element-ios/RiotTests/EmojiStoreTests.swift

/*
 Copyright 2021 New Vector Ltd

 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at

 http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 */

import XCTest

@testable import Riot

class EmojiStoreTests: XCTestCase {

    private lazy var store = loadStore()

    // MARK: - Tests

    func testFinds💯WhenSearchingForHundred() {
        find("hundred", expect: "💯")
    }

    func testFinds💯WhenSearchingFor100() {
        find("100", expect: "💯")
    }

    func testFinds2️⃣WhenSearchingForTwo() {
        find("two", expect: "2️⃣")
    }

    func testFinds2️⃣WhenSearchingFor2() {
        find("2", expect: "2️⃣")
    }

    // MARK: - Helpers

    private func loadStore() -> EmojiStore {
        let store = EmojiStore()
        let emojiService = EmojiMartService()
        let expectation = self.expectation(description: "The wai-ai-ting is the hardest part")

        emojiService.getEmojiCategories { response in
            switch response {
            case .success(let categories):
                store.set(categories)
                expectation.fulfill()
            case .failure(let error):
                XCTFail("Failed to load emojis: \(error)")
            }
        }

        waitForExpectations(timeout: 2) { error in
            XCTAssertNil(error)
        }

        return store
    }

    private func find(_ searchText: String, expect emoji: String) {
        let emojis = store.findEmojiItemsSortedByCategory(with: searchText).flatMap { $0.emojis.map { $0.value } }
        XCTAssert(emojis.contains(emoji), "Search text \"\(searchText)\" should find \"\(emoji)\" but only found \(emojis)")
    }

}