/
test_io_sql.py
184 lines (136 loc) · 6.19 KB
/
test_io_sql.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
import sqlite3
import pytest
from vallenae.io._sql import (
query_conditions,
count_sql_results,
read_sql_generator,
QueryIterable,
insert_query_from_dict,
insert_from_dict,
update_query_from_dict,
update_from_dict,
)
@pytest.fixture(name="memory_abc")
def fixture_memory_abc():
con = sqlite3.connect(":memory:")
con.execute("CREATE TABLE abc (a INT, b INT, c INT)")
# add 10 rows of dummy data
for i in range(10):
con.execute(
f"INSERT INTO abc (a, b, c) VALUES ({i}, {10 + i}, {20 + i})"
)
yield con
con.close()
@pytest.fixture(name="memory_id_abc")
def fixture_memory_id_abc():
con = sqlite3.connect(":memory:")
con.execute("CREATE TABLE abc (id INT UNIQUE NOT NULL, a INT, b INT, c INT)")
yield con
con.close()
def get_row_by_id(connection, table, row_id):
cur = connection.execute(f"SELECT * FROM {table} WHERE id == {row_id}")
columns = [column[0] for column in cur.description]
values = cur.fetchone()
if values is None:
return None
return dict(zip(columns, values))
def test_sql_query_conditions():
# no or none values
assert query_conditions() == ""
assert query_conditions(isin={"Number": None}) == ""
assert query_conditions(equal={"Number": None}) == ""
assert query_conditions(less={"Number": None}) == ""
assert query_conditions(less_equal={"Number": None}) == ""
assert query_conditions(greater={"Number": None}) == ""
assert query_conditions(greater_equal={"Number": None}) == ""
# single conditions
assert query_conditions(
isin={"Number": (1, 2, 3)}
) == "WHERE Number IN (1, 2, 3)"
assert query_conditions(
isin={"Number": 1.1}
) == "WHERE Number IN (1.1)"
assert query_conditions(
equal={"Str": "value"}
) == "WHERE Str == 'value'"
assert query_conditions(
less={"a": 1.1}
) == "WHERE a < 1.1"
assert query_conditions(
less_equal={"a": 2.2}
) == "WHERE a <= 2.2"
assert query_conditions(
greater={"a": 3.3}
) == "WHERE a > 3.3"
assert query_conditions(
greater_equal={"a": 4.4}
) == "WHERE a >= 4.4"
# multiple conditions
assert query_conditions(
equal={"a": 0},
less={"b": 1},
less_equal={"c": 2},
greater={"d": 3},
greater_equal={"e": 4}
) == "WHERE a == 0 AND b < 1 AND c <= 2 AND d > 3 AND e >= 4"
def test_count_sql_results(memory_abc):
query_all = "SELECT * FROM abc"
assert count_sql_results(memory_abc, query_all) == 10
assert count_sql_results(memory_abc, query_all + " WHERE a >= 0") == 10
assert count_sql_results(memory_abc, query_all + " WHERE b >= 0") == 10
assert count_sql_results(memory_abc, query_all + " WHERE c >= 0") == 10
assert count_sql_results(memory_abc, query_all + " WHERE a >= 3") == 7
assert count_sql_results(memory_abc, query_all + " WHERE a == 1") == 1
assert count_sql_results(memory_abc, query_all + " WHERE b >= 15") == 5
assert count_sql_results(memory_abc, query_all + " WHERE b == 11") == 1
assert count_sql_results(memory_abc, query_all + " WHERE b == 9") == 0
assert count_sql_results(memory_abc, query_all + " WHERE c >= 22") == 8
assert count_sql_results(memory_abc, query_all + " WHERE c == 22") == 1
assert count_sql_results(memory_abc, query_all + " WHERE c == 111") == 0
def test_read_sql_generator(memory_abc):
for index, row_dict in enumerate(read_sql_generator(memory_abc, "SELECT * FROM abc")):
assert len(row_dict) == 3
assert list(row_dict.keys()) == ["a", "b", "c"]
assert row_dict["a"] == index
assert row_dict["b"] == 10 + index
assert row_dict["c"] == 20 + index
def test_query_iterable(memory_abc):
# simple conversion function dict to tuple
def dict_to_type_func(row_dict):
return (row_dict["a"], row_dict["b"], row_dict["c"])
iterable = QueryIterable(memory_abc, "SELECT * FROM abc", dict_to_type_func)
assert len(iterable) == 10
for index, row in enumerate(iterable):
assert row == (index, 10 + index, 20 + index)
def test_insert_query_from_dict():
row_dict = {"a": 1, "b": 2, "c": 3}
assert insert_query_from_dict("abc", row_dict) == "INSERT INTO abc (a, b, c) VALUES (:a, :b, :c)"
row_dict = {"a": 1, "b": None, "c": 3}
assert insert_query_from_dict("abc", row_dict) == "INSERT INTO abc (a, c) VALUES (:a, :c)"
def test_insert_from_dict(memory_id_abc):
row_by_id = lambda row_id: get_row_by_id(memory_id_abc, "abc", row_id)
assert insert_from_dict(memory_id_abc, "abc", {"id": 1, "a": 1}) == 1
assert insert_from_dict(memory_id_abc, "abc", {"id": 2, "a": 2, "b": 1}) == 2
assert insert_from_dict(memory_id_abc, "abc", {"id": 3, "a": 3, "b": 2, "c": 1}) == 3
assert row_by_id(1) == {"id": 1, "a": 1, "b": None, "c": None}
assert row_by_id(2) == {"id": 2, "a": 2, "b": 1, "c": None}
assert row_by_id(3) == {"id": 3, "a": 3, "b": 2, "c": 1}
with pytest.raises(sqlite3.OperationalError):
insert_from_dict(memory_id_abc, "abc", {"not_existing_column": 111})
def test_update_query_from_dict():
row_dict = {"a": 1, "b": None, "c": 3, "d": 4}
assert update_query_from_dict("abc", row_dict, "a") == "UPDATE abc SET c = :c, d = :d WHERE a == :a"
with pytest.raises(ValueError):
update_query_from_dict("abc", row_dict, "xyz") # xyz not key of row_dict
def test_update_from_dict(memory_id_abc):
row_by_id = lambda row_id: get_row_by_id(memory_id_abc, "abc", row_id)
memory_id_abc.execute("INSERT INTO abc (id, a, b, c) VALUES (1, 11, 22, 33)")
assert row_by_id(1) == {"id": 1, "a": 11, "b": 22, "c": 33}
assert update_from_dict(memory_id_abc, "abc", {"id": 1, "a": 0, "b": 0, "c": 0}, "id") == 1
assert row_by_id(1) == {"id": 1, "a": 0, "b": 0, "c": 0}
assert update_from_dict(memory_id_abc, "abc", {"id": 1, "a": 100}, "id") == 1
assert row_by_id(1) == {"id": 1, "a": 100, "b": 0, "c": 0}
with pytest.raises(ValueError):
update_from_dict(memory_id_abc, "abc", {"a": 100}, "id") # id not in dict
with pytest.raises(sqlite3.OperationalError):
update_from_dict(memory_id_abc, "abc", {"id": 1, "not_existing_column": 111}, "id")