92 lines
2.5 KiB
Go
92 lines
2.5 KiB
Go
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// Copyright (c) 2020-2021 Uber Technologies, Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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package fxlog
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import (
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"reflect"
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"sync"
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"go.uber.org/fx/fxevent"
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)
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// Events is a list of events captured by fxlog.Spy.
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type Events []fxevent.Event
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// Len returns the number of events in this list.
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func (es Events) Len() int { return len(es) }
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// SelectByTypeName returns a new list with only events matching the specified
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// type.
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func (es Events) SelectByTypeName(name string) Events {
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var out Events
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for _, e := range es {
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if reflect.TypeOf(e).Elem().Name() == name {
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out = append(out, e)
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}
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}
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return out
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}
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// Spy is an Fx event logger that captures emitted events and/or logged
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// statements. It may be used in tests of Fx logs.
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type Spy struct {
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mu sync.RWMutex
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events Events
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}
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var _ fxevent.Logger = &Spy{}
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// LogEvent appends an Event.
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func (s *Spy) LogEvent(event fxevent.Event) {
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s.mu.Lock()
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s.events = append(s.events, event)
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s.mu.Unlock()
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}
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// Events returns all captured events.
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func (s *Spy) Events() Events {
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s.mu.RLock()
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defer s.mu.RUnlock()
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events := make(Events, len(s.events))
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copy(events, s.events)
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return events
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}
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// EventTypes returns all captured event types.
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func (s *Spy) EventTypes() []string {
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s.mu.RLock()
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defer s.mu.RUnlock()
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types := make([]string, len(s.events))
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for i, e := range s.events {
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types[i] = reflect.TypeOf(e).Elem().Name()
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}
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return types
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}
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// Reset clears all messages and events from the Spy.
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func (s *Spy) Reset() {
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s.mu.Lock()
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s.events = s.events[:0]
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s.mu.Unlock()
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}
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