mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
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103 lines
2.7 KiB
Go
103 lines
2.7 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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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 resource
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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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"testing"
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"github.com/stretchr/testify/assert"
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)
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func TestVisitorHttpGet(t *testing.T) {
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// Test retries on errors
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i := 0
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expectedErr := fmt.Errorf("Failed to get http")
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actualBytes, actualErr := readHttpWithRetries(func(url string) (int, string, io.ReadCloser, error) {
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assert.Equal(t, "hello", url)
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i++
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if i > 2 {
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return 0, "", nil, expectedErr
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}
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return 0, "", nil, fmt.Errorf("Unexpected error")
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}, 0, "hello", 3)
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assert.Equal(t, expectedErr, actualErr)
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assert.Nil(t, actualBytes)
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assert.Equal(t, 3, i)
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// Test that 500s are retried.
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i = 0
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actualBytes, actualErr = readHttpWithRetries(func(url string) (int, string, io.ReadCloser, error) {
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assert.Equal(t, "hello", url)
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i++
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return 501, "Status", nil, nil
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}, 0, "hello", 3)
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assert.Error(t, actualErr)
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assert.Nil(t, actualBytes)
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assert.Equal(t, 3, i)
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// Test that 300s are not retried
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i = 0
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actualBytes, actualErr = readHttpWithRetries(func(url string) (int, string, io.ReadCloser, error) {
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assert.Equal(t, "hello", url)
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i++
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return 300, "Status", nil, nil
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}, 0, "hello", 3)
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assert.Error(t, actualErr)
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assert.Nil(t, actualBytes)
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assert.Equal(t, 1, i)
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// Test attempt count is respected
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i = 0
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actualBytes, actualErr = readHttpWithRetries(func(url string) (int, string, io.ReadCloser, error) {
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assert.Equal(t, "hello", url)
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i++
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return 501, "Status", nil, nil
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}, 0, "hello", 1)
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assert.Error(t, actualErr)
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assert.Nil(t, actualBytes)
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assert.Equal(t, 1, i)
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// Test attempts less than 1 results in an error
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i = 0
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b := bytes.Buffer{}
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actualBytes, actualErr = readHttpWithRetries(func(url string) (int, string, io.ReadCloser, error) {
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return 200, "Status", ioutil.NopCloser(&b), nil
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}, 0, "hello", 0)
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assert.Error(t, actualErr)
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assert.Nil(t, actualBytes)
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assert.Equal(t, 0, i)
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// Test Success
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i = 0
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b = bytes.Buffer{}
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actualBytes, actualErr = readHttpWithRetries(func(url string) (int, string, io.ReadCloser, error) {
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assert.Equal(t, "hello", url)
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i++
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if i > 1 {
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return 200, "Status", ioutil.NopCloser(&b), nil
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}
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return 501, "Status", nil, nil
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}, 0, "hello", 3)
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assert.Nil(t, actualErr)
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assert.NotNil(t, actualBytes)
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assert.Equal(t, 2, i)
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}
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