mirror of https://github.com/dapr/go-sdk.git
121 lines
2.7 KiB
Go
121 lines
2.7 KiB
Go
/*
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Copyright 2023 The Dapr 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 client
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import (
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"errors"
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"io"
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"sync"
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"testing"
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"time"
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)
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func TestIsCloudEvent(t *testing.T) {
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testcases := []struct {
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name string
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event []byte
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expected bool
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}{
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{
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name: "empty event",
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event: []byte{},
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expected: false,
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},
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{
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name: "event in invalid format",
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event: []byte(`foo`),
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expected: false,
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},
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{
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name: "event in JSON format without cloudevent fields",
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event: []byte(`{"foo":"bar"}`),
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expected: false,
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},
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{
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name: "event with id, source, specversion and type",
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event: []byte(`{"id":"123","source":"source","specversion":"1.0","type":"type"}`),
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expected: true,
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},
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{
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name: "event with missing id",
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event: []byte(`{"source":"source","specversion":"1.0","type":"type"}`),
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expected: false,
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},
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{
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name: "event with extra fields",
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event: []byte(`{"id":"123","source":"source","specversion":"1.0","type":"type","foo":"bar"}`),
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expected: true,
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},
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}
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for _, tc := range testcases {
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t.Run(tc.name, func(t *testing.T) {
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actual := isCloudEvent(tc.event)
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if actual != tc.expected {
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t.Errorf("expected %v, got %v", tc.expected, actual)
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}
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})
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}
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}
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// Implements an io.Reader that simulates failures (after optionally reading from a stream in full)
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type failingReader struct {
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// Data to return before returning an error
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data io.Reader
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l sync.Mutex
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}
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func (f *failingReader) Read(p []byte) (n int, err error) {
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f.l.Lock()
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defer f.l.Unlock()
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if f.data != nil {
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n, err := f.data.Read(p)
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if err == nil {
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return n, nil
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} else if errors.Is(err, io.EOF) {
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// Do not return io.EOF as error
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// Instead, just delete the stream
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// On the next call, we will return an error
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f.data = nil
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return n, nil
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} else {
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// Should not happen
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panic(err)
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}
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}
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return 0, errors.New("simulated")
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}
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// Implements an io.Reader that returns data slowly
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type slowReader struct {
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// Data to return
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data io.Reader
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// Interval between every byte sent
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delay time.Duration
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l sync.Mutex
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}
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func (s *slowReader) Read(p []byte) (n int, err error) {
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s.l.Lock()
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defer s.l.Unlock()
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// Sleep
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time.Sleep(s.delay)
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// Read one byte at a time
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return s.data.Read(p[0:1])
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}
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