copernicus_test_open: Test opening of Copernicus dataset
Description
Performs a test dataset opening to validate that the open_dataset function works.
Uses stored credentials if available.
Usage
copernicus_test_open(username = NULL, password = NULL)
Value
TRUE if the test was successful.
Arguments
- username
Copernicus Marine username (optional, will try to get from stored credentials first).
- password
Copernicus Marine password (optional, will try to get from stored credentials first).