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      1 // Copyright 2014 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CRYPTO_SCOPED_TEST_SYSTEM_NSS_KEY_SLOT_H_
      6 #define CRYPTO_SCOPED_TEST_SYSTEM_NSS_KEY_SLOT_H_
      7 
      8 #include <memory>
      9 
     10 #include "base/macros.h"
     11 #include "crypto/crypto_export.h"
     12 
     13 // Forward declaration, from <pk11pub.h>
     14 typedef struct PK11SlotInfoStr PK11SlotInfo;
     15 
     16 namespace crypto {
     17 
     18 class ScopedTestNSSDB;
     19 
     20 // Opens a persistent NSS software database in a temporary directory and sets
     21 // the test system slot to the opened database. This helper should be created in
     22 // tests to fake the system token that is usually provided by the Chaps module.
     23 // |slot| is exposed through |GetSystemNSSKeySlot| and |IsTPMTokenReady| will
     24 // return true.
     25 // |InitializeTPMTokenAndSystemSlot|, which triggers the TPM initialization,
     26 // does not have to be called if this helper is used.
     27 // At most one instance of this helper must be used at a time.
     28 class CRYPTO_EXPORT ScopedTestSystemNSSKeySlot {
     29  public:
     30   explicit ScopedTestSystemNSSKeySlot();
     31   ~ScopedTestSystemNSSKeySlot();
     32 
     33   bool ConstructedSuccessfully() const;
     34   PK11SlotInfo* slot() const;
     35 
     36  private:
     37   std::unique_ptr<ScopedTestNSSDB> test_db_;
     38 
     39   DISALLOW_COPY_AND_ASSIGN(ScopedTestSystemNSSKeySlot);
     40 };
     41 
     42 }  // namespace crypto
     43 
     44 #endif  // CRYPTO_SCOPED_TEST_SYSTEM_NSS_KEY_SLOT_H_
     45