mirror of
https://github.com/woodpecker-ci/woodpecker.git
synced 2024-12-11 19:16:32 +00:00
559 lines
16 KiB
Go
559 lines
16 KiB
Go
package mock
|
|
|
|
import (
|
|
"fmt"
|
|
"github.com/drone/drone/Godeps/_workspace/src/github.com/stretchr/objx"
|
|
"github.com/drone/drone/Godeps/_workspace/src/github.com/stretchr/testify/assert"
|
|
"reflect"
|
|
"runtime"
|
|
"strings"
|
|
"sync"
|
|
"time"
|
|
)
|
|
|
|
// TestingT is an interface wrapper around *testing.T
|
|
type TestingT interface {
|
|
Logf(format string, args ...interface{})
|
|
Errorf(format string, args ...interface{})
|
|
}
|
|
|
|
/*
|
|
Call
|
|
*/
|
|
|
|
// Call represents a method call and is used for setting expectations,
|
|
// as well as recording activity.
|
|
type Call struct {
|
|
|
|
// The name of the method that was or will be called.
|
|
Method string
|
|
|
|
// Holds the arguments of the method.
|
|
Arguments Arguments
|
|
|
|
// Holds the arguments that should be returned when
|
|
// this method is called.
|
|
ReturnArguments Arguments
|
|
|
|
// The number of times to return the return arguments when setting
|
|
// expectations. 0 means to always return the value.
|
|
Repeatability int
|
|
|
|
// Holds a channel that will be used to block the Return until it either
|
|
// recieves a message or is closed. nil means it returns immediately.
|
|
WaitFor <-chan time.Time
|
|
|
|
// Holds a handler used to manipulate arguments content that are passed by
|
|
// reference. It's useful when mocking methods such as unmarshalers or
|
|
// decoders.
|
|
Run func(Arguments)
|
|
}
|
|
|
|
// Mock is the workhorse used to track activity on another object.
|
|
// For an example of its usage, refer to the "Example Usage" section at the top of this document.
|
|
type Mock struct {
|
|
|
|
// The method name that is currently
|
|
// being referred to by the On method.
|
|
onMethodName string
|
|
|
|
// An array of the arguments that are
|
|
// currently being referred to by the On method.
|
|
onMethodArguments Arguments
|
|
|
|
// Represents the calls that are expected of
|
|
// an object.
|
|
ExpectedCalls []Call
|
|
|
|
// Holds the calls that were made to this mocked object.
|
|
Calls []Call
|
|
|
|
// TestData holds any data that might be useful for testing. Testify ignores
|
|
// this data completely allowing you to do whatever you like with it.
|
|
testData objx.Map
|
|
|
|
mutex sync.Mutex
|
|
}
|
|
|
|
// TestData holds any data that might be useful for testing. Testify ignores
|
|
// this data completely allowing you to do whatever you like with it.
|
|
func (m *Mock) TestData() objx.Map {
|
|
|
|
if m.testData == nil {
|
|
m.testData = make(objx.Map)
|
|
}
|
|
|
|
return m.testData
|
|
}
|
|
|
|
/*
|
|
Setting expectations
|
|
*/
|
|
|
|
// On starts a description of an expectation of the specified method
|
|
// being called.
|
|
//
|
|
// Mock.On("MyMethod", arg1, arg2)
|
|
func (m *Mock) On(methodName string, arguments ...interface{}) *Mock {
|
|
m.onMethodName = methodName
|
|
m.onMethodArguments = arguments
|
|
return m
|
|
}
|
|
|
|
// Return finishes a description of an expectation of the method (and arguments)
|
|
// specified in the most recent On method call.
|
|
//
|
|
// Mock.On("MyMethod", arg1, arg2).Return(returnArg1, returnArg2)
|
|
func (m *Mock) Return(returnArguments ...interface{}) *Mock {
|
|
m.ExpectedCalls = append(m.ExpectedCalls, Call{m.onMethodName, m.onMethodArguments, returnArguments, 0, nil, nil})
|
|
return m
|
|
}
|
|
|
|
// Once indicates that that the mock should only return the value once.
|
|
//
|
|
// Mock.On("MyMethod", arg1, arg2).Return(returnArg1, returnArg2).Once()
|
|
func (m *Mock) Once() {
|
|
m.ExpectedCalls[len(m.ExpectedCalls)-1].Repeatability = 1
|
|
}
|
|
|
|
// Twice indicates that that the mock should only return the value twice.
|
|
//
|
|
// Mock.On("MyMethod", arg1, arg2).Return(returnArg1, returnArg2).Twice()
|
|
func (m *Mock) Twice() {
|
|
m.ExpectedCalls[len(m.ExpectedCalls)-1].Repeatability = 2
|
|
}
|
|
|
|
// Times indicates that that the mock should only return the indicated number
|
|
// of times.
|
|
//
|
|
// Mock.On("MyMethod", arg1, arg2).Return(returnArg1, returnArg2).Times(5)
|
|
func (m *Mock) Times(i int) {
|
|
m.ExpectedCalls[len(m.ExpectedCalls)-1].Repeatability = i
|
|
}
|
|
|
|
// WaitUntil sets the channel that will block the mock's return until its closed
|
|
// or a message is received.
|
|
//
|
|
// Mock.On("MyMethod", arg1, arg2).WaitUntil(time.After(time.Second))
|
|
func (m *Mock) WaitUntil(w <-chan time.Time) *Mock {
|
|
m.ExpectedCalls[len(m.ExpectedCalls)-1].WaitFor = w
|
|
return m
|
|
}
|
|
|
|
// After sets how long to block until the call returns
|
|
//
|
|
// Mock.On("MyMethod", arg1, arg2).After(time.Second)
|
|
func (m *Mock) After(d time.Duration) *Mock {
|
|
return m.WaitUntil(time.After(d))
|
|
}
|
|
|
|
// Run sets a handler to be called before returning. It can be used when
|
|
// mocking a method such as unmarshalers that takes a pointer to a struct and
|
|
// sets properties in such struct
|
|
//
|
|
// Mock.On("Unmarshal", AnythingOfType("*map[string]interface{}").Return().Run(function(args Arguments) {
|
|
// arg := args.Get(0).(*map[string]interface{})
|
|
// arg["foo"] = "bar"
|
|
// })
|
|
func (m *Mock) Run(fn func(Arguments)) *Mock {
|
|
m.ExpectedCalls[len(m.ExpectedCalls)-1].Run = fn
|
|
return m
|
|
}
|
|
|
|
/*
|
|
Recording and responding to activity
|
|
*/
|
|
|
|
func (m *Mock) findExpectedCall(method string, arguments ...interface{}) (int, *Call) {
|
|
for i, call := range m.ExpectedCalls {
|
|
if call.Method == method && call.Repeatability > -1 {
|
|
|
|
_, diffCount := call.Arguments.Diff(arguments)
|
|
if diffCount == 0 {
|
|
return i, &call
|
|
}
|
|
|
|
}
|
|
}
|
|
return -1, nil
|
|
}
|
|
|
|
func (m *Mock) findClosestCall(method string, arguments ...interface{}) (bool, *Call) {
|
|
|
|
diffCount := 0
|
|
var closestCall *Call = nil
|
|
|
|
for _, call := range m.ExpectedCalls {
|
|
if call.Method == method {
|
|
|
|
_, tempDiffCount := call.Arguments.Diff(arguments)
|
|
if tempDiffCount < diffCount || diffCount == 0 {
|
|
diffCount = tempDiffCount
|
|
closestCall = &call
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
if closestCall == nil {
|
|
return false, nil
|
|
}
|
|
|
|
return true, closestCall
|
|
}
|
|
|
|
func callString(method string, arguments Arguments, includeArgumentValues bool) string {
|
|
|
|
var argValsString string = ""
|
|
if includeArgumentValues {
|
|
var argVals []string
|
|
for argIndex, arg := range arguments {
|
|
argVals = append(argVals, fmt.Sprintf("%d: %v", argIndex, arg))
|
|
}
|
|
argValsString = fmt.Sprintf("\n\t\t%s", strings.Join(argVals, "\n\t\t"))
|
|
}
|
|
|
|
return fmt.Sprintf("%s(%s)%s", method, arguments.String(), argValsString)
|
|
}
|
|
|
|
// Called tells the mock object that a method has been called, and gets an array
|
|
// of arguments to return. Panics if the call is unexpected (i.e. not preceeded by
|
|
// appropriate .On .Return() calls)
|
|
// If Call.WaitFor is set, blocks until the channel is closed or receives a message.
|
|
func (m *Mock) Called(arguments ...interface{}) Arguments {
|
|
defer m.mutex.Unlock()
|
|
m.mutex.Lock()
|
|
|
|
// get the calling function's name
|
|
pc, _, _, ok := runtime.Caller(1)
|
|
if !ok {
|
|
panic("Couldn't get the caller information")
|
|
}
|
|
functionPath := runtime.FuncForPC(pc).Name()
|
|
parts := strings.Split(functionPath, ".")
|
|
functionName := parts[len(parts)-1]
|
|
|
|
found, call := m.findExpectedCall(functionName, arguments...)
|
|
|
|
switch {
|
|
case found < 0:
|
|
// we have to fail here - because we don't know what to do
|
|
// as the return arguments. This is because:
|
|
//
|
|
// a) this is a totally unexpected call to this method,
|
|
// b) the arguments are not what was expected, or
|
|
// c) the developer has forgotten to add an accompanying On...Return pair.
|
|
|
|
closestFound, closestCall := m.findClosestCall(functionName, arguments...)
|
|
|
|
if closestFound {
|
|
panic(fmt.Sprintf("\n\nmock: Unexpected Method Call\n-----------------------------\n\n%s\n\nThe closest call I have is: \n\n%s\n", callString(functionName, arguments, true), callString(functionName, closestCall.Arguments, true)))
|
|
} else {
|
|
panic(fmt.Sprintf("\nassert: mock: I don't know what to return because the method call was unexpected.\n\tEither do Mock.On(\"%s\").Return(...) first, or remove the %s() call.\n\tThis method was unexpected:\n\t\t%s\n\tat: %s", functionName, functionName, callString(functionName, arguments, true), assert.CallerInfo()))
|
|
}
|
|
case call.Repeatability == 1:
|
|
call.Repeatability = -1
|
|
m.ExpectedCalls[found] = *call
|
|
case call.Repeatability > 1:
|
|
call.Repeatability -= 1
|
|
m.ExpectedCalls[found] = *call
|
|
}
|
|
|
|
// add the call
|
|
m.Calls = append(m.Calls, Call{functionName, arguments, make([]interface{}, 0), 0, nil, nil})
|
|
|
|
// block if specified
|
|
if call.WaitFor != nil {
|
|
<-call.WaitFor
|
|
}
|
|
|
|
if call.Run != nil {
|
|
call.Run(arguments)
|
|
}
|
|
|
|
return call.ReturnArguments
|
|
|
|
}
|
|
|
|
/*
|
|
Assertions
|
|
*/
|
|
|
|
// AssertExpectationsForObjects asserts that everything specified with On and Return
|
|
// of the specified objects was in fact called as expected.
|
|
//
|
|
// Calls may have occurred in any order.
|
|
func AssertExpectationsForObjects(t TestingT, testObjects ...interface{}) bool {
|
|
var success bool = true
|
|
for _, obj := range testObjects {
|
|
mockObj := obj.(Mock)
|
|
success = success && mockObj.AssertExpectations(t)
|
|
}
|
|
return success
|
|
}
|
|
|
|
// AssertExpectations asserts that everything specified with On and Return was
|
|
// in fact called as expected. Calls may have occurred in any order.
|
|
func (m *Mock) AssertExpectations(t TestingT) bool {
|
|
|
|
var somethingMissing bool = false
|
|
var failedExpectations int = 0
|
|
|
|
// iterate through each expectation
|
|
for _, expectedCall := range m.ExpectedCalls {
|
|
switch {
|
|
case !m.methodWasCalled(expectedCall.Method, expectedCall.Arguments):
|
|
somethingMissing = true
|
|
failedExpectations++
|
|
t.Logf("\u274C\t%s(%s)", expectedCall.Method, expectedCall.Arguments.String())
|
|
case expectedCall.Repeatability > 0:
|
|
somethingMissing = true
|
|
failedExpectations++
|
|
default:
|
|
t.Logf("\u2705\t%s(%s)", expectedCall.Method, expectedCall.Arguments.String())
|
|
}
|
|
}
|
|
|
|
if somethingMissing {
|
|
t.Errorf("FAIL: %d out of %d expectation(s) were met.\n\tThe code you are testing needs to make %d more call(s).\n\tat: %s", len(m.ExpectedCalls)-failedExpectations, len(m.ExpectedCalls), failedExpectations, assert.CallerInfo())
|
|
}
|
|
|
|
return !somethingMissing
|
|
}
|
|
|
|
// AssertNumberOfCalls asserts that the method was called expectedCalls times.
|
|
func (m *Mock) AssertNumberOfCalls(t TestingT, methodName string, expectedCalls int) bool {
|
|
var actualCalls int = 0
|
|
for _, call := range m.Calls {
|
|
if call.Method == methodName {
|
|
actualCalls++
|
|
}
|
|
}
|
|
return assert.Equal(t, actualCalls, expectedCalls, fmt.Sprintf("Expected number of calls (%d) does not match the actual number of calls (%d).", expectedCalls, actualCalls))
|
|
}
|
|
|
|
// AssertCalled asserts that the method was called.
|
|
func (m *Mock) AssertCalled(t TestingT, methodName string, arguments ...interface{}) bool {
|
|
if !assert.True(t, m.methodWasCalled(methodName, arguments), fmt.Sprintf("The \"%s\" method should have been called with %d argument(s), but was not.", methodName, len(arguments))) {
|
|
t.Logf("%v", m.ExpectedCalls)
|
|
return false
|
|
}
|
|
return true
|
|
}
|
|
|
|
// AssertNotCalled asserts that the method was not called.
|
|
func (m *Mock) AssertNotCalled(t TestingT, methodName string, arguments ...interface{}) bool {
|
|
if !assert.False(t, m.methodWasCalled(methodName, arguments), fmt.Sprintf("The \"%s\" method was called with %d argument(s), but should NOT have been.", methodName, len(arguments))) {
|
|
t.Logf("%v", m.ExpectedCalls)
|
|
return false
|
|
}
|
|
return true
|
|
}
|
|
|
|
func (m *Mock) methodWasCalled(methodName string, expected []interface{}) bool {
|
|
for _, call := range m.Calls {
|
|
if call.Method == methodName {
|
|
|
|
_, differences := Arguments(expected).Diff(call.Arguments)
|
|
|
|
if differences == 0 {
|
|
// found the expected call
|
|
return true
|
|
}
|
|
|
|
}
|
|
}
|
|
// we didn't find the expected call
|
|
return false
|
|
}
|
|
|
|
/*
|
|
Arguments
|
|
*/
|
|
|
|
// Arguments holds an array of method arguments or return values.
|
|
type Arguments []interface{}
|
|
|
|
const (
|
|
// The "any" argument. Used in Diff and Assert when
|
|
// the argument being tested shouldn't be taken into consideration.
|
|
Anything string = "mock.Anything"
|
|
)
|
|
|
|
// AnythingOfTypeArgument is a string that contains the type of an argument
|
|
// for use when type checking. Used in Diff and Assert.
|
|
type AnythingOfTypeArgument string
|
|
|
|
// AnythingOfType returns an AnythingOfTypeArgument object containing the
|
|
// name of the type to check for. Used in Diff and Assert.
|
|
//
|
|
// For example:
|
|
// Assert(t, AnythingOfType("string"), AnythingOfType("int"))
|
|
func AnythingOfType(t string) AnythingOfTypeArgument {
|
|
return AnythingOfTypeArgument(t)
|
|
}
|
|
|
|
// Get Returns the argument at the specified index.
|
|
func (args Arguments) Get(index int) interface{} {
|
|
if index+1 > len(args) {
|
|
panic(fmt.Sprintf("assert: arguments: Cannot call Get(%d) because there are %d argument(s).", index, len(args)))
|
|
}
|
|
return args[index]
|
|
}
|
|
|
|
// Is gets whether the objects match the arguments specified.
|
|
func (args Arguments) Is(objects ...interface{}) bool {
|
|
for i, obj := range args {
|
|
if obj != objects[i] {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
|
|
// Diff gets a string describing the differences between the arguments
|
|
// and the specified objects.
|
|
//
|
|
// Returns the diff string and number of differences found.
|
|
func (args Arguments) Diff(objects []interface{}) (string, int) {
|
|
|
|
var output string = "\n"
|
|
var differences int
|
|
|
|
var maxArgCount int = len(args)
|
|
if len(objects) > maxArgCount {
|
|
maxArgCount = len(objects)
|
|
}
|
|
|
|
for i := 0; i < maxArgCount; i++ {
|
|
var actual, expected interface{}
|
|
|
|
if len(objects) <= i {
|
|
actual = "(Missing)"
|
|
} else {
|
|
actual = objects[i]
|
|
}
|
|
|
|
if len(args) <= i {
|
|
expected = "(Missing)"
|
|
} else {
|
|
expected = args[i]
|
|
}
|
|
|
|
if reflect.TypeOf(expected) == reflect.TypeOf((*AnythingOfTypeArgument)(nil)).Elem() {
|
|
|
|
// type checking
|
|
if reflect.TypeOf(actual).Name() != string(expected.(AnythingOfTypeArgument)) && reflect.TypeOf(actual).String() != string(expected.(AnythingOfTypeArgument)) {
|
|
// not match
|
|
differences++
|
|
output = fmt.Sprintf("%s\t%d: \u274C type %s != type %s - %s\n", output, i, expected, reflect.TypeOf(actual).Name(), actual)
|
|
}
|
|
|
|
} else {
|
|
|
|
// normal checking
|
|
|
|
if assert.ObjectsAreEqual(expected, Anything) || assert.ObjectsAreEqual(actual, Anything) || assert.ObjectsAreEqual(actual, expected) {
|
|
// match
|
|
output = fmt.Sprintf("%s\t%d: \u2705 %s == %s\n", output, i, actual, expected)
|
|
} else {
|
|
// not match
|
|
differences++
|
|
output = fmt.Sprintf("%s\t%d: \u274C %s != %s\n", output, i, actual, expected)
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
if differences == 0 {
|
|
return "No differences.", differences
|
|
}
|
|
|
|
return output, differences
|
|
|
|
}
|
|
|
|
// Assert compares the arguments with the specified objects and fails if
|
|
// they do not exactly match.
|
|
func (args Arguments) Assert(t TestingT, objects ...interface{}) bool {
|
|
|
|
// get the differences
|
|
diff, diffCount := args.Diff(objects)
|
|
|
|
if diffCount == 0 {
|
|
return true
|
|
}
|
|
|
|
// there are differences... report them...
|
|
t.Logf(diff)
|
|
t.Errorf("%sArguments do not match.", assert.CallerInfo())
|
|
|
|
return false
|
|
|
|
}
|
|
|
|
// String gets the argument at the specified index. Panics if there is no argument, or
|
|
// if the argument is of the wrong type.
|
|
//
|
|
// If no index is provided, String() returns a complete string representation
|
|
// of the arguments.
|
|
func (args Arguments) String(indexOrNil ...int) string {
|
|
|
|
if len(indexOrNil) == 0 {
|
|
// normal String() method - return a string representation of the args
|
|
var argsStr []string
|
|
for _, arg := range args {
|
|
argsStr = append(argsStr, fmt.Sprintf("%s", reflect.TypeOf(arg)))
|
|
}
|
|
return strings.Join(argsStr, ",")
|
|
} else if len(indexOrNil) == 1 {
|
|
// Index has been specified - get the argument at that index
|
|
var index int = indexOrNil[0]
|
|
var s string
|
|
var ok bool
|
|
if s, ok = args.Get(index).(string); !ok {
|
|
panic(fmt.Sprintf("assert: arguments: String(%d) failed because object wasn't correct type: %s", index, args.Get(index)))
|
|
}
|
|
return s
|
|
}
|
|
|
|
panic(fmt.Sprintf("assert: arguments: Wrong number of arguments passed to String. Must be 0 or 1, not %d", len(indexOrNil)))
|
|
|
|
}
|
|
|
|
// Int gets the argument at the specified index. Panics if there is no argument, or
|
|
// if the argument is of the wrong type.
|
|
func (args Arguments) Int(index int) int {
|
|
var s int
|
|
var ok bool
|
|
if s, ok = args.Get(index).(int); !ok {
|
|
panic(fmt.Sprintf("assert: arguments: Int(%d) failed because object wasn't correct type: %v", index, args.Get(index)))
|
|
}
|
|
return s
|
|
}
|
|
|
|
// Error gets the argument at the specified index. Panics if there is no argument, or
|
|
// if the argument is of the wrong type.
|
|
func (args Arguments) Error(index int) error {
|
|
obj := args.Get(index)
|
|
var s error
|
|
var ok bool
|
|
if obj == nil {
|
|
return nil
|
|
}
|
|
if s, ok = obj.(error); !ok {
|
|
panic(fmt.Sprintf("assert: arguments: Error(%d) failed because object wasn't correct type: %v", index, args.Get(index)))
|
|
}
|
|
return s
|
|
}
|
|
|
|
// Bool gets the argument at the specified index. Panics if there is no argument, or
|
|
// if the argument is of the wrong type.
|
|
func (args Arguments) Bool(index int) bool {
|
|
var s bool
|
|
var ok bool
|
|
if s, ok = args.Get(index).(bool); !ok {
|
|
panic(fmt.Sprintf("assert: arguments: Bool(%d) failed because object wasn't correct type: %v", index, args.Get(index)))
|
|
}
|
|
return s
|
|
}
|