toolu-orm-core 0.2.0

Schema definitions, migrations and driver traits for toolu-orm
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

use std::collections::BTreeMap;

use toolu_orm_core::diff::{diff_enums, Operation};
use toolu_orm_core::snapshot::{Snapshot, SnapshotEnum, SnapshotMeta};

fn empty_snapshot_with_enums(enums: BTreeMap<String, SnapshotEnum>) -> Snapshot {
  Snapshot {
    version: 1,
    dialect: "postgres".to_owned(),
    id: "test".to_owned(),
    prev_id: "prev".to_owned(),
    tables: BTreeMap::new(),
    enums,
    meta: SnapshotMeta::default(),
  }
}

#[test]
fn diff_create_enum() {
  let old = empty_snapshot_with_enums(BTreeMap::new());
  let mut new_enums = BTreeMap::new();
  new_enums.insert(
    "status".to_owned(),
    SnapshotEnum {
      name: "status".to_owned(),
      variants: vec!["draft".to_owned(), "active".to_owned()],
    },
  );

  let new_snapshot = empty_snapshot_with_enums(new_enums);
  let ops = diff_enums(&old, &new_snapshot);

  match ops.as_slice() {
    [Operation::CreateEnum { name, variants }] => {
      assert_eq!(name, "status");
      assert_eq!(variants.len(), 2);
    },
    _ => assert_eq!(ops.len(), 1, "expected exactly one CreateEnum operation"),
  }
}

#[test]
fn diff_drop_enum() {
  let mut old_enums = BTreeMap::new();
  old_enums.insert(
    "status".to_owned(),
    SnapshotEnum {
      name: "status".to_owned(),
      variants: vec!["draft".to_owned()],
    },
  );
  let old = empty_snapshot_with_enums(old_enums);
  let new = empty_snapshot_with_enums(BTreeMap::new());
  let ops = diff_enums(&old, &new);

  match ops.as_slice() {
    [Operation::DropEnum { name }] => assert_eq!(name, "status"),
    _ => assert_eq!(ops.len(), 1, "expected exactly one DropEnum operation"),
  }
}

#[test]
fn diff_alter_enum_add_variant() {
  let mut old_enums = BTreeMap::new();
  old_enums.insert(
    "status".to_owned(),
    SnapshotEnum {
      name: "status".to_owned(),
      variants: vec!["draft".to_owned(), "active".to_owned()],
    },
  );

  let mut new_enums = BTreeMap::new();
  new_enums.insert(
    "status".to_owned(),
    SnapshotEnum {
      name: "status".to_owned(),
      variants: vec![
        "draft".to_owned(),
        "active".to_owned(),
        "archived".to_owned(),
      ],
    },
  );

  let old = empty_snapshot_with_enums(old_enums);
  let new = empty_snapshot_with_enums(new_enums);
  let ops = diff_enums(&old, &new);

  match ops.as_slice() {
    [Operation::AlterEnum {
      name,
      added,
      removed,
    }] => {
      assert_eq!(name, "status");
      assert_eq!(added, &vec!["archived".to_owned()]);
      assert!(removed.is_empty());
    },
    [wrong] => assert!(
      matches!(wrong, Operation::AlterEnum { .. }),
      "expected AlterEnum, got {wrong:?}"
    ),
    _ => assert_eq!(ops.len(), 1, "expected exactly one operation"),
  }
}

#[test]
fn diff_alter_enum_remove_variant() {
  let mut old_enums = BTreeMap::new();
  old_enums.insert(
    "status".to_owned(),
    SnapshotEnum {
      name: "status".to_owned(),
      variants: vec![
        "draft".to_owned(),
        "active".to_owned(),
        "old_status".to_owned(),
      ],
    },
  );

  let mut new_enums = BTreeMap::new();
  new_enums.insert(
    "status".to_owned(),
    SnapshotEnum {
      name: "status".to_owned(),
      variants: vec!["draft".to_owned(), "active".to_owned()],
    },
  );

  let old = empty_snapshot_with_enums(old_enums);
  let new = empty_snapshot_with_enums(new_enums);
  let ops = diff_enums(&old, &new);

  match ops.as_slice() {
    [Operation::AlterEnum {
      name,
      added,
      removed,
    }] => {
      assert_eq!(name, "status");
      assert!(added.is_empty());
      assert_eq!(removed, &vec!["old_status".to_owned()]);
    },
    [wrong] => assert!(
      matches!(wrong, Operation::AlterEnum { .. }),
      "expected AlterEnum, got {wrong:?}"
    ),
    _ => assert_eq!(ops.len(), 1, "expected exactly one operation"),
  }
}

#[test]
fn diff_enum_unchanged() {
  let mut enums = BTreeMap::new();
  enums.insert(
    "status".to_owned(),
    SnapshotEnum {
      name: "status".to_owned(),
      variants: vec!["draft".to_owned(), "active".to_owned()],
    },
  );

  let old = empty_snapshot_with_enums(enums.clone());
  let new = empty_snapshot_with_enums(enums);
  let ops = diff_enums(&old, &new);

  assert!(ops.is_empty());
}