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EditAStoryUseCaseTest.kt
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EditAStoryUseCaseTest.kt
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/*
* Copyright (C) 2022 Hadi Satrio
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.hadisatrio.apps.kotlin.journal3.story
import com.hadisatrio.apps.kotlin.journal3.datetime.LiteralTimestamp
import com.hadisatrio.apps.kotlin.journal3.event.UnsupportedEvent
import com.hadisatrio.apps.kotlin.journal3.sentiment.Sentiment
import com.hadisatrio.apps.kotlin.journal3.story.fake.FakeStories
import com.hadisatrio.apps.kotlin.journal3.token.TokenableString
import com.hadisatrio.libs.kotlin.foundation.event.CancellationEvent
import com.hadisatrio.libs.kotlin.foundation.event.CompletionEvent
import com.hadisatrio.libs.kotlin.foundation.event.RecordedEventSource
import com.hadisatrio.libs.kotlin.foundation.event.SelectionEvent
import com.hadisatrio.libs.kotlin.foundation.event.TextInputEvent
import com.hadisatrio.libs.kotlin.foundation.modal.Modal
import com.hadisatrio.libs.kotlin.foundation.modal.ModalApprovalEvent
import com.hadisatrio.libs.kotlin.foundation.modal.ModalDismissalEvent
import com.hadisatrio.libs.kotlin.foundation.presentation.Presenter
import io.kotest.matchers.collections.shouldBeEmpty
import io.kotest.matchers.collections.shouldHaveSize
import io.kotest.matchers.shouldBe
import io.mockk.mockk
import io.mockk.verify
import kotlinx.datetime.Instant
import kotlin.test.Test
class EditAStoryUseCaseTest {
private val stories = FakeStories()
private val story = stories.new()
@Test
fun `Updates the target story-in-edit`() {
EditAStoryUseCase(
story = UpdateDeferringStory(story as EditableStory),
stories = stories,
presenter = mockk(relaxed = true),
modalPresenter = mockk(relaxed = true),
eventSource = RecordedEventSource(
TextInputEvent("title", "Foo"),
TextInputEvent("synopsis", "Bar"),
SelectionEvent("action", "commit")
),
eventSink = mockk(relaxed = true)
)()
story.title.shouldBe("Foo")
story.synopsis.shouldBe(TokenableString("Bar"))
}
@Test
fun `Prevents accidental cancellation by the user when a meaningful edit has been made`() {
val modalPresenter = mockk<Presenter<Modal>>(relaxed = true)
EditAStoryUseCase(
story = UpdateDeferringStory(story),
stories = stories,
presenter = mockk(relaxed = true),
modalPresenter = modalPresenter,
eventSource = RecordedEventSource(
TextInputEvent("title", "Foo"),
TextInputEvent("synopsis", "Bar"),
CancellationEvent("user"),
ModalDismissalEvent("edit_cancellation_confirmation"),
TextInputEvent("title", "Fizz"),
TextInputEvent("synopsis", "Buzz"),
SelectionEvent("action", "commit")
),
eventSink = mockk(relaxed = true)
)()
verify(exactly = 1) { modalPresenter.present(withArg { it.kind.shouldBe("edit_cancellation_confirmation") }) }
stories.shouldHaveSize(1)
stories.first().title.shouldBe("Fizz")
stories.first().synopsis.toString().shouldBe("Buzz")
}
@Test
fun `Does not prevent accidental cancellation by the user when a meaningful edit has not been made`() {
val modalPresenter = mockk<Presenter<Modal>>(relaxed = true)
EditAStoryUseCase(
story = UpdateDeferringStory(story),
stories = stories,
presenter = mockk(relaxed = true),
modalPresenter = modalPresenter,
eventSource = RecordedEventSource(
TextInputEvent("title", "Foo"),
TextInputEvent("synopsis", "Bar"),
TextInputEvent("title", ""),
TextInputEvent("synopsis", ""),
CancellationEvent("user")
),
eventSink = mockk(relaxed = true)
)()
verify(inverse = true) {
modalPresenter.present(withArg { it.kind.shouldBe("edit_cancellation_confirmation") })
}
stories.shouldBeEmpty()
}
@Test
fun `Deletes the story-in-edit when it is a new one and the user cancels without editing`() {
val modalPresenter = mockk<Presenter<Modal>>(relaxed = true)
EditAStoryUseCase(
story = UpdateDeferringStory(story),
stories = stories,
presenter = mockk(relaxed = true),
modalPresenter = modalPresenter,
eventSource = RecordedEventSource(
CancellationEvent("user"),
ModalApprovalEvent("edit_cancellation_confirmation")
),
eventSink = mockk(relaxed = true)
)()
verify(inverse = true) {
modalPresenter.present(withArg { it.kind.shouldBe("edit_cancellation_confirmation") })
}
stories.shouldBeEmpty()
}
@Test
fun `Does not delete the story-in-edit when it is an existing one even if the user cancels without editing`() {
val modalPresenter = mockk<Presenter<Modal>>(relaxed = true)
story.update("Fizz")
EditAStoryUseCase(
story = UpdateDeferringStory(story),
stories = stories,
presenter = mockk(relaxed = true),
modalPresenter = modalPresenter,
eventSource = RecordedEventSource(
CancellationEvent("user"),
ModalApprovalEvent("edit_cancellation_confirmation"),
SelectionEvent("action", "commit")
),
eventSink = mockk(relaxed = true)
)()
verify(inverse = true) {
modalPresenter.present(withArg { it.kind.shouldBe("edit_cancellation_confirmation") })
}
stories.shouldHaveSize(1)
stories.first().title.shouldBe("Fizz")
}
@Test(timeout = 5_000)
fun `Stops upon receiving cancellation events`() {
listOf(CancellationEvent("system")).forEach { event ->
EditAStoryUseCase(
story = UpdateDeferringStory(story),
stories = stories,
presenter = mockk(relaxed = true),
modalPresenter = mockk(relaxed = true),
eventSource = RecordedEventSource(event),
eventSink = mockk(relaxed = true)
)()
}
}
@Test(timeout = 5_000)
fun `Ignores unknown events without repercussions`() {
EditAStoryUseCase(
story = UpdateDeferringStory(story),
stories = stories,
presenter = mockk(relaxed = true),
modalPresenter = mockk(relaxed = true),
eventSource = RecordedEventSource(
TextInputEvent("foo", "Bar"),
SelectionEvent("fizz", LiteralTimestamp(Instant.DISTANT_FUTURE).toString()),
SelectionEvent("buzz", Sentiment(0.75F).toString()),
ModalApprovalEvent("lorem"),
CancellationEvent("system"),
UnsupportedEvent(),
CompletionEvent()
),
eventSink = mockk(relaxed = true)
)()
}
}