add swiftUI code

2025-01-22 14:09:10 +08:00
parent 68e7b7347c
commit 8a99853829
2531 changed files with 486215 additions and 0 deletions
@@ -0,0 +1,55 @@
+import XCTest
+import GRDB
+
+private class FetchableParent : DatabaseValueConvertible, CustomStringConvertible {
+    var databaseValue: DatabaseValue { "Parent".databaseValue }
+    
+    class func fromDatabaseValue(_ dbValue: DatabaseValue) -> Self? {
+        self.init()
+    }
+    
+    required init() {
+    }
+    
+    var description: String { "Parent" }
+}
+
+private class FetchableChild : FetchableParent {
+    /// Returns a value that can be stored in the database.
+    override var databaseValue: DatabaseValue {
+        "Child".databaseValue
+    }
+    
+    override var description: String { "Child" }
+}
+
+class DatabaseValueConvertibleSubclassTests: GRDBTestCase {
+    
+    func testParent() throws {
+        let dbQueue = try makeDatabaseQueue()
+        try dbQueue.inDatabase { db in
+            try db.execute(sql: "CREATE TABLE parents (name TEXT)")
+            try db.execute(sql: "INSERT INTO parents (name) VALUES (?)", arguments: [FetchableParent()])
+            let string = try String.fetchOne(db, sql: "SELECT * FROM parents")!
+            XCTAssertEqual(string, "Parent")
+            let parent = try FetchableParent.fetchOne(db, sql: "SELECT * FROM parents")!
+            XCTAssertEqual(parent.description, "Parent")
+            let parents = try FetchableParent.fetchAll(db, sql: "SELECT * FROM parents")
+            XCTAssertEqual(parents.first!.description, "Parent")
+        }
+    }
+
+    func testChild() throws {
+        let dbQueue = try makeDatabaseQueue()
+        try dbQueue.inDatabase { db in
+            try db.execute(sql: "CREATE TABLE children (name TEXT)")
+            try db.execute(sql: "INSERT INTO children (name) VALUES (?)", arguments: [FetchableChild()])
+            let string = try String.fetchOne(db, sql: "SELECT * FROM children")!
+            XCTAssertEqual(string, "Child")
+            let child = try FetchableChild.fetchOne(db, sql: "SELECT * FROM children")!
+            XCTAssertEqual(child.description, "Child")
+            let children = try FetchableChild.fetchAll(db, sql: "SELECT * FROM children")
+            XCTAssertEqual(children.first!.description, "Child")
+        }
+    }
+}