Files
mcp-server/tests/unit/test_spark_submit.py
T

87 lines
2.7 KiB
Python

# coding=utf-8
from unittest.mock import MagicMock, patch
import pytest
from spark_executor.core.spark_submit import (
SparkSubmitError,
build_spark_submit_command,
run_spark_submit,
)
def test_build_command_uses_provided_master_and_deploy_mode():
cmd = build_spark_submit_command(
master="yarn",
deploy_mode="cluster",
script_path="/tmp/jobs/job_001.py",
queue="default",
executor_memory="4G",
executor_cores=2,
num_executors=2,
)
assert cmd[:2] == ["spark-submit", "--master"]
assert "yarn" in cmd
assert "cluster" in cmd
assert "--queue" in cmd and "default" in cmd
assert "--executor-memory" in cmd and "4G" in cmd
assert "--executor-cores" in cmd and "2" in cmd
assert "--num-executors" in cmd and "2" in cmd
assert cmd[-1] == "/tmp/jobs/job_001.py"
def test_build_command_supports_standalone_master():
cmd = build_spark_submit_command(
master="spark://master:7077",
deploy_mode="client",
script_path="/tmp/j.py",
queue="default",
executor_memory="1G",
executor_cores=1,
num_executors=1,
)
assert "spark://master:7077" in cmd
assert "client" in cmd
def test_build_command_appends_spark_conf_entries():
cmd = build_spark_submit_command(
master="yarn",
deploy_mode="cluster",
script_path="/tmp/j.py",
queue="default",
executor_memory="4G",
executor_cores=2,
num_executors=2,
spark_conf={"spark.sql.shuffle.partitions": "200", "spark.executor.memoryOverhead": "1G"},
)
# every k=v is emitted as --conf k=v
assert "--conf" in cmd
assert "spark.sql.shuffle.partitions=200" in cmd
assert "spark.executor.memoryOverhead=1G" in cmd
# script_path is still last
assert cmd[-1] == "/tmp/j.py"
def test_run_spark_submit_returns_completed_process(monkeypatch):
fake = MagicMock()
fake.returncode = 0
fake.stderr = "Submitted application application_1\n"
with patch("spark_executor.core.spark_submit.subprocess.run", return_value=fake) as m:
result = run_spark_submit(["spark-submit", "/tmp/x.py"])
assert result is fake
m.assert_called_once()
# capture_output=True and text=True must be set
kwargs = m.call_args.kwargs
assert kwargs["capture_output"] is True
assert kwargs["text"] is True
def test_run_spark_submit_raises_on_nonzero_return():
fake = MagicMock()
fake.returncode = 1
fake.stderr = "boom"
with patch("spark_executor.core.spark_submit.subprocess.run", return_value=fake):
with pytest.raises(SparkSubmitError, match="spark-submit failed"):
run_spark_submit(["spark-submit", "/tmp/x.py"])