testing

package module
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 Go to latest Published: Feb 7, 2024 License: LGPL-3.0 Imports: 22 Imported by: 200

README

juju/testing

This package provides additional base test suites to be used with gocheck.

Documentation

Overview

Example 
package main

import (
	"fmt"
	"log"

	"github.com/juju/loggo/v2"

	"github.com/juju/testing"
)

type ExampleInterfaceToMock interface {
	Add(a, b int) int
	Div(a, b int) (int, error)
}

type fakeType struct {
	ExampleInterfaceToMock
	*testing.CallMocker
}

func (f *fakeType) Add(a, b int) int {
	results := f.MethodCall(f, "Add", a, b)
	return results[0].(int)
}

func (f *fakeType) Div(a, b int) (int, error) {
	results := f.MethodCall(f, "Div", a, b)
	return results[0].(int), testing.TypeAssertError(results[1])
}

type ExampleTypeWhichUsesInterface struct {
	calculator ExampleInterfaceToMock
}

func (e *ExampleTypeWhichUsesInterface) Add(nums ...int) int {
	var tally int
	for n := range nums {
		tally = e.calculator.Add(tally, n)
	}
	return tally
}

func (e *ExampleTypeWhichUsesInterface) Div(nums ...int) (int, error) {
	var tally int
	var err error
	for n := range nums {
		tally, err = e.calculator.Div(tally, n)
		if err != nil {
			break
		}
	}
	return tally, err
}

func main() {
	var logger loggo.Logger

	// Set a fake type which mocks out calls.
	mock := &fakeType{CallMocker: testing.NewCallMocker(logger)}
	mock.Call("Add", 1, 1).Returns(2)
	mock.Call("Div", 1, 1).Returns(1, nil)
	mock.Call("Div", 1, 0).Returns(0, fmt.Errorf("cannot divide by zero"))

	// Pass in the mock which satisifes a dependency of
	// ExampleTypeWhichUsesInterface. This allows us to inject mocked
	// calls.
	example := ExampleTypeWhichUsesInterface{calculator: mock}
	if example.Add(1, 1) != 2 {
		log.Fatal("unexpected result")
	}

	if result, err := example.Div(1, 1); err != nil {
		log.Fatalf("unexpected error: %v", err)
	} else if result != 1 {
		log.Fatal("unexpected result")
	}

	if _, err := example.Div(1, 0); err == nil {
		log.Fatal("did not receive expected divide by zero error")
	}
}

Output:

Index

Examples

Constants

View Source 
const (
	// EchoQuotedArgs is a simple bash script that prints out the
	// basename of the command followed by the args as quoted strings.
	// If a ; separated list of exit codes is provided in $name.exitcodes
	// then it will return them in turn over multiple calls. If
	// $name.exitcodes does not exist, or the list runs out, return 0.
	EchoQuotedArgsUnix = `#!/bin/bash --norc
name=` + "`basename $0`" + `
argfile="$0.out"
exitcodesfile="$0.exitcodes"
printf "%s" $name | tee -a $argfile
for arg in "$@"; do
  printf " '%s'" "$arg" | tee -a $argfile
done
printf "\n" | tee -a $argfile
if [ -f $exitcodesfile ]
then
	exitcodes=$(cat $exitcodesfile)
	arr=(${exitcodes/;/ })
	echo ${arr[1]} | tee $exitcodesfile
	exit ${arr[0]}
fi
`
	EchoQuotedArgsWindows = `` /* 560-byte string literal not displayed */

)
View Source 
const GOVERSION = 1.5
View Source 
const LongWait = 10 * time.Second

LongWait is used when something should have already happened, or happens quickly, but we want to make sure we just haven't missed it. As in, the test suite should proceed without sleeping at all, but just in case. It is long so that we don't have spurious failures without actually slowing down the test suite

View Source 
const RaceEnabled = false
View Source 
const ShortWait = 50 * time.Millisecond

ShortWait is a reasonable amount of time to block waiting for something that shouldn't actually happen. (as in, the test suite will *actually* wait this long before continuing)

Variables

View Source 
var HookChannelSize = 10
View Source 
var Server = NewHTTPServer(5 * time.Second)

Functions

func AssertEchoArgs 

func AssertEchoArgs(c *gc.C, execName string, args ...string)

AssertEchoArgs is used to check the args from an execution of a command that has been patched using PatchExecutable containing EchoQuotedArgs.

func CaptureOutput 

func CaptureOutput(c *gc.C, f func()) (stdout []byte, stderr []byte)

CaptureOutput runs the given function and captures anything written to Stderr or Stdout during f's execution.

func FindImports 

func FindImports(packageName, prefix string) ([]string, error)

FindImports returns a sorted list of packages imported by the package with the given name that have the given prefix. The resulting list removes the common prefix, leaving just the short names.

func HomePath 

func HomePath(names ...string) string

HomePath joins the specified path snippets and returns an absolute path under Juju home.

func HookCommandOutput 

func HookCommandOutput(
	outputFunc *func(cmd *exec.Cmd) ([]byte, error), output []byte, err error) (<-chan *exec.Cmd, func())

HookCommandOutput intercepts CommandOutput to a function that passes the actual command and it's output back via a channel, and returns the error passed into this function. It also returns a cleanup function so you can restore the original function

func JujuXDGDataHomePath 

func JujuXDGDataHomePath(names ...string) string

JujuXDGDataHomePath returns the test home path, it is just a convenience for tests, if extra path snippets are passed they will be joined to juju home. This tool assumes ~/.config/juju as the juju home.

func PatchExecutable 

func PatchExecutable(c *gc.C, patcher EnvironmentPatcher, execName, script string, exitCodes ...int)

PatchExecutable creates an executable called 'execName' in a new test directory and that directory is added to the path.

func PatchExecutableAsEchoArgs 

func PatchExecutableAsEchoArgs(c *gc.C, patcher EnvironmentPatcher, execName string, exitCodes ...int)

PatchExecutableAsEchoArgs creates an executable called 'execName' in a new test directory and that directory is added to the path. The content of the script is 'EchoQuotedArgs', and the args file is removed using a cleanup function.

func PatchExecutableThrowError 

func PatchExecutableThrowError(c *gc.C, patcher EnvironmentPatcher, execName string, exitCode int)

PatchExecutableThrowError is needed to test cases in which we expect exit codes from executables called from the system path

func ReadEchoArgs 

func ReadEchoArgs(c *gc.C, execName string) string

ReadEchoArgs is used to read the args from an execution of a command that has been patched using PatchExecutable containing EchoQuotedArgs.

func TypeAssertError 

func TypeAssertError(err interface{}) error

Types

type CallMocker 

type CallMocker struct {
	Stub
	// contains filtered or unexported fields
}

CallMocker is a tool which allows tests to dynamically specify results for a given set of input parameters.

func NewCallMocker 

func NewCallMocker(logger loggo.Logger) *CallMocker

NewCallMocker returns a CallMocker which will log calls and results utilizing the given logger.

func (*CallMocker) Call 

func (m *CallMocker) Call(fnName string, args ...interface{}) *callMockReturner

Call is the first half a chained-predicate which registers that calls to a function named fnName with arguments args should return some value. The returned values are handled by the returned type, callMockReturner.

func (*CallMocker) MethodCall 

func (m *CallMocker) MethodCall(receiver interface{}, fnName string, args ...interface{}) []interface{}

MethodCall logs the call to a method and any results that will be returned. It returns the results previously specified by the Call function. If no results were specified, the returned slice will be nil.

func (*CallMocker) Results 

func (m *CallMocker) Results(fnName string, args ...interface{}) []interface{}

Results returns any results previously specified by calls to the Call method. If there are no results, the returned slice will be nil.

type CleanupSuite 

type CleanupSuite struct {
	// contains filtered or unexported fields
}

CleanupSuite adds the ability to add cleanup functions that are called during either test tear down or suite tear down depending on the method called.

func (*CleanupSuite) AddCleanup 

func (s *CleanupSuite) AddCleanup(cleanup func(*gc.C))

AddCleanup pushes the cleanup function onto the stack of functions to be called during TearDownTest or TearDownSuite. TearDownTest will be used if SetUpTest has already been called, else we will use TearDownSuite

func (*CleanupSuite) HookCommandOutput 

func (s *CleanupSuite) HookCommandOutput(
	outputFunc *func(cmd *exec.Cmd) ([]byte, error),
	output []byte,
	err error,
) <-chan *exec.Cmd

HookCommandOutput calls the package function of the same name to mock out the result of a particular comand execution, and will call the restore function on test teardown.

func (*CleanupSuite) PatchEnvPathPrepend 

func (s *CleanupSuite) PatchEnvPathPrepend(dir string)

PatchEnvPathPrepend prepends the given path to the environment $PATH and restores the original path on test teardown.

func (*CleanupSuite) PatchEnvironment 

func (s *CleanupSuite) PatchEnvironment(name, value string)

PatchEnvironment sets the environment variable 'name' the the value passed in. The old value is saved and returned to the original value at test tear down time using a cleanup function.

func (*CleanupSuite) PatchValue 

func (s *CleanupSuite) PatchValue(dest, value interface{})

PatchValue sets the 'dest' variable the the value passed in. The old value is saved and returned to the original value at test tear down time using a cleanup function. The value must be assignable to the element type of the destination.

func (*CleanupSuite) SetUpSuite 

func (s *CleanupSuite) SetUpSuite(c *gc.C)

func (*CleanupSuite) SetUpTest 

func (s *CleanupSuite) SetUpTest(c *gc.C)

func (*CleanupSuite) TearDownSuite 

func (s *CleanupSuite) TearDownSuite(c *gc.C)

func (*CleanupSuite) TearDownTest 

func (s *CleanupSuite) TearDownTest(c *gc.C)

type EnvironmentPatcher 

type EnvironmentPatcher interface {
	PatchEnvironment(name, value string)
}

EnvironmentPatcher is an interface that requires just one method: PatchEnvironment.

type FakeHome 

type FakeHome struct {
	// contains filtered or unexported fields
}

FakeHome stores information about the user's home environment so it can be cast aside for tests and restored afterwards.

func MakeFakeHome 

func MakeFakeHome(c *gc.C) *FakeHome

func (*FakeHome) AddFiles 

func (h *FakeHome) AddFiles(c *gc.C, files ...TestFile)

func (*FakeHome) FileContents 

func (h *FakeHome) FileContents(c *gc.C, path string) string

FileContents returns the test file contents for the given specified path (which may be relative, so we compare with the base filename only).

func (*FakeHome) FileExists 

func (h *FakeHome) FileExists(path string) bool

FileExists returns if the given relative file path exists in the fake home.

type FakeHomeSuite 

type FakeHomeSuite struct {
	CleanupSuite
	LoggingSuite
	Home *FakeHome
}

FakeHomeSuite sets up a fake home directory before running tests.

func (*FakeHomeSuite) SetUpSuite 

func (s *FakeHomeSuite) SetUpSuite(c *gc.C)

func (*FakeHomeSuite) SetUpTest 

func (s *FakeHomeSuite) SetUpTest(c *gc.C)

func (*FakeHomeSuite) TearDownSuite 

func (s *FakeHomeSuite) TearDownSuite(c *gc.C)

func (*FakeHomeSuite) TearDownTest 

func (s *FakeHomeSuite) TearDownTest(c *gc.C)

type HTTPServer 

type HTTPServer struct {
	URL     string
	Timeout time.Duration
	// contains filtered or unexported fields
}

func NewHTTPServer 

func NewHTTPServer(timeout time.Duration) *HTTPServer

func (*HTTPServer) Flush 

func (s *HTTPServer) Flush()

Flush discards all pending requests and responses.

func (*HTTPServer) Response 

func (s *HTTPServer) Response(status int, headers map[string]string, body []byte)

Response prepares the test server to respond the following request using the provided response parameters.

func (*HTTPServer) ResponseFunc 

func (s *HTTPServer) ResponseFunc(n int, f ResponseFunc)

ResponseFunc prepares the test server to respond the following n requests using f to build each response.

func (*HTTPServer) ResponseMap 

func (s *HTTPServer) ResponseMap(n int, m ResponseMap)

ResponseMap prepares the test server to respond the following n requests using the m to obtain the responses.

func (*HTTPServer) Responses 

func (s *HTTPServer) Responses(n int, status int, headers map[string]string, body []byte)

Responses prepares the test server to respond the following n requests using the provided response parameters.

func (*HTTPServer) ServeHTTP 

func (s *HTTPServer) ServeHTTP(w http.ResponseWriter, req *http.Request)

func (*HTTPServer) Start 

func (s *HTTPServer) Start()

func (*HTTPServer) WaitRequest 

func (s *HTTPServer) WaitRequest() *http.Request

WaitRequest returns the next request made to the http server from the queue. If no requests were previously made, it waits until the timeout value for one to be made.

func (*HTTPServer) WaitRequests 

func (s *HTTPServer) WaitRequests(n int) []*http.Request

WaitRequests returns the next n requests made to the http server from the queue. If not enough requests were previously made, it waits until the timeout value for them to be made.

type HTTPSuite 

type HTTPSuite struct{}

func (*HTTPSuite) SetUpSuite 

func (s *HTTPSuite) SetUpSuite(c *gc.C)

func (*HTTPSuite) SetUpTest 

func (s *HTTPSuite) SetUpTest(c *gc.C)

func (*HTTPSuite) TearDownSuite 

func (s *HTTPSuite) TearDownSuite(c *gc.C)

func (*HTTPSuite) TearDownTest 

func (s *HTTPSuite) TearDownTest(c *gc.C)

func (*HTTPSuite) URL 

func (s *HTTPSuite) URL(path string) string

type IsolationSuite 

type IsolationSuite struct {
	OsEnvSuite
	CleanupSuite
	LoggingSuite
}

IsolationSuite isolates the tests from the underlaying system environment, sets up test logging and exposes cleanup facilities.

func (*IsolationSuite) SetUpSuite 

func (s *IsolationSuite) SetUpSuite(c *gc.C)

func (*IsolationSuite) SetUpTest 

func (s *IsolationSuite) SetUpTest(c *gc.C)

func (*IsolationSuite) TearDownSuite 

func (s *IsolationSuite) TearDownSuite(c *gc.C)

func (*IsolationSuite) TearDownTest 

func (s *IsolationSuite) TearDownTest(c *gc.C)

type LoggingCleanupSuite 

type LoggingCleanupSuite struct {
	LoggingSuite
	CleanupSuite
}

LoggingCleanupSuite is defined for backward compatibility. Do not use this suite in new tests.

func (*LoggingCleanupSuite) SetUpSuite 

func (s *LoggingCleanupSuite) SetUpSuite(c *gc.C)

func (*LoggingCleanupSuite) SetUpTest 

func (s *LoggingCleanupSuite) SetUpTest(c *gc.C)

func (*LoggingCleanupSuite) TearDownSuite 

func (s *LoggingCleanupSuite) TearDownSuite(c *gc.C)

func (*LoggingCleanupSuite) TearDownTest 

func (s *LoggingCleanupSuite) TearDownTest(c *gc.C)

type LoggingSuite 

type LoggingSuite struct{}

LoggingSuite redirects the juju logger to the test logger when embedded in a gocheck suite type.

func (*LoggingSuite) SetUpSuite 

func (s *LoggingSuite) SetUpSuite(c *gc.C)

func (*LoggingSuite) SetUpTest 

func (s *LoggingSuite) SetUpTest(c *gc.C)

func (*LoggingSuite) TearDownSuite 

func (s *LoggingSuite) TearDownSuite(c *gc.C)

func (*LoggingSuite) TearDownTest 

func (s *LoggingSuite) TearDownTest(c *gc.C)

type OsEnvSuite 

type OsEnvSuite struct {
	// contains filtered or unexported fields
}

OsEnvSuite isolates the tests from the underlaying system environment. Environment variables are reset in SetUpTest and restored in TearDownTest.

func (*OsEnvSuite) SetUpSuite 

func (s *OsEnvSuite) SetUpSuite(c *gc.C)

func (*OsEnvSuite) SetUpTest 

func (s *OsEnvSuite) SetUpTest(c *gc.C)

func (*OsEnvSuite) TearDownSuite 

func (s *OsEnvSuite) TearDownSuite(c *gc.C)

func (*OsEnvSuite) TearDownTest 

func (s *OsEnvSuite) TearDownTest(c *gc.C)

type PatchExecConfig 

type PatchExecConfig struct {
	// Stderr is the value you'd like written to stderr.
	Stderr string
	// Stdout is the value you'd like written to stdout.
	Stdout string
	// ExitCode controls the exit code of the patched executable.
	ExitCode int
	// Args is a channel that will be sent the args passed to the patched
	// execCommand function.  It should be a channel with a buffer equal to the
	// number of executions you expect to be run (often just 1).  Do not use an
	// unbuffered channel unless you're reading the channel from another
	// goroutine, or you will almost certainly block your tests indefinitely.
	Args chan<- []string
}

PatchExecConfig holds the arguments for PatchExecHelper.GetExecCommand.

type PatchExecHelper 

type PatchExecHelper struct{}

PatchExecHelper is a type that helps you patch out calls to executables by patching out the exec.Command function that creates the exec.Cmd to call them. This is very similar to PatchExecutable above, except it works on windows exe files, is a lot easier to control stderr and stdout, doesn't require arcane bash and batch scripting, and lets you control both the output *and* test the arguments, all without requiring writing any garbage files to disk.

PatchExecHelper *must* be embedded in your test suite in order to function. It adds a test to your testsuite which by default simply does nothing. When the patched exec.Command function is called (returned by GetExecCommand), instead of running the requested executable, we call the test executable with -check.f to rnu only TestExecSuiteHelperProcess, which acts as a configurable main function.

func (PatchExecHelper) GetExecCommand 

func (PatchExecHelper) GetExecCommand(cfg PatchExecConfig) func(string, ...string) *exec.Cmd

GetExecCommand returns a function that can be used to patch out a use of exec.Command. See PatchExecConfig for details about the arguments.

func (PatchExecHelper) TestExecSuiteHelperProcess 

func (PatchExecHelper) TestExecSuiteHelperProcess(c *gc.C)

TestExecSuiteHelperProcess is a fake test which is added to your test suite (because you remembered to embed PatchExecHelper in your suite, right?). It allows us to use the test executable as a helper process to get expected output for tests. When run normally during tests, this test simply does nothing (and passes). The above patched exec.Command runs the test executable with -check.f, it runs this test and enables the configurable behavior. Because the test exits with os.Exit, no additional test output is written.

type Response 

type Response struct {
	Status  int
	Headers map[string]string
	Body    []byte
}

type ResponseFunc 

type ResponseFunc func(path string) Response

type ResponseMap 

type ResponseMap map[string]Response

ResponseMap maps request paths to responses.

type Restorer 

type Restorer func()

Restorer holds a function that can be used to restore some previous state.

func PatchEnvPathPrepend 

func PatchEnvPathPrepend(dir string) Restorer

PatchEnvPathPrepend provides a simple way to prepend path to the start of the PATH environment variable. Returns a function that restores the environment to what it was before.

func PatchEnvironment 

func PatchEnvironment(name, value string) Restorer

PatchEnvironment provides a test a simple way to override a single environment variable. A function is returned that will return the environment to what it was before.

func PatchValue 

func PatchValue(dest, value interface{}) Restorer

PatchValue sets the value pointed to by the given destination to the given value, and returns a function to restore it to its original value. The value must be assignable to the element type of the destination.

func (Restorer) Add 

func (f Restorer) Add(f1 Restorer) Restorer

Add returns a Restorer that restores first f1 and then f. It is valid to call this on a nil Restorer.

func (Restorer) Restore 

func (r Restorer) Restore()

Restore restores some previous state.

type Stub 

type Stub struct {
	// contains filtered or unexported fields
}

Stub is used in testing to stand in for some other value, to record all calls to stubbed methods/functions, and to allow users to set the values that are returned from those calls. Stub is intended to be embedded in another struct that will define the methods to track: 

type stubConn struct {
    *testing.Stub
    Response []byte
}

func newStubConn() *stubConn {
    return &stubConn{
        Stub: &testing.Stub{},
    }
}

// Send implements Connection.
func (fc *stubConn) Send(request string) []byte {
    fc.MethodCall(fc, "Send", request)
    return fc.Response, fc.NextErr()
}

As demonstrated in the example, embed a pointer to testing.Stub. This allows a single testing.Stub to be shared between multiple stubs.

Error return values are set through Stub.Errors. Set it to the errors you want returned (or use the convenience method `SetErrors`). The `NextErr` method returns the errors from Stub.Errors in sequence, falling back to `DefaultError` when the sequence is exhausted. Thus each stubbed method should call `NextErr` to get its error return value.

To validate calls made to the stub in a test call the CheckCalls (or CheckCall) method: 

s.stub.CheckCalls(c, []StubCall{{
    FuncName: "Send",
    Args: []interface{}{
        expected,
    },
}})

s.stub.CheckCall(c, 0, "Send", expected)

Not only is Stub useful for building a interface implementation to use in testing (e.g. a network API client), it is also useful in regular function patching situations: 

type myStub struct {
    *testing.Stub
}

func (f *myStub) SomeFunc(arg interface{}) error {
    f.AddCall("SomeFunc", arg)
    return f.NextErr()
}

s.PatchValue(&somefunc, s.myStub.SomeFunc)

This allows for easily monitoring the args passed to the patched func, as well as controlling the return value from the func in a clean manner (by simply setting the correct field on the stub).

func (*Stub) AddCall 

func (f *Stub) AddCall(funcName string, args ...interface{})

AddCall records a stubbed function call for later inspection using the CheckCalls method. A nil receiver is recorded. Thus for methods use MethodCall. All stubbed functions should call AddCall.

func (*Stub) Calls 

func (f *Stub) Calls() []StubCall

Calls returns the list of calls that have been registered on the stub (i.e. made on the stub's methods), in the order that they were made.

func (*Stub) CheckCall 

func (f *Stub) CheckCall(c *gc.C, index int, funcName string, args ...interface{})

CheckCall checks the recorded call at the given index against the provided values. If the index is out of bounds then the check fails. The receiver is not checked. If it is significant for a test then it can be checked separately: 

c.Check(mystub.Receivers[index], gc.Equals, expected)

func (*Stub) CheckCallNames 

func (f *Stub) CheckCallNames(c *gc.C, expected ...string) bool

CheckCallNames verifies that the in-order list of called method names matches the expected calls.

func (*Stub) CheckCalls 

func (f *Stub) CheckCalls(c *gc.C, expected []StubCall)

CheckCalls verifies that the history of calls on the stub's methods matches the expected calls. The receivers are not checked. If they are significant then check Stub.Receivers separately.

func (*Stub) CheckCallsUnordered 

func (f *Stub) CheckCallsUnordered(c *gc.C, expected []StubCall)

CheckCallsUnordered verifies that the history of calls on the stub's methods contains the expected calls. The receivers are not checked. If they are significant then check Stub.Receivers separately. This method explicitly does not check if the calls were made in order, just whether they have been made.

func (*Stub) CheckErrors 

func (f *Stub) CheckErrors(c *gc.C, expected ...error) bool

CheckErrors verifies that the list of errors is matches the expected list.

func (*Stub) CheckNoCalls 

func (f *Stub) CheckNoCalls(c *gc.C)

CheckNoCalls verifies that none of the stub's methods have been called.

func (*Stub) CheckReceivers 

func (f *Stub) CheckReceivers(c *gc.C, expected ...interface{}) bool

CheckReceivers verifies that the list of errors is matches the expected list.

func (*Stub) MethodCall 

func (f *Stub) MethodCall(receiver interface{}, funcName string, args ...interface{})

MethodCall records a stubbed method call for later inspection using the CheckCalls method. The receiver is added to Stub.Receivers.

func (*Stub) NextErr 

func (f *Stub) NextErr() error

NextErr returns the error that should be returned on the nth call to any method on the stub. It should be called for the error return in all stubbed methods.

func (*Stub) PopNoErr 

func (f *Stub) PopNoErr()

PopNoErr pops off the next error without returning it. If the error is not nil then PopNoErr will panic.

PopNoErr is useful in stub methods that do not return an error.

func (*Stub) ResetCalls 

func (f *Stub) ResetCalls()

ResetCalls erases the calls recorded by this Stub.

func (*Stub) SetErrors 

func (f *Stub) SetErrors(errors ...error)

SetErrors sets the sequence of error returns for the stub. Each call to Err (thus each stub method call) pops an error off the front. So frontloading nil here will allow calls to pass, followed by a failure.

type StubCall 

type StubCall struct {
	// Funcname is the name of the function that was called.
	FuncName string

	// Args is the set of arguments passed to the function. They are
	// in the same order as the function's parameters
	Args []interface{}
}

StubCall records the name of a called function and the passed args.

type TCPProxy 

type TCPProxy struct {
	// contains filtered or unexported fields
}

TCPProxy is a simple TCP proxy that can be used to deliberately break TCP connections.

func NewTCPProxy 

func NewTCPProxy(c *gc.C, remoteAddr string) *TCPProxy

NewTCPProxy runs a proxy that copies to and from the given remote TCP address. When the proxy is closed, its listener and all connections will be closed.

func (*TCPProxy) Addr 

func (p *TCPProxy) Addr() string

Addr returns the TCP address of the proxy. Dialing this address will cause a connection to be made to the remote address; any data written will be written there, and any data read from the remote address will be available to read locally.

func (*TCPProxy) Close 

func (p *TCPProxy) Close() error

Close closes the TCPProxy and any connections that are currently active.

func (*TCPProxy) CloseConns 

func (p *TCPProxy) CloseConns()

CloseConns closes all the connections that are currently active. The proxy itself remains active.

func (*TCPProxy) PauseConns 

func (p *TCPProxy) PauseConns()

PauseConns stops all traffic flowing through the proxy.

func (*TCPProxy) ResumeConns 

func (p *TCPProxy) ResumeConns()

ResumeConns resumes sending traffic through the proxy.

type TestFile 

type TestFile struct {
	Name, Data string
}

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