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122 lines
4.4 KiB
Python
122 lines
4.4 KiB
Python
# Author: Paul Kippes <kippesp@gmail.com>
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import unittest
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import sqlite3 as sqlite
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from .test_dbapi import memory_database
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class DumpTests(unittest.TestCase):
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def setUp(self):
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self.cx = sqlite.connect(":memory:")
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self.cu = self.cx.cursor()
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def tearDown(self):
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self.cx.close()
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def test_table_dump(self):
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expected_sqls = [
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"""CREATE TABLE "index"("index" blob);"""
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,
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"""INSERT INTO "index" VALUES(X'01');"""
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,
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"""CREATE TABLE "quoted""table"("quoted""field" text);"""
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,
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"""INSERT INTO "quoted""table" VALUES('quoted''value');"""
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,
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"CREATE TABLE t1(id integer primary key, s1 text, " \
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"t1_i1 integer not null, i2 integer, unique (s1), " \
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"constraint t1_idx1 unique (i2));"
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,
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"INSERT INTO \"t1\" VALUES(1,'foo',10,20);"
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,
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"INSERT INTO \"t1\" VALUES(2,'foo2',30,30);"
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,
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"CREATE TABLE t2(id integer, t2_i1 integer, " \
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"t2_i2 integer, primary key (id)," \
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"foreign key(t2_i1) references t1(t1_i1));"
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,
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"CREATE TRIGGER trigger_1 update of t1_i1 on t1 " \
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"begin " \
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"update t2 set t2_i1 = new.t1_i1 where t2_i1 = old.t1_i1; " \
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"end;"
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,
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"CREATE VIEW v1 as select * from t1 left join t2 " \
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"using (id);"
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]
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[self.cu.execute(s) for s in expected_sqls]
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i = self.cx.iterdump()
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actual_sqls = [s for s in i]
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expected_sqls = ['BEGIN TRANSACTION;'] + expected_sqls + \
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['COMMIT;']
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[self.assertEqual(expected_sqls[i], actual_sqls[i])
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for i in range(len(expected_sqls))]
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def test_dump_autoincrement(self):
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expected = [
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'CREATE TABLE "t1" (id integer primary key autoincrement);',
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'INSERT INTO "t1" VALUES(NULL);',
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'CREATE TABLE "t2" (id integer primary key autoincrement);',
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]
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self.cu.executescript("".join(expected))
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# the NULL value should now be automatically be set to 1
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expected[1] = expected[1].replace("NULL", "1")
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expected.insert(0, "BEGIN TRANSACTION;")
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expected.extend([
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'DELETE FROM "sqlite_sequence";',
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'INSERT INTO "sqlite_sequence" VALUES(\'t1\',1);',
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'COMMIT;',
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])
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actual = [stmt for stmt in self.cx.iterdump()]
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self.assertEqual(expected, actual)
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def test_dump_autoincrement_create_new_db(self):
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self.cu.execute("BEGIN TRANSACTION")
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self.cu.execute("CREATE TABLE t1 (id integer primary key autoincrement)")
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self.cu.execute("CREATE TABLE t2 (id integer primary key autoincrement)")
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self.cu.executemany("INSERT INTO t1 VALUES(?)", ((None,) for _ in range(9)))
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self.cu.executemany("INSERT INTO t2 VALUES(?)", ((None,) for _ in range(4)))
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self.cx.commit()
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with memory_database() as cx2:
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query = "".join(self.cx.iterdump())
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cx2.executescript(query)
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cu2 = cx2.cursor()
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dataset = (
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("t1", 9),
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("t2", 4),
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)
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for table, seq in dataset:
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with self.subTest(table=table, seq=seq):
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res = cu2.execute("""
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SELECT "seq" FROM "sqlite_sequence" WHERE "name" == ?
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""", (table,))
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rows = res.fetchall()
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self.assertEqual(rows[0][0], seq)
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def test_unorderable_row(self):
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# iterdump() should be able to cope with unorderable row types (issue #15545)
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class UnorderableRow:
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def __init__(self, cursor, row):
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self.row = row
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def __getitem__(self, index):
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return self.row[index]
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self.cx.row_factory = UnorderableRow
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CREATE_ALPHA = """CREATE TABLE "alpha" ("one");"""
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CREATE_BETA = """CREATE TABLE "beta" ("two");"""
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expected = [
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"BEGIN TRANSACTION;",
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CREATE_ALPHA,
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CREATE_BETA,
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"COMMIT;"
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]
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self.cu.execute(CREATE_BETA)
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self.cu.execute(CREATE_ALPHA)
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got = list(self.cx.iterdump())
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self.assertEqual(expected, got)
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if __name__ == "__main__":
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unittest.main()
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