613 lines
24 KiB
Python
613 lines
24 KiB
Python
# -*- coding: utf-8 -*-
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import nilmdb
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from nilmdb.utils.printf import *
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from nilmdb.utils import timestamper
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from nilmdb.client import ClientError, ServerError
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from nilmdb.utils import datetime_tz
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from nose.plugins.skip import SkipTest
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from nose.tools import *
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from nose.tools import assert_raises
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import itertools
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import distutils.version
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import os
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import sys
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import threading
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import cStringIO
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import simplejson as json
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import unittest
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import warnings
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import resource
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import time
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import re
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from testutil.helpers import *
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testdb = "tests/client-testdb"
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testurl = "http://localhost:32180/"
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def setup_module():
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global test_server, test_db
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# Clear out DB
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recursive_unlink(testdb)
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# Start web app on a custom port
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test_db = nilmdb.utils.serializer_proxy(nilmdb.NilmDB)(testdb, sync = False)
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test_server = nilmdb.Server(test_db, host = "127.0.0.1",
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port = 32180, stoppable = False,
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fast_shutdown = True,
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force_traceback = False)
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test_server.start(blocking = False)
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def teardown_module():
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global test_server, test_db
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# Close web app
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test_server.stop()
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test_db.close()
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class TestClient(object):
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def test_client_01_basic(self):
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# Test a fake host
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client = nilmdb.Client(url = "http://localhost:1/")
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with assert_raises(nilmdb.client.ServerError):
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client.version()
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client.close()
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# Trigger same error with a PUT request
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client = nilmdb.Client(url = "http://localhost:1/")
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with assert_raises(nilmdb.client.ServerError):
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client.version()
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client.close()
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# Then a fake URL on a real host
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client = nilmdb.Client(url = "http://localhost:32180/fake/")
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with assert_raises(nilmdb.client.ClientError):
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client.version()
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client.close()
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# Now a real URL with no http:// prefix
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client = nilmdb.Client(url = "localhost:32180")
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version = client.version()
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client.close()
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# Now use the real URL
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client = nilmdb.Client(url = testurl)
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version = client.version()
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eq_(distutils.version.LooseVersion(version),
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distutils.version.LooseVersion(test_server.version))
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# Bad URLs should give 404, not 500
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with assert_raises(ClientError):
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client.http.get("/stream/create")
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client.close()
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def test_client_02_createlist(self):
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# Basic stream tests, like those in test_nilmdb:test_stream
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client = nilmdb.Client(url = testurl)
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# Database starts empty
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eq_(client.stream_list(), [])
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# Bad path
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with assert_raises(ClientError):
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client.stream_create("foo/bar/baz", "PrepData")
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with assert_raises(ClientError):
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client.stream_create("/foo", "PrepData")
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# Bad layout type
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with assert_raises(ClientError):
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client.stream_create("/newton/prep", "NoSuchLayout")
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# Bad method types
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with assert_raises(ClientError):
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client.http.put("/stream/list","")
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# Try a bunch of times to make sure the request body is getting consumed
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for x in range(10):
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with assert_raises(ClientError):
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client.http.post("/stream/list")
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client = nilmdb.Client(url = testurl)
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# Create three streams
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client.stream_create("/newton/prep", "PrepData")
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client.stream_create("/newton/raw", "RawData")
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client.stream_create("/newton/zzz/rawnotch", "RawNotchedData")
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# Verify we got 3 streams
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eq_(client.stream_list(), [ ["/newton/prep", "PrepData"],
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["/newton/raw", "RawData"],
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["/newton/zzz/rawnotch", "RawNotchedData"]
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])
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# Match just one type or one path
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eq_(client.stream_list(layout="RawData"),
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[ ["/newton/raw", "RawData"] ])
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eq_(client.stream_list(path="/newton/raw"),
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[ ["/newton/raw", "RawData"] ])
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# Try messing with resource limits to trigger errors and get
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# more coverage. Here, make it so we can only create files 1
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# byte in size, which will trigger an IOError in the server when
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# we create a table.
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limit = resource.getrlimit(resource.RLIMIT_FSIZE)
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resource.setrlimit(resource.RLIMIT_FSIZE, (1, limit[1]))
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with assert_raises(ServerError) as e:
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client.stream_create("/newton/hello", "RawData")
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resource.setrlimit(resource.RLIMIT_FSIZE, limit)
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client.close()
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def test_client_03_metadata(self):
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client = nilmdb.Client(url = testurl)
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# Set / get metadata
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eq_(client.stream_get_metadata("/newton/prep"), {})
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eq_(client.stream_get_metadata("/newton/raw"), {})
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meta1 = { "description": "The Data",
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"v_scale": "1.234" }
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meta2 = { "description": "The Data" }
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meta3 = { "v_scale": "1.234" }
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client.stream_set_metadata("/newton/prep", meta1)
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client.stream_update_metadata("/newton/prep", {})
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client.stream_update_metadata("/newton/raw", meta2)
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client.stream_update_metadata("/newton/raw", meta3)
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eq_(client.stream_get_metadata("/newton/prep"), meta1)
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eq_(client.stream_get_metadata("/newton/raw"), meta1)
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eq_(client.stream_get_metadata("/newton/raw",
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[ "description" ] ), meta2)
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eq_(client.stream_get_metadata("/newton/raw",
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[ "description", "v_scale" ] ), meta1)
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# missing key
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eq_(client.stream_get_metadata("/newton/raw", "descr"),
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{ "descr": None })
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eq_(client.stream_get_metadata("/newton/raw", [ "descr" ]),
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{ "descr": None })
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# test wrong types (list instead of dict)
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with assert_raises(ClientError):
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client.stream_set_metadata("/newton/prep", [1,2,3])
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with assert_raises(ClientError):
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client.stream_update_metadata("/newton/prep", [1,2,3])
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client.close()
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def test_client_04_insert(self):
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client = nilmdb.Client(url = testurl)
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# Limit _max_data to 1 MB, since our test file is 1.5 MB
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old_max_data = nilmdb.client.client.StreamInserter._max_data
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nilmdb.client.client.StreamInserter._max_data = 1 * 1024 * 1024
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datetime_tz.localtz_set("America/New_York")
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testfile = "tests/data/prep-20120323T1000"
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start = datetime_tz.datetime_tz.smartparse("20120323T1000")
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start = start.totimestamp()
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rate = 120
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# First try a nonexistent path
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data = timestamper.TimestamperRate(testfile, start, 120)
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with assert_raises(ClientError) as e:
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result = client.stream_insert("/newton/no-such-path", data)
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in_("404 Not Found", str(e.exception))
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# Now try reversed timestamps
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data = timestamper.TimestamperRate(testfile, start, 120)
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data = reversed(list(data))
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with assert_raises(ClientError) as e:
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result = client.stream_insert("/newton/prep", data)
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in_("400 Bad Request", str(e.exception))
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in_("timestamp is not monotonically increasing", str(e.exception))
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# Now try empty data (no server request made)
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empty = cStringIO.StringIO("")
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data = timestamper.TimestamperRate(empty, start, 120)
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result = client.stream_insert("/newton/prep", data)
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eq_(result, None)
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# It's OK to insert an empty interval
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client.http.put("stream/insert", "", { "path": "/newton/prep",
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"start": 1, "end": 2 })
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eq_(list(client.stream_intervals("/newton/prep")), [[1, 2]])
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client.stream_remove("/newton/prep")
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eq_(list(client.stream_intervals("/newton/prep")), [])
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# Timestamps can be negative too
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client.http.put("stream/insert", "", { "path": "/newton/prep",
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"start": -2, "end": -1 })
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eq_(list(client.stream_intervals("/newton/prep")), [[-2, -1]])
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client.stream_remove("/newton/prep")
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eq_(list(client.stream_intervals("/newton/prep")), [])
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# Intervals that end at zero shouldn't be any different
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client.http.put("stream/insert", "", { "path": "/newton/prep",
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"start": -1, "end": 0 })
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eq_(list(client.stream_intervals("/newton/prep")), [[-1, 0]])
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client.stream_remove("/newton/prep")
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eq_(list(client.stream_intervals("/newton/prep")), [])
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# Try forcing a server request with equal start and end
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with assert_raises(ClientError) as e:
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client.http.put("stream/insert", "", { "path": "/newton/prep",
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"start": 0, "end": 0 })
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in_("400 Bad Request", str(e.exception))
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in_("start must precede end", str(e.exception))
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# Specify start/end (starts too late)
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data = timestamper.TimestamperRate(testfile, start, 120)
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with assert_raises(ClientError) as e:
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result = client.stream_insert("/newton/prep", data,
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start + 5, start + 120)
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in_("400 Bad Request", str(e.exception))
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in_("Data timestamp 1332511200.0 < start time 1332511205.0",
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str(e.exception))
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# Specify start/end (ends too early)
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data = timestamper.TimestamperRate(testfile, start, 120)
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with assert_raises(ClientError) as e:
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result = client.stream_insert("/newton/prep", data,
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start, start + 1)
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in_("400 Bad Request", str(e.exception))
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# Client chunks the input, so the exact timestamp here might change
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# if the chunk positions change.
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assert(re.search("Data timestamp 13325[0-9]+\.[0-9]+ "
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">= end time 1332511201.0", str(e.exception))
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is not None)
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# Now do the real load
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data = timestamper.TimestamperRate(testfile, start, 120)
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result = client.stream_insert("/newton/prep", data,
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start, start + 119.999777)
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# Verify the intervals. Should be just one, even if the data
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# was inserted in chunks, due to nilmdb interval concatenation.
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intervals = list(client.stream_intervals("/newton/prep"))
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eq_(intervals, [[start, start + 119.999777]])
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# Try some overlapping data -- just insert it again
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data = timestamper.TimestamperRate(testfile, start, 120)
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with assert_raises(ClientError) as e:
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result = client.stream_insert("/newton/prep", data)
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in_("400 Bad Request", str(e.exception))
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in_("verlap", str(e.exception))
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nilmdb.client.client.StreamInserter._max_data = old_max_data
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client.close()
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def test_client_05_extractremove(self):
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# Misc tests for extract and remove. Most of them are in test_cmdline.
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client = nilmdb.Client(url = testurl)
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for x in client.stream_extract("/newton/prep", 999123, 999124):
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raise AssertionError("shouldn't be any data for this request")
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with assert_raises(ClientError) as e:
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client.stream_remove("/newton/prep", 123, 120)
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# Test count
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eq_(client.stream_count("/newton/prep"), 14400)
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client.close()
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def test_client_06_generators(self):
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# A lot of the client functionality is already tested by test_cmdline,
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# but this gets a bit more coverage that cmdline misses.
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client = nilmdb.Client(url = testurl)
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# Trigger a client error in generator
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start = datetime_tz.datetime_tz.smartparse("20120323T2000")
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end = datetime_tz.datetime_tz.smartparse("20120323T1000")
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for function in [ client.stream_intervals, client.stream_extract ]:
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with assert_raises(ClientError) as e:
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function("/newton/prep",
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start.totimestamp(),
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end.totimestamp()).next()
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in_("400 Bad Request", str(e.exception))
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in_("start must precede end", str(e.exception))
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# Trigger a curl error in generator
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with assert_raises(ServerError) as e:
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client.http.get_gen("http://nosuchurl/").next()
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# Trigger a curl error in generator
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with assert_raises(ServerError) as e:
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client.http.get_gen("http://nosuchurl/").next()
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# Check 404 for missing streams
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for function in [ client.stream_intervals, client.stream_extract ]:
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with assert_raises(ClientError) as e:
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function("/no/such/stream").next()
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in_("404 Not Found", str(e.exception))
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in_("No such stream", str(e.exception))
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client.close()
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def test_client_07_headers(self):
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# Make sure that /stream/intervals and /stream/extract
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# properly return streaming, chunked, text/plain response.
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# Pokes around in client.http internals a bit to look at the
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# response headers.
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client = nilmdb.Client(url = testurl)
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http = client.http
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# Use a warning rather than returning a test failure for the
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# transfer-encoding, so that we can still disable chunked
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# responses for debugging.
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def headers():
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h = ""
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for (k, v) in http._last_response.headers.items():
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h += k + ": " + v + "\n"
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return h.lower()
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# Intervals
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x = http.get("stream/intervals", { "path": "/newton/prep" })
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if "transfer-encoding: chunked" not in headers():
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warnings.warn("Non-chunked HTTP response for /stream/intervals")
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if "content-type: application/x-json-stream" not in headers():
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raise AssertionError("/stream/intervals content type "
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"is not application/x-json-stream:\n" +
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headers())
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# Extract
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x = http.get("stream/extract",
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{ "path": "/newton/prep",
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"start": "123",
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"end": "124" })
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if "transfer-encoding: chunked" not in headers():
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warnings.warn("Non-chunked HTTP response for /stream/extract")
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if "content-type: text/plain;charset=utf-8" not in headers():
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raise AssertionError("/stream/extract is not text/plain:\n" +
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headers())
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# Make sure Access-Control-Allow-Origin gets set
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if "access-control-allow-origin: " not in headers():
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raise AssertionError("No Access-Control-Allow-Origin (CORS) "
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"header in /stream/extract response:\n" +
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headers())
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client.close()
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def test_client_08_unicode(self):
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# Basic Unicode tests
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client = nilmdb.Client(url = testurl)
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# Delete streams that exist
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for stream in client.stream_list():
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client.stream_destroy(stream[0])
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# Database is empty
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eq_(client.stream_list(), [])
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# Create Unicode stream, match it
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raw = [ u"/düsseldorf/raw", u"uint16_6" ]
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prep = [ u"/düsseldorf/prep", u"uint16_6" ]
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client.stream_create(*raw)
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eq_(client.stream_list(), [raw])
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eq_(client.stream_list(layout=raw[1]), [raw])
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eq_(client.stream_list(path=raw[0]), [raw])
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client.stream_create(*prep)
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eq_(client.stream_list(), [prep, raw])
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# Set / get metadata with Unicode keys and values
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eq_(client.stream_get_metadata(raw[0]), {})
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eq_(client.stream_get_metadata(prep[0]), {})
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meta1 = { u"alpha": u"α",
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u"β": u"beta" }
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meta2 = { u"alpha": u"α" }
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meta3 = { u"β": u"beta" }
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client.stream_set_metadata(prep[0], meta1)
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client.stream_update_metadata(prep[0], {})
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client.stream_update_metadata(raw[0], meta2)
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client.stream_update_metadata(raw[0], meta3)
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eq_(client.stream_get_metadata(prep[0]), meta1)
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eq_(client.stream_get_metadata(raw[0]), meta1)
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eq_(client.stream_get_metadata(raw[0], [ "alpha" ]), meta2)
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eq_(client.stream_get_metadata(raw[0], [ "alpha", "β" ]), meta1)
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client.close()
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def test_client_09_closing(self):
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# Make sure we actually close sockets correctly. New
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# connections will block for a while if they're not, since the
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# server will stop accepting new connections.
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for test in [1, 2]:
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start = time.time()
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for i in range(50):
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if time.time() - start > 15:
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raise AssertionError("Connections seem to be blocking... "
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"probably not closing properly.")
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if test == 1:
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# explicit close
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client = nilmdb.Client(url = testurl)
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with assert_raises(ClientError) as e:
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client.stream_remove("/newton/prep", 123, 120)
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client.close() # remove this to see the failure
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elif test == 2:
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# use the context manager
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with nilmdb.Client(url = testurl) as c:
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with assert_raises(ClientError) as e:
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c.stream_remove("/newton/prep", 123, 120)
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def test_client_10_context(self):
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# Test using the client's stream insertion context manager to
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# insert data.
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client = nilmdb.Client(testurl)
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client.stream_create("/context/test", "uint16_1")
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with client.stream_insert_context("/context/test") as ctx:
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# override _max_data to trigger frequent server updates
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ctx._max_data = 15
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with assert_raises(ValueError):
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ctx.insert_line("100 1")
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ctx.insert_line("100 1\n")
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ctx.insert_iter([ "101 1\n",
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"102 1\n",
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"103 1\n" ])
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ctx.insert_line("104 1\n")
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ctx.insert_line("105 1\n")
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ctx.finalize()
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ctx.insert_line("106 1\n")
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ctx.update_end(106.5)
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ctx.finalize()
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ctx.update_start(106.8)
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ctx.insert_line("107 1\n")
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ctx.insert_line("108 1\n")
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ctx.insert_line("109 1\n")
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ctx.insert_line("110 1\n")
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ctx.insert_line("111 1\n")
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ctx.update_end(113)
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ctx.insert_line("112 1\n")
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ctx.update_end(114)
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ctx.insert_line("113 1\n")
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ctx.update_end(115)
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ctx.insert_line("114 1\n")
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ctx.finalize()
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with assert_raises(ClientError):
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with client.stream_insert_context("/context/test", 100, 200) as ctx:
|
||
ctx.insert_line("115 1\n")
|
||
|
||
with assert_raises(ClientError):
|
||
with client.stream_insert_context("/context/test", 200, 300) as ctx:
|
||
ctx.insert_line("115 1\n")
|
||
|
||
with client.stream_insert_context("/context/test", 200, 300) as ctx:
|
||
# make sure our override wasn't permanent
|
||
ne_(ctx._max_data, 15)
|
||
ctx.insert_line("225 1\n")
|
||
ctx.finalize()
|
||
|
||
eq_(list(client.stream_intervals("/context/test")),
|
||
[ [ 100, 105.000001 ],
|
||
[ 106, 106.5 ],
|
||
[ 106.8, 115 ],
|
||
[ 200, 300 ] ])
|
||
|
||
client.stream_destroy("/context/test")
|
||
client.close()
|
||
|
||
def test_client_11_emptyintervals(self):
|
||
# Empty intervals are ok! If recording detection events
|
||
# by inserting rows into the database, we want to be able to
|
||
# have an interval where no events occurred. Test them here.
|
||
client = nilmdb.Client(testurl)
|
||
client.stream_create("/empty/test", "uint16_1")
|
||
|
||
def info():
|
||
result = []
|
||
for interval in list(client.stream_intervals("/empty/test")):
|
||
result.append((client.stream_count("/empty/test", *interval),
|
||
interval))
|
||
return result
|
||
|
||
eq_(info(), [])
|
||
|
||
# Insert a region with just a few points
|
||
with client.stream_insert_context("/empty/test") as ctx:
|
||
ctx.update_start(100)
|
||
ctx.insert_line("140 1\n")
|
||
ctx.insert_line("150 1\n")
|
||
ctx.insert_line("160 1\n")
|
||
ctx.update_end(200)
|
||
ctx.finalize()
|
||
|
||
eq_(info(), [(3, [100, 200])])
|
||
|
||
# Delete chunk, which will leave one data point and two intervals
|
||
client.stream_remove("/empty/test", 145, 175)
|
||
eq_(info(), [(1, [100, 145]),
|
||
(0, [175, 200])])
|
||
|
||
# Try also creating a completely empty interval from scratch,
|
||
# in a few different ways.
|
||
client.stream_insert_block("/empty/test", "", 300, 350)
|
||
client.stream_insert("/empty/test", [], 400, 450)
|
||
with client.stream_insert_context("/empty/test", 500, 550):
|
||
pass
|
||
|
||
# If enough timestamps aren't provided, empty streams won't be created.
|
||
client.stream_insert("/empty/test", [])
|
||
with client.stream_insert_context("/empty/test"):
|
||
pass
|
||
client.stream_insert("/empty/test", [], start = 600)
|
||
with client.stream_insert_context("/empty/test", start = 700):
|
||
pass
|
||
client.stream_insert("/empty/test", [], end = 850)
|
||
with client.stream_insert_context("/empty/test", end = 950):
|
||
pass
|
||
|
||
# Try various things that might cause problems
|
||
with client.stream_insert_context("/empty/test", 1000, 1050):
|
||
ctx.finalize() # inserts [1000, 1050]
|
||
ctx.finalize() # nothing
|
||
ctx.finalize() # nothing
|
||
ctx.insert_line("1100 1\n")
|
||
ctx.finalize() # inserts [1100, 1100.000001]
|
||
ctx.update_start(1199)
|
||
ctx.insert_line("1200 1\n")
|
||
ctx.update_end(1250)
|
||
ctx.finalize() # inserts [1199, 1250]
|
||
ctx.update_start(1299)
|
||
ctx.finalize() # nothing
|
||
ctx.update_end(1350)
|
||
ctx.finalize() # nothing
|
||
ctx.update_start(1400)
|
||
ctx.update_end(1450)
|
||
ctx.finalize()
|
||
# implicit last finalize inserts [1400, 1450]
|
||
|
||
# Check everything
|
||
eq_(info(), [(1, [100, 145]),
|
||
(0, [175, 200]),
|
||
(0, [300, 350]),
|
||
(0, [400, 450]),
|
||
(0, [500, 550]),
|
||
(0, [1000, 1050]),
|
||
(1, [1100, 1100.000001]),
|
||
(1, [1199, 1250]),
|
||
(0, [1400, 1450]),
|
||
])
|
||
|
||
# Clean up
|
||
client.stream_destroy("/empty/test")
|
||
client.close()
|
||
|
||
def test_client_12_persistent(self):
|
||
# Check that connections are persistent when they should be.
|
||
# This is pretty hard to test; we have to poke deep into
|
||
# the Requests library.
|
||
with nilmdb.Client(url = testurl) as c:
|
||
def connections():
|
||
try:
|
||
poolmanager = c.http._last_response.connection.poolmanager
|
||
pool = poolmanager.pools[('http','localhost',32180)]
|
||
return (pool.num_connections, pool.num_requests)
|
||
except:
|
||
raise SkipTest("can't get connection info")
|
||
|
||
# First request makes a connection
|
||
c.stream_create("/persist/test", "uint16_1")
|
||
eq_(connections(), (1, 1))
|
||
|
||
# Non-generator
|
||
c.stream_list("/persist/test")
|
||
eq_(connections(), (1, 2))
|
||
c.stream_list("/persist/test")
|
||
eq_(connections(), (1, 3))
|
||
|
||
# Generators
|
||
for x in c.stream_intervals("/persist/test"):
|
||
pass
|
||
eq_(connections(), (1, 4))
|
||
for x in c.stream_intervals("/persist/test"):
|
||
pass
|
||
eq_(connections(), (1, 5))
|
||
|
||
# Clean up
|
||
c.stream_destroy("/persist/test")
|
||
eq_(connections(), (1, 6))
|