onasty @ a4b3d8e5246c848a66cc27013e6aeb22d1660da2

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         package mailer

      
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        -import "context"

      
        
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        +import (

      
        
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        +	"context"

      
        
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        +	"sync"

      
        
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        +)

      
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         var _ Mailer = (*TestMailer)(nil)

      
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         type TestMailer struct {

      
        
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        +	mu sync.Mutex

      
        
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        +

      
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         	emails map[string]string

      
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         }

      
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         // that implementation of Mailer stores all sent email in memory

      
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         // to get the last email sent to a specific email use GetLastSentEmailToEmail

      
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         func NewTestMailer() *TestMailer {

      
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        -	return &TestMailer{

      
        
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        +	return &TestMailer{ //nolint:exhaustruct

      
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         		emails: make(map[string]string),

      
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         	}

      
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         }

      
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         func (t *TestMailer) Send(_ context.Context, to, _, content string) error {

      
        
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        +	t.mu.Lock()

      
        
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        +	defer t.mu.Unlock()

      
        
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        +

      
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         	t.emails[to] = content

      
        
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        +

      
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         	return nil

      
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         }

      
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         // GetLastSentEmailToEmail returns the last email sent to a specific email

      
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         func (t *TestMailer) GetLastSentEmailToEmail(email string) string {

      
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        -	return t.emails[email]

      
        
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        +	t.mu.Lock()

      
        
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        +	defer t.mu.Unlock()

      
        
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        +

      
        
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        +	e := t.emails[email]

      
        
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        +

      
        
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        +	return e

      
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         }