//
// Copyright 2023 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 Foundation

import XCTest

@testable import ElementX

class ArrayTests: XCTestCase {
    func testGrouping() {
        XCTAssertEqual([].groupBy { $0 == 0 }, [])
        
        XCTAssertEqual([0].groupBy { $0 == 0 }, [[0]])
        
        XCTAssertEqual([1].groupBy { $0 == 0 }, [[1]])
        
        XCTAssertEqual([0, 0, 0].groupBy { $0 == 0 }, [[0, 0, 0]])
        
        XCTAssertEqual([1, 1, 1].groupBy { $0 == 0 }, [[1], [1], [1]])
        
        XCTAssertEqual([1, 0, 0, 1].groupBy { $0 == 0 }, [[1], [0, 0], [1]])
        
        XCTAssertEqual([0, 0, 1, 0].groupBy { $0 == 0 }, [[0, 0], [1], [0]])
        
        XCTAssertEqual([0, 0, 0, 1, 2, 3, 0].groupBy { $0 == 0 }, [[0, 0, 0], [1], [2], [3], [0]])
        
        XCTAssertEqual([0, 0, 0, 1, 2, 3, 0, 0].groupBy { $0 == 0 }, [[0, 0, 0], [1], [2], [3], [0, 0]])
        
        XCTAssertEqual([0, 0, 0, 1, 0, 2, 3, 0, 0].groupBy { $0 == 0 }, [[0, 0, 0], [1], [0], [2], [3], [0, 0]])
    }
}