testutils

package
v1.0.5 Latest Latest
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 Go to latest Published: Apr 4, 2016 License: MIT Imports: 19 Imported by: 0

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Index

Constants

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const (
	DefaultServerName = "testService"
	DefaultClientName = "testService-client"
)

Default service names for the test channels.

Variables

This section is empty.

Functions

func CallEcho 

func CallEcho(src *tchannel.Channel, targetHostPort, targetService string, args *raw.Args) error

CallEcho calls the "echo" endpoint from the given src to target.

func Decrementor 

func Decrementor(n int) func() bool

Decrementor returns a function that can be called from multiple goroutines and ensures it will only return true n times.

func DurationArray 

func DurationArray(dd ...time.Duration) []time.Duration

DurationArray returns an array with the given durations.

func FrameRelay 

func FrameRelay(t *testing.T, destination string, relayFunc func(outgoing bool, f *tchannel.Frame) *tchannel.Frame) (listenHostPort string, cancel func())

FrameRelay sets up a relay that can modify frames using relayFunc.

func GetAcceptCloseHostPort added in v1.0.5 

func GetAcceptCloseHostPort(t testing.TB) (string, func())

GetAcceptCloseHostPort returns a host:port that will accept a connection then immediately close it. The returned function can be used to stop the listener.

func GetClosedHostPort 

func GetClosedHostPort(t testing.TB) string

GetClosedHostPort will return a host:port that will refuse connections.

func NewClient 

func NewClient(t testing.TB, opts *ChannelOpts) *tchannel.Channel

NewClient returns a new TChannel that is not listening.

func NewClientChannel 

func NewClientChannel(opts *ChannelOpts) (*tchannel.Channel, error)

NewClientChannel creates a TChannel that is not listening.

func NewIncomingCall 

func NewIncomingCall(callerName string) tchannel.IncomingCall

NewIncomingCall creates an incoming call for tests.

func NewServer 

func NewServer(t testing.TB, opts *ChannelOpts) *tchannel.Channel

NewServer returns a new TChannel server that listens on :0.

func NewServerChannel 

func NewServerChannel(opts *ChannelOpts) (*tchannel.Channel, error)

NewServerChannel creates a TChannel that is listening and returns the channel.

func NowStub 

func NowStub(initial time.Time) (stub func() time.Time, increment func(time.Duration))

NowStub returns a stub time.Now function that allows the return values to to be controller by the caller. It returns two functions: stub: The stub time.Now function. increment: Used to control the increment amount between calls.

func Ping 

func Ping(src, target *tchannel.Channel) error

Ping sends a ping from src to target.

func RandBytes 

func RandBytes(n int) []byte

RandBytes returns n random byte slice that points to a shared random byte array. Since the underlying random array is shared, the returned byte slice must NOT be modified.

func RandString 

func RandString(n int) string

RandString returns a random alphanumeric string for testing.

func RegisterEcho 

func RegisterEcho(src *tchannel.Channel, f func())

RegisterEcho registers an echo endpoint on the given channel. The optional provided function is run before the handler returns.

func RegisterFunc 

func RegisterFunc(ch *tchannel.Channel, name string,
	f func(ctx context.Context, args *raw.Args) (*raw.Res, error))

RegisterFunc registers a function as a handler for the given method name.

func ResetSleepStub 

func ResetSleepStub(funcVar *func(time.Duration))

ResetSleepStub resets a Sleep stub.

func RunN 

func RunN(n int, f func(i int))

RunN runs the given f n times (and passes the run's index) and waits till they complete. It starts n-1 goroutines, and runs one instance in the current goroutine.

func SetTimeout 

func SetTimeout(t *testing.T, timeout time.Duration) func()

SetTimeout is used to fail tests after a timeout. It returns a function that should be run once the test is complete. The standard way is to use defer, e.g. defer SetTimeout(t, time.Second)()

func SleepStub 

func SleepStub(funcVar *func(time.Duration)) (
	argCh <-chan time.Duration, unblockCh chan<- struct{}, closeFn func())

SleepStub stubs a function variable that points to time.Sleep. It returns two channels to control the sleep stub, and a function to close the channels. Once the stub is closed, any further sleeps will cause panics. The two channels returned are: <-chan time.Duration which will contain arguments that the stub was called with. chan<- struct{} that should be written to when you want the Sleep to return.

func StrArray 

func StrArray(ss ...string) []string

StrArray will return an array with the given strings.

func StrMap 

func StrMap(ss ...string) map[string]struct{}

StrMap returns a map where the keys are the given strings.

func Timeout 

func Timeout(timeout time.Duration) time.Duration

Timeout returns the timeout multiplied by any set multiplier.

func WaitFor 

func WaitFor(timeout time.Duration, f func() bool) bool

WaitFor will retry f till it returns true for a maximum of timeout. It returns true if f returned true, false if timeout was hit.

func WaitWG 

func WaitWG(wg *sync.WaitGroup, timeout time.Duration) bool

WaitWG waits for the given WaitGroup to be complete with a timeout and returns whether the WaitGroup completed within the timeout.

func WithServer 

func WithServer(t testing.TB, opts *ChannelOpts, f func(ch *tchannel.Channel, hostPort string))

WithServer sets up a TChannel that is listening and runs the given function with the channel.

func WithTestServer added in v1.0.5 

func WithTestServer(t testing.TB, chanOpts *ChannelOpts, f func(*TestServer))

WithTestServer creates a new TestServer, runs the passed function, and then verifies that no resources were leaked.

TODO: run function twice; once with a relay, once without.

Types

type ChannelOpts 

type ChannelOpts struct {
	tchannel.ChannelOptions

	// ServiceName defaults to DefaultServerName or DefaultClientName.
	ServiceName string

	// LogVerification contains options for controlling the log verification.
	LogVerification LogVerification
	// contains filtered or unexported fields
}

ChannelOpts contains options to create a test channel using WithServer

func DefaultOpts 

func DefaultOpts(opts *ChannelOpts) *ChannelOpts

DefaultOpts will return opts if opts is non-nil, NewOpts otherwise.

func NewOpts 

func NewOpts() *ChannelOpts

NewOpts returns a new ChannelOpts that can be used in a chained fashion.

func (*ChannelOpts) AddLogFilter 

func (o *ChannelOpts) AddLogFilter(filter string, maxCount uint, fields ...string) *ChannelOpts

AddLogFilter sets an allowed filter for warning/error logs and sets the maximum number of times that log can occur.

func (*ChannelOpts) DisableLogVerification 

func (o *ChannelOpts) DisableLogVerification() *ChannelOpts

DisableLogVerification disables log verification for this channel.

func (*ChannelOpts) SetFramePool 

func (o *ChannelOpts) SetFramePool(framePool tchannel.FramePool) *ChannelOpts

SetFramePool sets FramePool in DefaultConnectionOptions.

func (*ChannelOpts) SetProcessName 

func (o *ChannelOpts) SetProcessName(processName string) *ChannelOpts

SetProcessName sets the ProcessName in ChannelOptions.

func (*ChannelOpts) SetServiceName 

func (o *ChannelOpts) SetServiceName(svcName string) *ChannelOpts

SetServiceName sets ServiceName.

func (*ChannelOpts) SetStatsReporter 

func (o *ChannelOpts) SetStatsReporter(statsReporter tchannel.StatsReporter) *ChannelOpts

SetStatsReporter sets StatsReporter in ChannelOptions.

func (*ChannelOpts) SetTimeNow 

func (o *ChannelOpts) SetTimeNow(timeNow func() time.Time) *ChannelOpts

SetTimeNow sets TimeNow in ChannelOptions.

func (*ChannelOpts) SetTraceReporter 

func (o *ChannelOpts) SetTraceReporter(traceReporter tchannel.TraceReporter) *ChannelOpts

SetTraceReporter sets TraceReporter in ChannelOptions.

func (*ChannelOpts) SetTraceReporterFactory 

func (o *ChannelOpts) SetTraceReporterFactory(factory tchannel.TraceReporterFactory) *ChannelOpts

SetTraceReporterFactory sets TraceReporterFactory in ChannelOptions.

func (*ChannelOpts) SetTraceSampleRate 

func (o *ChannelOpts) SetTraceSampleRate(sampleRate float64) *ChannelOpts

SetTraceSampleRate sets the TraceSampleRate in ChannelOptions.

type FakeIncomingCall 

type FakeIncomingCall struct {
	// CallerNameF is the calling service's name.
	CallerNameF string

	// ShardKeyF is the intended destination for this call.
	ShardKeyF string

	// RemotePeerF is the calling service's peer info.
	RemotePeerF tchannel.PeerInfo

	// RoutingDelegateF is the routing delegate.
	RoutingDelegateF string
}

FakeIncomingCall implements IncomingCall interface. Note: the F suffix for the fields is to clash with the method name.

func (*FakeIncomingCall) CallerName 

func (f *FakeIncomingCall) CallerName() string

CallerName returns the caller name as specified in the fake call.

func (*FakeIncomingCall) RemotePeer 

func (f *FakeIncomingCall) RemotePeer() tchannel.PeerInfo

RemotePeer returns the caller's peer info.

func (*FakeIncomingCall) RoutingDelegate added in v1.0.2 

func (f *FakeIncomingCall) RoutingDelegate() string

RoutingDelegate returns the routing delegate as specified in the fake call.

func (*FakeIncomingCall) ShardKey 

func (f *FakeIncomingCall) ShardKey() string

ShardKey returns the shard key as specified in the fake call.

type LogFilter 

type LogFilter struct {
	// Filter specifies the substring match to search
	// for in the log message to skip raising an error.
	Filter string

	// Count is the maximum number of allowed warn+ logs matching
	// Filter before errors are raised.
	Count uint

	// FieldFilters specifies expected substring matches for fields.
	FieldFilters map[string]string
}

LogFilter is a single substring match that can be ignored.

func (LogFilter) Matches added in v1.0.3 

func (f LogFilter) Matches(msg string, fields tchannel.LogFields) bool

Matches returns true if the message and fields match the filter.

type LogVerification 

type LogVerification struct {
	Disabled bool

	Filters []LogFilter
}

LogVerification contains options to control the log verification.

func (*LogVerification) WrapLogger 

func (v *LogVerification) WrapLogger(t testing.TB, l tchannel.Logger) tchannel.Logger

WrapLogger wraps the given logger with extra verification.

type TestServer added in v1.0.5 

type TestServer struct {
	testing.TB
	// contains filtered or unexported fields
}

A TestServer encapsulates a TChannel server, a client factory, and functions to ensure that we're not leaking resources.

TODO: Include an optional relay.

func NewTestServer added in v1.0.5 

func NewTestServer(t testing.TB, opts *ChannelOpts) *TestServer

NewTestServer constructs a TestServer.

func (*TestServer) CloseAndVerify added in v1.0.5 

func (ts *TestServer) CloseAndVerify()

CloseAndVerify closes all channels verifying each channel as it is closed. It then verifies that no goroutines were leaked.

func (*TestServer) HostPort added in v1.0.5 

func (ts *TestServer) HostPort() string

HostPort returns the host:port for clients to connect to. Note that this may not be the same as the host:port of the server channel.

func (*TestServer) NewClient added in v1.0.5 

func (ts *TestServer) NewClient(opts *ChannelOpts) *tchannel.Channel

NewClient returns a client that with log verification. TODO: Verify message exchanges and leaks for client channels as well.

func (*TestServer) NewServer added in v1.0.5 

func (ts *TestServer) NewServer(opts *ChannelOpts) *tchannel.Channel

NewServer returns a server with log and channel state verification.

func (*TestServer) Register added in v1.0.5 

func (ts *TestServer) Register(h tchannel.Handler, methodName string)

Register registers a handler on the server channel.

func (*TestServer) Server added in v1.0.5 

func (ts *TestServer) Server() *tchannel.Channel

Server returns the underlying TChannel for the server (i.e., the channel on which we're registering handlers).

To support test cases with relays interposed between clients and servers, callers should use the Client(), HostPort(), ServiceName(), and Register() methods instead of accessing the server channel explicitly.

func (*TestServer) ServiceName added in v1.0.5 

func (ts *TestServer) ServiceName() string

ServiceName returns the service name of the server channel.

func (*TestServer) SetVerifyOpts added in v1.0.5 

func (ts *TestServer) SetVerifyOpts(opts *goroutines.VerifyOpts)

SetVerifyOpts specifies the options we'll use during teardown to verify that no goroutines were leaked.

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