cleanup: getRootDir function

Author: andyzhangx

pkg/nfs/utils.go

@@ -217,12 +217,6 @@ func waitForPathNotExistWithTimeout(path string, timeout time.Duration) error {
 	}
 }
 
-// getRootDir returns the root directory of the given directory
-func getRootDir(path string) string {
-	parts := strings.Split(path, "/")
-	return parts[0]
-}
-
 // removeEmptyDirs removes empty directories in the given directory dir until the parent directory parentDir
 // It will remove all empty directories in the path from the given directory to the parent directory
 // It will not remove the parent directory parentDir

pkg/nfs/utils_test.go

@@ -388,47 +388,6 @@ func TestWaitForPathNotExistWithTimeout(t *testing.T) {
 	}
 }
 
-func TestGetRootPath(t *testing.T) {
-	tests := []struct {
-		desc     string
-		dir      string
-		expected string
-	}{
-		{
-			desc:     "empty path",
-			dir:      "",
-			expected: "",
-		},
-		{
-			desc:     "root path",
-			dir:      "/",
-			expected: "",
-		},
-		{
-			desc:     "subdir path",
-			dir:      "/subdir",
-			expected: "",
-		},
-		{
-			desc:     "subdir path without leading slash",
-			dir:      "subdir",
-			expected: "subdir",
-		},
-		{
-			desc:     "multiple subdir path without leading slash",
-			dir:      "subdir/subdir2",
-			expected: "subdir",
-		},
-	}
-
-	for _, test := range tests {
-		result := getRootDir(test.dir)
-		if result != test.expected {
-			t.Errorf("Unexpected result: %s, expected: %s", result, test.expected)
-		}
-	}
-}
-
 func TestRemoveEmptyDirs(t *testing.T) {
 	parentDir, _ := os.Getwd()
 	emptyDirOneLevel, _ := getWorkDirPath("emptyDir1")