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# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy of
# the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.
import mango
import user_docs
import unittest
class IndexSelectionTests:
def test_basic(self):
resp = self.db.find({"age": 123}, explain=True)
self.assertEqual(resp["index"]["type"], "json")
def test_with_and(self):
resp = self.db.find({
"name.first": "Stephanie",
"name.last": "This doesn't have to match anything."
}, explain=True)
self.assertEqual(resp["index"]["type"], "json")
def test_use_most_columns(self):
# ddoc id for the age index
ddocid = "_design/ad3d537c03cd7c6a43cf8dff66ef70ea54c2b40f"
resp = self.db.find({
"name.first": "Stephanie",
"name.last": "Something or other",
"age": {"$gt": 1}
}, explain=True)
self.assertNotEqual(resp["index"]["ddoc"], "_design/" + ddocid)
resp = self.db.find({
"name.first": "Stephanie",
"name.last": "Something or other",
"age": {"$gt": 1}
}, use_index=ddocid, explain=True)
self.assertEqual(resp["index"]["ddoc"], ddocid)
def test_no_valid_sort_index(self):
try:
self.db.find({"_id": {"$gt": None}}, sort=["name"], return_raw=True)
except Exception as e:
self.assertEqual(e.response.status_code, 400)
else:
raise AssertionError("bad find")
def test_invalid_use_index(self):
# ddoc id for the age index
ddocid = "_design/ad3d537c03cd7c6a43cf8dff66ef70ea54c2b40f"
try:
self.db.find({}, use_index=ddocid)
except Exception as e:
self.assertEqual(e.response.status_code, 400)
else:
raise AssertionError("bad find")
def test_uses_index_when_no_range_or_equals(self):
# index on ["manager"] should be valid because
# selector requires "manager" to exist. The
# selector doesn't narrow the keyrange so it's
# a full index scan
selector = {
"manager": {"$exists": True}
}
docs = self.db.find(selector)
self.assertEqual(len(docs), 14)
resp_explain = self.db.find(selector, explain=True)
self.assertEqual(resp_explain["index"]["type"], "json")
def test_reject_use_index_invalid_fields(self):
# index on ["company","manager"] which should not be valid
ddocid = "_design/a0c425a60cf3c3c09e3c537c9ef20059dcef9198"
selector = {
"company": "Pharmex"
}
try:
self.db.find(selector, use_index=ddocid)
except Exception as e:
self.assertEqual(e.response.status_code, 400)
else:
raise AssertionError("did not reject bad use_index")
def test_reject_use_index_sort_order(self):
# index on ["company","manager"] which should not be valid
ddocid = "_design/a0c425a60cf3c3c09e3c537c9ef20059dcef9198"
selector = {
"company": {"$gt": None},
"manager": {"$gt": None}
}
try:
self.db.find(selector, use_index=ddocid, sort=[{"manager":"desc"}])
except Exception as e:
self.assertEqual(e.response.status_code, 400)
else:
raise AssertionError("did not reject bad use_index")
# This doc will not be saved given the new ddoc validation code
# in couch_mrview
def test_manual_bad_view_idx01(self):
design_doc = {
"_id": "_design/bad_view_index",
"language": "query",
"views": {
"queryidx1": {
"map": {
"fields": {
"age": "asc"
}
},
"reduce": "_count",
"options": {
"def": {
"fields": [
{
"age": "asc"
}
]
},
"w": 2
}
}
},
"views" : {
"views001" : {
"map" : "function(employee){if(employee.training)"
+ "{emit(employee.number, employee.training);}}"
}
}
}
with self.assertRaises(KeyError):
self.db.save_doc(design_doc)
class JSONIndexSelectionTests(mango.UserDocsTests, IndexSelectionTests):
@classmethod
def setUpClass(klass):
super(JSONIndexSelectionTests, klass).setUpClass()
def test_uses_all_docs_when_fields_do_not_match_selector(self):
# index exists on ["company", "manager"] but not ["company"]
# so we should fall back to all docs (so we include docs
# with no "manager" field)
selector = {
"company": "Pharmex"
}
docs = self.db.find(selector)
self.assertEqual(len(docs), 1)
self.assertEqual(docs[0]["company"], "Pharmex")
self.assertNotIn("manager", docs[0])
resp_explain = self.db.find(selector, explain=True)
self.assertEqual(resp_explain["index"]["type"], "special")
def test_uses_all_docs_when_selector_doesnt_require_fields_to_exist(self):
# as in test above, use a selector that doesn't overlap with the index
# due to an explicit exists clause
selector = {
"company": "Pharmex",
"manager": {"$exists": False}
}
docs = self.db.find(selector)
self.assertEqual(len(docs), 1)
self.assertEqual(docs[0]["company"], "Pharmex")
self.assertNotIn("manager", docs[0])
resp_explain = self.db.find(selector, explain=True)
self.assertEqual(resp_explain["index"]["type"], "special")
@unittest.skipUnless(mango.has_text_service(), "requires text service")
class TextIndexSelectionTests(mango.UserDocsTests, IndexSelectionTests):
@classmethod
def setUpClass(klass):
super(TextIndexSelectionTests, klass).setUpClass()
def setUp(self):
self.db.recreate()
user_docs.add_text_indexes(self.db, {})
def test_with_text(self):
resp = self.db.find({
"$text" : "Stephanie",
"name.first": "Stephanie",
"name.last": "This doesn't have to match anything."
}, explain=True)
self.assertEqual(resp["index"]["type"], "text")
def test_no_view_index(self):
resp = self.db.find({"name.first": "Ohai!"}, explain=True)
self.assertEqual(resp["index"]["type"], "text")
def test_with_or(self):
resp = self.db.find({
"$or": [
{"name.first": "Stephanie"},
{"name.last": "This doesn't have to match anything."}
]
}, explain=True)
self.assertEqual(resp["index"]["type"], "text")
def test_manual_bad_text_idx(self):
design_doc = {
"_id": "_design/bad_text_index",
"language": "query",
"indexes": {
"text_index": {
"default_analyzer": "keyword",
"default_field": {},
"selector": {},
"fields": "all_fields",
"analyzer": {
"name": "perfield",
"default": "keyword",
"fields": {
"$default": "standard"
}
}
}
},
"indexes": {
"st_index": {
"analyzer": "standard",
"index": "function(doc){\n index(\"st_index\", doc.geometry);\n}"
}
}
}
self.db.save_doc(design_doc)
docs= self.db.find({"age" : 48})
self.assertEqual(len(docs), 1)
self.assertEqual(docs[0]["name"]["first"], "Stephanie")
self.assertEqual(docs[0]["age"], 48)
@unittest.skipUnless(mango.has_text_service(), "requires text service")
class MultiTextIndexSelectionTests(mango.UserDocsTests):
@classmethod
def setUpClass(klass):
super(MultiTextIndexSelectionTests, klass).setUpClass()
if mango.has_text_service():
klass.db.create_text_index(ddoc="foo", analyzer="keyword")
klass.db.create_text_index(ddoc="bar", analyzer="email")
def test_fallback_to_json_with_multi_text(self):
resp = self.db.find({"name.first": "A first name", "name.last": "A last name"}, explain=True)
self.assertEqual(resp["index"]["type"], "json")
def test_multi_text_index_is_error(self):
try:
self.db.find({"$text": "a query"}, explain=True)
except Exception as e:
self.assertEqual(e.response.status_code, 400)
def test_use_index_works(self):
resp = self.db.find({"$text": "a query"}, use_index="foo", explain=True)
self.assertEqual(resp["index"]["ddoc"], "_design/foo")
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