mirror of
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112 lines
4.4 KiB
Swift
112 lines
4.4 KiB
Swift
//
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// MigrationChainTests.swift
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// CoreStore
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//
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// Copyright © 2016 John Rommel Estropia
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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//
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import XCTest
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@testable
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import CoreStore
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class MigrationChainTests: XCTestCase {
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@objc dynamic func testEmptyChain() {
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let chain: MigrationChain = nil
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expect(chain.valid).to(beTrue())
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expect(chain.empty).to(beTrue())
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expect(chain.contains("version1")).to(beFalse())
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expect(chain.nextVersionFrom("version1")).to(beNil())
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}
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@objc dynamic func testSingleChain() {
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let chain: MigrationChain = "version1"
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expect(chain.valid).to(beTrue())
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expect(chain.empty).to(beTrue())
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expect(chain.contains("version1")).to(beTrue())
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expect(chain.contains("version2")).to(beFalse())
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expect(chain.nextVersionFrom("version1")).to(beNil())
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expect(chain.nextVersionFrom("version2")).to(beNil())
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}
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@objc dynamic func testLinearChain() {
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let chain: MigrationChain = ["version1", "version2", "version3", "version4"]
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expect(chain.valid).to(beTrue())
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expect(chain.empty).to(beFalse())
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expect(chain.contains("version1")).to(beTrue())
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expect(chain.contains("version2")).to(beTrue())
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expect(chain.contains("version3")).to(beTrue())
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expect(chain.contains("version4")).to(beTrue())
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expect(chain.contains("version5")).to(beFalse())
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expect(chain.nextVersionFrom("version1")).to(equal("version2"))
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expect(chain.nextVersionFrom("version2")).to(equal("version3"))
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expect(chain.nextVersionFrom("version3")).to(equal("version4"))
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expect(chain.nextVersionFrom("version4")).to(beNil())
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expect(chain.nextVersionFrom("version5")).to(beNil())
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}
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@objc dynamic func testTreeChain() {
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let chain: MigrationChain = [
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"version1": "version4",
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"version2": "version3",
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"version3": "version4"
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]
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expect(chain.valid).to(beTrue())
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expect(chain.empty).to(beFalse())
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expect(chain.contains("version1")).to(beTrue())
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expect(chain.contains("version2")).to(beTrue())
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expect(chain.contains("version3")).to(beTrue())
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expect(chain.contains("version4")).to(beTrue())
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expect(chain.contains("version5")).to(beFalse())
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expect(chain.nextVersionFrom("version1")).to(equal("version4"))
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expect(chain.nextVersionFrom("version2")).to(equal("version3"))
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expect(chain.nextVersionFrom("version3")).to(equal("version4"))
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expect(chain.nextVersionFrom("version4")).to(beNil())
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expect(chain.nextVersionFrom("version5")).to(beNil())
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// The cases below will trigger assertion failures internally
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// let linearLoopChain: MigrationChain = ["version1", "version2", "version1", "version3", "version4"]
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// XCTAssertFalse(linearLoopChain.valid, "linearLoopChain.valid")
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//
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// let treeAmbiguousChain: MigrationChain = [
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// "version1": "version4",
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// "version2": "version3",
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// "version1": "version2",
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// "version3": "version4"
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// ]
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// XCTAssertFalse(treeAmbiguousChain.valid, "treeAmbiguousChain.valid")
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}
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}
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