Trio/LoopKit/LoopKitTests/Persistence/CachedGlucoseObjectTests.swift

//
//  CachedGlucoseObjectTests.swift
//  LoopKitTests
//
//  Copyright © 2018 LoopKit Authors. All rights reserved.
//

import XCTest
@testable import LoopKit

class CachedGlucoseObjectTests: PersistenceControllerTestCase {

    func testUUIDUniqueConstraint() {
        cacheStore.managedObjectContext.performAndWait {
            let uuid = UUID()

            let object1 = CachedGlucoseObject(context: cacheStore.managedObjectContext)
            object1.setDefaultValues()
            object1.uuid = uuid

            try! cacheStore.managedObjectContext.save()

            let object2 = CachedGlucoseObject(context: cacheStore.managedObjectContext)
            object2.setDefaultValues()
            object2.uuid = uuid

            try! cacheStore.managedObjectContext.save()

            let objects: [CachedGlucoseObject] = cacheStore.managedObjectContext.all()
            XCTAssertEqual(1, objects.count)
        }
    }

    func testSyncIdentifierUniqueConstraint() {
        cacheStore.managedObjectContext.performAndWait {
            let uuid = UUID()

            let object1 = CachedGlucoseObject(context: cacheStore.managedObjectContext)
            object1.setDefaultValues()
            object1.syncIdentifier = uuid.uuidString

            try! cacheStore.managedObjectContext.save()

            let object2 = CachedGlucoseObject(context: cacheStore.managedObjectContext)
            object2.setDefaultValues()
            object2.syncIdentifier = uuid.uuidString

            try! cacheStore.managedObjectContext.save()

            let objects: [CachedGlucoseObject] = cacheStore.managedObjectContext.all()
            XCTAssertEqual(1, objects.count)
        }
    }

    func testAllUniqueConstraints() {
        cacheStore.managedObjectContext.performAndWait {
            let uuid = UUID()

            let object1 = CachedGlucoseObject(context: cacheStore.managedObjectContext)
            object1.setDefaultValues()
            object1.uuid = uuid
            object1.syncIdentifier = uuid.uuidString

            try! cacheStore.managedObjectContext.save()

            let object2 = CachedGlucoseObject(context: cacheStore.managedObjectContext)
            object2.setDefaultValues()
            object2.uuid = uuid
            object2.syncIdentifier = uuid.uuidString

            try! cacheStore.managedObjectContext.save()

            let objects: [CachedGlucoseObject] = cacheStore.managedObjectContext.all()
            XCTAssertEqual(1, objects.count)
        }
    }

    func testSaveWithDefaultValues() {
        cacheStore.managedObjectContext.performAndWait {
            let object1 = CachedGlucoseObject(context: cacheStore.managedObjectContext)
            object1.setDefaultValues()

            try! cacheStore.managedObjectContext.save()

            let object2 = CachedGlucoseObject(context: cacheStore.managedObjectContext)
            object2.setDefaultValues()

            try! cacheStore.managedObjectContext.save()

            let objects: [CachedGlucoseObject] = cacheStore.managedObjectContext.all()
            XCTAssertEqual(2, objects.count)
        }
    }

}


extension CachedGlucoseObject {
    fileprivate func setDefaultValues() {
        provenanceIdentifier = "CachedGlucoseObjectTests"
        startDate = Date()
        uuid = UUID()
        syncIdentifier = uuid!.uuidString
        unitString = "mg/dL"
        value = 99
    }
}