Don't pollute users local state dir when running test cases

src/cryfs/localstate/LocalStateDir.cpp

@@ -6,10 +6,8 @@ namespace bf = boost::filesystem;
 
 namespace cryfs {
     namespace {
-      // TODO constexpr?
-      bf::path& appDir() {
-        static bf::path singleton = cpputils::system::HomeDirectory::get() / ".cryfs";
-        return singleton;
+      bf::path appDir() {
+        return cpputils::system::HomeDirectory::get() / ".cryfs";
       }
     }
 
@@ -32,8 +30,4 @@ namespace cryfs {
             bf::create_directories(path);
         }
     }
-
-    void LocalStateDir::setAppDir(boost::filesystem::path path) {
-      appDir() = std::move(path);
-    }
 }

src/cryfs/localstate/LocalStateDir.h

@@ -13,10 +13,6 @@ namespace cryfs {
         static boost::filesystem::path forFilesystemId(const CryConfig::FilesystemID &filesystemId);
         static boost::filesystem::path forBasedirMetadata();
 
-        // Use this from test cases to not pollute local config
-        // TODO Make test cases call this
-        static void setAppDir(boost::filesystem::path path);
-
     private:
         LocalStateDir(); // static functions only
 

test/cryfs/config/CryConfigCreatorTest.cpp

@@ -4,6 +4,7 @@
 #include <cryfs/config/CryCipher.h>
 #include <cpp-utils/crypto/symmetric/ciphers.h>
 #include "../testutils/MockConsole.h"
+#include "../testutils/TestWithFakeHomeDirectory.h"
 #include <cpp-utils/io/NoninteractiveConsole.h>
 #include <gitversion/gitversion.h>
 
@@ -46,7 +47,7 @@ using ::testing::WithParamInterface;
 #define IGNORE_ASK_FOR_MISSINGBLOCKISINTEGRITYVIOLATION()                                                              \
   EXPECT_CALL(*console, askYesNo(HasSubstr("missing block"), false))
 
-class CryConfigCreatorTest: public ::testing::Test {
+class CryConfigCreatorTest: public ::testing::Test, TestWithFakeHomeDirectory {
 public:
     CryConfigCreatorTest()
             : console(make_shared<MockConsole>()),

test/cryfs/config/CryConfigLoaderTest.cpp

@@ -1,6 +1,7 @@
 #include <gtest/gtest.h>
 #include <cryfs/config/CryConfigLoader.h>
 #include "../testutils/MockConsole.h"
+#include "../testutils/TestWithFakeHomeDirectory.h"
 #include <cpp-utils/tempfile/TempFile.h>
 #include <cpp-utils/random/Random.h>
 #include <cpp-utils/crypto/symmetric/ciphers.h>
@@ -34,7 +35,7 @@ namespace boost {
 }
 #include <boost/optional/optional_io.hpp>
 
-class CryConfigLoaderTest: public ::testing::Test, public TestWithMockConsole {
+class CryConfigLoaderTest: public ::testing::Test, public TestWithMockConsole, TestWithFakeHomeDirectory {
 public:
     CryConfigLoaderTest(): file(false) {
         console = mockConsole();

test/cryfs/localstate/BasedirMetadataTest.cpp

@@ -4,6 +4,7 @@
 #include <cryfs/localstate/LocalStateDir.h>
 #include <cryfs/config/CryConfig.h>
 #include <cpp-utils/tempfile/TempDir.h>
+#include "../testutils/TestWithFakeHomeDirectory.h"
 
 using cpputils::TempDir;
 using cryfs::BasedirMetadata;
@@ -11,7 +12,7 @@ using std::ofstream;
 namespace bf = boost::filesystem;
 using FilesystemID = cryfs::CryConfig::FilesystemID ;
 
-class BasedirMetadataTest : public ::testing::Test {
+class BasedirMetadataTest : public ::testing::Test, TestWithFakeHomeDirectory {
 public:
     TempDir tempdir;
     bf::path basedir1;
@@ -26,8 +27,6 @@ public:
       , id1(FilesystemID::FromString("1491BB4932A389EE14BC7090AC772972"))
       , id2(FilesystemID::FromString("A1491BB493214BC7090C772972A389EE"))
   {
-    // Use temporary local state dir to not pollute local state
-    cryfs::LocalStateDir::setAppDir(tempdir.path() / "appdir");
     // Create basedirs so bf::canonical() works
     bf::create_directories(basedir1);
     bf::create_directories(basedir2);