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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,50 @@ | ||
| package mock | ||
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| import "reflect" | ||
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| // Call record the input and output of a method call | ||
| type Call struct { | ||
| Input []any | ||
| Return []any | ||
| } | ||
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| // Calls returns all the calls of method | ||
| func (m *Mock) Calls(method any) []Call { | ||
| panicIfNotFunc(method) | ||
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| m.lock.Lock() | ||
| defer m.lock.Unlock() | ||
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| return m.calls[fnName(method)] | ||
| } | ||
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| // Record all the input and output of a method | ||
| func (m *Mock) spy(name string, fn any) any { | ||
| v := reflect.ValueOf(fn) | ||
| t := v.Type() | ||
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| if m.calls == nil { | ||
| m.calls = map[string][]Call{} | ||
| } | ||
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| return reflect.MakeFunc(t, func(args []reflect.Value) []reflect.Value { | ||
| ret := v.Call(args) | ||
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| m.lock.Lock() | ||
| m.calls[name] = append(m.calls[name], Call{ | ||
| valToInterface(args), | ||
| valToInterface(ret), | ||
| }) | ||
| m.lock.Unlock() | ||
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| return ret | ||
| }).Interface() | ||
| } | ||
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| func valToInterface(list []reflect.Value) []any { | ||
| ret := make([]any, len(list)) | ||
| for i, v := range list { | ||
| ret[i] = v.Interface() | ||
| } | ||
| return ret | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,137 @@ | ||
| package mock | ||
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| import ( | ||
| "fmt" | ||
| "reflect" | ||
| "sync" | ||
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| "github.com/ysmood/got/lib/utils" | ||
| ) | ||
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| // Stub the method with stub | ||
| func Stub[M any](mock Fallbackable, method M, stub M) { | ||
| panicIfNotFunc(method) | ||
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| m := toMock(mock) | ||
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| m.lock.Lock() | ||
| defer m.lock.Unlock() | ||
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| if m.stubs == nil { | ||
| m.stubs = map[string]interface{}{} | ||
| } | ||
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| name := fnName(method) | ||
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| m.stubs[name] = m.spy(name, stub) | ||
| } | ||
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| // StubOn utils | ||
| type StubOn struct { | ||
| when []*StubWhen | ||
| } | ||
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| // StubWhen utils | ||
| type StubWhen struct { | ||
| lock *sync.Mutex | ||
| on *StubOn | ||
| in []interface{} | ||
| ret *StubReturn | ||
| count int // how many times this stub has been matched | ||
| } | ||
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| // StubReturn utils | ||
| type StubReturn struct { | ||
| on *StubOn | ||
| out []reflect.Value | ||
| times *StubTimes | ||
| } | ||
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| // StubTimes utils | ||
| type StubTimes struct { | ||
| count int | ||
| } | ||
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| // On helper to stub methods to conditionally return values. | ||
| func On[M any](mock Fallbackable, method M) *StubOn { | ||
| panicIfNotFunc(method) | ||
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| m := toMock(mock) | ||
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| s := &StubOn{ | ||
| when: []*StubWhen{}, | ||
| } | ||
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| eq := func(in, arg []interface{}) bool { | ||
| for i := 0; i < len(in); i++ { | ||
| if in[i] != Any && utils.Compare(in[i], arg[i]) != 0 { | ||
| return false | ||
| } | ||
| } | ||
| return true | ||
| } | ||
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| t := reflect.TypeOf(method) | ||
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| fn := reflect.MakeFunc(t, func(args []reflect.Value) []reflect.Value { | ||
| argsIt := utils.ToInterfaces(args) | ||
| for _, when := range s.when { | ||
| if eq(when.in, argsIt) { | ||
| when.lock.Lock() | ||
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| when.ret.times.count-- | ||
| if when.ret.times.count == 0 { | ||
| m.Stop(method) | ||
| } | ||
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| when.count++ | ||
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| when.lock.Unlock() | ||
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| return toReturnValues(t, when.ret.out) | ||
| } | ||
| } | ||
| panic(fmt.Sprintf("No mock.StubOn.When matches: %#v", argsIt)) | ||
| }) | ||
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| Stub(m, method, fn.Interface().(M)) | ||
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| return s | ||
| } | ||
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| // Any input | ||
| var Any = struct{}{} | ||
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| // When input args of stubbed method matches in | ||
| func (s *StubOn) When(in ...interface{}) *StubWhen { | ||
| w := &StubWhen{lock: &sync.Mutex{}, on: s, in: in} | ||
| s.when = append(s.when, w) | ||
| return w | ||
| } | ||
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| // Return the out as the return values of stubbed method | ||
| func (s *StubWhen) Return(out ...interface{}) *StubReturn { | ||
| r := &StubReturn{on: s.on, out: utils.ToValues(out)} | ||
| r.Times(0) | ||
| s.ret = r | ||
| return r | ||
| } | ||
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| // Count returns how many times this condition has been matched | ||
| func (s *StubWhen) Count() int { | ||
| s.lock.Lock() | ||
| defer s.lock.Unlock() | ||
| return s.count | ||
| } | ||
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| // Times specifies how how many stubs before stop, if n <= 0 it will never stop. | ||
| func (s *StubReturn) Times(n int) *StubOn { | ||
| t := &StubTimes{count: n} | ||
| s.times = t | ||
| return s.on | ||
| } | ||
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| // Once specifies stubs only once before stop | ||
| func (s *StubReturn) Once() *StubOn { | ||
| return s.Times(1) | ||
| } |