TestLogFile/SetLogFile fails: open ~/.minikube/logs/audit.json: no such file or directory

[prezha]

if ~/.minikube folder structure does not exist (incl. after minikube delete --all --purge), the test will fail:

--- FAIL: TestLogFile (0.00s)
    --- FAIL: TestLogFile/SetLogFile (0.00s)
        logFile_test.go:30: unable to open /home/prezha/.minikube/logs/audit.json: open /home/prezha/.minikube/logs/audit.json: no such file or directory
    --- FAIL: TestLogFile/AppendToLog (0.00s)
panic: runtime error: invalid memory address or nil pointer dereference [recovered]
        panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0xbec6fd]

goroutine 33 [running]:
testing.tRunner.func1.2(0xcb2d20, 0x13ec100)
        /usr/local/go/src/testing/testing.go:1144 +0x332
testing.tRunner.func1(0xc000583380)
        /usr/local/go/src/testing/testing.go:1147 +0x4b6
panic(0xcb2d20, 0x13ec100)
        /usr/local/go/src/runtime/panic.go:965 +0x1b9
k8s.io/minikube/pkg/minikube/audit.TestLogFile.func2(0xc000583380)
        /home/prezha/dev/k8s/minikube/github.com/prezha/minikube/pkg/minikube/audit/logFile_test.go:41 +0x15d
testing.tRunner(0xc000583380, 0xe2db30)
        /usr/local/go/src/testing/testing.go:1194 +0xef
created by testing.(*T).Run
        /usr/local/go/src/testing/testing.go:1239 +0x2b3
FAIL    k8s.io/minikube/pkg/minikube/audit      0.051s

[prezha]

/assign