[VOL-2235] Mocks and interfaces for rw-core
This update consists of mocks that are used by the rw-core
during unit testing. It also includes interfaces used for unit
tests.
Change-Id: I20ca1455c358113c3aa897acc6355e0ddbc614b7
diff --git a/vendor/github.com/prometheus/client_golang/prometheus/promhttp/delegator.go b/vendor/github.com/prometheus/client_golang/prometheus/promhttp/delegator.go
new file mode 100644
index 0000000..fa53568
--- /dev/null
+++ b/vendor/github.com/prometheus/client_golang/prometheus/promhttp/delegator.go
@@ -0,0 +1,357 @@
+// Copyright 2017 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 promhttp
+
+import (
+ "bufio"
+ "io"
+ "net"
+ "net/http"
+)
+
+const (
+ closeNotifier = 1 << iota
+ flusher
+ hijacker
+ readerFrom
+ pusher
+)
+
+type delegator interface {
+ http.ResponseWriter
+
+ Status() int
+ Written() int64
+}
+
+type responseWriterDelegator struct {
+ http.ResponseWriter
+
+ status int
+ written int64
+ wroteHeader bool
+ observeWriteHeader func(int)
+}
+
+func (r *responseWriterDelegator) Status() int {
+ return r.status
+}
+
+func (r *responseWriterDelegator) Written() int64 {
+ return r.written
+}
+
+func (r *responseWriterDelegator) WriteHeader(code int) {
+ r.status = code
+ r.wroteHeader = true
+ r.ResponseWriter.WriteHeader(code)
+ if r.observeWriteHeader != nil {
+ r.observeWriteHeader(code)
+ }
+}
+
+func (r *responseWriterDelegator) Write(b []byte) (int, error) {
+ if !r.wroteHeader {
+ r.WriteHeader(http.StatusOK)
+ }
+ n, err := r.ResponseWriter.Write(b)
+ r.written += int64(n)
+ return n, err
+}
+
+type closeNotifierDelegator struct{ *responseWriterDelegator }
+type flusherDelegator struct{ *responseWriterDelegator }
+type hijackerDelegator struct{ *responseWriterDelegator }
+type readerFromDelegator struct{ *responseWriterDelegator }
+type pusherDelegator struct{ *responseWriterDelegator }
+
+func (d closeNotifierDelegator) CloseNotify() <-chan bool {
+ //lint:ignore SA1019 http.CloseNotifier is deprecated but we don't want to
+ //remove support from client_golang yet.
+ return d.ResponseWriter.(http.CloseNotifier).CloseNotify()
+}
+func (d flusherDelegator) Flush() {
+ d.ResponseWriter.(http.Flusher).Flush()
+}
+func (d hijackerDelegator) Hijack() (net.Conn, *bufio.ReadWriter, error) {
+ return d.ResponseWriter.(http.Hijacker).Hijack()
+}
+func (d readerFromDelegator) ReadFrom(re io.Reader) (int64, error) {
+ if !d.wroteHeader {
+ d.WriteHeader(http.StatusOK)
+ }
+ n, err := d.ResponseWriter.(io.ReaderFrom).ReadFrom(re)
+ d.written += n
+ return n, err
+}
+func (d pusherDelegator) Push(target string, opts *http.PushOptions) error {
+ return d.ResponseWriter.(http.Pusher).Push(target, opts)
+}
+
+var pickDelegator = make([]func(*responseWriterDelegator) delegator, 32)
+
+func init() {
+ // TODO(beorn7): Code generation would help here.
+ pickDelegator[0] = func(d *responseWriterDelegator) delegator { // 0
+ return d
+ }
+ pickDelegator[closeNotifier] = func(d *responseWriterDelegator) delegator { // 1
+ return closeNotifierDelegator{d}
+ }
+ pickDelegator[flusher] = func(d *responseWriterDelegator) delegator { // 2
+ return flusherDelegator{d}
+ }
+ pickDelegator[flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 3
+ return struct {
+ *responseWriterDelegator
+ http.Flusher
+ http.CloseNotifier
+ }{d, flusherDelegator{d}, closeNotifierDelegator{d}}
+ }
+ pickDelegator[hijacker] = func(d *responseWriterDelegator) delegator { // 4
+ return hijackerDelegator{d}
+ }
+ pickDelegator[hijacker+closeNotifier] = func(d *responseWriterDelegator) delegator { // 5
+ return struct {
+ *responseWriterDelegator
+ http.Hijacker
+ http.CloseNotifier
+ }{d, hijackerDelegator{d}, closeNotifierDelegator{d}}
+ }
+ pickDelegator[hijacker+flusher] = func(d *responseWriterDelegator) delegator { // 6
+ return struct {
+ *responseWriterDelegator
+ http.Hijacker
+ http.Flusher
+ }{d, hijackerDelegator{d}, flusherDelegator{d}}
+ }
+ pickDelegator[hijacker+flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 7
+ return struct {
+ *responseWriterDelegator
+ http.Hijacker
+ http.Flusher
+ http.CloseNotifier
+ }{d, hijackerDelegator{d}, flusherDelegator{d}, closeNotifierDelegator{d}}
+ }
+ pickDelegator[readerFrom] = func(d *responseWriterDelegator) delegator { // 8
+ return readerFromDelegator{d}
+ }
+ pickDelegator[readerFrom+closeNotifier] = func(d *responseWriterDelegator) delegator { // 9
+ return struct {
+ *responseWriterDelegator
+ io.ReaderFrom
+ http.CloseNotifier
+ }{d, readerFromDelegator{d}, closeNotifierDelegator{d}}
+ }
+ pickDelegator[readerFrom+flusher] = func(d *responseWriterDelegator) delegator { // 10
+ return struct {
+ *responseWriterDelegator
+ io.ReaderFrom
+ http.Flusher
+ }{d, readerFromDelegator{d}, flusherDelegator{d}}
+ }
+ pickDelegator[readerFrom+flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 11
+ return struct {
+ *responseWriterDelegator
+ io.ReaderFrom
+ http.Flusher
+ http.CloseNotifier
+ }{d, readerFromDelegator{d}, flusherDelegator{d}, closeNotifierDelegator{d}}
+ }
+ pickDelegator[readerFrom+hijacker] = func(d *responseWriterDelegator) delegator { // 12
+ return struct {
+ *responseWriterDelegator
+ io.ReaderFrom
+ http.Hijacker
+ }{d, readerFromDelegator{d}, hijackerDelegator{d}}
+ }
+ pickDelegator[readerFrom+hijacker+closeNotifier] = func(d *responseWriterDelegator) delegator { // 13
+ return struct {
+ *responseWriterDelegator
+ io.ReaderFrom
+ http.Hijacker
+ http.CloseNotifier
+ }{d, readerFromDelegator{d}, hijackerDelegator{d}, closeNotifierDelegator{d}}
+ }
+ pickDelegator[readerFrom+hijacker+flusher] = func(d *responseWriterDelegator) delegator { // 14
+ return struct {
+ *responseWriterDelegator
+ io.ReaderFrom
+ http.Hijacker
+ http.Flusher
+ }{d, readerFromDelegator{d}, hijackerDelegator{d}, flusherDelegator{d}}
+ }
+ pickDelegator[readerFrom+hijacker+flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 15
+ return struct {
+ *responseWriterDelegator
+ io.ReaderFrom
+ http.Hijacker
+ http.Flusher
+ http.CloseNotifier
+ }{d, readerFromDelegator{d}, hijackerDelegator{d}, flusherDelegator{d}, closeNotifierDelegator{d}}
+ }
+ pickDelegator[pusher] = func(d *responseWriterDelegator) delegator { // 16
+ return pusherDelegator{d}
+ }
+ pickDelegator[pusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 17
+ return struct {
+ *responseWriterDelegator
+ http.Pusher
+ http.CloseNotifier
+ }{d, pusherDelegator{d}, closeNotifierDelegator{d}}
+ }
+ pickDelegator[pusher+flusher] = func(d *responseWriterDelegator) delegator { // 18
+ return struct {
+ *responseWriterDelegator
+ http.Pusher
+ http.Flusher
+ }{d, pusherDelegator{d}, flusherDelegator{d}}
+ }
+ pickDelegator[pusher+flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 19
+ return struct {
+ *responseWriterDelegator
+ http.Pusher
+ http.Flusher
+ http.CloseNotifier
+ }{d, pusherDelegator{d}, flusherDelegator{d}, closeNotifierDelegator{d}}
+ }
+ pickDelegator[pusher+hijacker] = func(d *responseWriterDelegator) delegator { // 20
+ return struct {
+ *responseWriterDelegator
+ http.Pusher
+ http.Hijacker
+ }{d, pusherDelegator{d}, hijackerDelegator{d}}
+ }
+ pickDelegator[pusher+hijacker+closeNotifier] = func(d *responseWriterDelegator) delegator { // 21
+ return struct {
+ *responseWriterDelegator
+ http.Pusher
+ http.Hijacker
+ http.CloseNotifier
+ }{d, pusherDelegator{d}, hijackerDelegator{d}, closeNotifierDelegator{d}}
+ }
+ pickDelegator[pusher+hijacker+flusher] = func(d *responseWriterDelegator) delegator { // 22
+ return struct {
+ *responseWriterDelegator
+ http.Pusher
+ http.Hijacker
+ http.Flusher
+ }{d, pusherDelegator{d}, hijackerDelegator{d}, flusherDelegator{d}}
+ }
+ pickDelegator[pusher+hijacker+flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { //23
+ return struct {
+ *responseWriterDelegator
+ http.Pusher
+ http.Hijacker
+ http.Flusher
+ http.CloseNotifier
+ }{d, pusherDelegator{d}, hijackerDelegator{d}, flusherDelegator{d}, closeNotifierDelegator{d}}
+ }
+ pickDelegator[pusher+readerFrom] = func(d *responseWriterDelegator) delegator { // 24
+ return struct {
+ *responseWriterDelegator
+ http.Pusher
+ io.ReaderFrom
+ }{d, pusherDelegator{d}, readerFromDelegator{d}}
+ }
+ pickDelegator[pusher+readerFrom+closeNotifier] = func(d *responseWriterDelegator) delegator { // 25
+ return struct {
+ *responseWriterDelegator
+ http.Pusher
+ io.ReaderFrom
+ http.CloseNotifier
+ }{d, pusherDelegator{d}, readerFromDelegator{d}, closeNotifierDelegator{d}}
+ }
+ pickDelegator[pusher+readerFrom+flusher] = func(d *responseWriterDelegator) delegator { // 26
+ return struct {
+ *responseWriterDelegator
+ http.Pusher
+ io.ReaderFrom
+ http.Flusher
+ }{d, pusherDelegator{d}, readerFromDelegator{d}, flusherDelegator{d}}
+ }
+ pickDelegator[pusher+readerFrom+flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 27
+ return struct {
+ *responseWriterDelegator
+ http.Pusher
+ io.ReaderFrom
+ http.Flusher
+ http.CloseNotifier
+ }{d, pusherDelegator{d}, readerFromDelegator{d}, flusherDelegator{d}, closeNotifierDelegator{d}}
+ }
+ pickDelegator[pusher+readerFrom+hijacker] = func(d *responseWriterDelegator) delegator { // 28
+ return struct {
+ *responseWriterDelegator
+ http.Pusher
+ io.ReaderFrom
+ http.Hijacker
+ }{d, pusherDelegator{d}, readerFromDelegator{d}, hijackerDelegator{d}}
+ }
+ pickDelegator[pusher+readerFrom+hijacker+closeNotifier] = func(d *responseWriterDelegator) delegator { // 29
+ return struct {
+ *responseWriterDelegator
+ http.Pusher
+ io.ReaderFrom
+ http.Hijacker
+ http.CloseNotifier
+ }{d, pusherDelegator{d}, readerFromDelegator{d}, hijackerDelegator{d}, closeNotifierDelegator{d}}
+ }
+ pickDelegator[pusher+readerFrom+hijacker+flusher] = func(d *responseWriterDelegator) delegator { // 30
+ return struct {
+ *responseWriterDelegator
+ http.Pusher
+ io.ReaderFrom
+ http.Hijacker
+ http.Flusher
+ }{d, pusherDelegator{d}, readerFromDelegator{d}, hijackerDelegator{d}, flusherDelegator{d}}
+ }
+ pickDelegator[pusher+readerFrom+hijacker+flusher+closeNotifier] = func(d *responseWriterDelegator) delegator { // 31
+ return struct {
+ *responseWriterDelegator
+ http.Pusher
+ io.ReaderFrom
+ http.Hijacker
+ http.Flusher
+ http.CloseNotifier
+ }{d, pusherDelegator{d}, readerFromDelegator{d}, hijackerDelegator{d}, flusherDelegator{d}, closeNotifierDelegator{d}}
+ }
+}
+
+func newDelegator(w http.ResponseWriter, observeWriteHeaderFunc func(int)) delegator {
+ d := &responseWriterDelegator{
+ ResponseWriter: w,
+ observeWriteHeader: observeWriteHeaderFunc,
+ }
+
+ id := 0
+ //lint:ignore SA1019 http.CloseNotifier is deprecated but we don't want to
+ //remove support from client_golang yet.
+ if _, ok := w.(http.CloseNotifier); ok {
+ id += closeNotifier
+ }
+ if _, ok := w.(http.Flusher); ok {
+ id += flusher
+ }
+ if _, ok := w.(http.Hijacker); ok {
+ id += hijacker
+ }
+ if _, ok := w.(io.ReaderFrom); ok {
+ id += readerFrom
+ }
+ if _, ok := w.(http.Pusher); ok {
+ id += pusher
+ }
+
+ return pickDelegator[id](d)
+}