package platform_test import ( "errors" "io/fs" "os" "path/filepath" "runtime" "testing" "github.com/v2fly/v2ray-core/v4/common" . "github.com/v2fly/v2ray-core/v4/common/platform" ) func TestNormalizeEnvName(t *testing.T) { cases := []struct { input string output string }{ { input: "a", output: "A", }, { input: "a.a", output: "A_A", }, { input: "A.A.B", output: "A_A_B", }, } for _, test := range cases { if v := NormalizeEnvName(test.input); v != test.output { t.Error("unexpected output: ", v, " want ", test.output) } } } func TestEnvFlag(t *testing.T) { if v := (EnvFlag{ Name: "xxxxx.y", }.GetValueAsInt(10)); v != 10 { t.Error("env value: ", v) } } // TestWrongErrorCheckOnOSStat is a test to detect the misuse of error handling // in os.Stat, which will lead to failure to find & read geoip & geosite files. func TestWrongErrorCheckOnOSStat(t *testing.T) { theExpectedDir := filepath.Join("usr", "local", "share", "v2ray") getAssetLocation := func(file string) string { for _, p := range []string{ filepath.Join(theExpectedDir, file), } { // errors.Is(fs.ErrNotExist, err) is a mistake supposed Not to // be discovered by the Go runtime, which will lead to failure to // find & read geoip & geosite files. // The correct code is `errors.Is(err, fs.ErrNotExist)` if _, err := os.Stat(p); err != nil && errors.Is(fs.ErrNotExist, err) { continue } // asset found return p } return filepath.Join("the", "wrong", "path", "not-exist.txt") } notExist := getAssetLocation("not-exist.txt") if filepath.Dir(notExist) != theExpectedDir { t.Error("asset dir:", notExist, "not in", theExpectedDir) } } func TestGetAssetLocation(t *testing.T) { exec, err := os.Executable() common.Must(err) loc := GetAssetLocation("t") if filepath.Dir(loc) != filepath.Dir(exec) { t.Error("asset dir: ", loc, " not in ", exec) } os.Setenv("v2ray.location.asset", "/v2ray") if runtime.GOOS == "windows" { if v := GetAssetLocation("t"); v != "\\v2ray\\t" { t.Error("asset loc: ", v) } } else { if v := GetAssetLocation("t"); v != "/v2ray/t" { t.Error("asset loc: ", v) } } }