59 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			Go
		
	
	
	
			
		
		
	
	
			59 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			Go
		
	
	
	
| package tests
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| 
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| import (
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| 	"context"
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| 	"fmt"
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| 	"time"
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| )
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| 
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| // entry is a MockStore cache entry with an expiration
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| type entry struct {
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| 	data       []byte
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| 	expiration time.Duration
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| }
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| 
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| // MockStore is a generic in-memory implementation of persistence.Store
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| // for mocking in tests
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| type MockStore struct {
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| 	cache   map[string]entry
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| 	elapsed time.Duration
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| }
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| 
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| // NewMockStore creates a MockStore
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| func NewMockStore() *MockStore {
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| 	return &MockStore{
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| 		cache:   map[string]entry{},
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| 		elapsed: 0 * time.Second,
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| 	}
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| }
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| 
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| // Save sets a key to the data to the memory cache
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| func (s *MockStore) Save(_ context.Context, key string, value []byte, exp time.Duration) error {
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| 	s.cache[key] = entry{
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| 		data:       value,
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| 		expiration: exp,
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| 	}
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| 	return nil
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| }
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| 
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| // Load gets data from the memory cache via a key
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| func (s *MockStore) Load(_ context.Context, key string) ([]byte, error) {
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| 	entry, ok := s.cache[key]
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| 	if !ok || entry.expiration <= s.elapsed {
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| 		delete(s.cache, key)
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| 		return nil, fmt.Errorf("key not found: %s", key)
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| 	}
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| 	return entry.data, nil
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| }
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| 
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| // Clear deletes an entry from the memory cache
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| func (s *MockStore) Clear(_ context.Context, key string) error {
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| 	delete(s.cache, key)
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| 	return nil
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| }
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| 
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| // FastForward simulates the flow of time to test expirations
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| func (s *MockStore) FastForward(duration time.Duration) {
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| 	s.elapsed += duration
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| }
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