sqlite-data/Tests/SQLiteDataTests/FetchOneTests.swift at main · teleki/sqlite-data · GitHub

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
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
import DependenciesTestSupport
import Foundation
import SQLiteData
import Testing

#if canImport(SwiftUI)
  import SwiftUI
#endif

@Suite(.dependency(\.defaultDatabase, try .database())) struct FetchOneTests {
  @Dependency(\.defaultDatabase) var database

  @Test func nonTableInit() {
    @FetchOne var value = 42
    #expect(value == 42)
    #expect($value.loadError == nil)
  }

  @Test func tableInit() async throws {
    @FetchOne var record = Record(id: 0)
    try await $record.load()
    #expect(record == Record(id: 1))
    #expect($record.loadError == nil)
    try await database.write { try Record.delete().execute($0) }
    await #expect(throws: NotFound.self) {
      try await $record.load()
    }
    #expect(record == Record(id: 1))
    #expect($record.loadError is NotFound)
  }

  @Test func optionalTableInit() async throws {
    @FetchOne var record: Record?
    try await $record.load()
    #expect(record == Record(id: 1))
    #expect($record.loadError == nil)
    try await database.write { try Record.delete().execute($0) }
    try await $record.load()
    #expect(record == nil)
    #expect($record.loadError == nil)
  }

  @Test func optionalTableInit_WithDefault() async throws {
    @FetchOne var record: Record? = Record(id: 0)
    try await $record.load()
    #expect(record == Record(id: 1))
    #expect($record.loadError == nil)
    try await database.write { try Record.delete().execute($0) }
    try await $record.load()
    #expect(record == nil)
    #expect($record.loadError == nil)
  }

  @Test func selectStatementInit() async throws {
    @FetchOne(Record.order(by: \.id)) var record = Record(id: 0)
    try await $record.load()
    #expect(record == Record(id: 1))
    #expect($record.loadError == nil)
    try await database.write { try Record.delete().execute($0) }
    await #expect(throws: NotFound.self) {
      try await $record.load()
    }
    #expect(record == Record(id: 1))
    #expect($record.loadError is NotFound)

    await #expect(throws: NotFound.self) {
      try await $record.load(Record.order(by: \.id))
    }
    #expect(record == Record(id: 1))
    #expect($record.loadError is NotFound)
  }

  @Test func statementInit_Representable() async throws {
    @FetchOne(Record.select(\.date)) var recordDate = Date(timeIntervalSince1970: 1729)
    try await $recordDate.load()
    #expect(recordDate.timeIntervalSince1970 == 42)
    #expect($recordDate.loadError == nil)
    try await database.write { try Record.delete().execute($0) }
    await #expect(throws: NotFound.self) {
      try await $recordDate.load()
    }
    #expect(recordDate.timeIntervalSince1970 == 42)
    #expect($recordDate.loadError is NotFound)

    await #expect(throws: NotFound.self) {
      try await $recordDate.load(Record.select(\.date))
    }
    #expect(recordDate.timeIntervalSince1970 == 42)
    #expect($recordDate.loadError is NotFound)
  }

  @Test func statementInit_OptionalRepresentable() async throws {
    @FetchOne(Record.select(\.date)) var recordDate: Date?
    try await $recordDate.load()
    #expect(recordDate?.timeIntervalSince1970 == 42)
    #expect($recordDate.loadError == nil)
    try await database.write { try Record.delete().execute($0) }
    try await $recordDate.load()
    #expect(recordDate?.timeIntervalSince1970 == nil)
    #expect($recordDate.loadError == nil)

    try await $recordDate.load(Record.select(\.date))
    #expect(recordDate?.timeIntervalSince1970 == nil)
    #expect($recordDate.loadError == nil)
  }

  @Test func statementInit_DoubleOptionalRepresentable() async throws {
    @FetchOne(Record.select(\.optionalDate)) var recordDate: Date?
    try await $recordDate.load()
    #expect(recordDate?.timeIntervalSince1970 == nil)
    #expect($recordDate.loadError == nil)
    try await database.write { try Record.delete().execute($0) }
    try await $recordDate.load()
    #expect(recordDate?.timeIntervalSince1970 == nil)
    #expect($recordDate.loadError == nil)

    try await $recordDate.load(Record.select(\.optionalDate))
    #expect(recordDate?.timeIntervalSince1970 == nil)
    #expect($recordDate.loadError == nil)
  }

  @Test func statementInit() async throws {
    @FetchOne(Record.select(\.id)) var recordID = 0
    try await $recordID.load()
    #expect(recordID == 1)
    #expect($recordID.loadError == nil)
    try await database.write { try Record.delete().execute($0) }
    await #expect(throws: NotFound.self) {
      try await $recordID.load()
    }
    #expect(recordID == 1)
    #expect($recordID.loadError is NotFound)

    await #expect(throws: NotFound.self) {
      try await $recordID.load(Record.select(\.id))
    }
    #expect(recordID == 1)
    #expect($recordID.loadError is NotFound)
  }

  @Test func optionalStatementInit() async throws {
    @FetchOne(Record.all) var record
    try await $record.load()
    #expect(record == Record(id: 1))
    #expect($record.loadError == nil)
    try await database.write { try Record.delete().execute($0) }
    try await $record.load()
    #expect(record == nil)
    #expect($record.loadError == nil)

    try await $record.load(Record.all)
    #expect(record == nil)
    #expect($record.loadError == nil)
  }

  @Test func optionalStatementInit_Selection() async throws {
    @FetchOne(Record.select(\.parentID)) var id: Int?
    try await $id.load()
    #expect(id == nil)
    #expect($id.loadError == nil)
    try await database.write { try Record.delete().execute($0) }
    try await $id.load()
    #expect(id == nil)
    #expect($id.loadError == nil)

    try await $id.load(Record.select(\.parentID))
    #expect(id == nil)
    #expect($id.loadError == nil)
  }

  @Test func fetchOneOptional() async throws {
    @FetchOne(Record.find(1)) var record: Record?
    #expect(record != nil)
    try await $record.load(Record.find(1))
    #expect(record != nil)
  }

  @Test func fetchOneDelayedAssignment() async throws {
    @FetchOne var record: Record
    _record = FetchOne(wrappedValue: Record(id: 0), Record.all)
    #expect(record.id == 1)
  }

  @Test func fetchOneSelection() async throws {
    do {
      @FetchOne var row: Row?
      #expect($row.loadError == nil)
    }
    do {
      @FetchOne var row = Row(id: 1)
      #expect($row.loadError == nil)
    }
  }

  @available(*, deprecated)
  @Test func fetchOneSelection_Deprecated() async throws {
    #if canImport(SwiftUI)
      do {
        @FetchOne(animation: .default) var row: Row?
        #expect($row.loadError == nil)
      }
      do {
        @FetchOne(animation: .default) var row = Row(id: 1)
        #expect($row.loadError == nil)
      }
    #endif
  }
}

@Table
private struct Record: Equatable {
  let id: Int
  var parentID: Int?
  @Column(as: Date.UnixTimeRepresentation.self)
  var date = Date(timeIntervalSince1970: 42)
  @Column(as: Date?.UnixTimeRepresentation.self)
  var optionalDate: Date?
}

@Selection
private struct Row {
  let id: Int
}

extension DatabaseWriter where Self == DatabaseQueue {
  fileprivate static func database() throws -> DatabaseQueue {
    let database = try DatabaseQueue()
    try database.write { db in
      try #sql(
        """
        CREATE TABLE "records" (
          "id" INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
          "parentID" INTEGER,
          "date" INTEGER NOT NULL DEFAULT 42,
          "optionalDate" INTEGER
        )
        """
      )
      .execute(db)
      for _ in 1...3 {
        _ = try Record.insert { Record.Draft() }.execute(db)
      }
    }
    return database
  }
}