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fenix/app/src/test/java/org/mozilla/fenix/perf/StartupTimelineStateMachine...

45 lines
1.9 KiB
Kotlin

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.fenix.perf
import org.junit.Assert.assertEquals
import org.junit.Test
import org.mozilla.fenix.perf.StartupTimelineStateMachine.StartupActivity
import org.mozilla.fenix.perf.StartupTimelineStateMachine.StartupDestination
import org.mozilla.fenix.perf.StartupTimelineStateMachine.StartupDestination.APP_LINK
import org.mozilla.fenix.perf.StartupTimelineStateMachine.StartupDestination.HOMESCREEN
import org.mozilla.fenix.perf.StartupTimelineStateMachine.StartupDestination.UNKNOWN
import org.mozilla.fenix.perf.StartupTimelineStateMachine.StartupState.Cold
import org.mozilla.fenix.perf.StartupTimelineStateMachine.getNextState
class StartupTimelineStateMachineTest {
@Test
fun `GIVEN state cold-unknown WHEN home activity is first shown THEN we are in cold-homescreen state`() {
val actual = getNextState(Cold(UNKNOWN), StartupActivity.HOME)
assertEquals(Cold(HOMESCREEN), actual)
}
@Test
fun `GIVEN state cold-unknown WHEN intent receiver activity is first shown THEN we are in cold-app-link state`() {
val actual = getNextState(Cold(UNKNOWN), StartupActivity.INTENT_RECEIVER)
assertEquals(Cold(APP_LINK), actual)
}
@Test
fun `GIVEN state cold + known destination WHEN any activity is passed in THEN we remain in the same state`() {
val knownDestinations = StartupDestination.values().filter { it != UNKNOWN }
val allActivities = StartupActivity.values()
knownDestinations.forEach { destination ->
val initial = Cold(destination)
allActivities.forEach { activity ->
val actual = getNextState(initial, activity)
assertEquals("$destination $activity", initial, actual)
}
}
}
}