Which function do you want to add comments to? TestAlluxioFileUtils_IsMounted in pkg/ddc/alluxio/operations/base_test.go.
What comments do you want to add?
// TestAlluxioFileUtils_IsMounted tests the IsMounted method of AlluxioFileUtils.
// It verifies the method's ability to correctly determine whether a given Alluxio
// path is mounted by parsing the output of the underlying alluxio fs mount command.
//
// Test cases:
// - ExecErr: Tests handling of command execution errors, ensuring an error is
// returned when the exec command fails.
// - /spark: Tests a non-existent mount path, expecting false.
// - /hbase: Tests an existing mount path, expecting true.