cder 0.2.2

database seed generator that helps create and persist struct-typed instances based on serde-compatible yaml files
Documentation 
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
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201

mod test_utils;
use test_utils::{
    get_test_base_dir, parse_datetime, sort_records_by_ids, Customer, Item, MockTable, Order, Plan,
};
extern crate cder;

use anyhow::Result;
use cder::DatabaseSeeder;
use tokio::runtime::Runtime;

#[test]
fn test_database_seeder_new() {
    let mut seeder = DatabaseSeeder::new();
    seeder.set_dir("fixtures");
    assert!(seeder.filenames.is_empty());
    assert_eq!(seeder.base_dir, "fixtures".to_string());
}

#[test]
fn test_database_seeder_populate_items() -> Result<()> {
    let base_dir = get_test_base_dir();
    let mock_table = MockTable::<Item>::new(vec![
        ("melon".to_string(), 1),
        ("orange".to_string(), 2),
        ("apple".to_string(), 3),
        ("carrot".to_string(), 4),
    ]);
    let rt = Runtime::new().unwrap();

    let mut seeder = DatabaseSeeder::new();
    let ids = seeder.populate(&format!("{}/items.yml", base_dir), |input: Item| {
        let mut mock_table = mock_table.clone();
        rt.block_on(mock_table.insert(input))
    })?;

    let persisted_records = mock_table.get_records();
    let records = sort_records_by_ids(persisted_records, ids);

    assert_eq!(records[0].name, "melon");
    assert_eq!(records[0].price, 500.0);

    assert_eq!(records[1].name, "orange");
    assert_eq!(records[1].price, 200.0);

    assert_eq!(records[2].name, "apple");
    assert_eq!(records[2].price, 100.0);

    assert_eq!(records[3].name, "carrot");
    assert_eq!(records[3].price, 150.0);

    Ok(())
}

#[test]
fn test_database_seeder_populate_customers() -> Result<()> {
    let base_dir = get_test_base_dir();
    let mock_table = MockTable::<Customer>::new(vec![
        ("Alice".to_string(), 1),
        ("Bob".to_string(), 2),
        ("Developer".to_string(), 3),
    ]);
    let rt = Runtime::new().unwrap();

    let mut seeder = DatabaseSeeder::new();
    seeder.set_dir(&base_dir);
    let ids = seeder.populate("customers.yml", |input: Customer| {
        let mut mock_table = mock_table.clone();
        rt.block_on(mock_table.insert(input))
    })?;

    let persisted_records = mock_table.get_records();
    let records = sort_records_by_ids(persisted_records, ids);

    assert_eq!(records[0].name, "Alice");
    assert_eq!(records[0].emails.len(), 1);
    assert_eq!(records[0].emails[0], "alice@example.com");
    assert_eq!(records[0].plan, Plan::Premium);
    assert_eq!(records[0].country_code, None);

    assert_eq!(records[1].name, "Bob");
    assert_eq!(records[1].emails.len(), 2);
    assert_eq!(records[1].emails[0], "bob@example.com");
    assert_eq!(records[1].emails[1], "bob.doe@example.co.jp");
    assert_eq!(
        records[1].plan,
        Plan::Family {
            shared_membership: 4
        }
    );
    assert_eq!(records[1].country_code, Some(81));

    assert_eq!(records[2].name, "Developer");
    assert_eq!(records[2].emails.len(), 1);
    // falls back to default
    assert_eq!(records[2].emails[0], "developer@example.com");
    assert_eq!(records[2].plan, Plan::Standard);
    assert_eq!(records[2].country_code, Some(44));

    Ok(())
}

#[test]
fn test_database_seeder_populate_orders() -> Result<()> {
    let base_dir = get_test_base_dir();
    let rt = Runtime::new().unwrap();

    let mut seeder = DatabaseSeeder::new();
    seeder.set_dir(&base_dir);

    {
        // when dependencies are missing

        let mock_orders_table = MockTable::<Order>::new(vec![
            ("1200".to_string(), 1),
            ("1201".to_string(), 2),
            ("1202".to_string(), 3),
            ("1203".to_string(), 4),
        ]);
        let results = seeder.populate("orders.yml", |input: Order| {
            let mut mock_orders_table = mock_orders_table.clone();
            rt.block_on(mock_orders_table.insert(input))
        });

        assert!(results.is_err());
    }

    {
        // when dependencies are provided
        let mock_items_table = MockTable::<Item>::new(vec![
            ("melon".to_string(), 1),
            ("orange".to_string(), 2),
            ("apple".to_string(), 3),
            ("carrot".to_string(), 4),
        ]);
        seeder.populate("items.yml", |input: Item| {
            let mut mock_items_table = mock_items_table.clone();
            rt.block_on(mock_items_table.insert(input))
        })?;
        let mock_customers_table = MockTable::<Customer>::new(vec![
            ("Alice".to_string(), 1),
            ("Bob".to_string(), 2),
            ("Developer".to_string(), 3),
        ]);
        seeder.populate("customers.yml", |input: Customer| {
            let mut mock_customers_table = mock_customers_table.clone();
            rt.block_on(mock_customers_table.insert(input))
        })?;

        let mock_orders_table = MockTable::<Order>::new(vec![
            ("1200".to_string(), 1),
            ("1201".to_string(), 2),
            ("1202".to_string(), 3),
            ("1203".to_string(), 4),
        ]);
        let ids = seeder.populate("orders.yml", |input: Order| {
            let mut mock_orders_table = mock_orders_table.clone();
            rt.block_on(mock_orders_table.insert(input))
        })?;

        let persisted_records = mock_orders_table.get_records();
        let records = sort_records_by_ids(persisted_records, ids);

        assert_eq!(records[0].id, 1200);
        assert_eq!(records[0].customer_id, 1);
        assert_eq!(records[0].item_id, 3);
        assert_eq!(records[0].quantity, 2);
        assert_eq!(
            records[0].purchased_at,
            parse_datetime("2021-03-01 15:15:44")?
        );

        assert_eq!(records[1].id, 1201);
        assert_eq!(records[1].customer_id, 2);
        assert_eq!(records[1].item_id, 1);
        assert_eq!(records[1].quantity, 1);
        assert_eq!(
            records[1].purchased_at,
            parse_datetime("2021-03-02 07:51:20")?
        );

        assert_eq!(records[2].id, 1202);
        assert_eq!(records[2].customer_id, 1);
        assert_eq!(records[2].item_id, 4);
        assert_eq!(records[2].quantity, 4);
        assert_eq!(
            records[2].purchased_at,
            parse_datetime("2021-03-10 10:10:33")?
        );

        assert_eq!(records[3].id, 1203);
        assert_eq!(records[3].customer_id, 3);
        assert_eq!(records[3].item_id, 1);
        assert_eq!(records[3].quantity, 2);
        assert_eq!(
            records[3].purchased_at,
            parse_datetime("2021-03-11 11:55:44")?
        );
    }

    Ok(())
}