WIP: Unit tests

CoreStoreTests/TweakTests.swift

@@ -0,0 +1,53 @@
+//
+//  TweakTests.swift
+//  CoreStore
+//
+//  Copyright © 2016 John Rommel Estropia
+//
+//  Permission is hereby granted, free of charge, to any person obtaining a copy
+//  of this software and associated documentation files (the "Software"), to deal
+//  in the Software without restriction, including without limitation the rights
+//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//  copies of the Software, and to permit persons to whom the Software is
+//  furnished to do so, subject to the following conditions:
+//
+//  The above copyright notice and this permission notice shall be included in all
+//  copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+//  SOFTWARE.
+//
+
+import XCTest
+
+@testable
+import CoreStore
+
+
+//MARK: - TweakTests
+
+final class TweakTests: XCTestCase {
+    
+    @objc
+    dynamic func test_ThatTweakClauses_ApplyToFetchRequestsCorrectly() {
+        
+        let predicate = NSPredicate(format: "%K == %@", "key", "value")
+        let tweak = Tweak {
+            
+            $0.fetchOffset = 100
+            $0.fetchLimit = 200
+            $0.predicate = predicate
+        }
+        let request = NSFetchRequest()
+        tweak.applyToFetchRequest(request)
+        XCTAssertEqual(request.fetchOffset, 100)
+        XCTAssertEqual(request.fetchLimit, 200)
+        XCTAssertNotNil(request.predicate)
+        XCTAssertEqual(request.predicate, predicate)
+    }
+}