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from sqlite_utils import Database
def test_tracer():
collected = []
db = Database(
memory=True, tracer=lambda sql, params: collected.append((sql, params))
)
db["dogs"].insert({"name": "Cleopaws"})
db["dogs"].enable_fts(["name"])
db["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 = '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"]),
("select name from sqlite_master where type = 'view'", None),
(
"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,
),
("select name from sqlite_master where type = 'view'", None),
]
def test_with_tracer():
collected = []
def tracer(sql, params):
return collected.append((sql, params))
db = Database(memory=True)
db["dogs"].insert({"name": "Cleopaws"})
db["dogs"].enable_fts(["name"])
assert len(collected) == 0
with db.tracer(tracer):
list(db["dogs"].search("Cleopaws"))
assert len(collected) == 5
assert collected == [
("select name from sqlite_master where type = 'view'", None),
(
(
"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
db["dogs"].insert({"name": "Cleopaws"})
assert len(collected) == 5
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