libcryfs/test/cryfs/config/CryConfigCreatorTest.cpp

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#include <gtest/gtest.h>
#include <gmock/gmock.h>
#include <cryfs/config/CryConfigCreator.h>
#include <cryfs/config/CryCipher.h>
#include <cpp-utils/crypto/symmetric/ciphers.h>
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#include "../testutils/MockConsole.h"
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#include <cpp-utils/io/NoninteractiveConsole.h>
#include <gitversion/gitversion.h>
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using namespace cryfs;
using boost::optional;
using boost::none;
using cpputils::Console;
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using cpputils::NoninteractiveConsole;
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using cpputils::unique_ref;
using cpputils::make_unique_ref;
using std::string;
using std::vector;
using std::shared_ptr;
using std::make_shared;
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using ::testing::_;
using ::testing::Return;
using ::testing::Invoke;
using ::testing::ValuesIn;
using ::testing::HasSubstr;
using ::testing::UnorderedElementsAreArray;
using ::testing::WithParamInterface;
#define EXPECT_ASK_TO_USE_DEFAULT_SETTINGS() \
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EXPECT_CALL(*console, askYesNo("Use default settings?", true)).Times(1)
#define EXPECT_DOES_NOT_ASK_TO_USE_DEFAULT_SETTINGS() \
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EXPECT_CALL(*console, askYesNo("Use default settings?", true)).Times(0)
#define EXPECT_ASK_FOR_CIPHER() \
EXPECT_CALL(*console, ask(HasSubstr("block cipher"), UnorderedElementsAreArray(CryCiphers::supportedCipherNames()))).Times(1)
#define EXPECT_DOES_NOT_ASK_FOR_CIPHER() \
EXPECT_CALL(*console, ask(HasSubstr("block cipher"), _)).Times(0)
#define EXPECT_ASK_FOR_BLOCKSIZE() \
EXPECT_CALL(*console, ask(HasSubstr("block size"), _)).Times(1)
#define EXPECT_DOES_NOT_ASK_FOR_BLOCKSIZE() \
EXPECT_CALL(*console, ask(HasSubstr("block size"), _)).Times(0)
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class CryConfigCreatorTest: public ::testing::Test {
public:
CryConfigCreatorTest()
: console(make_shared<MockConsole>()),
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creator(console, cpputils::Random::PseudoRandom()),
noninteractiveCreator(make_shared<NoninteractiveConsole>(console), cpputils::Random::PseudoRandom()) {
EXPECT_CALL(*console, ask(HasSubstr("block cipher"), _)).WillRepeatedly(ChooseAnyCipher());
EXPECT_CALL(*console, ask(HasSubstr("block size"), _)).WillRepeatedly(Return(0));
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}
shared_ptr<MockConsole> console;
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CryConfigCreator creator;
CryConfigCreator noninteractiveCreator;
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void AnswerNoToDefaultSettings() {
EXPECT_ASK_TO_USE_DEFAULT_SETTINGS().WillOnce(Return(false));
}
void AnswerYesToDefaultSettings() {
EXPECT_ASK_TO_USE_DEFAULT_SETTINGS().WillOnce(Return(true));
}
};
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TEST_F(CryConfigCreatorTest, DoesAskForCipherIfNotSpecified) {
AnswerNoToDefaultSettings();
EXPECT_ASK_FOR_CIPHER().WillOnce(ChooseAnyCipher());
CryConfig config = creator.create(none, none);
}
TEST_F(CryConfigCreatorTest, DoesNotAskForCipherIfSpecified) {
AnswerNoToDefaultSettings();
EXPECT_DOES_NOT_ASK_FOR_CIPHER();
CryConfig config = creator.create(string("aes-256-gcm"), none);
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}
TEST_F(CryConfigCreatorTest, DoesNotAskForCipherIfUsingDefaultSettings) {
AnswerYesToDefaultSettings();
EXPECT_DOES_NOT_ASK_FOR_CIPHER();
CryConfig config = creator.create(none, none);
}
TEST_F(CryConfigCreatorTest, DoesNotAskForCipherIfNoninteractive) {
EXPECT_DOES_NOT_ASK_TO_USE_DEFAULT_SETTINGS();
EXPECT_DOES_NOT_ASK_FOR_CIPHER();
CryConfig config = noninteractiveCreator.create(none, none);
}
TEST_F(CryConfigCreatorTest, DoesAskForBlocksizeIfNotSpecified) {
AnswerNoToDefaultSettings();
EXPECT_ASK_FOR_BLOCKSIZE().WillOnce(Return(1));
CryConfig config = creator.create(none, none);
}
TEST_F(CryConfigCreatorTest, DoesNotAskForBlocksizeIfSpecified) {
AnswerNoToDefaultSettings();
EXPECT_DOES_NOT_ASK_FOR_BLOCKSIZE();
CryConfig config = creator.create(none, 10*1024u);
}
TEST_F(CryConfigCreatorTest, DoesNotAskForBlocksizeIfNoninteractive) {
EXPECT_DOES_NOT_ASK_TO_USE_DEFAULT_SETTINGS();
EXPECT_DOES_NOT_ASK_FOR_BLOCKSIZE();
CryConfig config = noninteractiveCreator.create(none, none);
}
TEST_F(CryConfigCreatorTest, DoesNotAskForBlocksizeIfUsingDefaultSettings) {
AnswerYesToDefaultSettings();
EXPECT_DOES_NOT_ASK_FOR_BLOCKSIZE();
CryConfig config = creator.create(none, none);
}
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TEST_F(CryConfigCreatorTest, ChoosesEmptyRootBlobId) {
AnswerNoToDefaultSettings();
CryConfig config = creator.create(none, none);
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EXPECT_EQ("", config.RootBlob()); // This tells CryFS to create a new root blob
}
#if CRYPTOPP_VERSION != 564
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TEST_F(CryConfigCreatorTest, ChoosesValidEncryptionKey_448) {
AnswerNoToDefaultSettings();
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EXPECT_ASK_FOR_CIPHER().WillOnce(ChooseCipher("mars-448-gcm"));
CryConfig config = creator.create(none, none);
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cpputils::Mars448_GCM::EncryptionKey::FromString(config.EncryptionKey()); // This crashes if invalid
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}
#endif
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TEST_F(CryConfigCreatorTest, ChoosesValidEncryptionKey_256) {
AnswerNoToDefaultSettings();
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EXPECT_ASK_FOR_CIPHER().WillOnce(ChooseCipher("aes-256-gcm"));
CryConfig config = creator.create(none, none);
cpputils::AES256_GCM::EncryptionKey::FromString(config.EncryptionKey()); // This crashes if invalid
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}
TEST_F(CryConfigCreatorTest, ChoosesValidEncryptionKey_128) {
AnswerNoToDefaultSettings();
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EXPECT_ASK_FOR_CIPHER().WillOnce(ChooseCipher("aes-128-gcm"));
CryConfig config = creator.create(none, none);
cpputils::AES128_GCM::EncryptionKey::FromString(config.EncryptionKey()); // This crashes if invalid
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}
TEST_F(CryConfigCreatorTest, DoesNotAskForAnythingIfEverythingIsSpecified) {
EXPECT_DOES_NOT_ASK_TO_USE_DEFAULT_SETTINGS();
EXPECT_DOES_NOT_ASK_FOR_CIPHER();
CryConfig config = noninteractiveCreator.create(string("aes-256-gcm"), 10*1024u);
}
TEST_F(CryConfigCreatorTest, SetsCorrectCreatedWithVersion) {
CryConfig config = noninteractiveCreator.create(none, none);
EXPECT_EQ(gitversion::VersionString(), config.CreatedWithVersion());
}
TEST_F(CryConfigCreatorTest, SetsCorrectVersion) {
CryConfig config = noninteractiveCreator.create(none, none);
EXPECT_EQ(gitversion::VersionString(), config.Version());
}
//TODO Add test cases ensuring that the values entered are correctly taken