Merge #11210: Stop test_bitcoin-qt touching ~/.bitcoin

dea086f49 Stop test_bitcoin-qt touching ~/.bitcoin (MeshCollider)

Pull request description:

  Fixes https://github.com/bitcoin/bitcoin/issues/11192

  The directory remains unused, but this stops the tests touching ~/.bitcoin at all (namely creating it if it doesn't exist)

Tree-SHA512: e59ad6b83dbc5ea2fb2761994c09933721d29668b0eef09b9d938a4ee1c67871c5125c57483ee0ea25f2385e308d275d86bcb9087dd4d502923013b4f3dbac82

src/qt/test/rpcnestedtests.cpp

@@ -36,11 +36,6 @@ void RPCNestedTests::rpcNestedTests()
     // do some test setup
     // could be moved to a more generic place when we add more tests on QT level
     tableRPC.appendCommand("rpcNestedTest", &vRPCCommands[0]);
-    ClearDatadirCache();
-    std::string path = QDir::tempPath().toStdString() + "/" + strprintf("test_bitcoin_qt_%lu_%i", (unsigned long)GetTime(), (int)(GetRand(100000)));
-    QDir dir(QString::fromStdString(path));
-    dir.mkpath(".");
-    gArgs.ForceSetArg("-datadir", path);
     //mempool.setSanityCheck(1.0);
 
     TestingSetup test;
@@ -135,6 +130,4 @@ void RPCNestedTests::rpcNestedTests()
     QVERIFY_EXCEPTION_THROWN(RPCConsole::RPCExecuteCommandLine(result, "rpcNestedTest(abc,,abc)"), std::runtime_error); //don't tollerate empty arguments when using ,
     QVERIFY_EXCEPTION_THROWN(RPCConsole::RPCExecuteCommandLine(result, "rpcNestedTest(abc,,)"), std::runtime_error); //don't tollerate empty arguments when using ,
 #endif
-
-    fs::remove_all(fs::path(path));
 }

src/qt/test/test_main.cpp

@@ -53,6 +53,10 @@ int main(int argc, char *argv[])
     SetupNetworking();
     SelectParams(CBaseChainParams::MAIN);
     noui_connect();
+    ClearDatadirCache();
+    fs::path pathTemp = fs::temp_directory_path() / strprintf("test_bitcoin-qt_%lu_%i", (unsigned long)GetTime(), (int)GetRand(100000));
+    fs::create_directories(pathTemp);
+    gArgs.ForceSetArg("-datadir", pathTemp.string());
 
     bool fInvalid = false;
 
@@ -97,5 +101,7 @@ int main(int argc, char *argv[])
     }
 #endif
 
+    fs::remove_all(pathTemp);
+
     return fInvalid;
 }