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|
package tracker
import (
"context"
"errors"
"testing"
"time"
"github.com/golang/mock/gomock"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"gitlab.com/gitlab-org/cluster-integration/gitlab-agent/v16/internal/tool/redistool"
"gitlab.com/gitlab-org/cluster-integration/gitlab-agent/v16/internal/tool/testing/matcher"
"gitlab.com/gitlab-org/cluster-integration/gitlab-agent/v16/internal/tool/testing/mock_modshared"
"gitlab.com/gitlab-org/cluster-integration/gitlab-agent/v16/internal/tool/testing/mock_redis"
"gitlab.com/gitlab-org/cluster-integration/gitlab-agent/v16/internal/tool/testing/testhelpers"
"go.uber.org/zap/zaptest"
)
var (
_ Registerer = &RedisTracker{}
_ Tracker = &RedisTracker{}
_ Querier = &RedisTracker{}
)
const (
selfUrl = "grpc://1.1.1.1:10"
)
func TestRegisterConnection(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
r, hash, _ := setupTracker(t)
gomock.InOrder(
hash.EXPECT().
Set(testhelpers.AgentId, selfUrl, gomock.Any()).
Return(func(ctx context.Context) error {
cancel()
return nil
}),
hash.EXPECT().
Clear(gomock.Any()),
)
go func() {
assert.NoError(t, r.RegisterTunnel(context.Background(), testhelpers.AgentId))
}()
require.NoError(t, r.Run(ctx))
}
func TestRegisterConnection_TwoConnections(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
r, hash, _ := setupTracker(t)
gomock.InOrder(
hash.EXPECT().
Set(testhelpers.AgentId, selfUrl, gomock.Any()).
Return(func(ctx context.Context) error {
cancel()
return nil
}),
hash.EXPECT().
Clear(gomock.Any()),
)
go func() {
// Two registrations result in a single Set() call
assert.NoError(t, r.RegisterTunnel(context.Background(), testhelpers.AgentId)) // first
assert.NoError(t, r.RegisterTunnel(context.Background(), testhelpers.AgentId)) // second
}()
require.NoError(t, r.Run(ctx))
}
func TestUnregisterConnection(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
r, hash, _ := setupTracker(t)
gomock.InOrder(
hash.EXPECT().
Set(testhelpers.AgentId, selfUrl, gomock.Any()).
Return(nopIOFunc),
hash.EXPECT().
Unset(testhelpers.AgentId, selfUrl).
Return(func(ctx context.Context) error {
cancel()
return nil
}),
hash.EXPECT().
Clear(gomock.Any()),
)
go func() {
assert.NoError(t, r.RegisterTunnel(context.Background(), testhelpers.AgentId))
assert.NoError(t, r.UnregisterTunnel(context.Background(), testhelpers.AgentId))
}()
require.NoError(t, r.Run(ctx))
}
func TestUnregisterConnection_TwoConnections(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
r, hash, _ := setupTracker(t)
gomock.InOrder(
hash.EXPECT().
Set(testhelpers.AgentId, selfUrl, gomock.Any()).
Return(nopIOFunc),
hash.EXPECT().
Unset(testhelpers.AgentId, selfUrl).
Return(func(ctx context.Context) error {
cancel()
return nil
}),
hash.EXPECT().
Clear(gomock.Any()),
)
go func() {
assert.NoError(t, r.RegisterTunnel(context.Background(), testhelpers.AgentId))
assert.NoError(t, r.RegisterTunnel(context.Background(), testhelpers.AgentId))
assert.NoError(t, r.UnregisterTunnel(context.Background(), testhelpers.AgentId))
assert.NoError(t, r.UnregisterTunnel(context.Background(), testhelpers.AgentId))
}()
require.NoError(t, r.Run(ctx))
}
// This test ensures Unset() is only called when there are no registered connections i.e. it is NOT called
// for two RegisterTunnel() and a single UnregisterTunnel().
func TestUnregisterConnection_TwoConnections_OneSet(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
r, hash, _ := setupTracker(t)
gomock.InOrder(
hash.EXPECT().
Set(testhelpers.AgentId, selfUrl, gomock.Any()).
Return(nopIOFunc),
hash.EXPECT().
Clear(gomock.Any()),
)
go func() {
assert.NoError(t, r.RegisterTunnel(context.Background(), testhelpers.AgentId))
assert.NoError(t, r.RegisterTunnel(context.Background(), testhelpers.AgentId))
assert.NoError(t, r.UnregisterTunnel(context.Background(), testhelpers.AgentId))
cancel()
}()
require.NoError(t, r.Run(ctx))
}
func TestGC(t *testing.T) {
r, hash, _ := setupTracker(t)
wasCalled := false
hash.EXPECT().
GC().
Return(func(_ context.Context) (int, error) {
wasCalled = true
return 3, nil
})
deleted, err := r.runGC(context.Background())
require.NoError(t, err)
assert.EqualValues(t, 3, deleted)
assert.True(t, wasCalled)
}
func TestRefreshRegistrations(t *testing.T) {
r, hash, _ := setupTracker(t)
hash.EXPECT().
Refresh(gomock.Any()).
Return(nopIOFunc)
assert.NoError(t, r.refreshRegistrations(context.Background(), time.Now()))
}
func TestKasUrlsByAgentId_HappyPath(t *testing.T) {
r, hash, _ := setupTracker(t)
hash.EXPECT().
Scan(gomock.Any(), testhelpers.AgentId, gomock.Any()).
Do(func(ctx context.Context, key interface{}, cb redistool.ScanCallback) (int, error) {
var done bool
done, err := cb(selfUrl, nil, nil)
if err != nil || done {
return 0, err
}
return 0, nil
})
var cbCalled int
err := r.KasUrlsByAgentId(context.Background(), testhelpers.AgentId, func(kasUrl string) (bool, error) {
cbCalled++
assert.Equal(t, selfUrl, kasUrl)
return false, nil
})
require.NoError(t, err)
assert.EqualValues(t, 1, cbCalled)
}
func TestKasUrlsByAgentId_ScanError(t *testing.T) {
r, hash, api := setupTracker(t)
gomock.InOrder(
hash.EXPECT().
Scan(gomock.Any(), testhelpers.AgentId, gomock.Any()).
Do(func(ctx context.Context, key interface{}, cb redistool.ScanCallback) (int, error) {
done, err := cb("", nil, errors.New("intended error"))
require.NoError(t, err)
assert.False(t, done)
return 0, nil
}),
api.EXPECT().
HandleProcessingError(gomock.Any(), gomock.Any(), testhelpers.AgentId, "Redis hash scan", matcher.ErrorEq("intended error")),
)
err := r.KasUrlsByAgentId(context.Background(), testhelpers.AgentId, func(kasUrl string) (bool, error) {
require.FailNow(t, "unexpected call")
return false, nil
})
require.NoError(t, err)
}
func setupTracker(t *testing.T) (*RedisTracker, *mock_redis.MockExpiringHashInterface[int64, string], *mock_modshared.MockApi) {
ctrl := gomock.NewController(t)
api := mock_modshared.NewMockApi(ctrl)
hash := mock_redis.NewMockExpiringHashInterface[int64, string](ctrl)
return &RedisTracker{
log: zaptest.NewLogger(t),
api: api,
refreshPeriod: time.Minute,
gcPeriod: time.Minute,
ownPrivateApiUrl: selfUrl,
tunnelsByAgentIdCount: make(map[int64]uint16),
tunnelsByAgentId: hash,
}, hash, api
}
func nopIOFunc(ctx context.Context) error {
return nil
}
|
