# Copyright 2022-2025 The Ramble Authors
#
# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
# https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
# <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
# option. This file may not be copied, modified, or distributed
# except according to those terms.
import os
import pytest
import ramble.config
import ramble.software_environments
import ramble.workspace
from ramble.main import RambleCommand
# everything here uses the mock_workspace_path
pytestmark = pytest.mark.usefixtures(
"mutable_config",
"mutable_mock_workspace_path",
)
workspace = RambleCommand("workspace")
[docs]
def test_missing_mpi_cmd():
test_config = """
ramble:
variants:
package_manager: None
variables:
mpi_command: ''
batch_submit: 'batch_submit {execute_experiment}'
processes_per_node: '1'
hostlist: 'foo'
applications:
gromacs:
workloads:
water_bare:
experiments:
multi-node-test:
variables:
n_ranks: '3'
single-node-test:
variables:
n_nodes: '1'
"""
workspace_name = "test-missing-mpi-cmd"
ws = ramble.workspace.create(workspace_name)
ws.write()
config_path = os.path.join(ws.config_dir, ramble.workspace.config_file_name)
with open(config_path, "w+") as f:
f.write(test_config)
ws._re_read()
workspace("setup", "--dry-run", global_args=["-w", workspace_name])
single_setup_out = os.path.join(
ws.log_dir, "setup.latest", "gromacs.water_bare.single-node-test.out"
)
with open(single_setup_out) as f:
content = f.read()
assert "Warning:" not in content
multi_setup_out = os.path.join(
ws.log_dir, "setup.latest", "gromacs.water_bare.multi-node-test.out"
)
with open(multi_setup_out) as f:
content = f.read()
assert "Warning:" in content
assert "requires a non-empty `mpi_command` variable" in content