149 lines
3.6 KiB
Go
149 lines
3.6 KiB
Go
package stream
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import (
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"testing"
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"github.com/stretchr/testify/require"
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)
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func TestEvent_IsEndOfSnapshot(t *testing.T) {
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e := Event{Payload: endOfSnapshot{}}
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require.True(t, e.IsEndOfSnapshot())
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t.Run("not EndOfSnapshot", func(t *testing.T) {
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e := Event{Payload: newSnapshotToFollow{}}
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require.False(t, e.IsEndOfSnapshot())
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})
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}
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func newSimpleEvent(key string, index uint64) Event {
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return Event{Index: index, Payload: simplePayload{key: key}}
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}
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func TestPayloadEvents_FilterByKey(t *testing.T) {
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type testCase struct {
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name string
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req SubscribeRequest
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events []Event
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expectEvent bool
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expected *PayloadEvents
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expectedCap int
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}
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fn := func(t *testing.T, tc testCase) {
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events := make([]Event, 0, 5)
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events = append(events, tc.events...)
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pe := &PayloadEvents{Items: events}
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ok := pe.FilterByKey(tc.req.Key, tc.req.Namespace)
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require.Equal(t, tc.expectEvent, ok)
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if !tc.expectEvent {
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return
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}
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require.Equal(t, tc.expected, pe)
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// test if there was a new array allocated or not
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require.Equal(t, tc.expectedCap, cap(pe.Items))
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}
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var testCases = []testCase{
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{
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name: "all events match, no key or namespace",
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req: SubscribeRequest{Topic: testTopic},
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events: []Event{
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newSimpleEvent("One", 102),
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newSimpleEvent("Two", 102)},
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expectEvent: true,
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expected: NewPayloadEvents(
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newSimpleEvent("One", 102),
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newSimpleEvent("Two", 102)),
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expectedCap: 5,
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},
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{
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name: "all events match, no namespace",
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req: SubscribeRequest{Topic: testTopic, Key: "Same"},
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events: []Event{
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newSimpleEvent("Same", 103),
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newSimpleEvent("Same", 103)},
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expectEvent: true,
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expected: NewPayloadEvents(
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newSimpleEvent("Same", 103),
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newSimpleEvent("Same", 103)),
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expectedCap: 5,
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},
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{
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name: "all events match, no key",
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req: SubscribeRequest{Topic: testTopic, Namespace: "apps"},
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events: []Event{
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newNSEvent("Something", "apps"),
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newNSEvent("Other", "apps")},
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expectEvent: true,
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expected: NewPayloadEvents(
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newNSEvent("Something", "apps"),
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newNSEvent("Other", "apps")),
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expectedCap: 5,
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},
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{
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name: "some evens match, no namespace",
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req: SubscribeRequest{Topic: testTopic, Key: "Same"},
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events: []Event{
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newSimpleEvent("Same", 104),
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newSimpleEvent("Other", 104),
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newSimpleEvent("Same", 104)},
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expectEvent: true,
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expected: NewPayloadEvents(
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newSimpleEvent("Same", 104),
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newSimpleEvent("Same", 104)),
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expectedCap: 2,
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},
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{
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name: "some events match, no key",
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req: SubscribeRequest{Topic: testTopic, Namespace: "apps"},
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events: []Event{
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newNSEvent("app1", "apps"),
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newNSEvent("db1", "dbs"),
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newNSEvent("app2", "apps")},
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expectEvent: true,
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expected: NewPayloadEvents(
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newNSEvent("app1", "apps"),
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newNSEvent("app2", "apps")),
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expectedCap: 2,
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},
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{
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name: "no events match key",
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req: SubscribeRequest{Topic: testTopic, Key: "Other"},
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events: []Event{
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newSimpleEvent("Same", 0),
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newSimpleEvent("Same", 0)},
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},
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{
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name: "no events match namespace",
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req: SubscribeRequest{Topic: testTopic, Namespace: "apps"},
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events: []Event{
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newNSEvent("app1", "group1"),
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newNSEvent("app2", "group2")},
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expectEvent: false,
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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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fn(t, tc)
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})
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}
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}
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func newNSEvent(key, namespace string) Event {
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return Event{Index: 22, Payload: nsPayload{key: key, namespace: namespace}}
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}
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type nsPayload struct {
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key string
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namespace string
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value string
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}
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func (p nsPayload) FilterByKey(key, namespace string) bool {
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return (key == "" || key == p.key) && (namespace == "" || namespace == p.namespace)
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}
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