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test_sqlquery.py
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test_sqlquery.py
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# coding=utf-8
import pytest
from mock import MagicMock, call
import pandas as pd
from pandas.testing import assert_frame_equal
import sparkmagic.utils.configuration as conf
from sparkmagic.utils.constants import LONG_RANDOM_VARIABLE_NAME, MIMETYPE_TEXT_PLAIN
from sparkmagic.livyclientlib.sqlquery import SQLQuery
from sparkmagic.livyclientlib.command import Command
from sparkmagic.livyclientlib.exceptions import BadUserDataException
def test_to_command_pyspark():
variable_name = "var_name"
sqlquery = SQLQuery("Query")
sqlquery._pyspark_command = MagicMock(return_value=MagicMock())
sqlquery.to_command("pyspark", variable_name)
sqlquery._pyspark_command.assert_called_with(variable_name)
def test_sqlquery_initializes():
query = "HERE IS MY SQL QUERY SELECT * FROM CREATE DROP TABLE"
samplemethod = "take"
maxrows = 120
samplefraction = 0.6
sqlquery = SQLQuery(query, samplemethod, maxrows, samplefraction)
assert sqlquery.query == query
assert sqlquery.samplemethod == samplemethod
assert sqlquery.maxrows == maxrows
assert sqlquery.samplefraction == samplefraction
def test_sqlquery_loads_defaults():
defaults = {
conf.default_samplemethod.__name__: "sample",
conf.default_maxrows.__name__: 419,
conf.default_samplefraction.__name__: 0.99,
}
conf.override_all(defaults)
query = "DROP TABLE USERS;"
sqlquery = SQLQuery(query)
assert sqlquery.query == query
assert sqlquery.samplemethod == defaults[conf.default_samplemethod.__name__]
assert sqlquery.maxrows == defaults[conf.default_maxrows.__name__]
assert sqlquery.samplefraction == defaults[conf.default_samplefraction.__name__]
def test_sqlquery_rejects_bad_data():
with pytest.raises(BadUserDataException):
query = "HERE IS MY SQL QUERY SELECT * FROM CREATE DROP TABLE"
samplemethod = "foo"
_ = SQLQuery(query, samplemethod)
def test_pyspark_livy_sql_options():
query = "abc"
sqlquery = SQLQuery(query, samplemethod="take", maxrows=120)
assert sqlquery._pyspark_command("sqlContext") == Command(
'import sys\nfor {} in sqlContext.sql(u"""{} """).toJSON(use_unicode=(sys.version_info.major > 2)).take(120): print({})'.format(
LONG_RANDOM_VARIABLE_NAME, query, LONG_RANDOM_VARIABLE_NAME
)
)
sqlquery = SQLQuery(query, samplemethod="take", maxrows=-1)
assert sqlquery._pyspark_command("sqlContext") == Command(
'import sys\nfor {} in sqlContext.sql(u"""{} """).toJSON(use_unicode=(sys.version_info.major > 2)).collect(): print({})'.format(
LONG_RANDOM_VARIABLE_NAME, query, LONG_RANDOM_VARIABLE_NAME
)
)
sqlquery = SQLQuery(query, samplemethod="sample", samplefraction=0.25, maxrows=-1)
assert sqlquery._pyspark_command("sqlContext") == Command(
'import sys\nfor {} in sqlContext.sql(u"""{} """).toJSON(use_unicode=(sys.version_info.major > 2)).sample(False, 0.25).collect(): '
"print({})".format(LONG_RANDOM_VARIABLE_NAME, query, LONG_RANDOM_VARIABLE_NAME)
)
sqlquery = SQLQuery(query, samplemethod="sample", samplefraction=0.33, maxrows=3234)
assert sqlquery._pyspark_command("sqlContext") == Command(
'import sys\nfor {} in sqlContext.sql(u"""{} """).toJSON(use_unicode=(sys.version_info.major > 2)).sample(False, 0.33).take(3234): '
"print({})".format(LONG_RANDOM_VARIABLE_NAME, query, LONG_RANDOM_VARIABLE_NAME)
)
sqlquery = SQLQuery(query, samplemethod="sample", samplefraction=0.33, maxrows=3234)
assert sqlquery._pyspark_command("spark") == Command(
'import sys\nfor {} in spark.sql(u"""{} """).toJSON(use_unicode=(sys.version_info.major > 2)).sample(False, 0.33).take(3234): '
"print({})".format(LONG_RANDOM_VARIABLE_NAME, query, LONG_RANDOM_VARIABLE_NAME)
)
def test_scala_livy_sql_options():
query = "abc"
sqlquery = SQLQuery(query, samplemethod="take", maxrows=100)
assert sqlquery._scala_command("sqlContext") == Command(
'sqlContext.sql("""{}""").toJSON.take(100).foreach(println)'.format(query)
)
sqlquery = SQLQuery(query, samplemethod="take", maxrows=-1)
assert sqlquery._scala_command("sqlContext") == Command(
'sqlContext.sql("""{}""").toJSON.collect.foreach(println)'.format(query)
)
sqlquery = SQLQuery(query, samplemethod="sample", samplefraction=0.25, maxrows=-1)
assert sqlquery._scala_command("sqlContext") == Command(
'sqlContext.sql("""{}""").toJSON.sample(false, 0.25).collect.foreach(println)'.format(
query
)
)
sqlquery = SQLQuery(query, samplemethod="sample", samplefraction=0.33, maxrows=3234)
assert sqlquery._scala_command("sqlContext") == Command(
'sqlContext.sql("""{}""").toJSON.sample(false, 0.33).take(3234).foreach(println)'.format(
query
)
)
def test_r_livy_sql_options_spark():
query = "abc"
sqlquery = SQLQuery(query, samplemethod="take", maxrows=100)
sqlContext = "sqlContext"
assert sqlquery._r_command(sqlContext) == Command(
'for ({} in (jsonlite:::toJSON(take(sql({}, "{}"),100)))) {{cat({})}}'.format(
LONG_RANDOM_VARIABLE_NAME, sqlContext, query, LONG_RANDOM_VARIABLE_NAME
)
)
sqlquery = SQLQuery(query, samplemethod="take", maxrows=-1)
assert sqlquery._r_command(sqlContext) == Command(
'for ({} in (jsonlite:::toJSON(collect(sql({}, "{}"))))) {{cat({})}}'.format(
LONG_RANDOM_VARIABLE_NAME, sqlContext, query, LONG_RANDOM_VARIABLE_NAME
)
)
sqlquery = SQLQuery(query, samplemethod="sample", samplefraction=0.25, maxrows=-1)
assert sqlquery._r_command(sqlContext) == Command(
'for ({} in (jsonlite:::toJSON(collect(sample(sql({}, "{}"), FALSE, 0.25))))) {{cat({})}}'.format(
LONG_RANDOM_VARIABLE_NAME, sqlContext, query, LONG_RANDOM_VARIABLE_NAME
)
)
sqlquery = SQLQuery(query, samplemethod="sample", samplefraction=0.33, maxrows=3234)
assert sqlquery._r_command(sqlContext) == Command(
'for ({} in (jsonlite:::toJSON(take(sample(sql({}, "{}"), FALSE, 0.33),3234)))) {{cat({})}}'.format(
LONG_RANDOM_VARIABLE_NAME, sqlContext, query, LONG_RANDOM_VARIABLE_NAME
)
)
def test_execute_sql():
spark_events = MagicMock()
sqlquery = SQLQuery(
"HERE IS THE QUERY", "take", 100, 0.2, spark_events=spark_events
)
sqlquery.to_command = MagicMock(return_value=MagicMock())
result = """{"z":100, "nullv":null, "y":50}
{"z":25, "nullv":null, "y":10}"""
sqlquery.to_command.return_value.execute = MagicMock(
return_value=(True, result, MIMETYPE_TEXT_PLAIN)
)
result_data = pd.DataFrame(
[{"z": 100, "nullv": None, "y": 50}, {"z": 25, "nullv": None, "y": 10}],
columns=["z", "nullv", "y"],
)
session = MagicMock()
session.kind = "pyspark"
result = sqlquery.execute(session)
assert_frame_equal(result, result_data)
sqlquery.to_command.return_value.execute.assert_called_once_with(session)
spark_events.emit_sql_execution_start_event.assert_called_once_with(
session.guid, session.kind, session.id, sqlquery.guid, "take", 100, 0.2
)
spark_events.emit_sql_execution_end_event.assert_called_once_with(
session.guid,
session.kind,
session.id,
sqlquery.guid,
sqlquery.to_command.return_value.guid,
True,
"",
"",
)
def test_execute_sql_no_results():
global executed_once
executed_once = False
spark_events = MagicMock()
sqlquery = SQLQuery("SHOW TABLES", "take", maxrows=-1, spark_events=spark_events)
sqlquery.to_command = MagicMock()
sqlquery.to_only_columns_query = MagicMock()
result1 = ""
result_data = pd.DataFrame([])
session = MagicMock()
sqlquery.to_command.return_value.execute.return_value = (
True,
result1,
MIMETYPE_TEXT_PLAIN,
)
session.kind = "spark"
result = sqlquery.execute(session)
assert_frame_equal(result, result_data)
sqlquery.to_command.return_value.execute.assert_called_once_with(session)
spark_events.emit_sql_execution_start_event.assert_called_once_with(
session.guid,
session.kind,
session.id,
sqlquery.guid,
sqlquery.samplemethod,
sqlquery.maxrows,
sqlquery.samplefraction,
)
spark_events.emit_sql_execution_end_event.assert_called_once_with(
session.guid,
session.kind,
session.id,
sqlquery.guid,
sqlquery.to_command.return_value.guid,
True,
"",
"",
)
def test_execute_sql_failure_emits_event():
spark_events = MagicMock()
sqlquery = SQLQuery("HERE IS THE QUERY", "take", 100, 0.2, spark_events)
sqlquery.to_command = MagicMock()
sqlquery.to_command.return_value.execute = MagicMock(side_effect=ValueError("yo"))
session = MagicMock()
session.kind = "pyspark"
try:
result = sqlquery.execute(session)
assert False
except ValueError:
sqlquery.to_command.return_value.execute.assert_called_once_with(session)
spark_events.emit_sql_execution_end_event.assert_called_once_with(
session.guid,
session.kind,
session.id,
sqlquery.guid,
sqlquery.to_command.return_value.guid,
False,
"ValueError",
"yo",
)
def test_unicode_sql():
query = "SELECT 'è'"
longvar = LONG_RANDOM_VARIABLE_NAME
sqlquery = SQLQuery(query, samplemethod="take", maxrows=120)
assert sqlquery._pyspark_command("spark") == Command(
'import sys\nfor {} in spark.sql(u"""{} """).toJSON(use_unicode=(sys.version_info.major > 2)).take(120): print({})'.format(
longvar, query, longvar
)
)
assert sqlquery._scala_command("spark") == Command(
'spark.sql("""{}""").toJSON.take(120).foreach(println)'.format(query)
)
assert sqlquery._r_command("spark") == Command(
'for ({} in (jsonlite:::toJSON(take(sql("{}"),120)))) {{cat({})}}'.format(
longvar, query, longvar
)
)
def test_pyspark_livy_sql_options_spark2():
query = "abc"
sqlquery = SQLQuery(query, samplemethod="take", maxrows=120)
assert sqlquery._pyspark_command("spark") == Command(
'import sys\nfor {} in spark.sql(u"""{} """).toJSON(use_unicode=(sys.version_info.major > 2)).take(120): print({})'.format(
LONG_RANDOM_VARIABLE_NAME, query, LONG_RANDOM_VARIABLE_NAME
)
)
sqlquery = SQLQuery(query, samplemethod="take", maxrows=-1)
assert sqlquery._pyspark_command("spark") == Command(
'import sys\nfor {} in spark.sql(u"""{} """).toJSON(use_unicode=(sys.version_info.major > 2)).collect(): print({})'.format(
LONG_RANDOM_VARIABLE_NAME, query, LONG_RANDOM_VARIABLE_NAME
)
)
sqlquery = SQLQuery(query, samplemethod="sample", samplefraction=0.25, maxrows=-1)
assert sqlquery._pyspark_command("spark") == Command(
'import sys\nfor {} in spark.sql(u"""{} """).toJSON(use_unicode=(sys.version_info.major > 2)).sample(False, 0.25).collect(): '
"print({})".format(LONG_RANDOM_VARIABLE_NAME, query, LONG_RANDOM_VARIABLE_NAME)
)
sqlquery = SQLQuery(query, samplemethod="sample", samplefraction=0.33, maxrows=3234)
assert sqlquery._pyspark_command("spark") == Command(
'import sys\nfor {} in spark.sql(u"""{} """).toJSON(use_unicode=(sys.version_info.major > 2)).sample(False, 0.33).take(3234): '
"print({})".format(LONG_RANDOM_VARIABLE_NAME, query, LONG_RANDOM_VARIABLE_NAME)
)
def test_scala_livy_sql_options_spark2():
query = "abc"
sqlquery = SQLQuery(query, samplemethod="take", maxrows=100)
assert sqlquery._scala_command("spark") == Command(
'spark.sql("""{}""").toJSON.take(100).foreach(println)'.format(query)
)
sqlquery = SQLQuery(query, samplemethod="take", maxrows=-1)
assert sqlquery._scala_command("spark") == Command(
'spark.sql("""{}""").toJSON.collect.foreach(println)'.format(query)
)
sqlquery = SQLQuery(query, samplemethod="sample", samplefraction=0.25, maxrows=-1)
assert sqlquery._scala_command("spark") == Command(
'spark.sql("""{}""").toJSON.sample(false, 0.25).collect.foreach(println)'.format(
query
)
)
sqlquery = SQLQuery(query, samplemethod="sample", samplefraction=0.33, maxrows=3234)
assert sqlquery._scala_command("spark") == Command(
'spark.sql("""{}""").toJSON.sample(false, 0.33).take(3234).foreach(println)'.format(
query
)
)
def test_r_livy_sql_options_spark2():
query = "abc"
sqlquery = SQLQuery(query, samplemethod="take", maxrows=100)
assert sqlquery._r_command("spark") == Command(
'for ({} in (jsonlite:::toJSON(take(sql("{}"),100)))) {{cat({})}}'.format(
LONG_RANDOM_VARIABLE_NAME, query, LONG_RANDOM_VARIABLE_NAME
)
)
sqlquery = SQLQuery(query, samplemethod="take", maxrows=-1)
assert sqlquery._r_command("spark") == Command(
'for ({} in (jsonlite:::toJSON(collect(sql("{}"))))) {{cat({})}}'.format(
LONG_RANDOM_VARIABLE_NAME, query, LONG_RANDOM_VARIABLE_NAME
)
)
sqlquery = SQLQuery(query, samplemethod="sample", samplefraction=0.25, maxrows=-1)
assert sqlquery._r_command("spark") == Command(
'for ({} in (jsonlite:::toJSON(collect(sample(sql("{}"), FALSE, 0.25))))) {{cat({})}}'.format(
LONG_RANDOM_VARIABLE_NAME, query, LONG_RANDOM_VARIABLE_NAME
)
)
sqlquery = SQLQuery(query, samplemethod="sample", samplefraction=0.33, maxrows=3234)
assert sqlquery._r_command("spark") == Command(
'for ({} in (jsonlite:::toJSON(take(sample(sql("{}"), FALSE, 0.33),3234)))) {{cat({})}}'.format(
LONG_RANDOM_VARIABLE_NAME, query, LONG_RANDOM_VARIABLE_NAME
)
)