180 lines
3.7 KiB
Go
180 lines
3.7 KiB
Go
// Copyright 2019 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 notify
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import (
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"bytes"
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"fmt"
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"io"
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"io/ioutil"
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"net/http"
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"testing"
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"github.com/stretchr/testify/require"
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)
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func TestTruncate(t *testing.T) {
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testCases := []struct {
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in string
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n int
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out string
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trunc bool
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}{
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{
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in: "",
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n: 5,
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out: "",
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trunc: false,
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},
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{
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in: "abcde",
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n: 2,
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out: "ab",
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trunc: true,
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},
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{
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in: "abcde",
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n: 4,
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out: "a...",
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trunc: true,
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},
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{
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in: "abcde",
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n: 5,
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out: "abcde",
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trunc: false,
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},
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{
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in: "abcdefgh",
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n: 5,
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out: "ab...",
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trunc: true,
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},
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{
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in: "a⌘cde",
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n: 5,
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out: "a⌘cde",
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trunc: false,
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},
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{
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in: "a⌘cdef",
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n: 5,
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out: "a⌘...",
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trunc: true,
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},
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}
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for _, tc := range testCases {
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t.Run(fmt.Sprintf("truncate(%s,%d)", tc.in, tc.n), func(t *testing.T) {
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s, trunc := Truncate(tc.in, tc.n)
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require.Equal(t, tc.trunc, trunc)
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require.Equal(t, tc.out, s)
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})
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}
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}
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type brokenReader struct{}
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func (b brokenReader) Read([]byte) (int, error) {
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return 0, fmt.Errorf("some error")
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}
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func TestRetrierCheck(t *testing.T) {
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for _, tc := range []struct {
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retrier Retrier
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status int
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body io.Reader
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retry bool
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expectedErr string
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}{
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{
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retrier: Retrier{},
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status: http.StatusOK,
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body: bytes.NewBuffer([]byte("ok")),
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retry: false,
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},
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{
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retrier: Retrier{},
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status: http.StatusNoContent,
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retry: false,
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},
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{
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retrier: Retrier{},
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status: http.StatusBadRequest,
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retry: false,
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expectedErr: "unexpected status code 400",
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},
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{
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retrier: Retrier{RetryCodes: []int{http.StatusTooManyRequests}},
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status: http.StatusBadRequest,
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body: bytes.NewBuffer([]byte("invalid request")),
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retry: false,
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expectedErr: "unexpected status code 400: invalid request",
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},
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{
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retrier: Retrier{RetryCodes: []int{http.StatusTooManyRequests}},
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status: http.StatusTooManyRequests,
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retry: true,
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expectedErr: "unexpected status code 429",
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},
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{
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retrier: Retrier{},
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status: http.StatusServiceUnavailable,
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body: bytes.NewBuffer([]byte("retry later")),
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retry: true,
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expectedErr: "unexpected status code 503: retry later",
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},
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{
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retrier: Retrier{},
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status: http.StatusBadGateway,
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body: &brokenReader{},
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retry: true,
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expectedErr: "unexpected status code 502",
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},
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{
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retrier: Retrier{CustomDetailsFunc: func(status int, b io.Reader) string {
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if status != http.StatusServiceUnavailable {
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return "invalid"
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}
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bs, _ := ioutil.ReadAll(b)
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return fmt.Sprintf("server response is %q", string(bs))
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}},
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status: http.StatusServiceUnavailable,
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body: bytes.NewBuffer([]byte("retry later")),
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retry: true,
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expectedErr: "unexpected status code 503: server response is \"retry later\"",
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},
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} {
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t.Run("", func(t *testing.T) {
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retry, err := tc.retrier.Check(tc.status, tc.body)
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require.Equal(t, tc.retry, retry)
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if tc.expectedErr == "" {
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require.NoError(t, err)
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return
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}
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require.EqualError(t, err, tc.expectedErr)
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})
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}
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}
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