sqlite-utils/tests/test_tracer.py
2026-06-21 16:29:32 -07:00

96 lines
3 KiB
Python

from sqlite_utils import Database
def test_tracer():
collected = []
db = Database(
memory=True, tracer=lambda sql, params: collected.append((sql, params))
)
dogs = db.table("dogs")
dogs.insert({"name": "Cleopaws"})
dogs.enable_fts(["name"])
dogs.search("Cleopaws")
assert collected == [
("PRAGMA recursive_triggers=on;", None),
("select name from sqlite_master where type = 'view'", None),
("select name from sqlite_master where type = 'table'", None),
("select name from sqlite_master where type = 'view'", None),
("select name from sqlite_master where type = 'view'", None),
("select name from sqlite_master where type = 'table'", None),
("select name from sqlite_master where type = 'view'", None),
('CREATE TABLE "dogs" (\n "name" TEXT\n);\n ', None),
("select name from sqlite_master where type = 'view'", None),
('INSERT INTO "dogs" ("name") VALUES (?)', ["Cleopaws"]),
(
'CREATE VIRTUAL TABLE "dogs_fts" USING FTS5 (\n "name",\n content="dogs"\n)',
None,
),
(
'INSERT INTO "dogs_fts" (rowid, "name")\n SELECT rowid, "name" FROM "dogs";',
None,
),
]
def test_with_tracer():
collected = []
def tracer(sql, params):
return collected.append((sql, params))
db = Database(memory=True)
dogs = db.table("dogs")
dogs.insert({"name": "Cleopaws"})
dogs.enable_fts(["name"])
assert len(collected) == 0
with db.tracer(tracer):
list(dogs.search("Cleopaws"))
assert len(collected) == 4
assert collected == [
(
"SELECT name FROM sqlite_master\n"
" WHERE rootpage = 0\n"
" AND (\n"
" sql LIKE :like\n"
" OR sql LIKE :like2\n"
" OR (\n"
" tbl_name = :table\n"
" AND sql LIKE '%VIRTUAL TABLE%USING FTS%'\n"
" )\n"
" )",
{
"like": "%VIRTUAL TABLE%USING FTS%content=[dogs]%",
"like2": '%VIRTUAL TABLE%USING FTS%content="dogs"%',
"table": "dogs",
},
),
("select name from sqlite_master where type = 'view'", None),
("select sql from sqlite_master where name = ?", ("dogs_fts",)),
(
'with "original" as (\n'
" select\n"
" rowid,\n"
" *\n"
' from "dogs"\n'
")\n"
"select\n"
' "original".*\n'
"from\n"
' "original"\n'
' join "dogs_fts" on "original".rowid = "dogs_fts".rowid\n'
"where\n"
' "dogs_fts" match :query\n'
"order by\n"
' "dogs_fts".rank',
{"query": "Cleopaws"},
),
]
# Outside the with block collected should not be appended to
dogs.insert({"name": "Cleopaws"})
assert len(collected) == 4