// Copyright (C) 2019 Parrot Drones SAS
//
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import XCTest
@testable import GroundSdk
@testable import GroundSdkMock

/// Test main GroundSdk sessions
class GroundSdkSessionsTests: XCTestCase {

    var mockGroundSdk: MockGroundSdk?

    override func setUp() {
        super.setUp()
        mockGroundSdk = MockGroundSdk()
    }

    override func tearDown() {
        mockGroundSdk = nil
    }

    /// Checks that engines are started and stopped
    func testOpenClose() {
        // create a first GroundSdk
        var gsdk1: GroundSdk? = GroundSdk()
        _ = gsdk1
        assertThat(mockGroundSdk!.engine.started, equalTo(true))
        // delete the first GroundSdk
        gsdk1 = nil
        assertThat(mockGroundSdk!.engine.started, equalTo(false))
        // create a first GroundSdk
        gsdk1 = GroundSdk()
        // create a second GroundSdk
        var gsdk2: GroundSdk? = GroundSdk()
        _ = gsdk2
        assertThat(mockGroundSdk!.engine.started, equalTo(true))
        // delete the second GroundSdk. The engine should not be stopped because the first one is still binded
        gsdk2 = nil
        assertThat(mockGroundSdk!.engine.started, equalTo(true))
        // delete the first GroundSdk
        gsdk1 = nil
        assertThat(mockGroundSdk!.engine.started, equalTo(false))
    }
}
