute: 540, EndMinute: 1020}},
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},
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},
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contains: []string{
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"01 Apr 21 13:00 GMT",
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},
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},
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{
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// Invalid start time.
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in: `
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---
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- times:
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- start_time: '01:99'
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end_time: '23:59'`,
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expectError: true,
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err: "couldn't parse timestamp 01:99, invalid format",
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},
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{
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// Invalid end time.
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in: `
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---
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- times:
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- start_time: '00:00'
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end_time: '99:99'`,
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expectError: true,
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err: "couldn't parse timestamp 99:99, invalid format",
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},
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{
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// Start day before end day.
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in: `
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---
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- weekdays: ['friday:monday']`,
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expectError: true,
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err: "start day cannot be before end day",
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},
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{
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// Invalid weekdays.
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in: `
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---
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- weekdays: ['blurgsday:flurgsday']
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`,
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expectError: true,
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err: "blurgsday is not a valid weekday",
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},
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{
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// Numeric weekdays aren't allowed.
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in: `
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---
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- weekdays: ['1:3']
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`,
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expectError: true,
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err: "1 is not a valid weekday",
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},
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{
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// Negative numeric weekdays aren't allowed.
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in: `
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---
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- weekdays: ['-2:-1']
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`,
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expectError: true,
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err: "-2 is not a valid weekday",
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},
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{
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// 0 day of month.
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in: `
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---
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- days_of_month: ['0']
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`,
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expectError: true,
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err: "0 is not a valid day of the month: out of range",
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},
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{
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// Start day of month < 0.
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in: `
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---
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- days_of_month: ['-50:-20']
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`,
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expectError: true,
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err: "-50 is not a valid day of the month: out of range",
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},
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{
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// End day of month > 31.
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in: `
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---
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- days_of_month: ['1:50']
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`,
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expectError: true,
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err: "50 is not a valid day of the month: out of range",
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},
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{
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// Negative indices should work.
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in: `
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---
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- days_of_month: ['1:-1']
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`,
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intervals: []TimeInterval{
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{
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DaysOfMonth: []DayOfMonthRange{{InclusiveRange{1, -1}}},
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},
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},
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expectError: false,
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},
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{
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// End day must be negative if begin day is negative.
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in: `
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---
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- days_of_month: ['-15:5']
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`,
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expectError: true,
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err: "end day must be negative if start day is negative",
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},
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{
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// Negative end date before positive postive start date.
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in: `
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---
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- days_of_month: ['10:-25']
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`,
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expectError: true,
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err: "end day -25 is always before start day 10",
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},
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{
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// Months should work regardless of case
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in: `
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---
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- months: ['January:december']
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`,
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expectError: false,
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intervals: []TimeInterval{
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{
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Months: []MonthRange{{InclusiveRange{1, 12}}},
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},
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},
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},
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{
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// Invalid start month.
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in: `
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---
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- months: ['martius:june']
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`,
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expectError: true,
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err: "martius is not a valid month",
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},
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{
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// Invalid end month.
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in: `
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---
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- months: ['march:junius']
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`,
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expectError: true,
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err: "junius is not a valid month",
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},
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{
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// Start month after end month.
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in: `
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---
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- months: ['december:january']
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`,
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expectError: true,
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err: "end month january is before start month december",
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},
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{
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// Start year after end year.
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in: `
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---
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- years: ['2022:2020']
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`,
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expectError: true,
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err: "end year 2020 is before start year 2022",
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},
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}
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func TestYamlUnmarshal(t *testing.T) {
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for _, tc := range yamlUnmarshalTestCases {
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var ti []TimeInterval
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err := yaml.Unmarshal([]byte(tc.in), &ti)
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if err != nil && !tc.expectError {
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t.Errorf("Received unexpected error: %v when parsing %v", err, tc.in)
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} else if err == nil && tc.expectError {
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t.Errorf("Expected error when unmarshalling %s but didn't receive one", tc.in)
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} else if err != nil && tc.expectError {
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if err.Error() != tc.err {
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t.Errorf("Incorrect error: Want %s, got %s", tc.err, err.Error())
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}
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continue
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}
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if !reflect.DeepEqual(ti, tc.intervals) {
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t.Errorf("Error unmarshalling %s: Want %+v, got %+v", tc.in, tc.intervals, ti)
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}
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for _, ts := range tc.contains {
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_t, _ := time.Parse(time.RFC822, ts)
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isContained := false
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for _, interval := range ti {
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if interval.ContainsTime(_t) {
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isContained = true
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}
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}
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if !isContained {
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t.Errorf("Expected intervals to contain time %s", _t)
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}
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}
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for _, ts := range tc.excludes {
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_t, _ := time.Parse(time.RFC822, ts)
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isContained := false
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for _, interval := range ti {
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if interval.ContainsTime(_t) {
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isContained = true
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}
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}
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if isContained {
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t.Errorf("Expected intervals to exclude time %s", _t)
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}
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}
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}
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}
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func TestContainsTime(t *testing.T) {
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for _, tc := range timeIntervalTestCases {
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for _, ts := range tc.validTimeStrings {
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_t, _ := time.Parse(time.RFC822, ts)
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if !tc.timeInterval.ContainsTime(_t) {
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t.Errorf("Expected period %+v to contain %+v", tc.timeInterval, _t)
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}
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}
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for _, ts := range tc.invalidTimeStrings {
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_t, _ := time.Parse(time.RFC822, ts)
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if tc.timeInterval.ContainsTime(_t) {
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t.Errorf("Period %+v not expected to contain %+v", tc.timeInterval, _t)
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}
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}
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}
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}
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func TestParseTimeString(t *testing.T) {
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for _, tc := range timeStringTestCases {
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var tr TimeRange
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err := yaml.Unmarshal([]byte(tc.timeString), &tr)
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if err != nil && !tc.expectError {
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t.Errorf("Received unexpected error: %v when parsing %v", err, tc.timeString)
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} else if err == nil && tc.expectError {
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t.Errorf("Expected error for invalid string %s but didn't receive one", tc.timeString)
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} else if !reflect.DeepEqual(tr, tc.TimeRange) {
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t.Errorf("Error parsing time string %s: Want %+v, got %+v", tc.timeString, tc.TimeRange, tr)
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}
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}
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}
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func TestYamlMarshal(t *testing.T) {
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for _, tc := range yamlUnmarshalTestCases {
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if tc.expectError {
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continue
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}
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var ti []TimeInterval
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err := yaml.Unmarshal([]byte(tc.in), &ti)
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if err != nil {
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t.Error(err)
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}
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out, err := yaml.Marshal(&ti)
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if err != nil {
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t.Error(err)
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}
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var ti2 []TimeInterval
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yaml.Unmarshal(out, &ti2)
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if !reflect.DeepEqual(ti, ti2) {
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t.Errorf("Re-marshalling %s produced a different TimeInterval.", tc.in)
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}
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}
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}
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// Test JSON marshalling by marshalling a time interval
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// and then unmarshalling to ensure they're identical
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func TestJsonMarshal(t *testing.T) {
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for _, tc := range yamlUnmarshalTestCases {
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if tc.expectError {
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continue
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}
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var ti []TimeInterval
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err := yaml.Unmarshal([]byte(tc.in), &ti)
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if err != nil {
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t.Error(err)
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}
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out, err := json.Marshal(&ti)
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if err != nil {
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t.Error(err)
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}
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var ti2 []TimeInterval
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json.Unmarshal(out, &ti2)
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if !reflect.DeepEqual(ti, ti2) {
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t.Errorf("Re-marshalling %s produced a different TimeInterval. Used:\n%s and got:\n%v", tc.in, out, ti2)
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}
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}
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}
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var completeTestCases = []struct {
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in string
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contains []string
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excludes []string
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}{
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{
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in: `
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---
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weekdays: ['monday:wednesday', 'saturday', 'sunday']
|
|
times:
|
|
- start_time: '13:00'
|
|
end_time: '15:00'
|
|
days_of_month: ['1', '10', '20:-1']
|
|
years: ['2020:2023']
|
|
months: ['january:march']
|
|
`,
|
|
contains: []string{
|
|
"10 Jan 21 13:00 GMT",
|
|
"30 Jan 21 14:24 GMT",
|
|
},
|
|
excludes: []string{
|
|
"09 Jan 21 13:00 GMT",
|
|
"20 Jan 21 12:59 GMT",
|
|
"02 Feb 21 13:00 GMT",
|
|
},
|
|
},
|
|
{
|
|
// Check for broken clamping (clamping begin date after end of month to the end of the month)
|
|
in: `
|
|
---
|
|
days_of_month: ['30:31']
|
|
years: ['2020:2023']
|
|
months: ['february']
|
|
`,
|
|
excludes: []string{
|
|
"28 Feb 21 13:00 GMT",
|
|
},
|
|
},
|
|
}
|
|
|
|
// Tests the entire flow from unmarshalling to containing a time
|
|
func TestTimeIntervalComplete(t *testing.T) {
|
|
for _, tc := range completeTestCases {
|
|
var ti TimeInterval
|
|
if err := yaml.Unmarshal([]byte(tc.in), &ti); err != nil {
|
|
t.Error(err)
|
|
}
|
|
for _, ts := range tc.contains {
|
|
tt, err := time.Parse(time.RFC822, ts)
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
if !ti.ContainsTime(tt) {
|
|
t.Errorf("Expected %s to contain %s", tc.in, ts)
|
|
}
|
|
}
|
|
for _, ts := range tc.excludes {
|
|
tt, err := time.Parse(time.RFC822, ts)
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
if ti.ContainsTime(tt) {
|
|
t.Errorf("Expected %s to exclude %s", tc.in, ts)
|
|
}
|
|
}
|
|
}
|
|
}
|