package community.yuvomi.mobile

import org.junit.Assert.assertFalse
import org.junit.Assert.assertTrue
import org.junit.Test

class SelectionGateTest {
    @Test fun acceptsOnlyTheInitiatingContextOnce() {
        val gate = SelectionGate()
        assertTrue(gate.begin(0))
        assertTrue(gate.consume(0))
        assertFalse(gate.consume(0))
    }

    @Test fun serverSwitchCannotDeliverAnOldSelectionToTheNewServer() {
        val gate = SelectionGate()
        assertTrue(gate.begin(0))
        assertFalse(gate.begin(1))
        assertFalse(gate.consume(1))
        assertTrue(gate.begin(1))
        assertTrue(gate.consume(1))
    }

    @Test fun processRecreationCancelsSelectionWithoutReusingItsCallback() {
        val gate = SelectionGate()
        gate.restoreOutstanding()
        assertFalse(gate.begin(0))
        assertFalse(gate.consume(0))
        assertTrue(gate.begin(0))
    }
}