Create DatabaseErrorTests

Author: Alexander-Ignition

Sources/SQLyra/DatabaseError.swift

@@ -35,7 +35,7 @@ public struct DatabaseError: Error, Equatable, Hashable {
 // MARK: - CustomNSError
 
 extension DatabaseError: CustomNSError {
-    public static let errorDomain = "SQLyra.DatabaseError"
+    public static let errorDomain = "SQLyra.DatabaseErrorDomain"
 
     public var errorCode: Int { Int(code) }
 

Tests/SQLyraTests/DatabaseErrorTests.swift

@@ -0,0 +1,29 @@
+import Foundation
+import SQLyra
+import Testing
+
+struct DatabaseErrorTests {
+
+    @Test func localizedDescription() async throws {
+        let error: any Error = DatabaseError(code: 25, message: "A", details: "B")
+        #expect(error.localizedDescription == "A")
+    }
+
+    @Test func nsError() {
+        let error = DatabaseError(code: 12, message: "A", details: "B") as NSError
+        #expect(error.domain == "SQLyra.DatabaseErrorDomain")
+        #expect(error.code == 12)
+
+        for (key, value) in error.userInfo {
+            switch (key, value) {
+            case (NSLocalizedDescriptionKey, let string as String):
+                #expect(string == "A")
+            case (NSLocalizedFailureReasonErrorKey, let string as String):
+                #expect(string == "B")
+            default:
+                Issue.record("Unexpected \(key)=\(value)")
+            }
+        }
+    }
+
+}